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No receive audio from antenna, Bitx40 #bitx40


 

Bitx40 no receive audio at all when attached to an antenna or on a dummy load.? I have a speaker and headphone jack wired.? Baofeng mic and ptt are on separate 3.5 mm jack. VFO changes frequencies, Power comes on and appears to work as expected.? I have a 10 turn pot and made the modifications for tuning range within the options field.? Is there a description of basic troubleshooting with a multi-meter to test what continuity or amps should be present at certain points on the board or another way to narrow down the problem?


KC9SGV
 

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Hi Lisa,
Here....

Bernie,
KC9SGV


On Feb 5, 2018, at 3:02 PM, Lisa.beasley42@... wrote:

Bitx40 no receive audio at all when attached to an antenna or on a dummy load.? I have a speaker and headphone jack wired.? Baofeng mic and ptt are on separate 3.5 mm jack. VFO changes frequencies, Power comes on and appears to work as expected.? I have a 10 turn pot and made the modifications for tuning range within the options field.? Is there a description of basic troubleshooting with a multi-meter to test what continuity or amps should be present at certain points on the board or another way to narrow down the problem?


 

After checking the voltage on Qx inputs, I discovered that the radio is in transmit mode.? It went to receive with sound when I pull the PTT connector wires.? The mic/ptt is wired wrong.? Time to review and perhaps start from scratch on that part.