home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
World of Ham Radio 1997
/
WOHR97_AmSoft_(1997-02-01).iso
/
mods
/
kenwood
/
asb_text
/
asb0956.txt
< prev
next >
Wrap
Text File
|
1997-02-01
|
2KB
|
59 lines
==============================================================================
K E N W O O D
>>> A M A T E U R R A D I O S E R V I C E B U L L E T I N <<<
==============================================================================
Kenwood Service Centers
Kenwood Service Corporation Kenwood Service Center, East
2201 East Dominguez Street 829 Lynnhaven Parkway, Suite 130
Long Beach, California 90801 Virginia Beach, Virginia 23452
Telephone 1-310-639-5300 Telephone 1-804-340-1702
==============================================================================
BULLETIN # 956
MODEL: TM-531A
SUBJECT: 20MHZ OFFSET MODIFICATION 01/09/90
The TM-531A offset can be changed from 12MHz to 20MHz by performing
the following modification. Once the modification is done, only 20MHz
can be selected. It is recommended that this modification be performed
at the dealer level since they have the correct tools to disassemble
the transceiver.
REQUIRED TOOLS:
SPANNER WRENCH PART# W05-T004 FOR MIC JACK NUT
11mm WRENCH PART# W05-T009 FOR ROTARY ENCODER NUT
1. Disconnect the power supply and antenna.
2. Remove the top and bottom covers (2 screws on each cover).
3. Pull the 3 knobs off the front panel.
4. Remove the nut from the microphone jack.
5. Remove the nut from the rotary encoder.
6. Remove the 4 screws from the front panel assembly
(1 on each side, 1 on the top, and 1 on the bottom).
7. Pull the front panel off the body of the transceiver.
8. Remove the 3 screws from the TX-RX board (X57-3340-11 B/2).
9. Pull the board off the body of the transceiver, but do not
disconnect the wire harness.
10. Locate D208 on the foil side of the TX-RX board (FIGURE 1).
11. Desolder and remove the diode.
12. Assemble the transceiver by reversing steps 1 - 9.
This is an optional change that is not covered under warranty.
Time required to perform this modification is 0.5 hrs.