Thread: RS Pro-83 White noise problem
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Old March 19th 06, 04:30 AM posted to rec.radio.scanner
Al Klein
 
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Default RS Pro-83 White noise problem
On 18 Mar 2006 19:51:02 GMT, (Scott Ehrlich) wrote:

Is there any other reasonable way to get around it?

You mean without the schematic? Experience and luck.

Start at the squelch control. Measure the top (clockwise end) with
signal and with no signal. You should have either an increase in
noise or an increase in DC with no signal. Follow the signal and see
if it gets to the audio stages as a DC voltage. See if that voltage,
when there's no signal, cuts off an audio stage. Somewhere along the
line, you won't see what you expect. Open resistor? Shorted
capacitor?
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