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I bought a Cobra 139xlr on ebay. It had a problem with AM receive but SSB worked fine. I completely recapped the radio. I adjusted TP 7 to 2v. When on AM, when you unkey the mic the voltage on TP 7 gets stuck on 4.65 volts. If you change the selector to SSB and back to AM it will return to 2V and receive works. You have to be on ch24 or lower when you switch to SSB and back. SSB works perfect! I can see the voltage on TP7 change soon as you key up the mic. Any ideas?

[QUOTE="Gene Newcomb, post: 797275, member: 61794"] I bought a Cobra 139xlr on ebay. It had a problem with AM receive but SSB worked fine. I completely recapped the radio. I adjusted TP 7 to 2v. When on AM, when you unkey the mic the voltage on TP 7 gets stuck on 4.65 volts. If you change the selector to SSB and back to AM it will return to 2V and receive works. You have to be on ch24 or lower when you switch to SSB and back. SSB works perfect! I can see the voltage on TP7 change soon as you key up the mic. Any ideas? [/QUOTE]

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