LG 42LX6500-UB (CHASSIS:LA02R) 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.
2.7K
OPT
R2408
MLB-201209-0120P-N2
120-ohm
OPT
L2401
0
OPT
R2406
0
3DTV
R2404
10uF
10V
10V
3DTV
C2404
USB_PWRON3
0 0 9 : D 4 ; 0 0 9 : G 4
+5V_USB
100uF
16V
16V
3DTV
C2403
4.7K
OPT
R2407
MLB-201209-0120P-N2
120-ohm
3DTV
L2402
USB_PWRFLT3
0 0 9 : D 3 ; 0 0 9 : G 4
0 . 1 u F
3DTV
C2405
3D_SYNC_OUT
0 7 8 : T 9
AP2191SG-13
EAN60921001
IC2401
OPT
3 IN_2
2 IN_1
4 EN
1 GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
+3.3V_NORMAL
5.5V
3DTV
D2403
USB DOWN STREAM
KJA-UB-4-0004
EAG41945401
JK2400
O u t e r _ E m i t t e r
1
2
3
4
5
+ 5 V _ E m i t t e r
+ 5 V _ E m i t t e r
12507WR-03L
P2401
I n n e r _ E m i t t e r
1
2
3
4
+ 5 V _ E m i t t e r
0
I n n e r _ E m i t t e r
R2401
3D_SYNC
3D_SYNC
3D_SYNC
120-ohm
I n n e r _ E m i t t e r
L2403
10pF
50V
50V
3DTV
C2401
S I D E I R E m i t t e r s y n c U S B J A C K
0 9 / 1 1 / 1 8
3D_IR_GENDER
GP2_BCM_ATSC
2 4 1 0 0
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.
PANEL_VCC
RRXB3+/RLV1P
RRXA1+
0
TM480Hz
R7803
RRXB2-
RRXB4+/RLV0P
RRXA2+/RLV5P
RRXA0+
RRXA4-/RLV3N
RRXBCK+/RLV2P
RRXB3-/RLV1N
RRXA1-
RRXB2+
0
TM480Hz
R7800
1000pF
50V
50V
TM480Hz
C7801
RRXA0-
TF05-51S
TM480Hz
P7800
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
RRXACK+/RLV4P
V_SYNC
RRXA3+
RRXB0-/RLCLKN
RRXB0+/RLCLKP
RRXA3-
SCL3_3.3V
RRXBCK-/RLV2N
RRXB1-
0
TM480Hz
R7802
RRXA4+/RLV3P
RRXB1+
RRXB4-/RLV0N
RRXACK-/RLV4N
RRXA2-/RLV5N
0
TM480Hz
R7801
FRC_RESET
10uF
25V
25V
OPT
C7800
0 . 1 u F
50V
50V
TM480Hz
C7802
12507WR-04L
P7801
OPT
1
2
3
4
5
0
R7806
OPT
0
R7804
OPT
0
R7805
OPT
SDA3_3.3V
V_SYNC
SCL3_3.3V
3D_SYNC_OUT
0
3DTV
R7807
0
3DTV
R7808
L/R_SYNC
0
R7810
3D_DIM2
SDA3_3.3V
0
R7809
3D_DIM
12507WR-06L
P7803
1
2
3
4
5
6
7
12507WR-04L
P7802
1
2
3
4
5
PANEL_VCC
E_TMS
E_TCK
E_TDO
E_TDI
0
R7811
0
R7812
0
R7813
0
R7814
3D_DIMMING_2
3D_DIMMING
120-ohm
TM480Hz
L7800
120-ohm
L7801
[ 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 )
I2C_#3 Check(LG5111,LG1120,etc)
0 9 / 1 0 / x x
LG5111 60Hz LVDS
7 8 1 0 0
COMMON
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.
M2_SCLK
3.3K
Edge
R7907
12507WR-08L
IOP&Edge(55")
P7901
1
2
3
4
5
6
7
8
9
S_CS_N
R_VS
M1_MOSI
M2_SCLK
+3.3V_NORMAL
12507WR-10L
IOP
P7900
1
2
3
4
5
6
7
8
9
10
11
M3_MOSI
M0_MOSI
M3_SCLK
M0_SCLK
L_VS
M2_MOSI
R_VS
3.3K
Edge
R7908
S_MOSI
S_SCLK
3.3K
Edge
R7909
M2_MOSI
M1_SCLK
22
E d g e ( 5 5 " )
R7916
22
OPT
R7900
22
E d g e ( 5 5 " )
R7917
22
E d g e ( 5 5 " )
R7901
22
IOP
R7904
22
IOP
R7903
22
IOP
R7911
22
E d g e ( 5 5 " )
R7915
22
IOP
R7918
22
E d g e ( 5 5 " )
R7914
22
IOP
R7919
22
IOP
R7906
22
E d g e ( 5 5 " )
R7912
22
IOP
R7910
22
IOP
R7913
22
IOP
R7905
22
IOP
R7902
33pF
50V
50V
OPT
C7910
33pF
50V
50V
OPT
C7902
33pF
50V
50V
C7909
OPT
33pF
50V
50V
OPT
C7904
33pF
50V
50V
C7911
OPT
33pF
50V
50V
C7914
OPT
33pF
50V
50V
OPT
C7908
33pF
50V
50V
C7905
OPT
33pF
50V
50V
C7913
OPT
33pF
50V
50V
OPT
C7906
33pF
50V
50V
OPT
C7900
33pF
50V
50V
C7907
OPT
33pF
50V
50V
C7903
OPT
33pF
50V
50V
C7901
OPT
33pF
50V
50V
OPT
C7912
GP2_Saturn7M
I n t e r f a c e f o r L G 5 1 1 1
V e r . 1 . 0
72
[To MASTER LED DRIVER]
[To SLAVE LED DRIVER]
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.
+3.5V_ST
100
POWER_24_INV_CTL
R8018
NR8040T3R6N
3.6uH
L8004
0
POWER_22_HD_OPC
R8035
2SC3052
Q8001
E
B
C
0
POWER_22_A_DIM
R8030
PANEL_CTL
081:A2
0 . 1 u F
OPT
OPT
C8017
+5V_USB
+3.3V_NORMAL
0
POWER_20_PWM_DIM
R8027
0
POWER_20_A_DIM
R8031
POWER_ON/OFF1
4.7K
R8037
OPT
2SC3052
Q8003
E
B
C
+12V
FW20020-24S
NORMAL_26~55
P8000
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
22K
R8003
100
POWER_18_INV_CTL
R8019
100pF
50V
OPT
C8016
0 . 1 u F
16V
16V
C8004
1uF
25V
25V
C8015
OPT
2SC3052
Q8000
E
B
C
INV_CTL
+3.5V_ST
0 . 1 u F
50V
C8018
0
POWER_23_SCAN_BLK2
R8009
PWM_DIM
4.7K
R8004
10K
R8000
0
POWER_22_PWM_DIM
R8020
22K
R8008
+3.3V_NORMAL
RT1P141C-T112
Q8002
1
2
3
100
R8074
0
POWER_24_PWM_DIM
R8021
0 . 1 u F
C8007
1uF
25V
25V
OPT
C8021
OPC_OUT
100K
R8068
10K
R8012
6.8K
OPT
R8023
0 . 1 u F
16V
16V
C8025
SCAN_BLK1/OPC_OUT
L8001
0
NON_OPC/NON_IOP
R8033
0
POWER_18_A_DIM
R8029
MLB-201209-0120P-N2
L8003
1uF
25V
OPT
C8012
10K
OPT
OPT
R8039
+12V
10K
OPT
R8075
68uF
35V
C8024
+3.5V_ST
0
POWER_SCAN1/FHD_OPC
R8034
A_DIM
10K
OPT
R8038
47K
R8001
RL_ON
ERROR_OUT
MLB-201209-0120P-N2
L8005
+24V
10K
R8013
POWER_DET
100pF
50V
OPT
C8019
PANEL_VCC
+3.5V_ST
0
POWER_20_ERROR_OUT
R8024
+12V
22
R8006
1uF
50V
50V
C8014
NCP803SN293
EAN60670101
IC8007
1
GND
3
VCC
2
RESET
SCAN_BLK2
0
POWER_16_GND
R8015
6.2K
1%
R8017
100uF
16V
C8000
MP8706EN-C247-LF-Z
EAN31346002
IC8000
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
0.1uF
16V
OPT
C8011
+24V
V_SYNC
10K
OPT
R8002
R8002
1.8K
R8011
MLB-201209-0120P-N2
L8002
12K
1%
PD_+12V
R8063
POWER_ON/OFF2_1
0 . 1 u F
16V
16V
C8023
10K
R8032
10K
R8010
+3.5V_ST
0 . 1 u F
16V
16V
C8006
0
POWER_24_ERROR_OUT
R8025
+12V
1/16W
5.1K
5%
NON_PD_+3.5V
R8064
33K
1%
R8016
2SC3052
Q8005
E
B
C
0 . 0 1 u F
25V
C8008
POWER_ON/OFF2_1
0
OPT
R8036
0
OPT
R8028
0
OPT
R8005
L_VS
M0_MOSI
M0_SCLK
1K
R8026
0
R8045
22uF
16V
16V
C8029
MLB-201209-0120P-N2
L8006
BLM18PG121SN1D
L8011
3.9K
R8047
OPT
0 . 1 u F
16V
C8045
A1.2V
D1.2V
100K
R8040
0 . 1 u F
C8027
+3.5V_ST
470K
1%
R8043
0 . 1 u F
C8036
0 . 1 u F
C8032
2uH
L8009
910K
1%
1%
R8048
0 . 1 u F
C8026
10
R8041
0
R8042
22uF
C8035
D1.8V
NR8040T3R6N
3.6uH
L8012
10K
R8052
0 . 1 u F
C8050
6.8K
R8051
0 . 0 1 u F
25V
25V
C8042
+3.5V_ST
0 . 0 1 u F
25V
25V
C8038
100pF
50V
OPT
C8044
10K
1%
R8057
1/10W
10K
1%
R8056
0.01uF
25V
C8034
CIC21J501NE
L8008
0
POWER_23_GND
R8007
0
POWER_24_GND
R8014
0
POWER_23_42/47_LOCAL_DIM
R8076
M2_MOSI
R_VS
0
POWER_16_42/47_LOCAL_DIM
R8078
M2_SCLK
0
POWER_20_42/47_LOCAL_DIM
R8077
L_VS
R_VS
R_VS
M2_SCLK
M0_SCLK
M2_MOSI
M0_MOSI
100uF
25V
C8001
0 . 1 u F
50V
C8003
0 . 1 u F
50V
C8005
0 . 1 u F
50V
50V
C8009
10uF
25V
OPT
25V
OPT
C8010
0 . 1 u F
50V
50V
C8022
10uF
25V
25V
C8002
100
R8081
100K
R8079
NCP803SN293
IC8008
1
GND
3
VCC
2
RESET
24K
1%
R8061
POWER 20V
24K
1%
POWER 24V
R8061-*1
5.1K
5%
R8062
POWER 20V
4.3K
1%
POWER 24V
R8062-*1
+3.5V_ST
14K
1%
OPT
R8080
MP2108DQ
EAN60991601
IC8002
DEV
3
LX
2
VIN
4
PGND
1
BST
5
SGND
6
SS
7
FB
8
COMP
9
VREF
10
RUN
SMAW200-H24S2
SLIM_32~55
P8001
19
12V
14
GND
9
3.5V
4
24V
18
INV ON
13
GND
8
GND
3
24V
17
12V
12
3.5V
7
GND
2
24V
16
GND/V-sync
11
3.5V
6
GND
1
PWR ON
20
A.DIM
15
GND
10
3.5V
5
GND
21
12V
22
P.DIM1
23
GND/P.DIM2
24
Err OUT
25
AO3407A
Q8004
G
D
S
0 . 1 u F
16V
16V
C8065
SC4215ISTRT
0IPMGS1010A
IC8004
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
0 . 1 u F
C8062
0 . 1 u F
OPT
C8056
+3.3V_NORMAL
10K
R8059
500
L8017
A2.5V
39K
1%
1%
R8072
18K
1%
1%
R8073
0 . 1 u F
C8055
500
L8014
10uF
16V
C8053
10uF
16V
C8058
10uF
16V
C8061
0
R8082
POWER_16_V_SYNC
1uF
10V
10V
C8033
3300pF
50V
C8039
DEV
10K
R8044
0
POWER_22_SCAN_BLK2
R8065
SCAN_BLK2
0
POWER_20_SCAN_BLK1
R8022
30K
1%
R8046
CIC21J501NE
L8007
10K
1%
R8055
10K
R8050
+5V_NORMAL
0 . 1 u F
16V
16V
C8049
POWER_ON/OFF2_2
10uF
25V
25V
C8028
NR8040T3R6N
3.6uH
L8010
10uF
25V
25V
C8030
+12V
12K
R8049
100pF
50V
OPT
C8046
0 . 1 u F
C8067
AOZ1072AI
EAN60922901
IC8003
DEV
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
2200pF
C8040
D3.3V
22uF
25V
25V
C8052
10K
1%
R8071
+3.3V_NORMAL
+12V
3.9K
R8066
OPT
CIC21J501NE
L8016
20K
R8058
4.7K
1%
R8070
50V
OPT
C8069
AOZ1024DI
EAN60660601
IC8005
1
PGND
2
VIN
3
AGND
4
FB
5
COMP
6
EN
7
LX
POWER_ON/OFF2_2
0 . 1 u F
50V
C8051
27K
1%
R8069
CIC21J501NE
L8013
0 . 1 u F
16V
16V
C8064
0 . 1 u F
16V
16V
C8063
3300pF
50V
C8054
3.6uH
L8015
10K
R8060
27K
1%
PD_+3.5V
R8064-*1
1K
1%
PD_+3.5V
R8067
4.7K 1%
POWER 18.5V
R8062-*2
22K
1%
POWER 18.5V
R8061-*2
+3.5V_ST
0 . 1 u F
16V
16V
C8070
0 . 1 u F
16V
16V
C8072
0 . 1 u F
16V
16V
C8074
0 . 1 u F
16V
16V
C8073
0 . 1 u F
16V
16V
C8075
0 . 1 u F
16V
16V
C8071
22uF
16V
16V
C8020
22uF
16V
16V
C8031
22uF
16V
C8037
22uF
16V
C8041
22uF
16V
C8043
22uF
16V
16V
C8047
22uF
16V
C8048
22uF
16V
C8057
22uF
16V
C8059
22uF
16V
16V
C8066
THERMAL
MP2208DL-LF-Z
EAN60911601
IC8001
3
PGND_1
2
SS
4
SW_1
1
AGND
6
NC
5
IN_1
7
BS
8
VCC
9
POK
10
IN_2
11
SW_2
12
PGND_2
13
EN/SYNC
14
FB
15
EP
10uF
25V
C8060
51K
1%
R8053
3.9K
1%
R8054
MLB-201209-0120P-N2
L8000
10uF
25V
C8013
+5V_USB
<OS MODULE PIN MAP>
PIN No
INV_ON
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
R2
3A
S T _ 3 . 5 V - - > 3 . 5 V
INV_ON
INV_ON
INV_ON
+5V_USB
E r r _ o u t
20V-->3.5V
Power_DET
15V-->3.6V
PANEL_POWER
22
NC
PWM_DIM
24V-->3.48V
FROM LIPS & POWER B/D
AUO
18
V4:VBR-A
V5:NC
SHARP
E r r _ o u t
CMO(09)
PWM_DIM
PWM_DIM
PWM_DIM
GND
20
A-DIM
R1
MAX 1500mA
A-DIM
E r r _ o u t
24
Max 1100 mA
12V-->3.58V
LGD
MAX 3.1A
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R1
R2
B C M c o r e 1 . 2 V v o l t
Placed on SMD-TOP
Vout=0.9*(1+R1/R2)
R e p l a c e d P a r t
R1
C IN
3A
Placed on SMD-TOP
R2
BCM DDR 1.8V
A2.5V
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R1
R2
VOUT : 2.533V
F o r R E S E T a t 8 k V E S D
# 1 6 / # 2 0 / # 2 3
LD - GND OR USE
LE(N.L.D.) - OPEN
LE(N.L.D.) - OPEN
L E ( L . D . ) - U S E
CHECK PWR/MODULE PIN MAP
LED:GND
2A
R1
+5V_NORMAL
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
MAX 350mA
R2
MAX 2.3A
+3.3V_NORMAL
0 9 / 1 0 / x x
POWER
8 0 1 0 0
COMMON
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