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Flow Chart of Troubleshooting
9-12
9-6. Speaker Part(Melody)
Speaker does not work
Yes
Is the terminal of speaker
OK?
No
Check the Speaker Wire
Check the
AMP_OUT_LM/LP/RM/RP
ok?
Yes
No
Resoler the Speaker wire
Change the Speaker
No
Change or Resolder Earjack FPCB
Is Speaker OK ?
Yes
Yes
R631(Sub), R632(Sub) is
'H' ?
Is the R112(Sub) 'H' and
CODEC OUT
LM/LP/RM/RP ok?
Check the output circuit
of U101(Sub), U105(Sub)
Check the Earjack FPCB
ok?
Yes
No
Check the Slide FPCB
Yes
Change or Resolder U603(Sub)
END
No
Yes
No
Change or Resolder U101(Sub),
U105(Sub)
Yes
No