Samsung SGH-Z500 Anycall Service Manual page 59

16 15 14 13 12
17 VBATT
18 ENABLE
19 RSVD
20 VAPC
21 GND
1 2 3 4
R139
8.2K
C176
1.2PF
C168
UMTS_ANT
R102
VREG_RFRX_2.8V
R103
GSM_ANT_SEL2_N
R107
GSM_ANT_SEL0_N
R108
GSM_ANT_SEL1_N
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R113
U105 R115
11
GND 10
GND
9 R119 R120
GND 8
GND
7
5 6
TXVCO
C167
23
22
ANT
24
GND
25
VDD
26
C116
CTL-A
27
CTL-B
28
CTL-C
C118 29
NC
30 GND
31
NC
32 GND
1 2
C123
C129
7- 25
F low Chart of Troubleshooting
C149
U104
12 8
5
OUT1
VC 10
1
OUT2
14
G
SW1 SW2
2 4 3 6 71 9 1 13
R121 R122
R123 R124
C161 R125
R129 R130
21 20 19 18 17 16 15 14
13
TX1
U101
12
GND
11
TX2
34 5 6 7 8 91 0