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KENWOOD TM-231
EXPNDED RF
1 DISCONNECT THE POWER AND ANTENNA.
2 REMOVE THE TOP AND THE BOTTOM COVER.
3 REMOVE ALL KNOBS FROM THE FRONT PANEL.
4 REMOVE THE NUT FROM THE MIC JACK AND THE NUT FROM THE CHANNEL SWITCH.
5 REMOVE FOUR SCREWS HOLDING THE FRONT PANEL.
6 REMOVE THE TREE SCREWS FROM THE CONTROL BOARD.
7 LOCATE THE GREEN JUMPER WIRE STICKING OUT THE FRONT PANEL, BEHIND
THE VFO BUTTON
8 CUT THE GREEN WIRE AND TAPE THE EDGES TO PREVENT THEM FROM SHORTING.
9 INSTALL DIODE D209 ON CONTROL BOARD part # 1N914. The control board
X57-3310-11.
10 REASSEMBLE THE RADIO.
11 RESET THE MICROPROCESSOR (Press and hold [MR] while turn the power ON).
ALIGNMENT CONTROLS: VR-2 AUDIO DEVIATION
~~~~~~~~~~~~~~~~~~~ VR-3 TX HI power
VR-4 TX MID power
VR-5 S-Meter
TC-3 FREQ. ADJ.