LG LG-A270 - Page 95

- 95 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
R419
R455
J400
2
3
4
5
6
1
M5
M4
M3
M4F
M1
M6
CN400
14
12
11
10
9
8
7
6
5
4
3
2
1
13
L404
0.1uH
R541
10p
10p
VA405 VA407
10p
C422
12p
C403
27p
R421
100K
VA406
DNI
C411
470p
VA404
LD410
4 3 2
1
LD420
4 3 2
1
LD400
4 3 2
1
R422 100K
D400
C402
27p
100K
R423
VA
R407
4.7
R424
100K
VBAT
TP400
470p
C412
100ohmsR496
C401
27p
C404
27p
100n
L401
R499 100ohms
VA401
C416
39pF
C418
39pF
R528
1K
VA402
R498 100ohms
VA403
100ohmsR418
100ohmsR420
R495 100ohms
DNI
VA408
C405
27p
FB402
1800
FB403
1800
0.1uF
C513
C512
0.1uF
VIO28
R540
10K
C419 10u
C400
1u
100ohmsR497
R1 120K
SCHB1B0201
S400
ENSY0023802
GND
DAT2
CD_DAT3
CMD
VDD
CLK
VSS
CARD_DETECT
DAT0
COVER_DETECT1
DAT1
47K
R414
2
47K
R410
2
C409
1u
VIO28
R544
DNI
R413 470K
R412
100K
R542
1.5K
VMIC_BIAS_P
L402 0.1uH
L403 0.1uH
1800FB401
C406 47p
C414
39pF
FM_ANT
HS_MIC_P
HS_MIC_N
HS_L
GND
GND
VBAT
TF_DATA0
TF_CMD
TF_CLK
LSA0
LSCE0B_R
LSDA_R
LSCK
LRSTB_R
HS_R
HS_HOOK_DET
LCD_MAKER_ID
FM_ANT_GND
LCD_BL_1
TORCH_LED
HS_JACK_DET
TF_CHECK
TORCH
A240 : Not mount
u-SD CARD
A270/A275 : Mount
A240/A275 : Not mount
A270 : Mount
LCD Connector
3.5phi HEADSET