Samsung SGH-E340 - Page 47

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Flow Chart of Troubleshooting
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7-27
FRACTUS
GSM900 RX
DCS RX
PCS RX
TP100
J3
VCCTXVCO
J4
TXOUTD
J5
TXOUTG
J6
GNDTXVCOG2
J7
IOUT/IIN
J8
QOUT/QIN
J9
GNDMASH
TP103
H4
GNDTXVCOB
H5
GNDTXVCOG1
H6
VCCTXVCOG
H7
IOUTB/IINB
H8
QOUTB/QINB
H9
LE
J1
GNDLNA
J2
VCCOPLL
F9
SDATA
G1
GSM0LNAI GSM0GND
G2 G8
VCCMASH
G9
CLKOUT1
H1
GSM0LNAIB
H2
GNDOPLL
H3
GNDTXVCOD
D9
CLKOUT2
E1
GSM1LNAI
E2
GND
E8
GNDCLK
E9
VCCCLK
F1
GSM1LNAIB
F2
GSM1GSM0GND
F8
CLK
C1
DCSLNAI
C2
PCSDCSGND
C3
GND
C8
CLK2CONT
C9
GNDBUF2
D1
DCSLNAIB
D2
DCSGSM1GND
D8
DIVON
B2
PCSGND
B3
VCCMIX
B4
CAPIB
B5
CAPQB
B6
VCCRFVCO
B7
GNDRFSYN
B8
GNDBUF1
B9
TCXOIN
A3
VCCLNA
A4
CAPI
A5
CAPQ
A6
VCCRFLO
A7
VCCBB
A8
VCCRFSYN
A9
VCCBUF
B1
PCSLNAIB
U100
1
NC
2
NC
A1
PCSLNAI
A2
GND
R108
C134
100NF
4 6
VRAMP
C157
1
DCS/PCSIN
9
DCS/PCSOUT
10
GND
GND
5
GSMIN
7 8
GSMOUT
3
TXEN VBATT
U702
2
BAND
C154
R119
C148
R139
0 R111
R117
L104
R144
L103
C155
C170
C141
C122
+VDD_IO_HIGH
C150
C138 10NF
U705
R148
R107
TP102
C129
C156
R146
R123 0
C161
C121
R103
ANT101
C151
ANT100
R116
C165
+VCC_SYN
C153
C146
C162
R102
C115
L112
C144
C112
L118
C152
L121
R143
+VDD_RX_TX
R101
C101
C132
C158
C127 C128
C123
C164 C163
C168
F
C137
R113 100
CN101
2
A
C
3
G
1
G
4
C124
L125
4
VCC
VCON
1
C169
U102 TCO-5871U 26MHz
2
GND
OUT
3
C111 C114
R141
VDD_SLEEP
R135
C166
C149
+VCC_SYN
R106
L124
C125
6
PCS_RX2
10 VC1
VC212
9 VC3
C133
DCS_RX1
3 4
DCS_RX2
13
DCS|PCSTX
EGSMTX11
EGSM_RX1
1 2
EGSM_RX2
7
G
PCS_RX1
5
MODULE1
ANT
C143
C167
L101
L102 H
R110
C142
C135
C159
EGSM_RX_N
RX_TX_IP
RX_TX_I
N
RX_TX_QP
RX_TX_QN
TP101
VC1 VC2 VC3
PCS_RX_P
PCS_RX_N DCS_RX_P
DCS_RX_N
EGSM_RX_P
J_ANT
PCS_RX_N
PCS_RX_P
VBAT
DCS
RAMP
TXON
D_REF_CLK
D_REF_CLK DCS_RX_N DCS_RX_P
EGSM_RX_N
EGSM_RX_P
RF_CLK
26M_CLK
RF_DATA
RF_EN
AFC