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Radio System: Inspection

SCHEMATIC CHART

Symptom Repair order
Display does not illuminate and no sound from speakers.
  1. Check fuse and power supply for radio.
  2. Check radio ground.
  3. Remove radio for repair.
No sound from specific speaker.
  1. Check speaker.
  2. Check output circuit between radio and speaker.
Radio generates noise with engine running.
  1. Check radio ground.
  2. Check generator.
  3. Check ignition coil.
  4. Remove radio for repair.
Weak signal or noisy sound when receiving AM and FM.
  1. Check antenna.
  2. Check antenna amplifier.
  3. Check radio ground.
  4. Remove radio for repair.
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