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Flow Chart of Troubleshooting
9-10
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9-1-6. Speaker Part
U302 E11
= 3.7V?
No
Yes
Resolder or replace U302
Is there any signal at
pin J7(EAR_P) &
J8(EAR_N)
?
No
Yes
No
END
Is Speaker working?
Change the Speaker
Yes
Yes
Is there any signal at
pin L11(SPK_P) &
H12(SPK_N)
?
Resolder or replace U302
No
Yes
Speaker does not work
Resolder or replace C323, C325
Summary of Contents for GT-C3510
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