Hi All
I have a TKB-720 base VHF radio.
I have apparently killed the CPU.
It was working fine and I added a wire to bring the unfiltered audio
to the rear panel connector. I added the wire on the control board.
But it is murphy's day today.
This is the most serious of several things that have gone wrong today.
I accidently connected the audio line to the +12 volt line.
After the mod the radio appeared to work (because all the displays
were working) but I had no audio to the speaker.
I opened it back up and discovered my mistake but not before the
display quit working. It appears that the CPU has died. (no channel
selection, nor is radio on the default frequecy also no there is no
channel display.) I checked the power to the CPU it is still good.
The audio works fine now (unsquelched noise comes throught speaker)
The control board is a Kenwood number x54-3070-10.
Does anyone have a spare board or a spare CPU chip?
Thanks
Byron NJ7J
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