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Flow Chart of Troubleshooting
9-14
9-6. Speaker Part(Melody)
Speaker does not work
Is the terminal of speaker
OK?
Check the AMP_N/P ok?
Yes
Resolder the Speaker wire
No
Change the Speaker
No
Change or Resolder Earjack FPCB
Is Speaker OK ?
Yes
Yes
C600,C601,C602,C603,
is 'H' ?
Is the CODECOUT_M and
CODECOUT_P ok?
Check the output circuit
of U501
Check the Earjack FPCB
ok?
Yes
No
Check the C512,C514,R505,R508
= 'H'
Yes
Change or Resolder U404
END
No
Yes
No
Change or Resolder U501
Check the Speaker Wire
No
No
Yes
Summary of Contents for SGH-F490
Page 79: ...8 PCB Diagrams 8 1 1 Main top ...
Page 80: ...PCB Diagrams 8 2 2 Main bottom ...
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