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IC-735 Help needed

magking1971

Member
Oct 26, 2012
5
0
11
I have an IC-735 that will not stop transmitting when I unkey the mike, Anyone know where I can start looking to fix this problem?
 

Getting SM should be first step.
You can download it from many places.

Is it happening in all modes, high/low power, antenna/dummy load?
Mike
 
Service Manual.

What about you unplug mic and use XMIT button?
Is it also happening in CW when you press CW key?
Also check PS voltage. Best is to measure on pin 7 ACC socket.
Votage drop is common problem with PLL lockups in those radios.
Mike
 
Only way to stop it is to unplug the mike, bad mike?
I do have a D104 laying around, anyone know how to wire it to the 8 pin Icom?
It has red, white, black and bare/shield wire.
 

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