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4. TROUBLE SHOOTING
4.5.4 Checking RF Rx Level
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
850GSM
EGSM
PCS
DCS
6.8nH
L103
6.8nH
L108
NA
L110
L198
L197
47nH
27nH
L199
27nH
C719
22nH
L111
NA
18nH
L104
L109
NA
6.8nH
L106
NA
C718
15
5
GSM1800_RX1
GSM1800_RX2
6
7
GSM1900_RX1
GSM1900_RX2
8
17
GSM850_900_TX
1
GSM850_RX1
GSM850_RX2
2
3
GSM900_RX1
GSM900_RX2
4
NC1
23
NC2
24
VC1
19
20
VC2
VDD
21
ANT
11
9
GND1
10
GND2
GND3
12
13
GND4
14
GND5
16
GND6
GND7
18
GND8
22
GSM1800_1900_TX
FL100
LMSP43QA-538
12nH
L107
L105
6.8nH
Schematic of GSM-900, DCS-1800, PCS-1900 Rx Block
TP1
TP2
TP3
Test Point of Rx Block
TP1
TP2
TP3
Содержание KE990 - Viewty Cell Phone 100 MB
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