Samsung SGH-U100 Service Manual page 25

Flow Chart of Troubleshooting
MICINP
MICOUTP
C412
MICINN
MICOUTN
C416
VCCA_2.9V
R442
TA405
C434
MIC+
C438
MIC-
AOUTBP
AOUTBN
R444
MSPK+
MSPK-
R447
R450
C425
SPK_P
SPK_N
CSP_MICP
CSP_MICN
R445
YMU_EAR_R
YMU_EAR_L
C437
C439
R409
R410
C447 C448
R446
C411
R448
C415
TI_1.8V VAUDIO_2.8V
C426 C428
J6
RIGHT_LOP HPROUT
J7
RIGHT_LOM HPRCOM
J4
LEFT_LOP HPLOUT
J5
LEFT_LOM HPLCOM
J2
MONO_LOP
J3
MONO_LOM GPIO2
GPIO1
B2
MICDET
A2
MICBIAS DOUT
A1
MIC3R DIN
B3
MIC3L
U408
SELECT
A9
SDA
MFP3
A8
MFP2 SCL
B9
MFP1 /RESET
B8
MFP0 MCLK
WCLK
B4
LINE2RP BCLK
A3
LINE2RM
A4
LINE2LP NC
B5
LINE2LM NC
B7
LINE1RP NC
B6
LINE1RM
A6
LINE1LP
A5
LINE1LM
3-12
CSP_MICP
CSP_MICN
C429 C427
TA403
R489
G1
F1
D1
E1
R490
TA404
J8
CLK13M_TI
J9
F8
TI_SDIN
E9
TI_SDOUT
E8
D8
SDA
C8
SCL
H8
TI_RESET
G8
TI_MSCK
F9
TI_LRCK
G9
TI_BCK
1
2
A7
EAR_R
EAR_L