LG 22LQ630H (CHASSIS:LA1EX) 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.
RXA1+
RXB0-
RXA3+
RXA0-
RXB3-
RXACK-
RXB1+
RXA2+
RXB3+
120-ohm
FHD_21.5
L10011
RXA1-
RXB2+
RXACK+
10uF
16V
16V
OPT
C10031
1000pF
50V
50V
OPT
C10032
RXA2-
RXBCK-
RXB2-
RXA3-
RXB1-
RXA0+
FF10001-30
FHD_21.5
P7703
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
0 . 1 u F
16V
16V
FHD_21.5
C10033
PANEL_VCC
RXBCK+
RXB0+
A_DIM
SCAN_BLK1/OPC_OUT
SCAN_BLK2
RXA4+
RXA4-
RXB4-
RXB4+
MDS62110205
7.5T_GAS
GAS5-*2
MDS62110204
5.5T_GAS
GAS6-*1
MDS62110204
5.5T_GAS
GAS2-*1
MDS62110209
GAS5-*5
8.5T_GAS
MDS62110205
7.5T_GAS
GAS1-*2
MDS61887708
12.5T_GAS
GAS6-*4
MDS62110205
7.5T_GAS
GAS2-*2
MDS62110205
7.5T_GAS
GAS7-*2
MDS61887710
9.5T_GAS
GAS6-*3
MDS61887710
9.5T_GAS
GAS3-*3
MDS62110206
6.5T_GAS
GAS4
MDS62110206
6.5T_GAS
GAS5
MDS62110204
5.5T_GAS
GAS1-*1
MDS62110206
GAS3
6.5T_GAS
MDS62110206
6.5T_GAS
GAS2
MDS61887710
9.5T_GAS
GAS5-*3
MDS61887708
12.5T_GAS
GAS3-*4
MDS61887708
12.5T_GAS
GAS4-*4
MDS62110204
5.5T_GAS
GAS4-*1
MDS62110204
5.5T_GAS
GAS7-*1
MDS61887710
9.5T_GAS
GAS2-*3
MDS62110209
GAS2-*5
8.5T_GAS
MDS62110209
GAS3-*5
8.5T_GAS
MDS61887708
12.5T_GAS
GAS7-*4
MDS62110206
6.5T_GAS
GAS6
MDS61887708
12.5T_GAS
GAS1-*4
MDS62110206
6.5T_GAS
GAS7
MDS62110204
5.5T_GAS
GAS5-*1
MDS62110205
7.5T_GAS
GAS4-*2
MDS62110209
8.5T_GAS
GAS6-*5
MDS61887708
12.5T_GAS
GAS2-*4
MDS61887710
9.5T_GAS
GAS4-*3
MDS62110205
7.5T_GAS
GAS3-*2
MDS62110209
GAS1-*5
8.5T_GAS
MDS62110209
8.5T_GAS
GAS7-*5
MDS62110209
GAS4-*5
8.5T_GAS
MDS62110206
6.5T_GAS
GAS1
MDS61887708
12.5T_GAS
GAS5-*4
MDS62110205
7.5T_GAS
GAS6-*2
MDS61887710
9.5T_GAS
GAS7-*3
MDS62110204
5.5T_GAS
GAS3-*1
MDS61887710
9.5T_GAS
GAS1-*3
MDS62110209
8.5T_GAS
GAS8-*5
MDS61887708
12.5T_GAS
GAS8-*4
MDS62110204
5.5T_GAS
GAS8-*1
MDS62110205
7.5T_GAS
GAS8-*2
MDS61887710
9.5T_GAS
GAS8-*3
MDS62110206
6.5T_GAS
GAS8
7
LVDS
[30Pin FHD LVDS Connector]
( F o r F H D 6 0 H z _ S m a l l )
LVDS_TN
SMD GASKET
2 0 1 1 . 1 1 . 2 3
22LQ630H-UA
LA1EX
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
2SC3052
Q802
E
B
C
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
2SC3052
Q801
E
B
C
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
0
R824
0
R815
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
BSS83
Q806
OPT
S
B
D
G
0 . 1 u F
16V
16V
C805
OPT
68K
OPT
OPT
R857
0 . 1 u F
C1504
10uF
10V
10V
C1501
USB1_OCD
SIDE_USB_DP
22uF
16V
16V
C1500
1/8W
2K
1%
R1510
+5V_USB
USB1_CTL
1/8W
2K
1%
R1509
4.7K
OPT
R1504
SIDE_USB_DM
MLB-201209-0120P-N2
120-ohm
L1451
10K
R1503
+3.3V_Normal
47
R1500
CIS21J121
L1451-*1
USB DOWN STREAM
3AU04S-305-ZC-(LG)
JK1450
USB_JACK
1
2
3
4
5
AP2191DSG
EAN61849601
IC1500
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
RCLAMP0502BA
D1513
OPT
10K
R810
0
OPT
R811
HDMI_ARC
10K
R812
2.7K
R888
2.7K
R884
2.7K
R889
2.7K
R885
+3.5V_ST
YKF45-7058V
JK802
14
NC
13
CEC
5
20
SHIELD
12
CLK-
11
CLK_SHIELD
2
19
HPD
18
+5V_POWER
10
4
1
17
DDC/CEC_GND
9
8
3
16
SDA
7
6
15
SCL
YKF45-7058V
JK801
14
NC
13
CEC
5
20
SHIELD
12
CLK-
11
CLK_SHIELD
2
19
HPD
18
+5V_POWER
10
4
1
17
DDC/CEC_GND
9
8
3
16
SDA
7
6
15
SCL
SIGN6409
$0.055
HDMI_1
HDMI_2
$0.055
HDMI EEPROM
8
HDMI
For CEC
$ 0 . 0 7 7
USB_DIODES
2 0 1 1 . 1 1 . 2 3
22LQ630H-UA
LA1EX
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
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
AT24C02BN-SH-T
IC1105
RGB_EEMPROM_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
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
SPG09-DB-010
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
P E J 0 2 7 - 0 4
JK1102
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
EXT_SPK_L-
009:H20
EXT_SPK_L+
009:O20
1uF
10V
10V
OPT
C1137
0
R1145
0
R1144
1uF
10V
10V
OPT
C1138
P E J 0 2 7 - 0 4
JK1100
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
EXT_SPK_L+
0 0 9 : Z 2 4
9.1K
R1130
0
R1122
10uF
16V
16V
C1134
PILLOW_MUTE
001:AL22;016:AF16;014:AA23
1uF
10V
10V
C1136
2SC3875S(ALY)
Q1116
E
B
C
10K
R1114
3K
R1115
2SC3052
Q1118
E
B
C
100
R1128
15pF
50V
50V
C1130
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+
EXT_SPK_L-
0 0 9 : Z 2 4
0
OPT
R1120
1K
R1116
10uF
6.3V
C1131
0
OPT
R1121
SUB_MUTE
001:AB13;009:R25
1K
R1124
SUB_MUTE
001:AB13;009:U20
1K
R1119
CB3216PA501E
L1100
+5V_Normal
390
R1117
+5V_Normal
ISA1530AC1
Q1117
E
B
C
1uF
10V
C1133
4.7K
R1132
OPT
100
OPT
R1126
1.6K
R1118
4.7K
R1131
R1131
4.7K
R1150
0 . 1 u F
C1135
0 . 1 u F
OPT
C1132
EXT_SPK
002:V10
100
R1123
10K
OPT
R1129
3.3K
R1125
PC AUDIO
RGB PC (250 APPLY)
9
E x t e r n a l s p e a k e r
RGB PC
EXTERNAL SPEAKER OUT
2 0 1 1 . 1 1 . 2 3
22LQ630H-UA
LA1EX
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 . 1 u F
C1001
RS232_TX010:V26
RESET_high
016:H27
TP1000
PTC_TX_S7
001:AB18;001:AL22
UART_SWA
016:AA21
MC14053BDR2G
IC1000
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
100
R1015
PTC_RX_S7_3.3V
001:AB18;001:AL24
PTC_RX_5V
016:X10
MC14053BDR2G
IC1001
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
JP1001
2SC3875S(ALY)
Q1001
E
B
C
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
+3.5V_ST
220pF
C1011
+3.5V_ST
S7_TX
001:AB18;001:AL24
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
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
2SC3875S(ALY)
Q1000
E
B
C
PTC_TX
016:X10
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
10K
R1050
0 . 1 u F
16V
16V
OPT
C1020
1K
R1053
0 . 1 u F
16V
16V
OPT
C1021
BSS83
Q1011
S
B
D
G
10K
R1055
BSS83
Q1012
S
B
D
G
+5V_ST
+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
P E J 0 2 7 - 0 1
P1000
Old
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
P E J 0 2 7 - 0 4
P 1 0 0 0 - * 1
New
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
1K
R1026
100
R1006
100
R1011
100
R1009
100
R1005
100
R1008
100
R1012
100
R1013
100
R1010
100
R1034
100
R1035
100
R1027
ADMC5M03200L_AMODIODE
5.6V
D1005
ADMC5M03200L_AMODIODE
5.6V
D1007
12507WS-04L
P1001
1
2
3
4
5
+3.5V_ST
JP1003
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
TxD--> R
2 0 1 1 . 1 1 . 2 3
22LQ630H-UA
LA1EX
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