LG GD510 Service Manual page 109

8. CIRCUIT DIAGRAM
16 15 14
RF
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LGE Internal Use Only
16 15 14
LGE Internal Use Only
13 12 11 10
ANT602
ANT601
ANTENNA_PAD
ANTENNA_PAD C635
39p 100n
C643 DNI
SW601 GRS302-2S-H22-E3000
C656 C625
C608 22p
G2
ANT RF
G1
0 0
C697
0.5p L608
100n
VRF_1V5 VRF_2V85 VRF_2V85
GSM850
C618 C634
3p 3p
C624 C605
100n 4.7n L603
18n
FE2
33
VBIAS
34
VDDTX1V5
35
LBAND_PAM_IN
TX1
36
HBAND_PAM_IN TX2
37
VDDTX2V8
R605 10
38
VDDMIX2V8
C622 C604 39
GND3
100n 100n 40
GND4
41
VRF_1V5 VRF_2V85
R601 10
C607 C648
220n 100n
13 12 11 10
9 8 7 6
VRF_2V85
FE1
FE2
C613 C632
C636 100p 100p
GSM850_EGSM TX
DCS_PCS TX
GSM850_EGSM RX
DCS_PCS RX
ANT
17
L609
1.8n
C651
C610
1p
DNI
L605
3.9n
GSM900 DCS1800 PCS1900
C612 C611 C620
C629 C609 C617 C616 C603 C614 C615
3.9p 3.9p 2.2p 2.2p 2.4p 2.4p 1p 1.5p 10n 10n
L606
L601 L602
15n 5.1n
4.7n
VRF_1V5 VRF_2V85 VRF_2V85
C628 C650 C649 C623
100n 100n 100n 100n
VDDRX2V8
20 C627 47n
U602 VDDRX1V5
19 R603 820
PMB6272 VCO_RC
18
VDDVCO2V8
17
EN RF_EN
16
VDDXO2V8
C619 1n
15
FSYS1 26MHZ_MCLK
14
GND1
13
X601 TSX-3225
4
3
GND2 HOT2
1 2
HOT1 GND1
26MHz
BT_CLK
RF_CLK
RF_DA
QX
Q
IX
I
9 8 7 6
- 110 -
5 4 3 2
VC1 VC2
PIN 14 PIN 13
L H
H H
L L
R604 22K
RF_TEMP
H L
R602 10K
NCP15XH103J03RC
VBAT
C637
LBAND_PAM_IN
PGND GSM850_900_IN
15 7 4.7n
GND3 TX_EN TXON_PA
8 6
GND2
R607 10K
11
GND1 VRAMP PA_LEVEL
14 5
BY_CAP2 TQM7M5005H VBATT
9 4
U601
R609 1
PA_BAND
BY_CAP1 BS
13 3
1
R606
GSM850_900_OUT MODE_SELECT PA_MODE
10 2
C640 100p
DCS_PCS_OUT DCS_PCS_IN HBAND_PAM_IN
12 1
C630 C631 C601 C621 C647 C633 C639 C646 C638 C626
1u 33u 27p DNI 47p 39p 39p DNI
39p 100p
5 4 3 2
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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