Post by 3pinplug on Aug 25, 2022 0:46:50 GMT -5
Hi all
Just picked up one of these, nice looking radio and it transmits ok but is stuck on “”Channel 9””transmit frequency even if i key up on channel 40, same thing no matter what channel I select). Someone had fitted a little bit of perf board with what looked like just a relay on it and about 5 wires coming off it which i just desoldered.
Looking at the circuit diagram I can see that I have the 1.6v missing from IC205-IC202 that runs to the STop gate /Osc IC303, but i cannot find where this missing voltage should originate from, this may not be the fault its just something i have noticed thats missing.
Got all the infor from CB Tricks as they have the full service manual on there.
Basically hints that a mod is attempted then the channel 9 condition i have can occurr, so finding the perf board I know need to know how to get out of this lock issue.
Hoping someone mayhave already had this fault and can help.
thanks
Mark