LG KE800 Service Manual page 88

7. CIRCUIT DIAGRAM
1 2
A
OUT501 OUT502 OUT503
B
C
D
NA C519
R503
3.3nH
0.5p C522
E
F
G
R512
RF_TEMP
22K
R513
10K
H
1 2
3 4 5
SW501 KMS-505
C501 100p
G2
ANT RF
L501 0 G1
L502
C502
NA 0
C508 C509 C510
1.8p 1.8p 2.7p
2V85_RF
C514
4700p
1V5_RF 2V85_RF
33
34
35
NA C520 36
37
R514 10 38
R504
39
3nH
40
R505 C524 C525 C526 C527
1.2p C523
47n 0.1u 5600p 10p
1K 41
R507
C531 0 C532
NA NA
GND25 GND15
27 26
GND24 GND14
28 25
GND23 GND13 R509
29 24
GND22 GND12
30 23
GND21 GND11 0
31 22
GND20 GND10 C534 C535
32 21
GND19 GND9 NA NA
33 20
GND18 GND8
34 U502 19
GND17 GND7
35 18
GND16 GND6
36 SKY77340 17
GSM_OUT EN
9 8 VSUPPLY
GND5 GSM_IN
10 7
GND4 VRAMP
11 6
RSVD2 VBATT
12 5
GND3 RSVD1
13 4
GND2 BS
14 3
GND1 DCS_PCS_IN
15 2
DCS_PCS_OUT MODE
16 1
C541 C542 C543
68u
27p 1000p
3 4 5
6 7 8
2V85_RF
C504
0.1u
FL501
YGHF-S006A
18 3
GMS_RX- VDD
19 22
GSM_RX+ VCTRL1
16 21
EGSM_RX- VCTRL2
17 20
EGSM_RX+ VCTRL3
14
DCS_RX-
15 2
DCS_RX+ GND1 C505 C506
12 4
PCS_RX- GND2 39p 39p
13 5
PCS_RX+ GND3
7
GND4
6 9
TX1G GND5
8 10
TX2G GND6
C511 C512 C513
2.7p 1.2p 1.2p
1V5_RF 1V5_RF 2V85_RF 2V7_VCXO
C515 C551 C516 C517 C518
0.1u 0.1u 0.1u NA 0.1u
FE2
VBIAS
VDDTX1V5 VDDRX2V8
20
TX1 U501 VDDRX1V5
19
TX2 VCO_RC
PMB6272 18
R502 820
VDDTX2V8 VDDVCO2V8
17
VDDMIX2V8 EN
16
GND3 VDDXO2V8
15
FSYS1
14
C521
GND4 GND1
13
2V7_VCXO
X501
3 1
OUT VCONT
4 2
VCC GND C533
C529 22p
26MHz
0.1u
2V85_RF 1V5_CORE
R510
C552
10 NA
C538 C539
0.1u 47n
820p NA
C547 C548
6 7 8
- 89 -
9 10 11
ANT_SW1
ANT_SW2
ANT_SW3
C507
39p
RF_EN
26MHZ_MCLK
820p
C528
NA
R508
AFC
620
RF_CLK
RF_DA
C536 C537
NA NA
BT_CLK
QX
Q
IX
I
PA_BAND
C546
NA
R511
PA_LEVEL
1.2K
MODE
TXON_PA
NA
C549
Engineer:
Drawn by:
R&D CHK:
TITLE:
KE800
DOC CTRL CHK:
REV-1.2
MFG ENGR CHK:
Changed by: Date Changed: Time Changed: QA CHK: REV:
mentor 2006-04-07 3:07:35 pm
9 1 0 11
12
A
B
C
D
E
F
G
H
LG Electronics
Size:
A3
12 1 8 A
Drawing Number: Page:
5/5
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