Table of Contents
Advertisement
4．检查 Ant SW 与 Mobile SW
检测点
电路图
ANT103
ANT101
ANT102
R123
R102
R101
0
0
C101
8.2nH
DBB2RF_SWITCH4
DBB2RF_SWITCH3
DBB2RF_SWITCH2
DBB2RF_SWITCH1
DBB2RF_SWITCH_PWR
5.6p
L105
NA
SW101
KMS-518
R119
0
R120
0
R121
0
R122
0
FB101
BLM15AB601SN1
L107
2
3
22nH
C106
C104
C105
56p
56p
56p
2
VC4
3
VC3
4
VC2
5
VC1
6
VDD
TX1_GSM850_900
TX2_DCS_PCS
FL102
LMSP2PQK-772
C155
22p
C156
22p
C157
39p
- 75 -
4. 故障解决
RF_TD_RX
FL101
LFL152G01TC1A271
4
RF_TD_TX
OUT
IN
1
GND2
GND1
12
C111
100p
11
C113
100p
Advertisement
Table of Contents
