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(3) Checking Ant SW & Mobile SW
Test Points
Circuit Diagram
ANT500
C500
1.2p
L510
3.3nH
L500
22nH
SW500
ENWY0002201
C508
22p
FL500
8
ANT
4
GND1
6
5
GND2
EGSM_TX
7
3
GND3
DCS_TX
9
GND4
12
GND5
13
10
GND6
EGSM_RX
14
1
GND7
DCS_RX
11 2
SHS-C090DR
L507
33nH
C531
10p
L508
33nH
C537
3.3p
FL500. 10
C531 (VC2)
ANT501
ANT502
C510
27p
ANT_SW2
GPO_11
ANT_SW1
GPO_9
- 59 -
4. TROUBLE SHOOTING
SW500. RF
FL500. 1
C537 (VC1)
Figure 4-10
Waveform
(VC1)
(VC2)
Graph 4-5(a)
(VC1)
(VC2)
Graph 4-5(b)
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