Car Radio Repair

Thread Starter

k5 blazer

Joined Dec 1, 2019

I have a old Sony CDX-M600 car radio that for some reason the radio just quit working. I can install a CD and the CD plays just fine. I temp wired in a replacement radio and the antenna in the vehicle works just fine. So my assumption is that it is in the AM/FM output or internal antenna circuit. I don't have any experience working inside of a radio and thought I would reach out here and see if I could find some knowledgeable individuals.

thank you in advanced


Joined Dec 29, 2008
A service manual is given here:
The schematic is on or about page 50.
... Not too much actual experience with this subject, but it seems like the best approach would be to obtain a signal injector device and start probing from the speaker back ...
Maybe the initial assessment would be to visually inspect for anything like bulging electrolytic capacitors, or any sign of burned or discolored components. ...