148 gtl f no mic gain wide open

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techdude
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Posts: 1
Joined: Thursday 5th May 2011, 20:34
First Name: jim
Location: az

148 gtl f no mic gain wide open

Post by techdude »

Radio Make and Model: cobra 148 gtl f
PCB Number: ept
PLL Number: mb8719
Test gear available:
Symptoms: mic gain stuck wide open

What is working: all except for mic gain

What has been tried: all the obvious stuff

Did it suddenly happen ?: yes
Anything else that may be of help?:
the radio has the mic gain stuck wide open it does nothing changed pot changed audio amps checked resitors still same issue rodger beep has been removed nothing is shorted to ground. Please help
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