Operation CHARM: Car repair manuals for everyone.

Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS:
1. Check RDO 1 and RDO 2 Fuses by visual inspection.
2. Before troubleshooting a suspect Speaker, check all connections to that Speaker.
3. 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.
4. Ignition noise on FM may indicate a defective Ignition System.
5. Coated screws or bolts can cause a poor ground connection. Scrape ground screws or bolts clean of any paint or varnish.
6. Adjusting Radio controls will change the operation of the sound system.
^ Refer to Instrument panel, Gages And Warning Indicator for Radio and Instrument Panel access. Instrument Panel, Gauges and Warning Indicators
^ Refer to Body And Frame for Door access. Body and Frame
^ Refer to the most recent issue of the Delco Sound Service Guide for information regarding the procedures for contacting Technical Assistance and for Technical Assistance phone numbers.