TSRM/MK4 Supra/Repair Manual
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BE/Body Electrical Systems — Cd Player Sound Jumps / Cd Player Sound Quality Poor (Volume Faint), page 104

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p.105
Cd Player Sound Jumps / Cd Player Sound Quality Poor (Volume Faint) — MK4 Supra Body Electrical Systems, page 104
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Page text (OCR transcript)
BE–104
BODY ELECTRICAL SYSTEM – AUDIO SYSTEM

21 CD Player SOUND JUMPS

Does sound jump only during
strong vibration?
Yes → Jumping caused by vibration.
No
Is CD player properly installed?
No → Install properly.
Yes
Functions OK if different CD
installed?
Yes → CD faulty.
No
Has sudden temperature change
occurred inside cabin?
Yes → Formation of condensation due to temp. change.
No
CD player faulty.

22 CD Player SOUND QUALITY POOR (VOLUME FAINT)

Functions OK if different CD
installed?
Yes → CD faulty.
No
Is radio operating normally?
Yes → CD player faulty.
No
Is speaker properly installed?
No → Install properly.
Yes
Temporarily install another speaker.
Functions OK?
Yes → Speaker faulty.
No
Radio assembly or CD player or power amplifier faulty.