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View Full Version : Need correct schematic for a Cobra 25LTD



Burnout
06-21-2020, 08:20 PM
I am a newbie to the CB world. Apparently there are several variations for this model. I have a no receive problem and have traced receive audio up to output of 2nd crystal filter but it will not pass through a transistor designated as Q2 on the circuit board. I need the correct schematic to troubleshoot further. Any help getting the correct schematic or familiar with the same problem will be appreciated.
Burnout

Burnout
07-18-2020, 01:12 PM
Never found exact schematic but managed to fumble my way through using schematics that had similar circuits. Replacing 455 crystal filter fixed the no receive problem. The part was $30 plus shipping. Cant see a tech being able to fix these things for a living. Are there any parts suppliers that I should know about that give the techs some discount?

JesseJamesDallas
07-20-2020, 07:36 AM
Never found exact schematic but managed to fumble my way through using schematics that had similar circuits. Replacing 455 crystal filter fixed the no receive problem. The part was $30 plus shipping. Cant see a tech being able to fix these things for a living. Are there any parts suppliers that I should know about that give the techs some discount?
RFParts.com?

https://www.rfparts.com/ (https://www.rfparts.com/)