Operation CHARM: Car repair manuals for everyone.

Symptom Matrix Chart

Symptom Matrix Chart
The majority of the audio troubles are the result of outside causes (bad CD, electromagnetic interference, etc.). Check the inspection items below to diagnose the malfunction.




MALFUNCTION WITH RADIO AND CD
Before proceeding, confirm that other AV switch functions (except audio functions) operate. If not, refer to AV-150, "Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)". Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)




FOR RADIO ONLY

NOTE:
1. The following noise results from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other sources. It is not a malfunction.
- Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking the signal.
- Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the antenna at a different time from the waves which reflect off mountains or buildings.




FOR CD ONLY




FOR SATELLITE RADIO TUNER (FACTORY INSTALLED) ONLY

NOTE:
Pressing the SAT button, the display unit will display `NO SAT' when the following conditions exist:
- Loss of power to the satellite radio tuner (factory installed)
- Open or short in the REQ1, TXD, or RXD circuits.

If the satellite antenna is disconnected or inoperative, the display unit will display ANTENNA.