LG 72LEX9S-CA (CHASSIS:LC03N) 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.
LEX9_WIRELESS_CN
BCM_RXD1
R6705
2.2K
2.2K
C6702
0.01uF
50V
+3.5V_ST
TP6700
+24V
R6700
0
OPT
C6701
2.2uF
R6709
4.7K
OPT
C6705
0.1uF
R6711
1K
IC6700
MC14053BDR2G
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
R6704
22K
22K
R6710
47K
OPT
R6706
0
0
OPT
R6708
0
OPT
C6700
0.1uF
50V
0.1uF
50V
WIRELESS_TX
WIRELESS_SCL
R6712
10K
TP6701
R6707
0
WIRELESS_DL_RX
+3.3V_NORMAL
+3.5V_ST
IR_PASS
R6701
0
WIRELESS_DETECT
R6702
10K
10K
WIRELESS_RX
R6703
0
OPT
WIRELESS_PWR_EN
Q6700
E
B
C
WIRELESS_SW_CTRL
BCM_RX
BCM_TX
Q6701
AO3407A
G
D
S
WIRELESS_RX
WIRELESS_TX
BCM_TXD1
WIRELESS_DL_TX
WIRELESS_SDA
C6703
10uF
35V
10uF
35V
C6704
10uF
35V
10uF
35V
L6700
MLB-201209-0120P-N2
JK6700
GU043-20P-E1000
14
14
13
13
5
5
12
12
11
11
2
2
19
19
18
18
10
10
4
4
1
1
17
17
9
9
8
8
3
3
16
16
7
7
6
6
15
15
20
20
21
21
RS232C & Wireless
LOW
WIRELESS_SW_CTRL
Wireless power
WIRELESS Dongle connect --> WIRELESS RS232
HIGH
SELECT PIN
WIRELESS Dongle Dis_con --> S7 RS232
X0/Y0/Z0
X1/Y1/Z1
WIRELESS READY MODEL for LEX9
STATUS
67 100
10.01.21
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.
LEX9_LG5111 60Hz LVDS
3D_SYNC_OUT
RRXB3+/RLV1P
RRXACK-/RLV4N
RRXB3-/RLV1N
RRXB0-/RLCLKN
RRXA0+
RRXB1+
RRXA1-
RRXBCK-/RLV2N
RRXA2-/RLV5N
SDA3_3.3V
RRXB2-
R6805
0
R6801
0
RRXA2+/RLV5P
V_SYNC
RRXB4-/RLV0N
RRXB2+
RRXACK+/RLV4P
RRXA4-/RLV3N
R6803
0
SCL3_3.3V
RRXA1+
FRC_RESET
R6804
0
RRXA4+/RLV3P
P6800
TF05-51S
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
RRXBCK+/RLV2P
RRXB1-
RRXB4+/RLV0P
RRXA0-
RRXB0+/RLCLKP
RRXA3-
RRXA3+
R6802
0
R6800
0
L/R_SYNC
R6806
0
M_REMOTE_RX
L/R_SYNC
R6810
0
R6811
0
R6812
0
R6813
0
3D_DIMMING_2
3D_DIMMING_1
R6817
0
R6818
0
PANEL_VCC
L6802
120-ohm
P6803
SMAW250-H04R
1
2
3
4
E_TCK
E_TDO
E_TMS
E_TDI
68 100
10.01.21
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
C7900
100pF
50V
100pF
50V
OPT
R7907
3.3K
OPT
S_CS_N
C7905
100pF
50V
100pF
50V
OPT
C7914
100pF
50V
100pF
50V
OPT
R_VS
M1_MOSI
M3_MOSI
+3.3V_NORMAL
P7900
12507WR-10L
OPT
1
2
3
4
5
6
7
8
9
10
11
M3_MOSI
C7913
100pF
50V
100pF
50V
OPT
M0_MOSI
C7902
100pF
50V
100pF
50V
OPT
C7904
100pF
50V
100pF
50V
OPT
C7909
100pF
50V
100pF
50V
OPT
M3_SCLK
C7912
100pF
50V
100pF
50V
OPT
M0_SCLK
C7908
100pF
50V
100pF
50V
OPT
L_VS
M2_MOSI
C7911
100pF
50V
100pF
50V
OPT
C7903
100pF
50V
100pF
50V
OPT
C7910
100pF
50V
100pF
50V
OPT
C7907
100pF
50V
100pF
50V
OPT
R_VS
R7908
3.3K
OPT
C7901
100pF
50V
100pF
50V
OPT
S_MOSI
S_SCLK
C7906
100pF
50V
100pF
50V
OPT
R7909
3.3K
OPT
M2_SCLK
M1_SCLK
R7904
22
OPT
R7903
22
R7911
22
R7918
22
R7919
22
R7906
22
OPT
R7910
22
R7913
22
R7905
22
OPT
R7902
22
P7901
12507WR-08L
1
2
3
4
5
6
7
8
9
R7915
22
OPT
R7914
22
OPT
R7912
22
OPT
R7916
22
OPT
R7901
22
OPT
R7900
22
OPT
R7920
22
OPT
M3_SCLK
M2_MOSI
GP2_Saturn7M
Interface for LG5111
Ver. 1.0
72
[To MASTER LED DRIVER]
[To SLAVE LED DRIVER]
THERMAL
THERMAL
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.
POWER
BCM (EUROBBTV)
+5V_USB
+3.5V_ST
L8004
3.6uH
3.6uH
NR8040T3R6N
Q8001
2SC3052
2SC3052
E
B
C
PANEL_CTL
1:AK10
C8017
0.1uF
0.1uF
OPT
+5V_USB
+3.3V_NORMAL
POWER_ON/OFF1
R8037
4.7K
4.7K
OPT
Q8003
2SC3052
2SC3052
E
B
C
C8020
22uF
10V
22uF
10V
+12V
R8003
22K
R8019
100
100
C8016
100pF
50V
OPT
C8004
0.1uF
16V
0.1uF
16V
Q8000
2SC3052
2SC3052
E
B
C
INV_CTL
+3.5V_ST
C8018
0.1uF
0.1uF
50V
PWM_DIM
R8004
4.7K
4.7K
R8000
10K
R8008
22K
+3.3V_NORMAL
Q8002
RT1P141C-T112
1
2
3
R8074
100
100
C8007
0.1uF
0.1uF
C8021
1uF
25V
1uF
25V
OPT
R8068
100K
100K
R8012
10K
10K
R8023
6.8K
OPT
C8025
0.1uF
16V
0.1uF
16V
R8067
14K
1%
OPT
L8001
500
0
R8033
L8003
MLB-201209-0120P-N2
R8039
10K
OPT
+12V
R8075
10K
OPT
C8024
68uF
35V
35V
R8001
47K
47K
RL_ON
ERROR_OUT
L8005
MLB-201209-0120P-N2
+24V
R8013
10K
POWER_DET
C8019
100pF
50V
OPT
PANEL_VCC
+3.5V_ST
+12V
R8006
22
22
C8014
1uF
50V
1uF
50V
IC8007
NCP803SN293
1
GND
3
VCC
2
RESET
R8017
6.2K
1%
C8000
100uF
16V
IC8000
MP8706EN-C247-LF-Z
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
+24V
R8002
10K
10K
OPT
R8011 1.8K
L8002
MLB-201209-0120P-N2
R8063
12K
1%
POWER_ON/OFF2_1
C8023
0.1uF
16V
0.1uF
16V
R8032
10K
10K
R8010
10K
+3.5V_ST
C8006
0.1uF
16V
0.1uF
16V
0
R8025
OPT
+12V
R8064
5.1K
1/16W
5%
R8016
33K
1%
Q8005
2SC3052
2SC3052
E
B
C
C8008
0.01uF
25V
POWER_ON/OFF2_1
R8066
3.9K
OPT
L8015
3.6uH
3.6uH
IC8005
AOZ1024DI
1
PGND
2
VIN
3
AGND
4
FB
5
COMP
6
EN
7
LX
+12V
D3.3V
C8064
0.1uF
16V
0.1uF
16V
C8063
0.1uF
16V
0.1uF
16V
+3.3V_NORMAL
L8016
CIC21J501NE
R8069
27K
1%
R8070
4.7K
1%
R8071
10K
1%
POWER_ON/OFF2_2
L8013
CIC21J501NE
R8058
20K
R8026
1K
1K
R8045
0
NON_ESD
C8029
22uF
16V
16V
L8006
MLB-201209-0120P-N2
L8011
BLM18PG121SN1D
R8047
3.9K
OPT
C8045
0.1uF
16V
0.1uF
16V
A1.2V
D1.2V
R8040
100K
C8027
0.1uF
0.1uF
+3.5V_ST
R8043
470K
1%
C8036
0.1uF
0.1uF
C8032
0.1uF
0.1uF
L8009
2uH
R8048
910K
1%
C8026
0.1uF
0.1uF
10
R8041
R8042
0
0
C8035
22uF
22uF
D1.8V
L8012
3.6uH
3.6uH
NR8040T3R6N
R8052
10K
0.1uF
C8050
R8051
6.8K
C8042
0.01uF
25V
+3.5V_ST
C8038
0.01uF
25V
C8031
22uF
22uF
10V
C8044
100pF
50V
OPT
R8057
10K
1%
C8048
22uF
22uF
10V
R8056
10K
10K
1/10W
1%
C8034
0.01uF
25V
L8008
CIC21J501NE
C8001
100uF
25V
C8003
0.1uF
0.1uF
50V
C8005
0.1uF
50V
0.1uF
50V
C8009
0.1uF
50V
0.1uF
50V
C8010
10uF
25V
25V
OPT
C8022
0.1uF
50V
0.1uF
50V
C8052
22uF
25V
25V
C8051
0.1uF
0.1uF
50V
C8002
10uF
25V
10uF
25V
R8081
100
100
R8079
100K
100K
IC8008
NCP803SN293
1
GND
3
VCC
2
RESET
R8061
24K
24K
1%
POWER 20V
R8061-*1
24K
24K
1%
POWER 24V
R8062
5.1K
5.1K
5%
POWER 20V
R8062-*1
4.3K
4.3K
1%
POWER 24V
+3.5V_ST
R8080
14K
1%
OPT
IC8002
MP2108DQ
3
LX
2
VIN
4
PGND
1
BST
5
SGND
6
SS
7
FB
8
COMP
9
VREF
10
RUN
IC8001
MP2208DL-LF-Z
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
C8065
0.1uF
16V
0.1uF
16V
ESD
C8039
3300pF
50V
C8041
22uF
10V
22uF
10V
C8037
22uF
10V
10V
C8057
22uF
10V
10V
C8059
22uF
10V
22uF
10V
C8033
1uF
10V
1uF
10V
R8060
10K
R8044
10K
C8067
10uF
10V
10uF
10V
C8054
2200pF
2200pF
50V
D8000
5.6V
ESD
R8045-*1
100K
100K
ESD
C8069
0.1uF
0.1uF
OPT
R8061-*2
22K
22K
1%
POWER 18.5V
R8062-*2
4.7K 1%
4.7K 1%
POWER 18.5V
C8043
10uF
16V
16V
R8046
30K
1%
C8013
10uF
10uF
25V
L8000
MLB-201209-0120P-N2
R8050
10K
C8047
22uF
10V
22uF
10V
POWER_ON/OFF2_2
L8007
CIC21J501NE
C8046
100pF
50V
OPT
C8066
22uF
10V
22uF
10V
R8055
10K
1%
C8040
2200pF
R8054
5.6K
1%
L8019
CIC21J501NE
C8072
0.1uF
16V
0.1uF
16V
C8073
22uF
10V
22uF
10V
C8068
0.1uF
16V
0.1uF
16V
L8010
3.6uH
3.6uH
NR8040T3R6N
IC8003
AOZ1072AI
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
C8049
0.1uF
16V
0.1uF
16V
C8028
10uF
25V
10uF
25V
R8053
47K
1%
R8049
12K
+5V_NORMAL
C8030
10uF
25V
10uF
25V
C8071
22uF
10V
22uF
10V
+12V
C8058
10uF
16V
R8073-*1
4.7K
1%
4.7K
1%
BCD
C8061
10uF
16V
0.1uF
C8055
R8087
10K
10K
BCD
R8073
18K
1%
18K
1%
SEMTEK
IC8004
AP2132MP-2.5TRG1
BCD
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
L8017
500
0.1uF
C8056
OPT
0.1uF
C8062
R8059
10K SEMTEK
10K SEMTEK
L8014
500
R8072
39K
1%
39K
1%
SEMTEK
+5V_NORMAL
A2.5V
0.1uF
C8070
OPT
L8018
500
BCD
R8086
10K
10K
BCD
IC8004-*1
SC4215ISTRT
SEMTEK
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
C8053
10uF
16V
+3.3V_NORMAL
R8072-*1
15K
1%
15K
1%
BCD
Q8004
AO4813
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
C8015
1uF
25V
OPT
25V
OPT
P8001
SMAW200-H24S2
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
0
R8024
OPT
0
R8020
0
R8021
15
<OS MODULE PIN MAP>
PIN No
INV_ON
Vout=(1+R1/R2)*0.8
R2
3A
ST_3.5V-->3.5V
INV_ON
INV_ON
INV_ON
+5V_USB
Err_out
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
V5:NC
SHARP
Err_out
CMO(09)
PWM_DIM
PWM_DIM
PWM_DIM
GND
20
A-DIM
R1
MAX 1500mA
A-DIM
Err_out
24
Max 1100 mA
12V-->3.58V
LGD
+3.3V_NORMAL
MAX 3.1A
MAX 2.3A
Vout=0.8*(1+R1/R2)
R1
R2
BCM core 1.2V volt
Placed on SMD-TOP
Vout=0.9*(1+R1/R2)
Replaced Part
R1
C IN
3A
Placed on SMD-TOP
R2
BCM DDR 1.8V
not to RESET at 8kV ESD
R2
+5V_NORMAL
Vout=0.8*(1+R1/R2)
R1
2A
MAX 350mA
BCD VOUT : 2.514V
A2.5V
BCD:Vout=0.6*(1+R1/R2)
R2
R1
SEMTEK:Vout=0.8*(1+R1/R2)
SEMTEK VOUT : 2.533V
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