
Flow Chart of Troubleshooting
9-
12
9-1-6. Speaker Part
Speaker does not work
Is the terminal of
Speaker OK?
NO
Resolder the board
to speaker
YES
①
Check the
pin 1of U105 = "HIGH"
Change or resolder
U105
NO
YES
②
Check the circuit
around U105
Change or resolder
C116,C165,C167,C168,
C178,C179,C180,C181,
C182,C183
R105,R108,R110,R111,
R142,R143,R144,R145,
R147,R148
NO
YES
③
Check the Pin#4, #8
of U202 = "LOW or
HIGH"
Check
U202
NO
YES
④
Check the Pin #1
of U202 = "2.9V"
Check
C213 or C214
NO
YES
YES
END
Change speaker
NO
Is speaker OK?
Summary of Contents for SGH-X810
Page 54: ...PCB Diagrams 8 4 ...
Page 56: ...Flow Chart of Troubleshooting 9 2 ...
Page 67: ...Flow Chart of Troubleshooting 9 13 ...
Page 76: ...Flow Chart of Troubleshooting 9 22 ...
Page 80: ...Flow Chart of Troubleshooting 9 26 ...