Kenwood Information Index

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Amateur and LMR Index Page
Originally Compiled and HTML'd by Mike Morris WA6ILQ
Formerly Maintained by Robert Meister WA1MIK
Currently Maintained by Mike Morris WA6ILQ.

Click here or on the logo above for the main Kenwood web site

This page has undergone a major reorganization.
Everything is all still here; items just got moved.
Use your browser's SEARCH function
to find things, as they're now sorted better.

Contact / Service / Parts Information:
(This information may be out-of-date; check Kenwood's web page for current information.)
Updates welcome!

USA West Coast USA East Coast Canada

Kenwood Communications Corp.
2201 East Dominguez Street
PO Box 22745
Long Beach, CA 90801-5745 USA
Customer support: 310-639-4200
Repair locations and parts: 800-KENWOOD
(or) 800-536-9663
Fax: 310-537-8235
http://www.kenwood.com/usa/com/ Kenwood Corporate Offices
3975 Johns Creek Court Suite 300
Suwanee, GA 30024
Main: (678) 474-4700
Fax: (678) 474-4730
http://www.kenwood.com/usa/ Kenwood Electronics Canada Inc.
6070 Kestrel Road
Mississauga, Ontario, Canada L5T1S8

Kenwood Service Center West
13030 Alondra Blvd., Suite 104
Cerritos, CA 90703-2257
Repairs Only: (562) 483-874
Fax: (562) 483-8749 Kenwood Service Center East
829 Lynnhaven Pkwy., Suite 130
Virginia Beach, VA 23452
Repairs Only: (757) 340-1702
Fax: (757) 340-6809 CLOSED in 2019

Pacific Coast Parts
Orders: (800) 262-1312
www.pacparts.com Kenwood Amateur Parts
(Also known as East Coast Transistor)
Orders: (800) 637-0388
www.kenwoodparts.com

Donations of information, especially PDFs of manuals that we don't have would be greatly appreciated.
Your author / page maintainer has little personal knowledge of Kenwood
radios beyond what he had to research as part of a project or projects.
Comments, corrections, critiques, suggestions and updates for this page (or any page) are appreciated.

If you have a hint, or a useful trick, please consider wiring it up, writing it up and sending it in.

Jump to: General Information Modifications and Repairs Model-Specific Information Manuals and Brochures

Separate pages: Kenwood 900 MHz Information Kenwood TKR Repeater Information

Don't forget ‑ Whenever you acquire a new-to-you synthesized commercial radio (any brand, any type, portable, mobile, repeater, anything) remember to download and save the code plug that it came with (with the frequencies that were in it) and archive it. And I'd save your tuning data as well. If you screw up later on then having those original file(s) allows you to backstep and restore the radio back to where you started and you can try again. Just save the code plug and the tuning data on your hard drive and use the radio serial number as the file name (example: kw_tk-840_90500789.dat_original), "_original" in this case meaning original to you. It's much better to waste a few kilobytes of hard drive space on a backup you may never need than to need a backup you don't have and can't get.

General Information

Kenwood seems to use the following convention for radio model numbers:
TK- for Commercial (two-way) Land Mobile Radios (LMR),
TKB- for Commercial LMR Base Stations,
TKR- for Commercial LMR Repeaters,
NX- for Commercial LMR digital portable and mobile radios ("NextEdge" is their digital protocol),
NXR- for Commercial LMR digital Repeaters,
TH- for Amateur Hand-held (portable) radios,
TM- for Amateur Mobile radios,
TS- for Amateur Station radios.

TK / TKB / TKR-6xx and 6xxx seem to be low band,
TK / TKB / TKR-7xx and 7xxx seem to be VHF-highband,
TK / TKB / TKR-8xx and 8xxx seem to be UHF.
TKR and NXR for their LMR / commercial repeaters.

A Programming Cable note: Kenwood uses a variety of programming cables for their commercial radios.

The KPG-4 programming cable (click for photo, opens in a new browser tab) is a 6-pin modular connector (RJ-11 / RJ-12 / RJ14 style) used as the microphone / programming connector on older mobile radios – this connector is obsolete and not used on new Kenwood radios. The original KPG-4 cable had a female DB-25 on the computer end. The modern cable has a 9-pin "D" female connector to match todays computer COM port. Mosst of the older radios that use the KPG-4 tend to use MS-DOS based programming software and for those programs you will need a programming computer with a real serial port (a 9-pin male connector).

Some of the more common older radios have had the programming software software updated and reissued with Windows (and USB) compatibility. Three of the ones I've run into are:
KPG-47 v3.00 for the TKR-830, 740 and 840,
KPG-49 v4.21 for the TK-280-380-480-481-780-880-980-981 and
KPG-56 v4.22 for TK260G-TK-270G-TK-760G-TK868G.
The page author has used the above KPG-47 and KPG-49 programs with 32-bit Windows 7.

The KPG-8 has been superceeded by the KPG-22 programming cable and is described below. The KPG-8 cable required an external DC power source where the KPG-22 is powered from the computer COM port. Anyplace you see that a KPG-8 cable is specified you can substitute a KPG-22 cable.
The KPG-8 is obsolete and no longer available as a new product from Kenwood. It is hard to find on the used market. If anyone can provide a photo and / or a schematic we'd appreciate it and we'll publish both here.

The KPG-10 programming cable is for the TK-230 / TK-330 / TK-240 / TK340 radios (photo opens in a new browser tab). The computer end is a DB-25 female, the radio connector has 12 pins and is shipped with a clear plastic protective cap. This cable has a connector for a 9 volt battery. It is obsolete and no longer available as a new product from Kenwood and is hard to find on the used market. If anyone can provide a photo and / or a schematic we'd appreciate it and we'll publish both here.

The KPG-22 / KPG-22A programming cable is usedon handhelds and has two connectors spaced about 11mm apart, one is an 1/8-inch (3.5mm) mini plug and the second is a 1/16" (2.5mm) sub-mini plug. The original Kenwood KPG-22 programming cable has a 25-pin female connector on the computer end, the KPG-22A used a 9-pin connector (opens in a new browser tab)

Some people call the KPG-22 / 22A the "fang" cable because the two connectors look like the two fangs of a snake.
Motorola used a similar "fang" cable with different spacing between the two plugs. For a long time the 6-pin KPG-4 and the KPG22 "fang" cable was all you needed for Kenwood radios so naturally the aftermarkent cable industry came up with a dual KPG-4 and KPG-22 programming cable. Why can't they come up with a triple cable (a KPG-4, KPG-22 and KPG-46) today?
These days the most common version of the KPG-22 is the USB version (both photos open in a new browser tab)

Note: A number of chinese manufacturers (including Baofeng, Quansheng and Woxun) use the KPG-22 programming cable.

The KPG-36 programming cable is used on handhelds that have a 14-pin accessory (speaker/microphone/programming) connector on the side of the radio (both photos open in a new browser tab).

The KPG-43 programming cable is a 2-conductor cable on a round 12 pin microphone connector. (photo opens in a new browser tab) One of the product lines that use it is the TK-690 / TK-790 / TK-890 series.

The KPG-46 is a 3-wire programming cable used on the newer mobile radios - it has a 8-pin RJ-45 (Ethernet style) modular connector on the radio end. Note that Kenwood numbers the 8-pin mobile radio microphone jack pins backward from Ethernet. The original KPG-46 programming cable had a DB-25 on the computer end, the modern cable has a 9-pin "D" female connector to match the computer COM port. A number of aftermarket suppliers produce a USB version. photo of both KPG-46 programming cables (photo opens in a new browser tab)

If you are very careful with the KPG-4 cable (6-pin radio end) you can use it to program a radio that normally would use a KPG-46 (8-pin radio end) cable. The three active pins are in the correct position and if you carefully center the 6-pin plug into the 8-pin connector on the radio (using the click tab) it will work - most of the time. It can (and will be) intermittent so don't count on it, especially if the tab breaks off in the field (and it will).

Your page maintainer finally resolved the homebrew cable and KPG-4 versus KPG-46 issue by purchasing three cables from Mark Dunkle at www.bluemax49ers.com. (Off-site pointer - opens in a new browser tab): one dual KPG-4 and KPG-22 (9-pin female "D" connector), one KPG-46 (9-pin female "D" connector) and one of the USB FTDI KPG-46 cables. Those plus a KPG-36 handle almost all of his Kenwood field programming needs.
Mark's FTDI based USB cables DO NOT need any funny drivers and they just plain work. You can buy through his web page and avoid the eBay or Amazon markup. No, he's NOT paying me for providing this pointer.

You can build your own KPG-46 cable! by By Ephraim Gariguez DW1ZWS Off-site pointer, opens in a new browser tab.

Another Programming Cable note: Thanks to Chris WB5ITT for this tidbit…
Some Kenwood radios (the TK-780 and TK-880 are two) have a "gotcha"… the radio should be powered OFF when plugging in or unplugging the programming cable. The reason is that +8 volts DC is provided to the programming cable circuitry through a surface-mount resistor in the radio (pin 1 on the microphone jack). If that pin is accidentally shorted to ground the resistor is blown open and the programmer won't talk to the radio. The microphone will still work normally since it doesn't use that power… but the programming cable does.

Another Programming Suggestion: Newer Kenwood radios have a digital mode called NXDN. Icom's version of NXDN is called IDAS. Other manufacturers have DMR. Amateur radios have D-star, Fusion, and more. Public safety systems have P25. Many common wattmeters cannot read digital transmissions accurately. If you are running a digital repeater (any format or protocol) I suggest that you always program a conventional channel in your repeater codeplug even if you are running digital as the normal mode… having that conventional frequency available with no more than a couple of button presses on the repeater front panel allows quick and easy accurate RF power tests.

Some Thoughts on Radio Programming Computers and Laptops by Mike Morris WA6ILQ
If you do a lot of radio programming you might want to consider dedicating a laptop to radio programming. This article describes what the author uses and why… He prefers the CF‑29-30-31 series Toughbooks because they are cheap, Mil-Spec rugged, configurable, repairable and have a 9-pin hardware COM port that always works.
Note that the above article is an opinion piece… What works for him may or may not work for you…

Kenwood Land Mobile Radio (commercial) Products by Mike Morris WA6ILQ
A little background information and some model-specific information, and some contributions from others. Comments, Corrections and Updates are appreciated!

From an email to repeater-builder:
The following TK mobiles will all go down to 440 MHz: TK-805D TK-830 - see note below TK-840 TK-860 TK-860G TK-880 TK-8160 ... and probably more ... …as well as the following TKR repeaters: TKR-820 TKR-840 - see note below TKR-850 TKR-851 The TKR-840 does require a bit of a hack to get it down there, as the KPG-47D software won't let you enter anything below 450 MHz.
The KPG-47D software also programs the TKR-830, so it's likely that the same code plug hack works on that model too.
See this thread for info & the hex editing tool you'll probably need: https://forums.radioreference.com/threads/kenwood-tkr-840-uhf-repeater-need-help-programing-for-ham-frequencies.271724
Again this is for the TKR-840 but it MAY also work for the TKR-830.
The comment thread says that patching the KPG was attemped but didn't work. If a working patch is developed please let the page maintainer know. He'll add it here.

Note: Any KPG software with a "DN" suffix (i.e. KPG-91DN) will not allow programming wideband mode in a dual-mode radio. Unlike most Motorola software you can revert to a previous version (without the "N" suffix) and enable selection of wideband or narrowband.

A list of Kenwood Radios, the software needed, and the programming cables needed by Mike Morris WA6ILQ
The table shows which radios use MS-DOS based programming software, which ones have Windows based software, and more.
The basic information on this page is from 2008 and updated as we were given information. Updates appreciated!

Kenwood programming software names, versions, radios, and release dates Donated by Garrett Ramsey
This information is from 2012 Updates appreciated!

A newer list of software versions, radios, and release dates 70 kB PDF
This PDF'd information is from 2018, and since PDFs can't be changed any updates will be added to the upper page. Updates appreciated!

A list of updated software versions, products, and release dates 51 kB PDF by WA1MIK
You should check all of these version lists as none contain every programming product. Updates appreciated!

K9ROD maintains a list of Kenwood programming software versus radio here (opens in a new browser tab).

How to decode Kenwood radio serial numbers 9 kB PDF
Found on a now defunct web site, original author unknown.

A library of 16 different microphone, speaker/microphone, accessory plug, etc. connector diagrams 207 kB PDF Author unknown.
Someone found this on the web and sent it to us.

The 6-pin Modular Kenwood Microphone Connector (photo opens in a new browser tab)
This connector is used on the TK-705 / TK-805, the TK-740 / TK-840, the TK-760 / TK-860 and several other models. Someone found this on the web and sent it to us.

A comparison of several Kenwood Mobile Microphones by John Haserick W1GPO and Roger Coulson WA1NVC
FYI, amateur 8-pin Kenwood microphones are not wired the same as commercial 8-pin Kenwood microphones.

Detailed table of the signals on the Kenwood TK-7180 / TK-8180 Microphone Jack by Mike Morris WA6ILQ
Many other Kenwood commercial radios use the same microphone jack pinout. A customer needed a repair made to a specialty device that plugged into the microphone jack… Your page maintainer had to do some research… He created this from his workbench notes and posted it just in case it helps someone else.

Some notes on the "Packet connector" on the Kenwood TM-G707, TM-V7 and similar amateur radios by Mike Morris WA6ILQ
The TM-G707A, the TM-V7A and a couple of other models are programmed using the PG-4S cable which plugs into the front panel "packet" connector. You can make your own using info from the KA7O web site page on the PG-4S. (update: That link takes you to the Wayback machine saved page from November 6, 2017) Supposedly you can use an inexpensive KPG-4 (6 pin) or KPG-46 (8 pin) cable from eBay and cut off the radio end and add a 6-pin mini-DIN plug, or use the cable and plug from a dead PS/2 mouse), or make an adapter from a 6-pin or 8-pin jack and the plug end of a PS/2 style PC keyboard or PS/2 mouse extension cord.

Homebrew programming interface equivalent to the KPG-4 35 kB PDF from K9MN
The KPG-4 is the RS-232 to TTL cable that is used for programming most any commercial Kenwood radio that has a 6-pin (RJ-12) microphone jack. The KPG-46 is the 8-pin (RJ-45) version. There is enough info on the schematic to make your own.

Another version of the above KPG-4 homebrew replacement by Craig Clark N5XNQ, forwarded by KC7GF (schematic file opens in a new browser tab)
This schematic is similar to the above but with a lot more info - it shows both the DE-9 and DB-25 connections, the KPG-22 handheld connections and the the 6-pin KPG-4 microphone plug.

A programming interface similar to the above KPG-4 units (schematic file opens in a new browser tab)
This one corrects a few omissions in the above diagrams. Best of all, it actually works.

Kenwood has a software download page for some of their amateur products at https://www.kenwood.com/i/products/info/amateur/software_download.html. (opens in a new browser tab)

Modifications and Repairs

Replacement 2-Pin Radio DC Power Connectors
Ths connector is used on both mobiles, and on repeaters (like the TKR-x50s and NXR-x10s). Your page maintainer had to replace the power connectors on a number of Kenwood mobiles… TK-840s, TK-8160s, TK-8180s, TK-8360s and more. A friend had already researched the original connector and was happy to share his information.

Repairing the Toshiba S-AV17 RF power hybrid by Kevin Custer W3KKC
This module is used in the TM-241 single band radio, the 2 meter module used in the TM-741, and in other radios.

Converting the TK-6110 to 6-meters by John Haserick W1GPO and Roger Coulson WA1NVC

Converting the TK-690H to 6-meters by Roger Coulson WA1NVC

Adding Front-Panel Noise Blanker Control to a TK-690H by John Haserick W1GPO

Make the KPG-59D Programming Software Cover 10-meters and 6-meters by Robert W. Meister WA1MIK
This is the program that is used by the TK-6110 and TK-190 low-band radios. A few simple hex-edits are all it takes to expand the coverage into the ham bands. This same idea might also work for other bands and other KPG programming packages.

Modify a TK-805 for Repeater or Link Use 357 kB PDF by Dwayne WD8OYG at LDG Electronics
This is a generic modification writeup, not directed at any particular repeater controller.

Modifying the TK-830 radios for Link Use - Getting COS (and CTCSS) by Scott Badders K9SLN

Modifying the TK-860 TK-862 TK-760 TK-762 Radios for Link Use by Kyle Yoksh KØKN

Adding a valid CTCSS / DCS logic output to the TK-x60 and TK-x62 mobile radios 9 kB PDF (author unknown)

Adding a valid COS logic output to the TM-x31 mobile radios 172 kB PDF by Bill N6SGX and Kim KA1WCC
A color version 120 kB PDF
According to Joe K1IKE, the voltage at this point with the squelch fully open=0.025VDC; with the squelch fully closed=3.15VDC; with the squelch pot at the point that the audio mutes=1.05VDC. He used a Darlington transistor to cause switching at about 1.7VDC.

Model-Specific Information

900 MHz Information Manuals and more!

TKR Repeater Information Manuals and more!

Field programming the TK-270 or TK-370 Handhelds
A writeup on front panel programming of these models. It's somewhat cryptic and since I don't have one of the radios to experiment with, I can't build on it. If anyone wants to add some detail (or some photos) feel free to, then email it to me (the page maintainer listed above).

Kenwood Alternate Programming Procedure by Don Bindner
He had troubles reading/writing his TK-730 radio directly, so here's an alternative method to get them programmed.

A tip on the UHF TK-805 radio: BEFORE YOU BUY AN 805(D) CHECK THE VERSION NUMBER ON THE BACK. There are four different versions of the 805 and 805D and you need to look at the rear FCC ID# label. An FCC ID number ending with "-1" is for the 450-470 MHz band. A "-2" is for the 470-490 MHz band, a "-3" is for the 490-512 MHz band and a "-4" is for 406 to 430 MHz "government" band. The 450-470 MHz band TK-805D will work fine with no modifications in the ham bands, however you will need the "H" version to get 45 watts out of them. The stock non-H versions only put out around 30 watts.

TK-840 Tuning Modes and Alignment Access 42 kB PDF provided by John Rowe

TK-880 Information, including how to program it from the front panel. (offpage link to YO4HFU's TK-880 page at his web site)

Useful TM-V7A / TM-G707A programming information direct from Kenwood.

Some notes on the TR-7930 and TR-7950 by Mike Morris WA6ILQ
Rock solid radios in their day. A couple of friends had these, and used them until just a few years ago; they had Com-Spec external TD-32 PL encoder boxes strapped to their radios.

LED replacement bulbs for the TR-7930 and TR-7950 by Tony King W4ZT (SK)

TR-8300 Information by Mike Morris WA6ILQ
Includes some info on adding a CTCSS encoder to the TR-8300.

The Kenwood TK-7180 (VHF) / TK-8180 (UHF) Page by Mike Morris WA6ILQ
Information and articles on the VHF / UHF radio series.

Making the TK-715K work on the 222 MHz Amateur Band 3 MB PDF by Alex KD6VPH

Manuals and Brochures

The Kenwood publications group seems to have decided that a "dual band" radio is one that is capable of operating on two bands simultaneously
while a "twin band" or "two band" radio operates on only one band at a time.

900 MHz Information Manuals and more!

TKR Repeater Information Manuals and more!

KPT-20 Program/Test Set Instruction Manual 2.9 MB PDF

KPT-40 Field Programmer Instruction Manual 4.3 MB PDF

KPT-50 Field Programmer Instruction Manual 357 kB PDF

KRA-21 Field Tunable Antenna Cutting Info for TK-190 Series Low-Band Portable Transceivers 1.3 MB PDF

KRK-2 / KRK-3DH / KRK-4DB Remote Kit Service Manual 6.5 MB PDF donated by Brad KB9BPF
These are used with the TK-630/730/830 series radios. They provide remote control head mounting, dual control heads, and dual band remote operation.

KRK-7DB / KRK-8DBH Remote Kit Service Manual 715 kB PDF donated by Roger WA1NVC
These are used with the TK-690/790/890 series radios. They provide remote control head mounting, dual control heads, and dual band remote operation.

MC-46 DTMF and UP/DOWN Hand-held Microphone Schematic 50 kB PDF
Probably usable on many mobile radios with the 6-pin round mike connector.

PS-30 Operating Manual 190 kB PDF file courtesy of Greg Beat
PS-30 Schematic (with repair notes) 904 kB (schematic file opens in a new browser tab)

PS-50 Instruction Manual 600 kB PDF
For the TS-440S and others.

RC-10 Instruction Manual 2.5 MB PDF
Remote controller for the TM-221A/221E/221ES and TM-421A/421E/421ES. Donated by Brad KB9BPF.

RC-10 Service Manual 4.1 MB PDF
Remote controller for the TM-221A/221E/221ES and TM-421A/421E/421ES. Donated by Brad KB9BPF.

TH-D7A/E Service Manual 7.3 MB PDF
This is a dual-band handheld that has a built-in Packet / APRS TNC.

TH-D72A / TH-D72E Service Manual 16.6 MB PDF
The TH-D7A / TH-D72E is a dual-band handheld with a built-in GPS receiver and packet / APRS TNC. Includes options BT-15 and PB-45L. Donated by Brad KB9BPF.

TH-F6A / TH-F7E Service Manual 4.5 MB PDF
Includes options BT-13, PB-42L, PG-2W, PG-3J, SMC-32, SMc-33, SMC-34, EMC-3, HMC-3, KHS-21.
The F6A is a 144 MHz / 220 MHz / 440 MHz FM TRIBAND handheld, the F7E is the European 144 MHz / 430 MHz FM Dual Band handheld. The difference between the two radios is one diode.
Click here to read about a critical design flaw with the TH-F6A and TH-F7E radios.

TH-F6A / TH-F7E Service Manual Supplement 6.2 MB PDF

TH-F6 / TH-F7 Schematic Diagram 2.3 MB PDF

TH-G71A / TH-G71E Instruction Manual 2.6 MB PDF

TH-K2AT / TK-K2E / TH-K2ET / TH-K4AT / TK-K4E Instruction Manual 1.3 MB PDF

TH-41A/AT/E Service Manual 8.3 MB PDF
Includes options BT-2, EB-2, PB-21, DC-21, SC-8/8T, HMC-1, SMC-30, TU-6. Donated by Brad KB9BPF.

TH-41BT Service Manual 6.5 MB PDF donated by Brad KB9BPF

TH-78A Instruction Manual 294 kB PDF

TH-79A / TH-79E Instruction Manual 2.7 MB PDF

TH-79 A/E Service Manual 2.7 MB PDF
Includes options TSU-8, SC-41, SC-42, SC-43, BT-9.

TH-315A Service Manual 10 MB PDF
Includes options BC-7, BC-8, TSU-4. Donated by Brad KB9BPF.

TK-190 Sales Brochure 1 MB PDF

TK-190 Instruction Manual 190 kB PDF
This series uses the same battery, speaker/mike, programming cable, etc as the TK-380 and TK-481. The antenna connector on the radio is an SMA male.

TK-190 Service Manual Revised 4.0 MB PDF
Includes options KNB-17A, KMC-25A, KSC-19, KSC-20, KPG-36, KBP-4.

TK-240 Service Manual 14.1 MB PDF
Includes options KDM-5, KHS-1, KMC-8A, KWR-1, KLF-3, KNB-4/5/6, KQT-9, KSC-6, KSC-8, KSC-76, KSC-86. Donated by Brad KB9BPF.

TK-250 / TK-350 Instruction Manual 1.4 MB PDF

TK-255 / TK-355 sales brochure 282 kB PDF

TK-260 Service Manual 8 MB PDF
Includes option KNB-14, KNB-15A. Donated by Brad KB9BPF.

TK-260G/(N) / TK-270G/(N) Service Manual Revised 14.9 MB PDF
Includes options KNB-14, KNB-15A, KMC-17, KMC-21. Donated by Brad KB9BPF.

TK-270 / TK-278 Service Manual 4.4 MB PDF
Includes options KNB-14, KNB-15A. Donated by Brad KB9BPF.

TK-280 Service Manual Revised 13.8 MB PDF
Includes options KNB-16A, KNB-17A, KPG-36, KSC-19, KRA-14, KMC-25. Donated by Brad KB9BPF.

TK-290 Service Manual (1998 version) 856 kB PDF
Includes options KNB-17A, KMC-25, KMC-26, KSC-19, KSC-20, KPG-36, KRA-14.
Note: The TK-290 radio is only rated for up to 7.2vDC input! Do not use a mobile power cord directly from a 12v source without a voltage regulator in the cord.

TK-290 Service Manual Revised (2001 version) 3 MB PDF

TK-353 Instruction Manual 1.7 MB PDF donated by Brad KB9BPF

TK-353 Service Manual 17 MB PDF
Includes options KDM-7, KHS-1, KSC-76, KSC-8, KSC-86, KNB-11A, KNB-12A, KPG-22, KMC-17. Donated by Brad KB9BPF.

TK-353/(N) Service Manual Supplement 10 MB PDF donated by Brad KB9BPF

TK-360G / TK-370G Service Manual 12.5 MB PDF
Includes options KNB-14, KNB-15A, KNC-17, KMC-21. Donated by Brad KB9BPF.

TK-370 / TK-378 Service Manual 4.3 MB PDF
Includes options KNB-14, KNB-15A. Donated by Brad KB9BPF.

TK-380 Service Manual 24.4 MB PDF
Includes options KNB-16A, KNB-17A, KPG-36, KSC-19, KRA-15, KMC-25. Donated by Brad KB9BPF.

TK-380 Service Manual Revised 2.3 MB PDF
Includes options KNB-16A, KNB-17A, KPG-36, KSC-19, KRA-15, KMC-25. Donated by Brad KB9BPF.

TK-380 "E series" Service Manual 4.1 MB PDF

TK-390 Service Manual 15 MB PDF
Includes options KNB-17A, KMC-25, KSC-19, KSC-20, KPG-36, KRA-14. Donated by Brad KB9BPF.

TK-630H(B) Service Manual Revised 21.2 MB PDF donated by Brad KB9BPF

TK-690 / TK-790 / TK-890 Series Instruction Manual 530 kB PDF

TK-690H(B) Service Manual (2001 version) 5.5 MB PDF donated by Skip Clark WB6TXX

TK-705/B/N Service Manual Revised 10.6 MB PDF
Includes option KQT-8. Donated by Brad KB9BPF.

TK-705D / TK-805D Instruction Manual (1992 version) 350 kB PDF donated by James Lawrence

TK-715/(N) Service Manual Revised IV (1997 version) 6.6 MB PDF
Includes optios KMC-9, KPG-19. Donated by John Casullo N2QKV.

TK-730/(B)/(D) Service Manual 20 MB PDF donated by Brad KB9BPF

TK-730(G)/(GB) Service Manual 18 MB PDF donated by Brad KB9BPF

TK-730H/(B) Service Manual 20 MB PDF donated by Brad KB9BPF

TK-760 / TK-762/H Service Manual (1996 version, NO schematic) 1.5 MB PDF donated by Greg Beat W9GB

TK-760G / TK-762G Service Manual Revised (2000-1 version) 6.2 MB PDF

TK-760HG / TK-762HG Service Manual Supplement (2000-6 version) 4.2 MB PDF

TK-760HG / TK-762HG Service Manual Revised (2000-10 version) 5.7 MB PDF

TK-780 / TK-880 Series Instruction Manual 1.1 MB PDF
Also appropriate for the TK-980 (800 MHz) and TK-981 (900 MHz) models.

TK-780/H Service Manual Supplement 4.1 MB PDF donated by Brad KB9BPF

TK-790/(B) / TK-790H(B) Service Manual Revised (2001 version) 6.3 MB PDF
Note: This Service Manual applies to products with serial numbers 30300001 and higher. (KCH-10 and KCH-11 front panels are applicable to the productions June 2001 and after.) In terms of the products with the serial numbers earier than 30300001, refer to the TK-790/(B)/H(B) Service Manual as per part No. B51-8438-00 and the TK-790(B) Service Manual as per part No. B51-8456-00.

TK-790H(B) Supplement (2005 version) 450 kB PDF
Note: Applicable to units with serial numbers 60400001 and above.

TK-830/(B)/(D) Service Manual (1992 version) 12.2 MB PDF

TK-840 / TK-940 / TK-941 Instruction Manual 1.8 MB PDF

TK-840/(N) Service Manual Revised (1996 version) 12.2 MB PDF
Includes options KCT-19, KDD-4, KPG-25D. Donated by Brad KB9BPF.

TK-860G / TK-862G Service Manual Revised 6.2 MB PDF

TK-880 Service Manual Revised 7.5 MB PDF donated by Ray Miles K7LNA

TK-880/H Service Manual Supplement 4.1 MB PDF

TK-890/(B) / TK-890H(B) Service Manual Revised (2001 version) 6.3 MB PDF donated by Skip Clark WB6TXX

TK-6110 Sales Brochure 406 kB PDF

TK-6110 Instruction Manual 300 kB PDF

TK-6110 Service Manual 2.6 MB PDF
The 15-pin Accessory Connector pinout can be found on page 40 of this manual.

TK-6110 Service Manual Supplement 4.7 MB PDF
Supplement to the above service manual for serial numbers A8B00001 and higher.

TKB-720 Service Manual Part 1 of 2 56.6 MB PDF
Includes options KMC-9, KMS-5, KQT-7, KSK-2. Scanned by Harley KI7XF.

TKB-720 Service Manual Part 2 of 2 58.1 MB PDF
Includes options KMC-9, KMS-5, KQT-7, KSK-2. Scanned by Harley KI7XF.

TKR Repeater Information Manuals and more!

TM-211A/E Service Manual 10 MB PDF
Includes option TU-3A. Donated by Brad KB9BPF.

TM-221 / TM-321 / TM-421 A/E/ES Instruction Manual 2.3 MB PDF

TM-241 / TM-441 / TM-541 A/E Instruction Manual 2.3 MB PDF (vertical - oriented towards reading on the screen)
The same manual except horizontally oriented (for printing) 2.8 MB PDF

TM-241A/E Service Manual 6.0 MB PDF
Includes options DRU-1, DTU-2, MC-44, MC-44DM, MC-44DME, MC-44E, TSU-6, plus a note on extending the frequency ranges.

TM-251A/E Service Manual 16.3 MB PDF
Includes option PG-5A. Donated by Brad KB9BPF.

TM-261A / TM-261EJ / TM-461A Instruction Manual 2.9 MB PDF

TM-261A Service Manual 1.8 MB PDF

TM-261A Schematics 676 kB PDF

TM-271A / TM-271E Service Manual 1.8 MB PDF

TM-281A Service Manual 17.3 MB PDF donated by Brad KB9BPF

TM-321A Service Manual 3.9 MB PDF
Includes option TSU-5. Donated by Brad KB9BPF.

TM-331A Service Manual 9.4 MB PDF
Includes options DRU-1, MC-44, MC-44DM, TSU-6. Donated by Brad KB9BPF.

Dan N2AYM reports "I have repaired quite a few Kenwood TM-331 radios, replacing the memory batteries and RF Amp modules. The TM-231 / 331 / 241 / 441 / 541 models are of the same basic configuration inside and if you review the service manuals it is evident they are almost the same with the possible exception of the spectrum covered. They all use the same Lithium Memory backup battery. This part number has changed so the service manuals will have the old part number (W09-0326-05); the new number is W09-0599-05. When I called East Coast Transistor Parts their price was only $6.00 each which seems very reasonable. This battery is a CR2032s with solder tabs for installation in the control heads. When I replaced the RF Amp module (M57774), I found that there had never been any thermal compound between the amp mount and the heat sink, which may have been a production error and may have contributed to the amp's problem with excessive heat over a period of time. I naturally used thermal compound with the new one."

TM-461A Service Manual 7.5 MB PDF donated by Brad KB9BPF

TM-541A/E Service Manual 4.4 MB PDF
Includes options DRU-1, DTU-1, MC-44E, MC-44DM, MC-44DME, MC-44, TSU-6. Donated by Brad KB9BPF.

TM-621A Service Manual 13.3 MB PDF
Includes option TSU-6. Donated by Brad KB9BPF.

TM-631A Service Manual 13.6 MB PDF
Includes option TSU-6. Donated by Brad KB9BPF.

TM-641A / TM-741A / TM-741E Instruction Manual 6.6 MB PDF

A tip on the 641 / 741 / 642 / 742 series from Rian AG4ME: If you have no audio output and the light dimmer does not work, look at resistor R121 and maybe transistor Q102 in the control head becoming un-soldered.

TM-641A / TM-741A/E Service Manual 8.5 MB PDF
Includes options DTU-2, TSU-7, MC-45, MC-45DM, PG-4K, PG-4L.

TM-642A Service Manual 10.4 MB PDF
Only has parts lists, schematics, color X-ray views. For circuit descriptions and semiconductor information, refer to the TM-742A/E, TM-942A service manual B51-8192-00.

TM-642A / TM-742A/E, TM-942A Instruction Manual 3.7 MB PDF

TM-742A/E / TM-942A Service Manual 10.7 MB PDF
Includes options TSU-7, MC-45, MC-45DM, plus the UT-28S, UT-50S, UT-220S, UT440S, UT1200 band units.

Some notes from Mike WA6ILQ on the TM-641 / 741 / 941 / 642 / 742 / 942 radios:
1) If you need CTCSS/PL decode you will need to plug in a TSU-7 board. The firmware already "knows" about it.

2) The remote mount kit is a DFK-3, DFK-4 or DFK-7 (3 meters, 4 meters or 9 meter long cable).

3) A replacement microphone is a MC-45 (plain) or MC-45DM (with 16-button DTMF).

4) The TM-641 / 741 / 941 / 642 / 742 / 942 radios can draw as much as 12 amps on transmit, and the DC wire pigtail hanging from the back of the radio and the matching power cord that was shipped with it was, in my opinion, undersized in AWG. The transmitter is sensitive to low DC voltage, a voltage drop of less than a volt can cost you 25% of the transmit output power. Start by measuring the voltage at the radio while transmitting ‑ the simple way is to temporarily push a couple of sewing pins through the insulation of the power cable right by the strain relief at the back of the radio, then clip your VOM to the sewing pins). While you are keydown compare the voltage at battery to the voltage at the radio. If the voltage drop is excessive while transmitting then you need to change the wiring to a larger AWG size (lower resistance) wire. Been there twice, done that twice, got the t-shirt (but not the coffee cup). I had close to a volt of loss between the battery and the the back of the radio. I replaced the short pigtail built into the back of the radio with the heaviest red / black zip cord I could find and changed to Anderson Power Poles instead of the stock "T" connector. At the time the biggest red / black zip cord available to me was 12 gauge, but since then I've seen 10 gauge on a spool at the local HRO store. Be careful, don't trust the outside diameter of the insulation to be indicative of the internal conductor size; look at the cross-section of the actual copper.

5) The TM-641 / 741 / 941 / 642 / 742 / 942 radios use a solder-tab-style CR2025 coin cell for memory backup. The coin cell seems to last forever if you keep 12v applied to the radio, or just a few years if it's in storage. If your radio needs a new battery I strongly suggest you replace the solder-tab coin cell with a socket. Here's an exploded drawing of how to get to it. There is barely enough space inside the radio for a coin cell socket - I had to file the edges of the plastic socket body down a little on each side to make it fit. The socket needs to be a vertical socket with top access (i.e. the cell is positioned at right angles to the circuit board). Here's a photo of the coin cell socket I used (thanks to Joe Orrico WB6HRO for the tip). (both image files open in a new browser tab)

TM-701A/E Service Manual 12.1 MB PDF
Includes options MC-44, MC-44DM, MC-44DME, MC-44E, TSU-6. Donated by Brad KB9BPF.

TM-721A/E Service Manual 15.9 MB PDF
The manual includes CTCSS decode option TSU-6.

TM-731A/E Service Manual 15.5 MB PDF
Includes option TSU-6 and some service bulletins. Donated by Brad KB9BPF.

TM-732A/E Service Manual 5.8 MB PDF
Includes options MC-45, MC-45DM, PG-4K, PG-4L, TSU-7. Donated by Brad KB9BPF.

TM-733A / TM-733E Instruction Manual 13.8 MB PDF

TM-3530A Service Manual 10.6 MB PDF
Includes options MU-1, MB-10, TU-7, PG-2K, VS-1. Donated by Brad KB9BPF.

TM-D700A sales brochure 700 kB PDF
The TM-D700 is a dual-band mobile that has a built-in packet / APRS TNC.

MD700B software package 398 kB executable file

TM-D700A / TM-D700E APRS/Packet Instruction Manual 855 kB PDF

TM-D700A / TM-D700E Instruction Manual 2.7 MB PDF

TM-D710GA / TM-D710GE Instruction Manual 7.2 MB PDF

TM-D710A / TM-D710E Service Manual 5.1 MB PDF
Includes options MC-59, PG-5F, PG-5H, PG-5G, MCP-2A. Covers the panel section. Refer to the TM-V71A / TM-V71E Service Manual below for further information. Donated by Brad KB9BPF.

TM-G707A sales brochure 840 kB PDF
The TM-G707 is a basic twin-band mobile: one band at a time. For simultaneous receive see the TM-V7A.

TM-G707A / TM-G707E Instruction Manual 2.5 MB PDF
Also includes information on the VS-3 Speech Synthesizer option and the DF-3C, DF4C and DF-7C remote mount options.

The official kenwood programming software for the TMG-707, TM-V7, TM-V71, or RCP-570 can be downloaded from https://www.kenwood.com/usa/Support/Amateur_Radio. Chirp also supports these radios.

TM-G707A/E Service Manual 7.8 MB PDF

Some part numbers: The replacement fan for the TM-G707, TM-V7 and several others is the JVC/Kenwood 880W19-7088-92 "Fan Motor".
The TM-G707 / TM-V7 mobile mounting bracket is 881M96-7309-80. The TM-G707 / TM-V7 VHF RF Power Module is the Kenwood 880P34413. The UHF module is the 880P24455PU-91. The mobile microphone is the MC-53DM, part number 880W68-7253-72. A replacement microphone cable for the MC-53DM has two part numbers, 880H07-4298-82 or 881H07-0917-75.

TM-G710GA / TM-G710GE Instruction Manual 1.7 MB PDF

TM-V7A / TM-V7E Instruction Manual 2.6 MB PDF
Also includes information on the VS-3 Speech Synthesizer option and the DF-3C, DF4C and DF-7C remote mount options.

TM-V7A / TM-V7E Service Manual 7.1 MB PDF
Includes options DFK-3C/4C/7C.

A "usability" note from Dan Hopper KU4NF on the TM-V7A radio and the PC software they provide to upload and download the 180 memories: if you download the radio's memory, move some locations around and thus create some newly empty locations, and then write it back to the radio, it doesn't seem to delete the now-empty locations like it should; it merges the upload with the memory contents resulting in duplicate locations where the old entries are visible in the empty channels in the new data. My workaround is to delete all the memories in the radio before doing a write to the radio, thus giving the new data a clean slate to program into. How do you erase only the memories and none of the other settings? None of the power-up hotkeys seem to do this. However, if you have the radio change the VHF/UHF channel ratio, it'll prompt you to OK erasing all the memories. Do that, then change it back to your original ratio or a new ratio, and then write from the software to the radio. Kludgy, but it works.

TM-V71A / TM-V71E Instruction Manual 4.5 MB PDF

Kenwood's documentation on the PG-5H PC Interface Cable Kit and PG-5G Programming Interface Cable
Details on the programming (PG-5G) and audio (PG-5H) cables for the TM-V71 can be found here.

Programming software for the TM-V71 / TM-D710 / RC-D710 can be downloaded direct from Kenwood.
Memory Control Program MCP-2A Version 3.22

MCP-2A Version 3.10 filename: M2A310.exe; file size: 3.72 MB
See the next item for an alternative ZIP file.

MCP-2A Version 3.10 filename: M2A310.zip; file size: 2.95 MB
The executable file inside the ZIP is renamed to M2A310.EEE; you will have to rename it to M2A310.EXE before running it.

http://www.kenwood.com/i/products/info/amateur/tmv71_d710_main_update_e.html
This is a firmware update that increases the usability as a remote base or EchoLink radio.

TM-V71A / TM-V71E Service Manual 4.7 MB PDF
Includes options DF-3K, PG-5F, MC-59, PG-5G, PG-5H.

TM-V71A/E Modifications 5.2 MB PDF

TM-V71A Sales Brochure 2.4 MB PDF

TR-851A/E Service Manual 18.5 MB PDF
Includes options MU-1, VS-1, TU-7. Donated by Brad KB9BPF.

TR-7400A Service Manual 6.6 MB PDF

TR-7600 Operating Manual with schematic 2.0 MB PDF courtesy Jim MacDougald KB6ZOP

TS-140S / TS-680S Instruction Manual 1.2 MB PDF

TS-440S Instruction Manual 7.0 MB PDF

TS-600 Operating Manual 3.7 MB PDF

TS-700A Operating Manual 2.0 MB PDF

TS-700A / TS-700G Service Manual 33.1 MB PDF Smaller PDF file 15 MB PDF
Get the larger file if you have the download bandwidth. The files are larger than they would normally need to be as both files have a lot of background shading (i.e. the background is a varying shade of grey rather than white).

TS-850S Service Manual 29.3 MB PDF
Includes options DRU-2, PS-52, SP-31, VS-2, SO-2.

TU-79 Tone Board Manual 238 kB PDF
For the TR-7950/30 radios.

There's about 3.15 GB of additional Kenwood documentation that was sent to repeater-builder anonymously. It's stored at our sister-site that can be found here.

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Information provided from various sources as listed in the text.
Hand-coded HTML © Copyright 2004 and date of last edit by Mike Morris WA6ILQ.
You can contact Mike at (his-callsign) at repeater-builder dot com

This page originally posted on 14-Oct-2004
It was rearranged and split into more logical pieces 27-Dec-2017 by WA1MIK

This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.

Contact / Service / Parts Information: (This information may be out-of-date; check Kenwood's web page for current information.) Updates welcome!
	USA West Coast	USA East Coast	Canada
	Kenwood Communications Corp. 2201 East Dominguez Street PO Box 22745 Long Beach, CA 90801-5745 USA Customer support: 310-639-4200 Repair locations and parts: 800-KENWOOD (or) 800-536-9663 Fax: 310-537-8235 http://www.kenwood.com/usa/com/	Kenwood Corporate Offices 3975 Johns Creek Court Suite 300 Suwanee, GA 30024 Main: (678) 474-4700 Fax: (678) 474-4730 http://www.kenwood.com/usa/	Kenwood Electronics Canada Inc. 6070 Kestrel Road Mississauga, Ontario, Canada L5T1S8

	Kenwood Service Center West 13030 Alondra Blvd., Suite 104 Cerritos, CA 90703-2257 Repairs Only: (562) 483-874 Fax: (562) 483-8749	Kenwood Service Center East 829 Lynnhaven Pkwy., Suite 130 Virginia Beach, VA 23452 Repairs Only: (757) 340-1702 Fax: (757) 340-6809 CLOSED in 2019

	Pacific Coast Parts Orders: (800) 262-1312 www.pacparts.com	Kenwood Amateur Parts (Also known as East Coast Transistor) Orders: (800) 637-0388 www.kenwoodparts.com

Jump to:	General Information Modifications and Repairs Model-Specific Information Manuals and Brochures

Separate pages:	Kenwood 900 MHz Information Kenwood TKR Repeater Information

	A Programming Cable note: Kenwood uses a variety of programming cables for their commercial radios. The KPG-4 programming cable (click for photo, opens in a new browser tab) is a 6-pin modular connector (RJ-11 / RJ-12 / RJ14 style) used as the microphone / programming connector on older mobile radios – this connector is obsolete and not used on new Kenwood radios. The original KPG-4 cable had a female DB-25 on the computer end. The modern cable has a 9-pin "D" female connector to match todays computer COM port. Mosst of the older radios that use the KPG-4 tend to use MS-DOS based programming software and for those programs you will need a programming computer with a real serial port (a 9-pin male connector). Some of the more common older radios have had the programming software software updated and reissued with Windows (and USB) compatibility. Three of the ones I've run into are: KPG-47 v3.00 for the TKR-830, 740 and 840, KPG-49 v4.21 for the TK-280-380-480-481-780-880-980-981 and KPG-56 v4.22 for TK260G-TK-270G-TK-760G-TK868G. The page author has used the above KPG-47 and KPG-49 programs with 32-bit Windows 7. The KPG-8 has been superceeded by the KPG-22 programming cable and is described below. The KPG-8 cable required an external DC power source where the KPG-22 is powered from the computer COM port. Anyplace you see that a KPG-8 cable is specified you can substitute a KPG-22 cable. The KPG-8 is obsolete and no longer available as a new product from Kenwood. It is hard to find on the used market. If anyone can provide a photo and / or a schematic we'd appreciate it and we'll publish both here. The KPG-10 programming cable is for the TK-230 / TK-330 / TK-240 / TK340 radios (photo opens in a new browser tab). The computer end is a DB-25 female, the radio connector has 12 pins and is shipped with a clear plastic protective cap. This cable has a connector for a 9 volt battery. It is obsolete and no longer available as a new product from Kenwood and is hard to find on the used market. If anyone can provide a photo and / or a schematic we'd appreciate it and we'll publish both here. The KPG-22 / KPG-22A programming cable is usedon handhelds and has two connectors spaced about 11mm apart, one is an 1/8-inch (3.5mm) mini plug and the second is a 1/16" (2.5mm) sub-mini plug. The original Kenwood KPG-22 programming cable has a 25-pin female connector on the computer end, the KPG-22A used a 9-pin connector (opens in a new browser tab) Some people call the KPG-22 / 22A the "fang" cable because the two connectors look like the two fangs of a snake. Motorola used a similar "fang" cable with different spacing between the two plugs. For a long time the 6-pin KPG-4 and the KPG22 "fang" cable was all you needed for Kenwood radios so naturally the aftermarkent cable industry came up with a dual KPG-4 and KPG-22 programming cable. Why can't they come up with a triple cable (a KPG-4, KPG-22 and KPG-46) today? These days the most common version of the KPG-22 is the USB version (both photos open in a new browser tab) Note: A number of chinese manufacturers (including Baofeng, Quansheng and Woxun) use the KPG-22 programming cable. The KPG-36 programming cable is used on handhelds that have a 14-pin accessory (speaker/microphone/programming) connector on the side of the radio (both photos open in a new browser tab). The KPG-43 programming cable is a 2-conductor cable on a round 12 pin microphone connector. (photo opens in a new browser tab) One of the product lines that use it is the TK-690 / TK-790 / TK-890 series. The KPG-46 is a 3-wire programming cable used on the newer mobile radios - it has a 8-pin RJ-45 (Ethernet style) modular connector on the radio end. Note that Kenwood numbers the 8-pin mobile radio microphone jack pins backward from Ethernet. The original KPG-46 programming cable had a DB-25 on the computer end, the modern cable has a 9-pin "D" female connector to match the computer COM port. A number of aftermarket suppliers produce a USB version. photo of both KPG-46 programming cables (photo opens in a new browser tab) If you are very careful with the KPG-4 cable (6-pin radio end) you can use it to program a radio that normally would use a KPG-46 (8-pin radio end) cable. The three active pins are in the correct position and if you carefully center the 6-pin plug into the 8-pin connector on the radio (using the click tab) it will work - most of the time. It can (and will be) intermittent so don't count on it, especially if the tab breaks off in the field (and it will). Your page maintainer finally resolved the homebrew cable and KPG-4 versus KPG-46 issue by purchasing three cables from Mark Dunkle at www.bluemax49ers.com. (Off-site pointer - opens in a new browser tab): one dual KPG-4 and KPG-22 (9-pin female "D" connector), one KPG-46 (9-pin female "D" connector) and one of the USB FTDI KPG-46 cables. Those plus a KPG-36 handle almost all of his Kenwood field programming needs. Mark's FTDI based USB cables DO NOT need any funny drivers and they just plain work. You can buy through his web page and avoid the eBay or Amazon markup. No, he's NOT paying me for providing this pointer.
	You can build your own KPG-46 cable! by By Ephraim Gariguez DW1ZWS Off-site pointer, opens in a new browser tab.
	Another Programming Cable note: Thanks to Chris WB5ITT for this tidbit… Some Kenwood radios (the TK-780 and TK-880 are two) have a "gotcha"… the radio should be powered OFF when plugging in or unplugging the programming cable. The reason is that +8 volts DC is provided to the programming cable circuitry through a surface-mount resistor in the radio (pin 1 on the microphone jack). If that pin is accidentally shorted to ground the resistor is blown open and the programmer won't talk to the radio. The microphone will still work normally since it doesn't use that power… but the programming cable does.
	Another Programming Suggestion: Newer Kenwood radios have a digital mode called NXDN. Icom's version of NXDN is called IDAS. Other manufacturers have DMR. Amateur radios have D-star, Fusion, and more. Public safety systems have P25. Many common wattmeters cannot read digital transmissions accurately. If you are running a digital repeater (any format or protocol) I suggest that you always program a conventional channel in your repeater codeplug even if you are running digital as the normal mode… having that conventional frequency available with no more than a couple of button presses on the repeater front panel allows quick and easy accurate RF power tests.
	Some Thoughts on Radio Programming Computers and Laptops by Mike Morris WA6ILQ If you do a lot of radio programming you might want to consider dedicating a laptop to radio programming. This article describes what the author uses and why… He prefers the CF‑29-30-31 series Toughbooks because they are cheap, Mil-Spec rugged, configurable, repairable and have a 9-pin hardware COM port that always works. Note that the above article is an opinion piece… What works for him may or may not work for you…
	Kenwood Land Mobile Radio (commercial) Products by Mike Morris WA6ILQ A little background information and some model-specific information, and some contributions from others. Comments, Corrections and Updates are appreciated!
	From an email to repeater-builder: The following TK mobiles will all go down to 440 MHz: TK-805D TK-830 - see note below TK-840 TK-860 TK-860G TK-880 TK-8160 ... and probably more ... …as well as the following TKR repeaters: TKR-820 TKR-840 - see note below TKR-850 TKR-851 The TKR-840 does require a bit of a hack to get it down there, as the KPG-47D software won't let you enter anything below 450 MHz. The KPG-47D software also programs the TKR-830, so it's likely that the same code plug hack works on that model too. See this thread for info & the hex editing tool you'll probably need: https://forums.radioreference.com/threads/kenwood-tkr-840-uhf-repeater-need-help-programing-for-ham-frequencies.271724 Again this is for the TKR-840 but it MAY also work for the TKR-830. The comment thread says that patching the KPG was attemped but didn't work. If a working patch is developed please let the page maintainer know. He'll add it here.
	Note: Any KPG software with a "DN" suffix (i.e. KPG-91DN) will not allow programming wideband mode in a dual-mode radio. Unlike most Motorola software you can revert to a previous version (without the "N" suffix) and enable selection of wideband or narrowband.
	A list of Kenwood Radios, the software needed, and the programming cables needed by Mike Morris WA6ILQ The table shows which radios use MS-DOS based programming software, which ones have Windows based software, and more. The basic information on this page is from 2008 and updated as we were given information. Updates appreciated!
	Kenwood programming software names, versions, radios, and release dates Donated by Garrett Ramsey This information is from 2012 Updates appreciated!
	A newer list of software versions, radios, and release dates 70 kB PDF This PDF'd information is from 2018, and since PDFs can't be changed any updates will be added to the upper page. Updates appreciated!
	A list of updated software versions, products, and release dates 51 kB PDF by WA1MIK You should check all of these version lists as none contain every programming product. Updates appreciated!
	K9ROD maintains a list of Kenwood programming software versus radio here (opens in a new browser tab).
	How to decode Kenwood radio serial numbers 9 kB PDF Found on a now defunct web site, original author unknown.
	A library of 16 different microphone, speaker/microphone, accessory plug, etc. connector diagrams 207 kB PDF Author unknown. Someone found this on the web and sent it to us.
	The 6-pin Modular Kenwood Microphone Connector (photo opens in a new browser tab) This connector is used on the TK-705 / TK-805, the TK-740 / TK-840, the TK-760 / TK-860 and several other models. Someone found this on the web and sent it to us.
	A comparison of several Kenwood Mobile Microphones by John Haserick W1GPO and Roger Coulson WA1NVC FYI, amateur 8-pin Kenwood microphones are not wired the same as commercial 8-pin Kenwood microphones.
	Detailed table of the signals on the Kenwood TK-7180 / TK-8180 Microphone Jack by Mike Morris WA6ILQ Many other Kenwood commercial radios use the same microphone jack pinout. A customer needed a repair made to a specialty device that plugged into the microphone jack… Your page maintainer had to do some research… He created this from his workbench notes and posted it just in case it helps someone else.
	Some notes on the "Packet connector" on the Kenwood TM-G707, TM-V7 and similar amateur radios by Mike Morris WA6ILQ The TM-G707A, the TM-V7A and a couple of other models are programmed using the PG-4S cable which plugs into the front panel "packet" connector. You can make your own using info from the KA7O web site page on the PG-4S. (update: That link takes you to the Wayback machine saved page from November 6, 2017) Supposedly you can use an inexpensive KPG-4 (6 pin) or KPG-46 (8 pin) cable from eBay and cut off the radio end and add a 6-pin mini-DIN plug, or use the cable and plug from a dead PS/2 mouse), or make an adapter from a 6-pin or 8-pin jack and the plug end of a PS/2 style PC keyboard or PS/2 mouse extension cord.
	Homebrew programming interface equivalent to the KPG-4 35 kB PDF from K9MN The KPG-4 is the RS-232 to TTL cable that is used for programming most any commercial Kenwood radio that has a 6-pin (RJ-12) microphone jack. The KPG-46 is the 8-pin (RJ-45) version. There is enough info on the schematic to make your own.
	Another version of the above KPG-4 homebrew replacement by Craig Clark N5XNQ, forwarded by KC7GF (schematic file opens in a new browser tab) This schematic is similar to the above but with a lot more info - it shows both the DE-9 and DB-25 connections, the KPG-22 handheld connections and the the 6-pin KPG-4 microphone plug.
	A programming interface similar to the above KPG-4 units (schematic file opens in a new browser tab) This one corrects a few omissions in the above diagrams. Best of all, it actually works.
	Kenwood has a software download page for some of their amateur products at https://www.kenwood.com/i/products/info/amateur/software_download.html. (opens in a new browser tab)

	Replacement 2-Pin Radio DC Power Connectors Ths connector is used on both mobiles, and on repeaters (like the TKR-x50s and NXR-x10s). Your page maintainer had to replace the power connectors on a number of Kenwood mobiles… TK-840s, TK-8160s, TK-8180s, TK-8360s and more. A friend had already researched the original connector and was happy to share his information.
	Repairing the Toshiba S-AV17 RF power hybrid by Kevin Custer W3KKC This module is used in the TM-241 single band radio, the 2 meter module used in the TM-741, and in other radios.
	Converting the TK-6110 to 6-meters by John Haserick W1GPO and Roger Coulson WA1NVC
	Converting the TK-690H to 6-meters by Roger Coulson WA1NVC
	Adding Front-Panel Noise Blanker Control to a TK-690H by John Haserick W1GPO
	Make the KPG-59D Programming Software Cover 10-meters and 6-meters by Robert W. Meister WA1MIK This is the program that is used by the TK-6110 and TK-190 low-band radios. A few simple hex-edits are all it takes to expand the coverage into the ham bands. This same idea might also work for other bands and other KPG programming packages.
	Modify a TK-805 for Repeater or Link Use 357 kB PDF by Dwayne WD8OYG at LDG Electronics This is a generic modification writeup, not directed at any particular repeater controller.
	Modifying the TK-830 radios for Link Use - Getting COS (and CTCSS) by Scott Badders K9SLN
	Modifying the TK-860 TK-862 TK-760 TK-762 Radios for Link Use by Kyle Yoksh KØKN
	Adding a valid CTCSS / DCS logic output to the TK-x60 and TK-x62 mobile radios 9 kB PDF (author unknown)
	Adding a valid COS logic output to the TM-x31 mobile radios 172 kB PDF by Bill N6SGX and Kim KA1WCC A color version 120 kB PDF According to Joe K1IKE, the voltage at this point with the squelch fully open=0.025VDC; with the squelch fully closed=3.15VDC; with the squelch pot at the point that the audio mutes=1.05VDC. He used a Darlington transistor to cause switching at about 1.7VDC.

	900 MHz Information Manuals and more!
	TKR Repeater Information Manuals and more!
	Field programming the TK-270 or TK-370 Handhelds A writeup on front panel programming of these models. It's somewhat cryptic and since I don't have one of the radios to experiment with, I can't build on it. If anyone wants to add some detail (or some photos) feel free to, then email it to me (the page maintainer listed above).
	Kenwood Alternate Programming Procedure by Don Bindner He had troubles reading/writing his TK-730 radio directly, so here's an alternative method to get them programmed.
	A tip on the UHF TK-805 radio: BEFORE YOU BUY AN 805(D) CHECK THE VERSION NUMBER ON THE BACK. There are four different versions of the 805 and 805D and you need to look at the rear FCC ID# label. An FCC ID number ending with "-1" is for the 450-470 MHz band. A "-2" is for the 470-490 MHz band, a "-3" is for the 490-512 MHz band and a "-4" is for 406 to 430 MHz "government" band. The 450-470 MHz band TK-805D will work fine with no modifications in the ham bands, however you will need the "H" version to get 45 watts out of them. The stock non-H versions only put out around 30 watts.
	TK-840 Tuning Modes and Alignment Access 42 kB PDF provided by John Rowe
	TK-880 Information, including how to program it from the front panel. (offpage link to YO4HFU's TK-880 page at his web site)
	Useful TM-V7A / TM-G707A programming information direct from Kenwood.
	Some notes on the TR-7930 and TR-7950 by Mike Morris WA6ILQ Rock solid radios in their day. A couple of friends had these, and used them until just a few years ago; they had Com-Spec external TD-32 PL encoder boxes strapped to their radios.
	LED replacement bulbs for the TR-7930 and TR-7950 by Tony King W4ZT (SK)
	TR-8300 Information by Mike Morris WA6ILQ Includes some info on adding a CTCSS encoder to the TR-8300.
	The Kenwood TK-7180 (VHF) / TK-8180 (UHF) Page by Mike Morris WA6ILQ Information and articles on the VHF / UHF radio series.
	Making the TK-715K work on the 222 MHz Amateur Band 3 MB PDF by Alex KD6VPH

	900 MHz Information Manuals and more!
	TKR Repeater Information Manuals and more!
	KPT-20 Program/Test Set Instruction Manual 2.9 MB PDF
	KPT-40 Field Programmer Instruction Manual 4.3 MB PDF
	KPT-50 Field Programmer Instruction Manual 357 kB PDF
	KRA-21 Field Tunable Antenna Cutting Info for TK-190 Series Low-Band Portable Transceivers 1.3 MB PDF
	KRK-2 / KRK-3DH / KRK-4DB Remote Kit Service Manual 6.5 MB PDF donated by Brad KB9BPF These are used with the TK-630/730/830 series radios. They provide remote control head mounting, dual control heads, and dual band remote operation.
	KRK-7DB / KRK-8DBH Remote Kit Service Manual 715 kB PDF donated by Roger WA1NVC These are used with the TK-690/790/890 series radios. They provide remote control head mounting, dual control heads, and dual band remote operation.
	MC-46 DTMF and UP/DOWN Hand-held Microphone Schematic 50 kB PDF Probably usable on many mobile radios with the 6-pin round mike connector.
	PS-30 Operating Manual 190 kB PDF file courtesy of Greg Beat PS-30 Schematic (with repair notes) 904 kB (schematic file opens in a new browser tab)
	PS-50 Instruction Manual 600 kB PDF For the TS-440S and others.
	RC-10 Instruction Manual 2.5 MB PDF Remote controller for the TM-221A/221E/221ES and TM-421A/421E/421ES. Donated by Brad KB9BPF.
	RC-10 Service Manual 4.1 MB PDF Remote controller for the TM-221A/221E/221ES and TM-421A/421E/421ES. Donated by Brad KB9BPF.
	TH-D7A/E Service Manual 7.3 MB PDF This is a dual-band handheld that has a built-in Packet / APRS TNC.
	TH-D72A / TH-D72E Service Manual 16.6 MB PDF The TH-D7A / TH-D72E is a dual-band handheld with a built-in GPS receiver and packet / APRS TNC. Includes options BT-15 and PB-45L. Donated by Brad KB9BPF.
	TH-F6A / TH-F7E Service Manual 4.5 MB PDF Includes options BT-13, PB-42L, PG-2W, PG-3J, SMC-32, SMc-33, SMC-34, EMC-3, HMC-3, KHS-21. The F6A is a 144 MHz / 220 MHz / 440 MHz FM TRIBAND handheld, the F7E is the European 144 MHz / 430 MHz FM Dual Band handheld. The difference between the two radios is one diode. Click here to read about a critical design flaw with the TH-F6A and TH-F7E radios.
	TH-F6A / TH-F7E Service Manual Supplement 6.2 MB PDF
	TH-F6 / TH-F7 Schematic Diagram 2.3 MB PDF
	TH-G71A / TH-G71E Instruction Manual 2.6 MB PDF
	TH-K2AT / TK-K2E / TH-K2ET / TH-K4AT / TK-K4E Instruction Manual 1.3 MB PDF
	TH-41A/AT/E Service Manual 8.3 MB PDF Includes options BT-2, EB-2, PB-21, DC-21, SC-8/8T, HMC-1, SMC-30, TU-6. Donated by Brad KB9BPF.
	TH-41BT Service Manual 6.5 MB PDF donated by Brad KB9BPF
	TH-78A Instruction Manual 294 kB PDF
	TH-79A / TH-79E Instruction Manual 2.7 MB PDF
	TH-79 A/E Service Manual 2.7 MB PDF Includes options TSU-8, SC-41, SC-42, SC-43, BT-9.
	TH-315A Service Manual 10 MB PDF Includes options BC-7, BC-8, TSU-4. Donated by Brad KB9BPF.
	TK-190 Sales Brochure 1 MB PDF
	TK-190 Instruction Manual 190 kB PDF This series uses the same battery, speaker/mike, programming cable, etc as the TK-380 and TK-481. The antenna connector on the radio is an SMA male.
	TK-190 Service Manual Revised 4.0 MB PDF Includes options KNB-17A, KMC-25A, KSC-19, KSC-20, KPG-36, KBP-4.
	TK-240 Service Manual 14.1 MB PDF Includes options KDM-5, KHS-1, KMC-8A, KWR-1, KLF-3, KNB-4/5/6, KQT-9, KSC-6, KSC-8, KSC-76, KSC-86. Donated by Brad KB9BPF.
	TK-250 / TK-350 Instruction Manual 1.4 MB PDF
	TK-255 / TK-355 sales brochure 282 kB PDF
	TK-260 Service Manual 8 MB PDF Includes option KNB-14, KNB-15A. Donated by Brad KB9BPF.
	TK-260G/(N) / TK-270G/(N) Service Manual Revised 14.9 MB PDF Includes options KNB-14, KNB-15A, KMC-17, KMC-21. Donated by Brad KB9BPF.
	TK-270 / TK-278 Service Manual 4.4 MB PDF Includes options KNB-14, KNB-15A. Donated by Brad KB9BPF.
	TK-280 Service Manual Revised 13.8 MB PDF Includes options KNB-16A, KNB-17A, KPG-36, KSC-19, KRA-14, KMC-25. Donated by Brad KB9BPF.
	TK-290 Service Manual (1998 version) 856 kB PDF Includes options KNB-17A, KMC-25, KMC-26, KSC-19, KSC-20, KPG-36, KRA-14. Note: The TK-290 radio is only rated for up to 7.2vDC input! Do not use a mobile power cord directly from a 12v source without a voltage regulator in the cord.
	TK-290 Service Manual Revised (2001 version) 3 MB PDF
	TK-353 Instruction Manual 1.7 MB PDF donated by Brad KB9BPF
	TK-353 Service Manual 17 MB PDF Includes options KDM-7, KHS-1, KSC-76, KSC-8, KSC-86, KNB-11A, KNB-12A, KPG-22, KMC-17. Donated by Brad KB9BPF.
	TK-353/(N) Service Manual Supplement 10 MB PDF donated by Brad KB9BPF
	TK-360G / TK-370G Service Manual 12.5 MB PDF Includes options KNB-14, KNB-15A, KNC-17, KMC-21. Donated by Brad KB9BPF.
	TK-370 / TK-378 Service Manual 4.3 MB PDF Includes options KNB-14, KNB-15A. Donated by Brad KB9BPF.
	TK-380 Service Manual 24.4 MB PDF Includes options KNB-16A, KNB-17A, KPG-36, KSC-19, KRA-15, KMC-25. Donated by Brad KB9BPF.
	TK-380 Service Manual Revised 2.3 MB PDF Includes options KNB-16A, KNB-17A, KPG-36, KSC-19, KRA-15, KMC-25. Donated by Brad KB9BPF.
	TK-380 "E series" Service Manual 4.1 MB PDF
	TK-390 Service Manual 15 MB PDF Includes options KNB-17A, KMC-25, KSC-19, KSC-20, KPG-36, KRA-14. Donated by Brad KB9BPF.
	TK-630H(B) Service Manual Revised 21.2 MB PDF donated by Brad KB9BPF
	TK-690 / TK-790 / TK-890 Series Instruction Manual 530 kB PDF
	TK-690H(B) Service Manual (2001 version) 5.5 MB PDF donated by Skip Clark WB6TXX
	TK-705/B/N Service Manual Revised 10.6 MB PDF Includes option KQT-8. Donated by Brad KB9BPF.
	TK-705D / TK-805D Instruction Manual (1992 version) 350 kB PDF donated by James Lawrence
	TK-715/(N) Service Manual Revised IV (1997 version) 6.6 MB PDF Includes optios KMC-9, KPG-19. Donated by John Casullo N2QKV.
	TK-730/(B)/(D) Service Manual 20 MB PDF donated by Brad KB9BPF
	TK-730(G)/(GB) Service Manual 18 MB PDF donated by Brad KB9BPF
	TK-730H/(B) Service Manual 20 MB PDF donated by Brad KB9BPF
	TK-760 / TK-762/H Service Manual (1996 version, NO schematic) 1.5 MB PDF donated by Greg Beat W9GB
	TK-760G / TK-762G Service Manual Revised (2000-1 version) 6.2 MB PDF
	TK-760HG / TK-762HG Service Manual Supplement (2000-6 version) 4.2 MB PDF
	TK-760HG / TK-762HG Service Manual Revised (2000-10 version) 5.7 MB PDF
	TK-780 / TK-880 Series Instruction Manual 1.1 MB PDF Also appropriate for the TK-980 (800 MHz) and TK-981 (900 MHz) models.
	TK-780/H Service Manual Supplement 4.1 MB PDF donated by Brad KB9BPF
	TK-790/(B) / TK-790H(B) Service Manual Revised (2001 version) 6.3 MB PDF Note: This Service Manual applies to products with serial numbers 30300001 and higher. (KCH-10 and KCH-11 front panels are applicable to the productions June 2001 and after.) In terms of the products with the serial numbers earier than 30300001, refer to the TK-790/(B)/H(B) Service Manual as per part No. B51-8438-00 and the TK-790(B) Service Manual as per part No. B51-8456-00.
	TK-790H(B) Supplement (2005 version) 450 kB PDF Note: Applicable to units with serial numbers 60400001 and above.
	TK-830/(B)/(D) Service Manual (1992 version) 12.2 MB PDF
	TK-840 / TK-940 / TK-941 Instruction Manual 1.8 MB PDF
	TK-840/(N) Service Manual Revised (1996 version) 12.2 MB PDF Includes options KCT-19, KDD-4, KPG-25D. Donated by Brad KB9BPF.
	TK-860G / TK-862G Service Manual Revised 6.2 MB PDF
	TK-880 Service Manual Revised 7.5 MB PDF donated by Ray Miles K7LNA
	TK-880/H Service Manual Supplement 4.1 MB PDF
	TK-890/(B) / TK-890H(B) Service Manual Revised (2001 version) 6.3 MB PDF donated by Skip Clark WB6TXX
	TK-6110 Sales Brochure 406 kB PDF
	TK-6110 Instruction Manual 300 kB PDF
	TK-6110 Service Manual 2.6 MB PDF The 15-pin Accessory Connector pinout can be found on page 40 of this manual.
	TK-6110 Service Manual Supplement 4.7 MB PDF Supplement to the above service manual for serial numbers A8B00001 and higher.
	TKB-720 Service Manual Part 1 of 2 56.6 MB PDF Includes options KMC-9, KMS-5, KQT-7, KSK-2. Scanned by Harley KI7XF.
	TKB-720 Service Manual Part 2 of 2 58.1 MB PDF Includes options KMC-9, KMS-5, KQT-7, KSK-2. Scanned by Harley KI7XF.
	TKR Repeater Information Manuals and more!
	TM-211A/E Service Manual 10 MB PDF Includes option TU-3A. Donated by Brad KB9BPF.
	TM-221 / TM-321 / TM-421 A/E/ES Instruction Manual 2.3 MB PDF
	TM-241 / TM-441 / TM-541 A/E Instruction Manual 2.3 MB PDF (vertical - oriented towards reading on the screen) The same manual except horizontally oriented (for printing) 2.8 MB PDF
	TM-241A/E Service Manual 6.0 MB PDF Includes options DRU-1, DTU-2, MC-44, MC-44DM, MC-44DME, MC-44E, TSU-6, plus a note on extending the frequency ranges.
	TM-251A/E Service Manual 16.3 MB PDF Includes option PG-5A. Donated by Brad KB9BPF.
	TM-261A / TM-261EJ / TM-461A Instruction Manual 2.9 MB PDF
	TM-261A Service Manual 1.8 MB PDF
	TM-261A Schematics 676 kB PDF
	TM-271A / TM-271E Service Manual 1.8 MB PDF
	TM-281A Service Manual 17.3 MB PDF donated by Brad KB9BPF
	TM-321A Service Manual 3.9 MB PDF Includes option TSU-5. Donated by Brad KB9BPF.
	TM-331A Service Manual 9.4 MB PDF Includes options DRU-1, MC-44, MC-44DM, TSU-6. Donated by Brad KB9BPF.
	Dan N2AYM reports "I have repaired quite a few Kenwood TM-331 radios, replacing the memory batteries and RF Amp modules. The TM-231 / 331 / 241 / 441 / 541 models are of the same basic configuration inside and if you review the service manuals it is evident they are almost the same with the possible exception of the spectrum covered. They all use the same Lithium Memory backup battery. This part number has changed so the service manuals will have the old part number (W09-0326-05); the new number is W09-0599-05. When I called East Coast Transistor Parts their price was only $6.00 each which seems very reasonable. This battery is a CR2032s with solder tabs for installation in the control heads. When I replaced the RF Amp module (M57774), I found that there had never been any thermal compound between the amp mount and the heat sink, which may have been a production error and may have contributed to the amp's problem with excessive heat over a period of time. I naturally used thermal compound with the new one."
	TM-461A Service Manual 7.5 MB PDF donated by Brad KB9BPF
	TM-541A/E Service Manual 4.4 MB PDF Includes options DRU-1, DTU-1, MC-44E, MC-44DM, MC-44DME, MC-44, TSU-6. Donated by Brad KB9BPF.
	TM-621A Service Manual 13.3 MB PDF Includes option TSU-6. Donated by Brad KB9BPF.
	TM-631A Service Manual 13.6 MB PDF Includes option TSU-6. Donated by Brad KB9BPF.
	TM-641A / TM-741A / TM-741E Instruction Manual 6.6 MB PDF
	A tip on the 641 / 741 / 642 / 742 series from Rian AG4ME: If you have no audio output and the light dimmer does not work, look at resistor R121 and maybe transistor Q102 in the control head becoming un-soldered.
	TM-641A / TM-741A/E Service Manual 8.5 MB PDF Includes options DTU-2, TSU-7, MC-45, MC-45DM, PG-4K, PG-4L.
	TM-642A Service Manual 10.4 MB PDF Only has parts lists, schematics, color X-ray views. For circuit descriptions and semiconductor information, refer to the TM-742A/E, TM-942A service manual B51-8192-00.
	TM-642A / TM-742A/E, TM-942A Instruction Manual 3.7 MB PDF
	TM-742A/E / TM-942A Service Manual 10.7 MB PDF Includes options TSU-7, MC-45, MC-45DM, plus the UT-28S, UT-50S, UT-220S, UT440S, UT1200 band units.
	Some notes from Mike WA6ILQ on the TM-641 / 741 / 941 / 642 / 742 / 942 radios: 1) If you need CTCSS/PL decode you will need to plug in a TSU-7 board. The firmware already "knows" about it. 2) The remote mount kit is a DFK-3, DFK-4 or DFK-7 (3 meters, 4 meters or 9 meter long cable). 3) A replacement microphone is a MC-45 (plain) or MC-45DM (with 16-button DTMF). 4) The TM-641 / 741 / 941 / 642 / 742 / 942 radios can draw as much as 12 amps on transmit, and the DC wire pigtail hanging from the back of the radio and the matching power cord that was shipped with it was, in my opinion, undersized in AWG. The transmitter is sensitive to low DC voltage, a voltage drop of less than a volt can cost you 25% of the transmit output power. Start by measuring the voltage at the radio while transmitting ‑ the simple way is to temporarily push a couple of sewing pins through the insulation of the power cable right by the strain relief at the back of the radio, then clip your VOM to the sewing pins). While you are keydown compare the voltage at battery to the voltage at the radio. If the voltage drop is excessive while transmitting then you need to change the wiring to a larger AWG size (lower resistance) wire. Been there twice, done that twice, got the t-shirt (but not the coffee cup). I had close to a volt of loss between the battery and the the back of the radio. I replaced the short pigtail built into the back of the radio with the heaviest red / black zip cord I could find and changed to Anderson Power Poles instead of the stock "T" connector. At the time the biggest red / black zip cord available to me was 12 gauge, but since then I've seen 10 gauge on a spool at the local HRO store. Be careful, don't trust the outside diameter of the insulation to be indicative of the internal conductor size; look at the cross-section of the actual copper. 5) The TM-641 / 741 / 941 / 642 / 742 / 942 radios use a solder-tab-style CR2025 coin cell for memory backup. The coin cell seems to last forever if you keep 12v applied to the radio, or just a few years if it's in storage. If your radio needs a new battery I strongly suggest you replace the solder-tab coin cell with a socket. Here's an exploded drawing of how to get to it. There is barely enough space inside the radio for a coin cell socket - I had to file the edges of the plastic socket body down a little on each side to make it fit. The socket needs to be a vertical socket with top access (i.e. the cell is positioned at right angles to the circuit board). Here's a photo of the coin cell socket I used (thanks to Joe Orrico WB6HRO for the tip). (both image files open in a new browser tab)
	TM-701A/E Service Manual 12.1 MB PDF Includes options MC-44, MC-44DM, MC-44DME, MC-44E, TSU-6. Donated by Brad KB9BPF.
	TM-721A/E Service Manual 15.9 MB PDF The manual includes CTCSS decode option TSU-6.
	TM-731A/E Service Manual 15.5 MB PDF Includes option TSU-6 and some service bulletins. Donated by Brad KB9BPF.
	TM-732A/E Service Manual 5.8 MB PDF Includes options MC-45, MC-45DM, PG-4K, PG-4L, TSU-7. Donated by Brad KB9BPF.
	TM-733A / TM-733E Instruction Manual 13.8 MB PDF
	TM-3530A Service Manual 10.6 MB PDF Includes options MU-1, MB-10, TU-7, PG-2K, VS-1. Donated by Brad KB9BPF.
	TM-D700A sales brochure 700 kB PDF The TM-D700 is a dual-band mobile that has a built-in packet / APRS TNC.
	MD700B software package 398 kB executable file
	TM-D700A / TM-D700E APRS/Packet Instruction Manual 855 kB PDF
	TM-D700A / TM-D700E Instruction Manual 2.7 MB PDF
	TM-D710GA / TM-D710GE Instruction Manual 7.2 MB PDF
	TM-D710A / TM-D710E Service Manual 5.1 MB PDF Includes options MC-59, PG-5F, PG-5H, PG-5G, MCP-2A. Covers the panel section. Refer to the TM-V71A / TM-V71E Service Manual below for further information. Donated by Brad KB9BPF.
	TM-G707A sales brochure 840 kB PDF The TM-G707 is a basic twin-band mobile: one band at a time. For simultaneous receive see the TM-V7A.
	TM-G707A / TM-G707E Instruction Manual 2.5 MB PDF Also includes information on the VS-3 Speech Synthesizer option and the DF-3C, DF4C and DF-7C remote mount options.
	The official kenwood programming software for the TMG-707, TM-V7, TM-V71, or RCP-570 can be downloaded from https://www.kenwood.com/usa/Support/Amateur_Radio. Chirp also supports these radios.
	TM-G707A/E Service Manual 7.8 MB PDF
	Some part numbers: The replacement fan for the TM-G707, TM-V7 and several others is the JVC/Kenwood 880W19-7088-92 "Fan Motor". The TM-G707 / TM-V7 mobile mounting bracket is 881M96-7309-80. The TM-G707 / TM-V7 VHF RF Power Module is the Kenwood 880P34413. The UHF module is the 880P24455PU-91. The mobile microphone is the MC-53DM, part number 880W68-7253-72. A replacement microphone cable for the MC-53DM has two part numbers, 880H07-4298-82 or 881H07-0917-75.
	TM-G710GA / TM-G710GE Instruction Manual 1.7 MB PDF
	TM-V7A / TM-V7E Instruction Manual 2.6 MB PDF Also includes information on the VS-3 Speech Synthesizer option and the DF-3C, DF4C and DF-7C remote mount options.
	TM-V7A / TM-V7E Service Manual 7.1 MB PDF Includes options DFK-3C/4C/7C.
	A "usability" note from Dan Hopper KU4NF on the TM-V7A radio and the PC software they provide to upload and download the 180 memories: if you download the radio's memory, move some locations around and thus create some newly empty locations, and then write it back to the radio, it doesn't seem to delete the now-empty locations like it should; it merges the upload with the memory contents resulting in duplicate locations where the old entries are visible in the empty channels in the new data. My workaround is to delete all the memories in the radio before doing a write to the radio, thus giving the new data a clean slate to program into. How do you erase only the memories and none of the other settings? None of the power-up hotkeys seem to do this. However, if you have the radio change the VHF/UHF channel ratio, it'll prompt you to OK erasing all the memories. Do that, then change it back to your original ratio or a new ratio, and then write from the software to the radio. Kludgy, but it works.
	TM-V71A / TM-V71E Instruction Manual 4.5 MB PDF
	Kenwood's documentation on the PG-5H PC Interface Cable Kit and PG-5G Programming Interface Cable Details on the programming (PG-5G) and audio (PG-5H) cables for the TM-V71 can be found here.
	Programming software for the TM-V71 / TM-D710 / RC-D710 can be downloaded direct from Kenwood. Memory Control Program MCP-2A Version 3.22
	MCP-2A Version 3.10 filename: M2A310.exe; file size: 3.72 MB See the next item for an alternative ZIP file.
	MCP-2A Version 3.10 filename: M2A310.zip; file size: 2.95 MB The executable file inside the ZIP is renamed to M2A310.EEE; you will have to rename it to M2A310.EXE before running it.
	http://www.kenwood.com/i/products/info/amateur/tmv71_d710_main_update_e.html This is a firmware update that increases the usability as a remote base or EchoLink radio.
	TM-V71A / TM-V71E Service Manual 4.7 MB PDF Includes options DF-3K, PG-5F, MC-59, PG-5G, PG-5H.
	TM-V71A/E Modifications 5.2 MB PDF
	TM-V71A Sales Brochure 2.4 MB PDF
	TR-851A/E Service Manual 18.5 MB PDF Includes options MU-1, VS-1, TU-7. Donated by Brad KB9BPF.
	TR-7400A Service Manual 6.6 MB PDF
	TR-7600 Operating Manual with schematic 2.0 MB PDF courtesy Jim MacDougald KB6ZOP
	TS-140S / TS-680S Instruction Manual 1.2 MB PDF
	TS-440S Instruction Manual 7.0 MB PDF
	TS-600 Operating Manual 3.7 MB PDF
	TS-700A Operating Manual 2.0 MB PDF
	TS-700A / TS-700G Service Manual 33.1 MB PDF Smaller PDF file 15 MB PDF Get the larger file if you have the download bandwidth. The files are larger than they would normally need to be as both files have a lot of background shading (i.e. the background is a varying shade of grey rather than white).
	TS-850S Service Manual 29.3 MB PDF Includes options DRU-2, PS-52, SP-31, VS-2, SO-2.
	TU-79 Tone Board Manual 238 kB PDF For the TR-7950/30 radios.
	There's about 3.15 GB of additional Kenwood documentation that was sent to repeater-builder anonymously. It's stored at our sister-site that can be found here.