Samsung GT-S3370 Service Manual page 58

Flow Chart of Troubleshooting
F200
C201
R200
L215
1 4
UMTS900_TX
OUT
IN
G G G
2 3 5 L203
C236
UMTS_PA_RANGE1
UMTS_PA_RANGE0
UMTS900_PA_EN
C210 C208 C209
C448
C430
C421
C422
C429
L404
C410
L402
C443
VR300 C446
L213
R306 C405 C406
C308
OSC400
C415 C437
L212
C438
C436
L400
C432
TCX200 C207
DUF200
C213
C203
C215 R205 R204 C214
L70 2 L703
L117
C115
UMTS900 PAM
VBAT
PAM200
1 10
VCC1 VCC2
C204
2 9
RFIN RFOUT
3 8
VBP ISO PWR_DET_2100
4 7 C205
VMODE GND
C206
5 6
VEN CPL
R201
PWR_DET
C212
C211
R202 R203
RTR6285: POWER DETECTER : -11~2dBm
C407
C212 C211
L203
L215
PAM200
R407
C416
R203
C441
C230
C201
C221
C236
L220
R209
PAM201
R208
L110 L107 L104
C123 C119 C117 R210 C226
C127
C238
L113
L219
FEM100
R107 C126
L217
L201
C124
C107
L112
C125
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C235
L217
U900_RTX_G900_RX_ANT
L201
DUF200
C203
1
RX U900_G900_RXP
3
TX
8
RX
L204 L205
L206
C207
U900_G900_RXM
ANT
GSM RX
GSM TX
DCS 1800 RX
DCS 1800 TX
PCS 1900 RX
PCS 1900 TX
WCDMA 2100 RX
WCDMA 2100 TX
WCDMA 900 RX
WCDMA 900 TX
POWER
D400
TP_PS_HOLD
C204
C130
C131
R201
L221
R110 R109
R207
C132
C139
C138
C134
L119 C144
C137
C145
L116
9-30