Samsung SGH-Z650i Service Manual page 55

Flow Chart of Troubleshooting
V_IN
TA301
C309
YMU_L
C310
AMP_EN
R309
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C313
B1 A2
VDD VSS
VOM A3
R305
A1
PVSS
U304
VIP
C1 VOP C3
VIM
R306
1 2
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B3
R332 R333
9-12
R330
C323
L300
C311
C312
L301
C324
R331
RCV-
SPK-
SPK+
RCV+