Only For Training And Service Purposes - LG GW620 Servise Manual
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Also See for GW620:
- User manual (408 pages) ,
- Quick reference manual (238 pages) ,
- User manual (202 pages)
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ANT5
ANTENNA_PAD
ANT4
ANTENNA_PAD
DCS_PCS_TX
GSM_TX
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
KMS-518
TP1
C379
C380
DNI
18n
ANT_SEL2
TP3
ANT_SEL3
R135
30ohms
5dB
R53
R54
180ohms
180ohms
R138
62ohms
9dB
R64
R63
100ohms
100ohms
TP2
Schematic of GSM/DCS/PCS Tx Block
.
SW2
G1
A
C
G2
L17
L19
0.5p
DNI
C315
1n
SKY77521
C317
1n
7
BS1
6
BS2
1
HB_RF_IN
3
LB_RF_IN
2
GND1
11
GND2
12
GND3
21
GND4
22
GND5
23
GND6
24
GND7
25
GND8
26
GND9
27
GND10
28
GND11
29
GND12
30
GND13
- 115 -
4. TROUBLE SHOOTING
17
ANT
8
_TXEN
9
MODE
10
RSVD
13
U20
RX4
14
RX3
15
RX2
16
RX1
18
WCDMA1
19
WCDMA2
20
WCDMA3
4
VAPC
5
VBATT
LGE Internal Use Only
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Table of Contents
Troubleshooting
