Operation CHARM: Car repair manuals for everyone.

Troubleshooting Hints

TROUBLESHOOTING HINTS

Try the following checks before doing the System Check.

1. Check the RADIO Fuse with a fuse tester.

2. Check the ARC Fuse with a fuse tester.

3. Check ground G200 by operating the Cigar Lighter.

4. Check that the Antenna connector and coaxial cable are properly connected.

5. Adjusting the Radio Receiver controls will change the operation of the sound system. Consult the Delco Sound Service Guide for information regarding the operation of these controls.

6. Before troubleshooting a suspect Speaker, check all connections to that Speaker.

7. For proper noise diagnosis, take the car outside where signals are strong. Close the hood, and keep away from metal buildings or sources of radio interference.

8. Ignition noise on FM may indicate a defective ignition System.

9. Coated screws or bolts can cause a poor ground condition. Scrape ground screw clean of any paint or varnish.

10. If Radio Receiver must be removed for repair:

^ Radio Receiver should be sent to an authorized AC-Delco repair station.

^ Go to System Check for a guide to normal operation.