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Amateur and LMR Index Page

Compiled by Mike Morris WA6ILQ
Maintained by Robert Meister WA1MIK
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(This information may be out-of-date; check Kenwood's web page for current information.)
  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
Kenwood Corporate Offices
3975 Johns Creek Court Suite 300
Suwanee, GA 30024
Main: (678) 474-4700
Fax: (678) 474-4730
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

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

Note that the contents of this page, like most here at, are totally dependent on donations of information.
If you have a hint, or a useful trick, please consider wiring it up, writing it up and sending it in.

Kenwood seems to use the convention of model numbers starting with TK for Commercial two-way Land Mobile Radios (LMR), TKB for Commercial LMR Base Stations, TKR for Commercial LMR Repeaters, TM for Amateur Mobile radios, TH for Amateur Hand-held (portable) radios, and TS for Amateur Station radio equipment.

Kenwood 900 MHz Information has been moved to a separate page.

Kenwood Repeater Information (TKR) has been moved to a separate page.

Modifications and Repairs

Repairing the Toshiba S-AV17 RF power hybrid   by Kevin Custer W3KKC
This module is used in the TM-241, TM-741 2m module, and others.
Converting the TK-6110 to 6-meters   by John Haserick W1GPO and Roger Coulson WA1NVC
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 with a CAT-400   357 kB PDF by Dwayne WD8OYG at LDG Electronics
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

General Information

Kenwood Land Mobile Radio (commercial) Products   Background information, models, and other contributions.
A list of Kenwood Radios, the software needed, and the programming cables needed   by Mike Morris WA6ILQ
Kenwood programming software names, versions, radios, and release dates   Donated by Garrett Ramsey
A newer list of software versions, radios, and release dates   70 kB PDF
A library of 16 different microphone, speaker/microphone, accessory plug, etc. connector diagrams   207 kB PDF
The 6-pin Modular Microphone Connector
This connector is used on the TK-705 / TK-805, the TK-760 / TK-860 and several other models.
A comparison of several Kenwood Mobile Microphones   by John Haserick W1GPO and Roger Coulson WA1NVC
Some notes on the Packet connector   by Mike Morris WA6ILQ
The PG-4S programming cable is used to program a TM-V7A or a TM-G707A. You can make your own using info from the KA7O web site page on the PG-4S. Supposedly you can use an inexpensive KPG-4 (6 pin) or KPG-46 (8 pin) cable from eBay and change the plug (the plug and cable from a dead PS/2 mouse works just fine), or make an adapter from a 6-pin or 8-pin jack and the plug end of a PS/2 style PC keyboard or 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 or amateur Kenwood radio.
Another version of the above KPG-4 replacement   Courtesy of KC7GF
This diagram is similar to the above but with a lot more info - it shows the DB9 and DB25 connections, and the handheld connections.
Art Bross KC7GF used to have a TK-705 and TK-805 Radio page but the hosting company went away. He moved it to a Yahoogroup at The information available there covers programming from a PC as well as programming them from the front panel. BEFORE YOU BUY AN 805(D) CHECK THE VERSION NUMBER ON THE BACK. There are 4 different versions of the 805 and 805D and you need to look at the rear FCC ID# label. A -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-705D and 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 (retuning with a Service monitor makes them better). Art's group page also has links to other Kenwood-related sites.

Model-Specific Information

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 us.
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.
TK-840 Tuning Modes and Alignment Access   42 kB PDF provided by John Rowe
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 TK-7930 and TK-7950   by Tony King W4ZT (SK)
Adding a CTCSS encoder to the TR-8300   20 kB PDF by Communications Specialists.
More TR-8300 Information   by Mike Morris WA6ILQ

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.

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.
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
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 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, 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-730(G) / (GB) Service Manual   18 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-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.
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.
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
The TM-641/741 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 undersized. 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. Measure 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). If it does not remain above 13vDC you will have to check the voltage at the power source (i.e. at the vehicle battery). If that is fine then you will need to change the wiring to a larger size (lower resistance) wire. Been there twice, done that twice, got the t-shirt (but not the coffee cup). I replaced the short pigtail in the back of the radio with the heaviest red / black zip cord I could find and enlarged the hole in the back of the radio for a larger strain relief. The pigtail had a 15 amp mini-ATO type automotive fuse in it. I also replaced the cable from the battery to the pigtail. At the time the biggest wire available was #12, but since then I've seen #10 at HRO, and saw #8 in a catalog. Be careful, don't trust the insulation size to be indicative of the wire size; look at the copper cross-section.
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.
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-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
Includes 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-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
TM-G707A/E Service Manual   7.8 MB PDF
TM-V7A / TM-V7E Instruction Manual   5.1 MB PDF
TM-V7A/E Service Manual   2.7 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
Details on the programming (PG-5G) and audio (PG-5H) cables can be found here.
Free programming software can be downloaded direct from Kenwood.
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:; 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.
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.

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

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

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.