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Flow Chart of Troubleshooting
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9-15
9-8. Speaker Part
C526, C527 ≥ 0.5V ?
(When MP3 file is played)
Speaker does not work
U501 Pin 5, 8 ≥ 2V
(When MP3 file is played)
Resolder U501, R507, R508, C526, C527
END
No
Yes
No
Check UCP300
HDC700 Pin 4, 6 ≥ 2V?
(When MP3 file is played)
Resolder U500
Yes
No
Check the signals of
speaker input
Check the ConToCon
Yes
No signal
Is Speaker working?
No
OK
Change the Speaker
Yes
Yes