Receiver · Sony · TC-KA3ES

Diagnosis: Weak or Distorted Audio

Audio is present but weak, fuzzy, harsh, or distorted.

Safe first checks

  1. Reduce the volume immediately if distortion is severe.
  2. Test a different source and a different pair of speakers if available.
  3. Confirm that Tape Monitor, loudness, filters, and speaker switches are set as intended.
  4. Do not continue operating the unit if it becomes hot, smells burnt, or repeatedly enters protection.

Next step

Note whether distortion begins at low volume, affects both channels, and changes when a control is moved.