BE/Body Electrical Systems — Sound Quality Poor, page 94

BE-94
BODY ELECTRICAL SYSTEM – AUDIO SYSTEM

7  Radio  SOUND QUALITY POOR

W  : w/ Power Amplifier
WO : w/o Power Amplifier

Is sound quality always bad?
No
Is sound quality bad in certain area only?
Yes
Poor signals, poor location.
Yes
No

W
Is tape player operating normally?
Yes
WO
Radio assembly faulty.
No
Radio assembly or power amplifier faulty.

Is tape player operating normally?
Yes
Is power for the antenna being output from the radio assembly?
No
Radio assembly faulty.
No
Yes

WO
Go to No. 32
If radio side faulty
Radio assembly faulty.

W
Is power for the antenna being output from the power amplifier?
No
Power amplifier faulty.

Is speaker properly installed?
No
Install properly.
Yes

Temporarily install another speaker. Functions OK?
Yes
Speaker faulty.
No

WO  Radio assembly faulty.
W   Radio assembly or power amplifier faulty.  Recheck system after repair.