Symptom 2: Audio Distortion After Warm Up - Sony DVP-S300 Training Manual

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Third Generation DVD
The third generation DVD players consist of models DVP-S330, DVP-
S530, DVP-S550 and DVP-C650d.

Symptom 2: Audio Distortion after warm up

Cause: 1. Failure in A/V Decoder IC401; or
2. Failure in Audio DSP IC501
Repair Procedure
Often the audio distortion occurs after the unit gets warm, appearing in
both front L & R channels but less in both rear AC-3 channels.
1. To determine which IC is defective, freeze the heat sink above IC401
on the MB board when the problem appears. If the problem does not
go away, IC501 on the bottom of the board is defective.
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