LG GD510 - LCD Display Trouble

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
5. Trouble shooting
GD510 Operational Description Revision A
LG Electronics 66/113 LGE Property
5.4 LCD display trouble
Check Points
-LCD assembly status ( LCD FPCB, Connector on FPCB)
-EMI filter soldering
-Connector combination
Charge Pump
Check signal
flow via EMI filter
Check the connection LCD FPCB
Connector
FL502
FL501
FL506
FL501 EVRC14S03Q030100R
01
5
64
73
82
91
INOUT_A1 INOUT_B1
INOUT_A2 INOUT_B2
INOUT_A3 INOUT_B3
INOUT_A4 INOUT_B4
1G 2G
EVRC14S03Q030100R
FL502
0
1 5
64
73
82
91
INOUT_A1 INOUT_B1
INOUT_A2 INOUT_B2
INOUT_A3 INOUT_B3
INOUT_A4 INOUT_B4
1
G
2G
FL506EVRC14S03Q030100R
0
1 5
6 4
7 3
8 2
9 1
INOUT_A1INOUT_B1
INOUT_A2INOUT_B2
INOUT_A3INOUT_B3
INOUT_A4INOUT_B4
1G
2
G
VA502
EVLC14S02050
VFM_2V9
CN503
GB042-40S-H10-E3000
21 20
22 19
23 18
24 17
25 16
26 15
27 14
28 13
29 12
30 11
31 10
32 9
33 8
34 7
35 6
36 5
37 4
38 3
39 2
40 1
TP
TP501
1u
C510
TP
TP502
LCD_ID
DIF_VSYNC
DIF_WR
DIF_D7
DIF_D6
DIF_D5
DIF_D4
DIF_D3
DIF_D2
DIF_D1
DIF_D0
DIF_CS
DIF_CD
DIF_RD
MLED6
DIF_RESET
MLED5
MLED4
MLED3
MLED2
MLED1
MLED
IF_MODE0
IF_MODE1
ENBY0036001
GB042-40S-H10-E3000
LCD Connector