LG 42SL90QR-MA (CHASSIS:LP91L) Service Manual ▷ View online
* CASE
First adjust the coordinate far away from the target value(x, y).
1. x, y > target
1. x, y > target
i) Decrease the R, G.
2. x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
ii) Decrease the one of the others.
3. x > target, y < target
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
ii) Adjust x value by decreasing the R
4. x < target, y > target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
ii) Adjust x value by decreasing the G
(4) Standard color coordinate and temperature when using the
CA100+ or CA210 equipment
(Slim LCD/LED module’s color coordinate is different from
others, so use below table)
others, so use below table)
- 42/47SL90QR (In case of Edge LED module, the color
coordinates is changing by aging, so you have to use
the below table.)
the below table.)
• In the SET applied LED module (LH90QR, SL90QR
Series), cause of the physical characteristics of LED
Module, sets are taken a 120 minutes by aging time to
stabilize a color coordinates. So White Balance Control
equipments have to get the SET Aging Time from the SET
and then going to control the W/B by revise color
coordinates at each time
Series), cause of the physical characteristics of LED
Module, sets are taken a 120 minutes by aging time to
stabilize a color coordinates. So White Balance Control
equipments have to get the SET Aging Time from the SET
and then going to control the W/B by revise color
coordinates at each time
To check the Coordinates of White Balance, you have to
measure at the below conditions.
Picture Mode : User 1
Dynamic Contrast : Off
Dynamic Colour : Off
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)
measure at the below conditions.
Picture Mode : User 1
Dynamic Contrast : Off
Dynamic Colour : Off
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)
- 13 -
Coordinate
Mode
x y
Temp uv
∆
Cool 0.269±0.002
0.273±0.002
11000K 0.000
Medium 0.285±0.002 0.293±0.002
9300K
0.000
Warm 0.313±0.002 0.329±0.002
6500K
0.003
- 14 -
300
200
801
521
540
530
803
802
550
910
920
900
810
560
310
500
510
120
122
400
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
A2
LV1
A10
LV2
CAT24C02WI-GT3
IC100
CATALYST
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_WP
DSUB_SCL
DSUB_SCL
4.7K
R129
100
R119
4.7K
R128
100
R123
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.
4.7K
R154
READY
+5VST_MST
DSUB_SDA
0 . 0 1 u F
C113
100
R120
10K R133
0
R124
30V
D114
PC_R
PC_AUD_L
220K
R100
75
R107
75
R126
30V
D104
75
R127
75
R108
12K
R137
COMP2_R
MNT_LOUT
10K R132
220K
R121
CVBS_RIN
SD05
ZD201
10uF
16V
C106
SD05
ZD108
PC_B
100uF 16V
C103
ENKMC2837-T112
D127
A
AC
C
COMP1_PR
MNT_VOUT
MNT_ROUT
CDS3C30GTH
30V
D120
SD05
ZD109
CVBS_VIN
PC_G
SD05
ZD100
12K
R136
CVBS_LIN
30V
D101
ENKMC2837-T112
D128
A
AC
C
DSUB_SDA
COMP2_L
SD05
ZD106
30V
D115
75
R125
SD05
ZD200
30V
D203
220K
R122
COMP2_Y
10K
R113
SD05
ZD105
SD05
ZD102
75
R210
SD05
ZD103
75
R109
CDS3C30GTH
30V
D110
COMP1_Y
10uF
16V
C105
RT1C3904-T112
Q201
E
B
C
SD05
ZD104
COMP2_PB
30V
CDS3C30GTH
D100
RT1C3904-T112
Q200
E
B
C
MUTE_LINE
SD05
ZD107
CDS3C30GTH
30V
D107
SD05
ZD101
ENKMC2837-T112
D126
A
AC
C
PC_AUD_R
30V
D201
COMP1_L
12K
R118
COMP1_PB
10K
R114
12K
R117
30V
D204
220K
R104
+5V_MULTI
COMP1_R
COMP2_PR
DSUB_SCL
CDS3C30GTH
30V
D119
220K
R130
220K
R131
10K
R138
10K
R139
12K
R141
12K
R140
0.1uF
C117
0.1uF
C119
0.1uF
C118
4.7K
R111
4.7K
R112
10K
R215
10K
R217
12K
R219
12K
R218
220K
R211
220K
R214
75
R212
68pF
C100
68pF
C102
PC_VS
68
R110
PC_HS
68
R116
J P 1 0 5
J P 1 0 6
J P 1 0 4
10uF
16V
C10000
READY
0
R142
RT1C3904-T112
Q100
E
B
C
0
R143
RT1C3904-T112
Q101
E
B
C
75
R101
75
R103
75
R102
1K
R134
1K
R135
6800pF
C10001
6800pF
C104
M24C02-RMN6T
I C 1 0 0 - * 1
STM_replace
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
SPG09-DB-010
JK105
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 1
JK106
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
PPJ233-01
JK102
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
P P J 2 3 3 - 0 1
JK101
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
P P J 2 3 4 - 0 1
JK103
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
P P J 2 3 4 - 0 1
JK104
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
PC EDID
AV1
COMPONENT1
PC
**MULTI ITEM
1.24C02-SUB:0IMMRAL014D
2.ENKMC2837-SUB:0DS226009AA
[KDS226]
1.24C02-SUB:0IMMRAL014D
2.ENKMC2837-SUB:0DS226009AA
[KDS226]
POP NOISE
PC SOUND
POP NOISE
COMPONENT1/2, AV1, MNT_OUT
COMPONENT2
MNT_OUT
INPUT-ANALOG/PC
H6 SL90
1 1 2
2 0 0 9 / 0 6 / 0 2
EAX61337301
Mstar LED SL90
Mstar LED SL90
CAT24C02WI-GT3
IC100
CATALYST
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_WP
DSUB_SCL
DSUB_SCL
4.7K
R129
100
R119
4.7K
R128
100
R123
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.
4.7K
R154
READY
+5VST_MST
DSUB_SDA
0 . 0 1 u F
C113
100
R120
10K R133
0
R124
30V
D114
PC_R
PC_AUD_L
220K
R100
75
R107
75
R126
30V
D104
75
R127
75
R108
12K
R137
COMP2_R
MNT_LOUT
10K R132
220K
R121
CVBS_RIN
SD05
ZD201
10uF
16V
C106
SD05
ZD108
PC_B
100uF 16V
C103
ENKMC2837-T112
D127
A
AC
C
COMP1_PR
MNT_VOUT
MNT_ROUT
CDS3C30GTH
30V
D120
SD05
ZD109
CVBS_VIN
PC_G
SD05
ZD100
12K
R136
CVBS_LIN
30V
D101
ENKMC2837-T112
D128
A
AC
C
DSUB_SDA
COMP2_L
SD05
ZD106
30V
D115
75
R125
SD05
ZD200
30V
D203
220K
R122
COMP2_Y
10K
R113
SD05
ZD105
SD05
ZD102
75
R210
SD05
ZD103
75
R109
CDS3C30GTH
30V
D110
COMP1_Y
10uF
16V
C105
RT1C3904-T112
Q201
E
B
C
SD05
ZD104
COMP2_PB
30V
CDS3C30GTH
D100
RT1C3904-T112
Q200
E
B
C
MUTE_LINE
SD05
ZD107
CDS3C30GTH
30V
D107
SD05
ZD101
ENKMC2837-T112
D126
A
AC
C
PC_AUD_R
30V
D201
COMP1_L
12K
R118
COMP1_PB
10K
R114
12K
R117
30V
D204
220K
R104
+5V_MULTI
COMP1_R
COMP2_PR
DSUB_SCL
CDS3C30GTH
30V
D119
220K
R130
220K
R131
10K
R138
10K
R139
12K
R141
12K
R140
0.1uF
C117
0.1uF
C119
0.1uF
C118
4.7K
R111
4.7K
R112
10K
R215
10K
R217
12K
R219
12K
R218
220K
R211
220K
R214
75
R212
68pF
C100
68pF
C102
PC_VS
68
R110
PC_HS
68
R116
J P 1 0 5
J P 1 0 6
J P 1 0 4
10uF
16V
C10000
READY
0
R142
RT1C3904-T112
Q100
E
B
C
0
R143
RT1C3904-T112
Q101
E
B
C
75
R101
75
R103
75
R102
1K
R134
1K
R135
6800pF
C10001
6800pF
C104
M24C02-RMN6T
I C 1 0 0 - * 1
STM_replace
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
SPG09-DB-010
JK105
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 1
JK106
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
PPJ233-01
JK102
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
P P J 2 3 3 - 0 1
JK101
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
P P J 2 3 4 - 0 1
JK103
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
P P J 2 3 4 - 0 1
JK104
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
PC EDID
AV1
COMPONENT1
PC
**MULTI ITEM
1.24C02-SUB:0IMMRAL014D
2.ENKMC2837-SUB:0DS226009AA
[KDS226]
1.24C02-SUB:0IMMRAL014D
2.ENKMC2837-SUB:0DS226009AA
[KDS226]
POP NOISE
PC SOUND
POP NOISE
COMPONENT1/2, AV1, MNT_OUT
COMPONENT2
MNT_OUT
INPUT-ANALOG/PC
H6 SL90
1 1 2
2 0 0 9 / 0 6 / 0 2
EAX61337301
Mstar LED SL90
Mstar LED SL90
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