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Radio System: Inspection

SYMPTOM CHART

Symptom Repair order
No power coming in. (No display and no sound from speakers)
  1. Check the fuse and power supply for radio.
  2. Check the radio ground.
  3. Remove the radio for repair.
A specific speaker does not operate.
  1. Check the speaker.
  2. Check the output circuit between radio and speaker.
Radio generates noise with engine running.
  1. Check the radio ground.
  2. Check the generator.
  3. Check the ignition coil.
  4. Remove the radio for repair.
Volume is low in AM and FM modes or interference noise occurs.
  1. Check the antenna.
  2. Check the antenna amplifier.
  3. Check the noise suppressor.
  4. Check the radio ground.
  5. Remove the radio for repair.
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