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Radio Make and Model: colt 510
PCB Number: ?
PLL Number: ?
Test gear available: muiltimeter, soldering iron, hammer, another cb but its standard uk fm??
Symptoms: no sound or pa

What is working: power and controls

What has been tried: tried 2 different mics and also tried a pa speaker and external speaker still nothing, checked wiring to speaker and mic oh and sq is not turned to full.

Did it suddenly happen ?: no never had it working
Anything else that may be of help?: i know this is am/fm 120 channels on each (sorry if its a noob question) but will this work on standard uk fm?

could this be a faulty transistor or something? all help will be greatly appreciated

i found the answer to my own question, its the audio amp, just noticed at the back it has a crack in it, now my question, is there any difference between the TA7205P D chip and the TA7205AP C chip??

Just fit it Jon, it'll work fine.
You could tune the crystal for high band to get down to the UK band but you won't get all the channels.
Channel 33 will be 19 UK up to 40 for channel 26 UK.
Dave.