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4. TROUBLE SHOOTING
(3) Checking Mobile SW & FEM
TEST POINT
SW501.RF
SW501.ANT
CIRCUIT
R516
(GPO_11)
ANT_SW2
0
C524
270p
R517
(GPO_9)
ANT_SW1
0
C528
270p
Figure 4-10.
VC_DCSPCS
C522
SW501
Figure 4-9.
TP501
TP502
TP503
C516
22p
GND13
PCS_RX2
24
15
GND12
PCS_RX1
23
14
GND11
DCS_RX2
22
13
GND10
DCS_RX1
21
12
GND9
EGSM_RX2
20
11
GND8
EGSM_RX1
19
10
GND7
18
GND6
17
GND5
16
GND4
7
GND3
DCSPCS_TX
6
5
GND2
EGSM_TX
4
8
GND1
2
HWXQ511
FL501
- 80 -
FL501
WAVEFORM
Graph 4-3. GSM Tx mode
Graph 4-4. DCS,PCS Tx mode
VC_EGSM
C528
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