Only For Training And Service Purposes - LG KP235 Service Manual

4. TROUBLE SHOOTING
CIRCUIT
R600
nLCD_RESET LCD_RESET
100ohm
C600
VA600
47p
EVL14S02200
FL601
L_DATA11 INOUT_B1 INOUT_A1 L_DATAOUT11
9 1
L_DATA10 L_DATAOUT10
INOUT_B2 INOUT_A2
8 2
L_DATA09 INOUT_B3 INOUT_A3 L_DATAOUT09
7 3
L_DATA08 INOUT_B4 INOUT_A4 L_DATAOUT08
6 4
ICVE10184E150R101FR
(100ohm, 15pF)
FL603
L_DATA04 INOUT_A1 INOUT_B1 L_DATAOUT04
1 9
L_DATA07 INOUT_A2 INOUT_B2 L_DATAOUT07
2 8
L_DATA06 INOUT_A3 INOUT_B3 L_DATAOUT06
3 7
L_DATA05 L_DATAOUT05
INOUT_A4 INOUT_B4
4 6
ICVE10184E150R101FR
(100ohm, 15pF)
FL605
C_CD04 INOUT_A1 INOUT_B1 C_CD04_OUT
1 9
C_CD05 INOUT_A2 INOUT_B2 C_CD05_OUT
2 8
C_CD06 INOUT_A3 INOUT_B3 C_CD06_OUT
3 7
C_CD07 C_CD07_OUT
INOUT_A4 INOUT_B4
4 6
ICVE10184E150R500FR
(50ohm, 15pF)
2V8_AIT_BT
R603 R604
FL608
4.7K 4.7K
C_RST INOUT_B1 INOUT_A1
9 1
C_SCK INOUT_B2 INOUT_A2
8 2
C_SDA INOUT_B3 INOUT_A3
7 3
L_DATA03
INOUT_B4 INOUT_A4
6 4
ICVE10184E150R500FR
(50ohm, 15pF)
1V8_AIT_CORE
C402
0.01u
DATA00
DATA01
DATA02
DATA03
DATA04
DATA05
DATA06
DATA07
DATA08
DATA09
DATA10
AIT_BYPASS DATA11
DATA12
BYPASS MODE
DATA13
HIGH
(MAIN, SUB LCD)
DATA14
DATA15
LOW CAMERA MODE
AIT_BYPASS
AIT_BYPASS
_MAIN_LCD_CS
nRD
C409 nWR
NA ADD01
nAIT_RESET
_SUB_LCD_CS
2V8_AIT_BT
R404
100K
C_RST
C415 1000p
AIT_13M
C416
1u
LGE Internal Use Only
128x160 TFT(MAIN) , 96x64 CSTN(SUB) LCD CONNECTOR with VGA CAMERA
(SOCKET, 60pin, 0.4mm pitch, 1.0T, ENBY0036801)
(CAMERA CORE POWER)
1V8_AIT_CORE
SPK_RCV_P
C601
47p
SPK_RCV_N
C603 C602
27p 27p
L_DATAOUT08
L_DATAOUT09
L_DATAOUT10
L_DATAOUT11
L600 L_DATAOUT12
MOTOR(+)
100nH
LCD_VSYNC_OUT
C604
MLED4
1u MLED3
MLED2
MLED1
MLED
L_DATAOUT07
L_DATAOUT06
L_DATAOUT05
C_CD05_OUT
C_CD06_OUT
C_CD07_OUT
C_VS_OUT
C_HS_OUT
C_SDA_IN
C_SCL_IN
C_RST_OUT
C605
1u
C_RST_OUT
C_SCL_IN
C_SDA_IN
L_DATAOUT03
U402
R401
E9
PGPIO0
D9
PGPIO1
C10
PGPIO2
H5 B9
VDD_CORE PGPIO3
A7
PGPIO4
H6 B7
GND_CORE PGPIO5
F9
PGPIO6
D10
PGPIO7
D3 A10
PSCAN_EN PLCD0 L_DATA00
E10 B10
PTEST_EN PLCD1 L_DATA01
A9
PLCD2 L_DATA02
C9
PLCD3 L_DATA03
D8
PLCD4 L_DATA04
A8
PLCD5 L_DATA05
J3 B8
PHD0 PLCD6 L_DATA06
H3 C8
PHD1 PLCD7 L_DATA07
K4 C7
PHD2 PLCD8 L_DATA08
J4 C6
PHD3 PLCD9 L_DATA09
K5 B6
PHD4 PLCD10 L_DATA10
J5 C5
PHD5 PLCD11 L_DATA11
K6 B5
PHD6 PLCD12 L_DATA12
J6 A6
PHD7 PLCD13 L_DATA13
K10 C4
PHD8 PLCD14 L_DATA14
J9 A5
PHD9 PLCD15 L_DATA15
H10 B4
PHD10 PLCD16
H9 C3
PHD11 PLCD17
G10
PHD12
AIT701G
G9 F8
PHD13 GND_IO2
G8 E8
PHD14 VDD_IO2
F10 A2
PHD15 PLCD2_CS_ L_SUB_LCD_CS
B2
PLCD1_CS_ L_MAIN_LCD_CS
A3
PLCD_RD_ LCD_RD
B3
PLCD_A0 LCD_RS
K7 A4
PHLCD_BY PLCD_WE_ LCD_WR
K1 E3
PHCS_ PHSYNC C_HS
J1 G1
PHRD_ PVSYNC C_VS
K2 E2
PHWE_ PD0 C_CD00
J7 E1
PHLCD_A0 PD1 C_CD01
J8 D1
PHINT PD2 C_CD02
D2
PD3 C_CD03
K3 C2
PRST_ PD4 C_CD04
C1
PD5 C_CD05
K8 A1
PHLCD2_CS_ PD6 C_CD06
B1
PD7 C_CD07
J10
PHGPIO_CS_
H1
PSEN CAM_PWR_EN
H2
PSDA C_SDA
F2 G2
PS_RST_ PSCK C_SCK
K9 F3
PHWAIT_ PDCLK
J2 F1
PMCLK PPXL_CLK
G3 H8
VDD_IO0 VDD_IO1
H4 H7
GND_IO0 GND_IO1
C417 C418
EUSY0318501
NA NA
(LCD/CAM POWER)
2V8_AIT_BT
2V8_AIT_BT
R601
100K
CN600
1 60
(LCD_RD)
2 59
3 58
LCD_ID
4 57
IF_MODE
5 56
LCD_RS_OUT
6 55
L_MAIN_LCD_CS_OUT
7 54
LCD_WR_OUT
8 53
L_DATAOUT15
9 52
L_DATAOUT14
10 51
L_DATAOUT13
11 50
12 49
13 48
14 47
LCD_RESET
15 46
L_SUB_LCD_CS_OUT
16 45
L_DATAOUT00
17 44
L_DATAOUT01
18 43
L_DATAOUT02
19 42
L_DATAOUT03
20 41
L_DATAOUT04
21 40
C_CD04_OUT
22 39
C_CD03_OUT
23 38
C_CD02_OUT
24 37
C_CD01_OUT
25 36
C_CD00_OUT
26 35
27 34
C_PCLK_OUT
28 33
29 32
C_MCLK_IN
30 31
CAM_PWR_EN
C606 C607
R602
1u 1u
100K
LCD_VSYNC_OUT
0
2V8_VEXT VBAT
R406
100K
C422
1u
2V8_AIT_BT
C407
1u
2V8_AIT_BT
C_MCLK
C_PCLK
C419
1u
Copyright © 2008 LG Electronics. Inc. All right reserved.
- 58 -
FL600
L_SUB_LCD_CS_OUT INOUT_A1 INOUT_B1 L_SUB_LCD_CS
1 9
LCD_WR_OUT INOUT_A2 INOUT_B2 LCD_WR
2 8
L_MAIN_LCD_CS_OUT L_MAIN_LCD_CS
INOUT_A3 INOUT_B3
3 7
LCD_RS_OUT LCD_RS
INOUT_A4 INOUT_B4
4 6
ICVE10184E150R101FR
(100ohm, 15pF)
FL602
L_DATAOUT15 INOUT_A1 INOUT_B1 L_DATA15
1 9
L_DATA14
L_DATAOUT14 INOUT_A2 INOUT_B2
2 8
L_DATAOUT13 INOUT_A3 INOUT_B3 L_DATA13
3 7
L_DATAOUT12 INOUT_A4 INOUT_B4 L_DATA12
4 6
ICVE10184E150R101FR
(100ohm, 15pF)
FL604
INOUT_B1 INOUT_A1
9 1
L_DATAOUT02 INOUT_B2 INOUT_A2 L_DATA02
8 2
L_DATAOUT01 L_DATA01
INOUT_B3 INOUT_A3
7 3
L_DATAOUT00 INOUT_B4 INOUT_A4 L_DATA00
6 4
ICVE10184E150R101FR
(100ohm, 15pF)
FL606
C_CD00_OUT INOUT_B1 INOUT_A1 C_CD00
9 1
C_CD01_OUT INOUT_B2 INOUT_A2 C_CD01
8 2
C_CD02_OUT C_CD02
INOUT_B3 INOUT_A3
7 3
C_CD03_OUT C_CD03
INOUT_B4 INOUT_A4
6 4
ICVE10184E150R500FR
(50ohm, 15pF)
FL607
C_MCLK_IN INOUT_A1 INOUT_B1
1 9
C_PCLK_OUT INOUT_A2 INOUT_B2
2 8
C_HS_OUT INOUT_A3 INOUT_B3
3 7
C_VS_OUT INOUT_A4 INOUT_B4
4 6
ICVE10184E150R500FR
(50ohm, 15pF)
(300mA) (300mA)
2V8_AIT_BT 1V8_AIT_CORE
U405
R408
0
RT9011-MGPQW
EUSY0319001
1 8
VIN VOUT1
2 7
EN1 VOUT2
3 6
EN2 NC2
4 5
NC1 GND
C423
1u

Only for training and service purposes

C_MCLK
C_PCLK
C_HS
C_VS
R409
0
C424
1u