Samsung SGH-U900 Service Manual page 70

PAM_ON
F200
C206
4
1
UMTS_TX
IN OUT
G G G
2 3 5
R200
L204
VRF_2.85V
TR200
E2
3 C2
4
2 B1 B2
5
C200
C1 6
1 E1
L200
C201
13
1918 17 16 15 14
1 12
RFIN
2 VCC2
11
NC VCC2
3
10
VCC2
VMODE_EN
VMODE
4
RFOUT 9
VREG
PAM200
20
NC
RF3266
5 6 7 8
C209 C210
R202
R203 R204
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VBAT
R217
L201
C202
R215
C205
C204
4700NF
10NF
10V
16V
CPL200
1 IN 2
OUT
L205 COUP 50OHM
4 3
C211
R201
R214
PWR_DET
C212
10-28
Flow Chart of Troubleshooting
RTR_PWR_DET
L202
UMTS_ANT
R216
C203
2
ANT L206
C207
C268
TX RX
5 7
DUP200
1 3 4 6 8 9 C208
UMTS_RX