Question about Cobra 19 ULTRA II (40 Channels) 2-Way Radio

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I have a cobra cb and just re-hooked it up, after it had been sitting in my shed. Everything seems to be working except I'm not getting any sound, not even any squelch noise.Whats my problem???

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Make sure the mic is not broken and if it is stop useing it and get a diffrent mic

Posted on May 15, 2009

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Hi there!!

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Cobra classic 29 ltd


Had fixed the same problem yesterday. My cobra worked when it wanted to, when it didn't it looked like you explained. I found out that on my cobra the blue wire on the mike connector was broken. When it disconnects, no sound. after soldering, everything works fine.

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Open up the back of the radio and check the solder joint from the antenna connector. I had same problem and it was this.

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1 Answer

NO sound


Make sure the switch is in the CB position. If this is so, then you may have a bad switching transistor or a bad diode in the board. Also on some of the weather band cobras I have worked on in the past, I have found bad pll chips. Good Luck
Ed
NC Electronic
Mills, Wyoming

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