Table of Contents
Advertisement
4. TROUBLE SHOOTING
(3) Checking Ant SW & Mobile SW
Test Points
Circuit Diagram
ANT500
C501
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
C532
10p
L508
33nH
C534
3.3p
SW500. RF
SW500
C532(VC2) C534(VC1)
Figure 4-5
ANT501
ANT502
C513
NA
C517
NA
C524
EFCH942MTCA7
27p
EFCH1842TCA7
ANT_SW2
GPO_11
ANT_SW1
GPO_9
- 56 -
FL500
FL500. 1
FL500. 10
Waveform
FL301. 10
VC1
VC1
VC1
VC2
VC2
VC2
ANT SW Control GSM& DCS RX Mode
Graph 4-3
ANT_SW1
GSM_TX
H
DCS_TX
L
RX
L
Table 4-2
Low
Low
Low
Low
Low
Low
ANT_SW2
L
H
L
Advertisement
Table of Contents
