LG KG245 Service Manual page 105

7. CIRCUIT DIAGRAM
1 2
ANT400 ANT401 ANT402
A
1p
C407
L407
5.6nH
NA
L400
SW400
KMS-506
B
C417
22p
GND13 PCS_RX2
24 15
GND12 PCS_RX1
23 14
GND11 DCS_RX2
22 13
C
GND10 DCS_RX1
21 12
GND9 EGSM_RX2
20 11
GND8 EGSM_RX1
19 10
GND7
18
GND6
17
GND5
16
GND4
7
GND3 DCSPCS_TX
6 5
GND2 EGSM_TX
4 8
GND1
2
FL400
HWXQ511
D
C439 C440
270p 270p
E
1 2
LGIC(42)-A-5505-10:01
3 4 5
VBAT
C400 C401 C402 C403 C404
18p 0.01u 33p 12p 22u
RSVD_GND BS
19 1
ENABLE
U400 18
GSM_OUT GSM_IN
SKY77328
11 4
C409
DCS_PCS_OUT DCS_PCS_IN
8p
15 3
C410
NA L406
15nH
C415 C416
0.01u 0.01u
C447 R410
22p TX_RAMP
1K
C418 C419
NA NA
C420
39p
C423 2p
L403
5.6nH
C425 1.8p
C426 1.5p
L404
6.8nH
C427 1.5p
C428 12p
L405
27nH
C432 12p
(GPIO_9)
ANT_SW1
(GPIO_11)
ANT_SW2
VBAT
RF2V85
U403
1 5
IN OUT
2
GND
3 4
CLKON EN BYP
MIC5255-2.85BM5
C444 C445 C446
R419
100K 1u
0.01u 4.7u
3 4 5
6 7
R605 100
R606 100
C405 C406
27p 27p
RF2V85 2V8_VEXT
C408
R403
24 33p
R404 R405
220 220
C411 C412 C413
22p 0.1uF 100p
C414
R407
10p
30
R408 R409
180 180
C421
27p
RFIPP XOUT
17 8
RFIPN BIP
18 7
RFIDP U401 BIN
19 6
RFIDN BQP
20 SI4210 5
RFIEP BQN
21 4
RFIEN SDIO
22 3
RFIAP _SEN
23 2
RFIAN SCLK
24 1
C429 C430
RF2V85
27p 27p
C434 C435
22p 0.1u
C438
1000p
2V75_VVCXO
R416
3
100
4
C442
C443
2.2u
NA
Section
Designer
Checked
Approved
Iss. Notice No. Date Name
LG Electronics Inc.
- 106 -
8 9 10
PA_BAND (GPIO_17)
PA_EN (GPIO_16)
R411
(GPIO_10)
RF_RST
NA
(GPIO_4)
RF_PWR_DWN
IP
C422
39p
IN
QP
C424
39p
QN
S_DATA (GPIO_20)
(GPIO_19)
S_EN
S_CLK (GPIO_21)
2V75_VVCXO
C431
27p
C433
2.2u
U402
SN74AHC1GU04DCKR
C436
R412 C437
26MHz
1000p 1000p
100
R415
X400
1M
R417
1
OUT VCONT AFC
15K
2
VCC GND
26MHz
C441
1000p
Date Sign & Name
BEETLE
MODEL
(KG245)
DRAWING
RF
NAME
DRAWING
REV.1.0
NO.
LG Electronics Inc.
A
B
C
(1%)
D
Sheet/
Sheets
4/6