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Stitches
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Username: Stitches

Post Number: 78
Registered: 2-2002
Posted on Friday, April 15, 2022 - 5:14 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

It's a China made 1994 Cobra 21 LTD Classic, there is no rx, no tx, no audio rx sound, no p.a. sound, it does light up when turned on. Tx light comes on during key up. The final and driver were replaced with new it uses the stock mic and it is good, the meter will move when the radio is jiggled. Also, touching the audio i.c. does nothing (no buzzing sound there). Would someone here have any idea on what needs to be done next? Thank you for your time.
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Ke0koy
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Username: Ke0koy

Post Number: 55
Registered: 12-2018
Posted on Sunday, April 17, 2022 - 12:14 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I would look at TR16 and TR17, and of the problem isn't there, I'd be testing the audio IC, and if the problem isn't there, I'd then be checking electrolytic capacitors.
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Stitches
Member
Username: Stitches

Post Number: 79
Registered: 2-2002
Posted on Monday, April 18, 2022 - 6:19 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thank you.

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