LG 26LQ630H (CHASSIS:LA1EY) Service Manual ▷ View online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
PWM_DIM
TP700
TP701
OPC_OUT
RXA0-
PANEL_VCC
RXACK-
RXA1-
1000pF
50V
50V
OPT
C702
RXA3-
RXA1+
RXA2+
10uF
16V
16V
OPT
C701
RXACK+
3.3K
OPT
R712
10K
OPT
R711
RXA0+
RXA3+
+3.3V_Normal
0 . 1 u F
16V
16V
WAFER_HD
C703
RXA2-
0
OPT
R713
FF10001-30
WAFER_HD
P704
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
SCAN_BLK2
SCAN_BLK1/OPC_OUT
RXB0-
RXACK-
RXACK+
RXB3+
RXA2+
RXB3-
RXA3-
RXA4-
10uF
16V
16V
OPT
C700
RXB4+
RXA3+
RXA0-
RXB4-
RXA1+
RXA1-
RXB0+
RXB1+
RXA0+
10K
OPT
R710
PANEL_VCC
RXBCK+
RXA4+
F I - R E 5 1 S - H F - J - R 1 5 0 0
P703
WAFER_FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
0
R707
LVDS_51PIN_GND
SCAN_BLK2
RXA2-
0 . 1 u F
16V
16V
C710
WAFER_FHD
1000pF
50V
50V
C709
OPT
RXB1-
RXB2-
RXBCK-
10K
BIT_SEL_LOW
R709
RXB2+
3.3K
OPT
R705
+3.3V_Normal
MDS61887706
13T_GAS
GAS6
MDS61887706
13T_GAS
GAS2
MDS61887706
13T_GAS
GAS4
MDS61887706
13T_GAS
GAS5
MDS61887706
GAS3
13T_GAS
MDS61887706
13T_GAS
GAS1
MDS61887706
13T_GAS
GAS7
MDS61887704
11T_GAS
GAS2-*4
MDS61887704
11T_GAS
GAS6-*4
MDS61887704
11T_GAS
GAS3-*4
MDS61887704
11T_GAS
GAS4-*4
MDS61887704
11T_GAS
GAS5-*4
MDS61887704
11T_GAS
GAS7-*4
MDS61887704
11T_GAS
GAS1-*4
MDS61887701
GAS4-*5
15T_GAS
MDS61887701
GAS2-*5
15T_GAS
MDS61887701
15T_GAS
GAS6-*5
MDS61887701
15T_GAS
GAS7-*5
MDS61887701
GAS5-*5
15T_GAS
MDS61887701
GAS1-*5
15T_GAS
MDS61887701
GAS3-*5
15T_GAS
MDS61887706
13T_GAS
GAS8
MDS61887701
15T_GAS
GAS8-*2
MDS61887704
11T_GAS
GAS8-*1
120
WAFER_FHD
L702
120
WAFER_HD
L701
7
LVDS
LVDS_SEL
[ 3 0 P i n L V D S C o n n e c t o r ]
(For HD 60Hz_Normal)
[ 5 1 P i n L V D S C o n n e c t o r ]
( F o r F H D 6 0 / 1 2 0 H z )
LVDS_SEL
BIT_SEL
2 0 1 1 . 0 8 . 1 6
LA1EY
S 6 5 0 0 ( S a t u r n 7 L R )
SMD GASKET
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
5V_HDMI_1
CK+_HDMI2
D801
D1+_HDMI2
D2+_HDMI1
5V_HDMI_1
DDC_SCL_1
1K
R895
10K
R873
0 . 1 u F
16V
16V
C801
DDC_SCL_1
D2+_HDMI2
D0+_HDMI2
3.3K
R801
D2-_HDMI2
5V_HDMI_2
5V_DET_HDMI_1
22
R877
DDC_SCL_2
1K
R896
HPD1
0 . 1 u F
C807
CK-_HDMI2
D2-_HDMI1
D0+_HDMI1
D1-_HDMI2
ENKMC2838-T112
D822
D822
A1
C
A2
D0-_HDMI2
22
R875
DDC_SDA_2
DDC_SDA_2
HPD2
5V_HDMI_2
D802
OPT
D1+_HDMI1
EDID_WP
22
R876
J P 8 0 9
3.3K
R802
ENKMC2838-T112
D821
D821
A1
C
A2
+5V_Normal
22
R878
CK-_HDMI1
1.8K
R803
0 . 1 u F
16V
16V
C802
D0-_HDMI1
DDC_SDA_1
J P 8 1 0
10K
R830
HDMI_CEC
+5V_Normal
5V_DET_HDMI_2
EDID_WP
10K
R828
D1-_HDMI1
0 . 1 u F
C806
1.8K
R804
HDMI_CEC
DDC_SDA_1
DDC_SCL_2
CK+_HDMI1
10K
R874
RSD-105156-100
JK801
14
RESERVED
13
CEC
5
20
BODY_SHIELD
12
TMDS_CLK-
11
TMDS_CLK_SHIELD
2
19
HOT_PLUG_DETECT
18
VDD[+5V]
10
4
1
17
DDC/CEC_GND
9
8
3
16
SDA
7
6
15
SCL
0
R824
HDMI_CEC
0
R815
HDMI_CEC
R1EX24002ASAS0A
HDMI_1_RENESAS
IC801-*1
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R1EX24002ASAS0A
HDMI_2_RENESAS
IC802-*1
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AT24C02C-SSHM-T
IC801
HDMI1_ATMEL_E type
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AT24C02C-SSHM-T
IC802
HDMI2_ATMEL_E type
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D804
OPT
GND
CEC_REMOTE_S7
0
R855
10K
R856
OPT
GND
68K
R854
OPT
HDMI_CEC
AVRL161A1R1NT
OPT
D803
0 . 1 u F
16V
16V
C805
OPT
68K
OPT
OPT
R857
0 . 1 u F
C804
10uF
10V
10V
C803
USB1_OCD
SIDE_USB_DP
22uF
16V
16V
C800
1/8W
2K
1%
R805
+5V_USB
USB1_CTL
1/8W
2K
1%
R800
4.7K
OPT
R808
SIDE_USB_DM
MLB-201209-0120P-N2
120-ohm
L800
10K
R807
+3.3V_Normal
47
R806
CIS21J121
L800-*1
USB DOWN STREAM
3AU04S-305-ZC-(LG)
USB_JACK
P800
1
2
3
4
5
AP2191DSG
EAN61849601
IC800
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
RCLAMP0502BA
OPT
D800
RSD-105156-100
JK802
14
RESERVED
13
CEC
5
20
BODY_SHIELD
12
TMDS_CLK-
11
TMDS_CLK_SHIELD
2
19
HOT_PLUG_DETECT
18
VDD[+5V]
10
4
1
17
DDC/CEC_GND
9
8
3
16
SDA
7
6
15
SCL
10K
R810
0
OPT
R811
HDMI_ARC
10K
R812
2.7K
R888
2.7K
R884
2.7K
R889
2.7K
R885
+3.5V_ST
BSS83
Q806
OPT
S
B
D
G
2SC3052
Q801
E
B
C
2SC3052
Q802
E
B
C
SIGN6409
$0.055
HDMI_1
HDMI_2
$0.055
HDMI EEPROM
8
HDMI
For CEC
$ 0 . 0 7 7
USB_DIODES
S 6 5 0 0 ( S a t u r n 7 L R )
LA1EY
2 0 1 1 . 0 8 . 1 6
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
15K
R1108
100pF
50V
50V
C1108
15K
R1107
470K
R1103
PC_R_IN
0 0 2 : T 1 1
10K
R1111
AMOTECH
5.6V
OPT
D1101
470K
R1102
10K
R1110
100pF
50V
C1107
AMOTECH
5.6V
OPT
D1102
PC_L_IN
0 0 2 : T 1 2
0
R1112
0
R1113
1uF
10V
10V
OPT
C1137
EXT_SPK_L-
009:H20
EXT_SPK_L+
009:O20
1uF
10V
10V
OPT
C1138
KJA-PH-0-0177
JK1102
3
DETECT
4
L
5
GND
1
R
KJA-PH-0-0177
JK1100
3
DETECT
4
L
5
GND
1
R
DSUB_R+
5.6V
OPT
D1114
DSUB_HSYNC
RGB_DDC_SDA
EDID_WP
R1EX24002ASAS0A
IC1105-*1
RGB_EEMPROM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
18pF
50V
C1128
5.6V
OPT
OPT
D1116
68pF
50V
50V
OPT
C1126
10K
R1142
RGB_EEPORM
1K
R1147
22
R1141
+3.3V_Normal
18pF
50V
C1127
68pF
50V
50V
OPT
C1122
30V
D1109
DSUB_DET
+5V_Normal
30V
D1113
RGB_DDC_SCL
30V
D1111
75
R1135
75
R1137
ENKMC2838-T112
D1115
A1
C
A2
30V
D1110
DSUB_VSYNC
22
R1143
5.6V
D1117
OPT
10K
R1146
75
R1133
2.2K
R1139
2.2K
R1140
DSUB_G+
30V
D1112
DSUB_B+
0 . 1 u F
16V
C1129
0
OPT
R1120
SUB_MUTE
001:AB13;009:R25
1K
R1119
0
OPT
R1121
1uF
10V
C1133
10K
OPT
R1129
100
OPT
R1126
3.3K
R1125
4.7K
R1132
OPT
1K
R1124
4.7K
R1131
R1131
100
R1128
CB3216PA501E
L1100
+5V_Normal
100
R1123
1uF
10V
10V
C1136
+5V_Normal
EXT_SPK_L-
009:X24
10uF
16V
16V
C1134
EXT_SPK
002:V10
TPA6011A4PWPRG4
IC1100
3
PVDD_1
2
ROUT-
4
RHPIN
1
PGND_1
6
RIN
5
RLINEIN
7
VDD
8
LIN
9
LLINEIN
10
LHPIN
11
PVDD_2
12
LOUT-
13
PGND_2
14
LOUT+
15
SHUTDOWN
16
FADE
17
BYPASS
18
AGND
19
SEMAX
20
SEDIFF
21
VOLUME
22
HP/LINE
23
SE/BTL
24
ROUT+
SUB_MUTE
001:AB13;009:U20
9.1K
R1130
EXT_SPK_L+
009:X24
PILLOW_MUTE
001:AL22;016:AF16;014:AA23
10K
R1114
1K
R1116
3K
R1115
390
R1117
4.7K
R1150
0
R1122
DC-1503FAP
JK1104
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
15pF
50V
50V
C1130
0 . 1 u F
OPT
C1132
0 . 1 u F
C1135
10uF
6.3V
C1131
M24C02-RMN6T
IC1105
RGB_EEMPROM_ATMEL
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
1.6K
R1118
2SC3875S(ALY)
Q1116
E
B
C
2SC3052
Q1118
E
B
C
ISA1530AC1
Q1117
E
B
C
5pF
50V
50V
C1100
5pF
50V
50V
C1101
5pF
50V
50V
C1102
PC AUDIO
RGB PC (250 APPLY)
9
EXTERNAL SPEAKER OUT
E x t e r n a l s p e a k e r
RGB PC
S 6 5 0 0 ( S a t u r n 7 L R )
LA1EY
2 0 1 1 . 0 8 . 1 6
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
10K
R1021
0
R1002
0 . 1 u F
C1001
RS232_TX010:V26
RESET_high
016:H27
TP1000
PTC_TX_S7
001:AB18;001:AL22
0
R1000
UART_SWA
016:AA21
100
R1015
100
R1013
0
R1001
1K
R1027
PTC_RX_S7_3.3V
001:AB18;001:AL24
PTC_RX_5V
016:X7
100
R1009
JP1001
100
R1005
0
R1003
0 . 1 u F
C1000
JP1000
+3.5V_ST
100
R1019
10K
R1022
UART3_TX
0 1 0 : E 2 5 ; 0 1 6 : N 1 5 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 3
UART3_TX
0 1 0 : E 1 6 ; 0 1 6 : N 1 5 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 3
UART_SWB
016:AA21
RS232_RX010:V24
220pF
C1012
+3.5V_ST
JP1002
100
R1010
+3.5V_ST
100
R1034
100
R1012
100
R1011
220pF
C1011
SDC15
D1007
A1
C
A2
+3.5V_ST
1K
R1026
S7_TX
001:AB18;001:AL24
100
R1035
100
R1006
0
R1007
100
R1008
UART3_RX
0 1 0 : K 2 3 ; 0 1 6 : N 1 4 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 4
S7_RX
001:AB18;001:AL23
SDC15
D1005
A1
C
A2
TP1001
100
R1020
UART3_RX
0 1 0 : N 1 4 ; 0 1 6 : N 1 4 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 4
0
R1042
0
R1044
0
R1045
PTC_TX
016:X9
EXT_PTC_RESET
001:AE6
10K
R1047
10K
R1048
EXT_PTC_UPDATE
001:AE6
Update_SW
0 1 6 : F 2 2
+3.5V_ST
47K
R1046
47K
R1049
KJA-PH-0-0177
EAG61030001
P1000
3
DETECT
4
L
5
GND
1
R
10K
R1050
0
R1051
0
R1052
1K
R1053
0
R1054
10K
R1055
+5V_ST
0
R1056
+3.5V_ST
+3.5V_ST
RS232_TX
010:N16
RS232_RX
010:N15
RS232_TX_5V
010:V26
RS232_RX_5V
010:V24
RS232_RX_5V
010:U20
RS232_TX_5V
010:U20
0 . 1 u F
16V
16V
OPT
C1020
0 . 1 u F
16V
16V
OPT
C1021
BSS83
Q1011
S
B
D
G
BSS83
Q1012
S
B
D
G
HEF4053B
IC1001
3
Y1C
2
Y0B
4
ZC
1
Y1B
6
E
5
Y0C
7
VEE
8
VSS
9
SC
10
SB
11
SA
12
Y0A
13
Y1A
14
ZA
15
ZB
16
VDD
HEF4053B
IC1000
3
Y1C
2
Y0B
4
ZC
1
Y1B
6
E
5
Y0C
7
VEE
8
VSS
9
SC
10
SB
11
SA
12
Y0A
13
Y1A
14
ZA
15
ZB
16
VDD
2SC3875S(ALY)
Q1001
E
B
C
2SC3875S(ALY)
Q1000
E
B
C
12507WS-04L
P1001
1
2
3
4
5
+3.5V_ST
10
X
X
1
SW_A
PC_SIM
0
RxD -->L
X
1
PTC OAD
X
M-STAR DEBUG
COM/MON
0
SELECT PTC OAD OR NOT
1
X
S e r i a l P o r t
1
SELECT PTC OR BCM DEBUG
1
O b j e c t i v e
X
PTC DEBUG
SIMULATION
SW_B
0
0
RS232C
R S - 2 3 2 C P h o n e j a c k
S 6 5 0 0 ( S a t u r n 7 L R )
LA1EY
2 0 1 1 . 0 8 . 1 6
TxD--> R
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