The radio transmits fine but will not receive at all. I have checked everything i know to look for but still this one has me baffled. Help!
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Strange Cobra 29 problem.
- Thread starter King Mudduck
- Start date
Have you tried another mic or jumpering pins 1&4 on the mic jack? How about an external speaker? Does the meter indicate that it is receiving a signal?
Yes yes and yes. That's what i'm saying it's weird that it's not receiving but it still shows full power and modulation.
pa switch ?? or speaker blown or disconected somehow ??
i know those are obvious. but sometimes over looked.
i know those are obvious. but sometimes over looked.
Im having the same problem with 2 cobra 29s and local shop is stumped, i am still working at it . #15 (Look in radio section)
It may be a problem in the tx/rx switching. I see a lot of this caused by poor/cold/cracked solder joints as well.
I have even put a new IC (audio chip) in this PC122 I have and nothing I was told to check the bigger caps in that general area of the chip. I added new Caps and still no sound if you figure yours out let me know what you come up with Ill do the same.
lords
Active Member
for those that care 
try looking for a Frequency General Purpose Amplifier..
Maybe TR17 it should come out as a 2SC1815(final audio output amp)
or start checking diodes ad caps by the audio IC and transformer
there are cheap cap checkers out there. (make sure you short the cap out first after you pull it)
did we have peeps keying up close to us ? and with linears on?
did yous mod the CB and use the RF gain knob..if so did you solder the RF gain wires together?
most radios don't have a receive problem ..unless you play with them
try looking for a Frequency General Purpose Amplifier..
Maybe TR17 it should come out as a 2SC1815(final audio output amp)
or start checking diodes ad caps by the audio IC and transformer
there are cheap cap checkers out there. (make sure you short the cap out first after you pull it)
did we have peeps keying up close to us ? and with linears on?
did yous mod the CB and use the RF gain knob..if so did you solder the RF gain wires together?
most radios don't have a receive problem ..unless you play with them
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