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Record Details

Make Cobra
Model 29
Chassis All
Symptom Radio will not TX or RX but TX/RX light changes. Final and driver and all other components in TX section test fine.
Cure Check D19 for 5 volts and check the junction of R124, D19 and R98 for 5 volts. If 5 volts is not present on D19 check D19 and replace if needed. If D19 checks out ok then check R124 and R98. If both check out to be fine then desolder pins 7 and 11 from PLL and see if voltage returns to D19/R124/R98 junction. If voltage returns after desoldering pins 7 and 11 replace PLL.
Additional Comments  
Category Both RX/TX
Posted By Jay

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