Question about Cobra 29 LTD CB Radio

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Cobra 29 R46 keeps burning up changed c20 and r46 same problem ( cobra 29 GTL)

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Hi,

To my knowledge and depending on what board your Cobra 29GTL used, R46 is 47ohms dropping resistor after the switched 12V. Its output is then filtered by C20, 100uF/16V. While it is true that a shorted C20 would burnout R46, the issue is most likely a shorted FET2 (P/N 2SK104H). Should FET2 proved to be shorted, then it is very possible also that inductor/coil near FET2 is defective (LT-A108?).

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Sep 06, 2008

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