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Problem Symptoms Table

Check the circuits for each problem symptom in the order given in the table below. Proceed to the relevant troubleshooting procedure.

PROBLEM SYMPTOMS TABLE - AUDIO

Symptom Suspect Area
Pressing power switch does not start system.
  1. Radio receiver assy power source circuit
  2. Radio receiver assy
Turning on light switch does not come on night time illumination of radio receiver.
  1. Radio receiver assy illumination circuit
  2. Radio receiver assy
No sound is heard from speaker in all modes.
  1. Speaker circuit
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
Sound quality is bad in all modes. (Volume is too low)
  1. Speaker circuit
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
Radio broadcast cannot be received. (Bad reception)
  1. Antenna circuit
  2. Radio receiver assy
Cassette tape cannot be inserted or played.
  1. Cassette tape
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
Cassette tape cannot be ejected.
  1. Cassette tape
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
Sound quality is bad only when playing tape.
  1. Cassette tape
  2. Radio receiver assy
Tape is tangled due to incorrect tape speed or auto-reverse malfunction.
  1. Cassette tape
  2. Radio receiver assy
CD cannot be inserted or is ejected right after insertion.
  1. CD
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
Although system is powered, CD cannot be played.
  1. CD
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
CD cannot be taken out.
  1. CD
  2. Radio receiver assy power source circuit
  3. Radio receiver assy
Sound quality is bad only when CD is played.(Volume is too low)
  1. CD
CD sound skips.
  1. CD
  2. Radio installation
Noise occurs. -
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