Hi all. I have a Cobra 19xs that I’m troubleshooting for a no squelch problem. ( squelch does not silent ). I have checked the circuit from the potentiometer up to the IC circuit amplifier according to the block diagram. I have not checked the IC yet. Is the block diagram accurate enough to cover all components. I checked the potentiometer, q107 and q106 and they are good. Am I correct in assuming the IC is bad since that’s the last thing before the speaker in the block diagram? Will the IC cause this problem? Thanks
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19xs no squelch
- Thread starter James6600
- Start date
first.Let me rephrase this question. I’m new at this as you can tell, this is my first radio when I was a teenager in the 80’s and my work radio for many years so I want to fix it. I know it’s not worth it. I have checked the resistors and transistor between the squelch and the I/C audio amp chip. All checked good and voltage was correct. So my first question is, if my voltage is correct at the I/C input from the squelch can I assume the two capacitors that run to ground in that part of the circuit are good/ or good enough not to cause the problem. I plan on recapping it once I find the problem. Thanks
