DOWNLOAD LG 42SL80YD-AA (CHASSIS:LB91T) Service Manual ↓ Size: 4.75 MB | Pages: 66 in PDF or view online for FREE

Model
42SL80YD-AA (CHASSIS:LB91T)
Pages
66
Size
4.75 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42sl80yd-aa-chassis-lb91t.pdf
Date
PREV: LG 42SL9000-ZA / 42SL9500-ZB (CHASSIS:LD91L) Service Manual

LG 42SL80YD-AA (CHASSIS:LB91T) 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.
URSA_A[11]
URSA_DQ[22]
URSA_DQ[28]
DDRB_A[10]
DDRA_A[8]
DDRB_A[3]
URSA_DQ[30]
DDRA_A[1]
URSA_DQ[21]
DDRA_A[4]
URSA_A[4]
DDRA_A[5]
DDRA_A[12]
URSA_DQ[18]
DDRA_A[10]
DDRA_A[7]
DDR_DQ[1]
DDR_DQ[17]
DDRA_A[2]
DDR_DQ[8]
DDR_DQ[18]
DDR_DQ[14]
URSA_A[6]
URSA_DQ[6]
DDRB_A[1]
DDR_DQ[13]
DDR_DQ[19]
DDR_DQ[11]
DDRA_A[1]
URSA_DQ[0]
DDRB_A[0]
DDR_DQ[18]
DDRB_A[0]
DDRB_A[9]
DDR_DQ[6]
DDR_DQ[5]
DDR_DQ[10]
DDR_DQ[22]
DDRB_A[5]
DDRA_A[0]
DDR_DQ[7]
URSA_DQ[8]
DDR_DQ[1]
DDR_DQ[20]
DDR_DQ[16]
DDR_DQ[11]
URSA_A[10]
URSA_A[10]
DDRB_A[12]
DDRB_A[7]
URSA_A[1]
DDRB_A[4]
DDR_DQ[8]
DDR_DQ[23]
DDRB_A[1]
URSA_A[7]
DDR_DQ[0-15]
DDR_DQ[7]
URSA_A[0]
URSA_A[9]
DDR_DQ[13]
DDRB_A[2]
URSA_A[8]
URSA_A[0]
URSA_A[7]
DDR_DQ[15]
DDRA_A[9]
DDR_DQ[9]
DDR_DQ[30]
DDRB_A[2]
DDRA_A[11]
DDR_DQ[21]
DDR_DQ[3]
DDRA_A[5]
URSA_A[12]
DDR_DQ[9]
DDRB_A[7]
URSA_DQ[10]
URSA_DQ[15]
URSA_A[5]
DDRB_A[3]
DDRA_A[2]
DDR_DQ[24]
DDR_DQ[26]
DDR_DQ[31]
DDR_DQ[5]
DDR_DQ[19]
URSA_A[8]
DDRB_A[6]
URSA_A[4]
DDR_DQ[25]
URSA_DQ[3]
URSA_A[6]
DDRB_A[5]
DDR_DQ[29]
URSA_A[1]
DDR_DQ[28]
DDR_DQ[27]
DDRA_A[3]
DDR_DQ[24]
DDRA_A[9]
URSA_A[11]
DDRB_A[8]
URSA_A[5]
URSA_A[2]
DDR_DQ[27]
DDR_DQ[3]
DDRA_A[12]
DDR_DQ[6]
DDRA_A[8]
DDR_DQ[26]
DDR_DQ[20]
DDR_DQ[29]
DDR_DQ[30]
URSA_DQ[7]
DDR_DQ[14]
DDR_DQ[0]
DDRA_A[4]
DDRA_A[10]
DDR_DQ[12]
DDR_DQ[10]
DDR_DQ[4]
DDRB_A[0-12]
DDR_DQ[22]
URSA_A[3]
DDR_DQ[0]
DDR_DQ[25]
DDR_DQ[16]
DDR_DQ[31]
DDR_DQ[4]
DDR_DQ[23]
URSA_DQ[17]
DDR_DQ[28]
DDRA_A[11]
DDR_DQ[21]
URSA_DQ[12]
URSA_DQ[5]
DDR_DQ[2]
URSA_DQ[24]
DDR_DQ[17]
URSA_DQ[13]
DDRA_A[7]
URSA_DQ[1]
URSA_DQ[14]
URSA_DQ[20]
DDRB_A[4]
DDRB_A[10]
URSA_DQ[19]
URSA_DQ[11]
URSA_DQ[9]
URSA_A[2]
DDRB_A[12]
URSA_DQ[31]
DDRB_A[8]
DDRB_A[6]
DDR_DQ[2]
URSA_DQ[26]
DDRA_A[0-12]
DDRA_A[6]
DDRA_A[3]
DDR_DQ[16-31]
URSA_DQ[27]
DDRA_A[6]
URSA_A[9]
URSA_DQ[16]
DDRA_A[0]
DDR_DQ[12]
URSA_A[3]
URSA_DQ[29]
URSA_DQ[4]
DDRB_A[11]
URSA_DQ[23]
URSA_DQ[25]
URSA_DQ[2]
DDR_DQ[15]
DDRB_A[11]
URSA_A[12]
DDRB_A[9]
C1028
0.1uF
URSA_CASZ
C1007
0.1uF
B_URSA_MCLKE
010:Q15
URSA_MCLK
009:I11
C1044
0.1uF
C1005
10uF
10V
URSA_MCLKZ1
009:AA4
C1040
0.1uF
B_URSA_CASZ
010:R16
C1012
1000pF
C1014
0.1uF
C1024
0.1uF
A_URSA_WEZ
010:X14
L1001
BLM18PG121SN1D
URSA_BA0
009:R4;010:T10
C1006
10uF
C1018
0.1uF
URSA_CASZ
URSA_WEZ
009:Q4;010:U10
C1027
10uF
AR1018
56
B_URSA_RASZ
C1043
0.1uF
C1041
0.1uF
AR1016
56
URSA_DQS3
009:I13
URSA_DQS2
009:I14
AR1017
56
C1042
0.1uF
URSA_DQSB3
009:I13
A_URSA_BA1
URSA_BA1
009:R4;010:U11
URSA_MCLKE
009:T4;010:U11
B_URSA_BA1
URSA_DQS1
009:X4
URSA_MCLKE
009:T4;010:T9
C1036
1000pF
C1045
0.1uF
URSA_DQ[0-31]
C1002
0.1uF
A_URSA_WEZ
010:U9
URSA_DQM3
009:I15
C1023
0.1uF
C1001
0.1uF
URSA_RASZ
+1.8V_FRC_DDR
R1022
1K
1%
C1032
10uF
C1037
0.1uF
+1.8V_MEMC
AR1014
22
URSA_WEZ
009:Q4;010:T9
B_URSA_WEZ
010:Q14
B_URSA_MCLKE
010:T11
C1017
10uF
URSA_DQM2
009:I15
+1.8V_FRC_DDR
URSA_DQ[0-31]
AR1013
22
C1013
0.1uF
B_URSA_BA0
C1026
10uF
10V
URSA_BA1
009:R4;010:T10
B_URSA_BA1
A_URSA_MCLKE
010:Z15
A_URSA_BA0
+1.8V_FRC_DDR
+1.8V_FRC_DDR
URSA_ODT
009:I10;010:X14
URSA_MCLKZ
009:I10
C1021
0.1uF
A_URSA_RASZ
URSA_DQSB0
009:W4
AR1008
22
C1003
0.1uF
AR1015
56
C1010
0.1uF
C1020
0.1uF
AR1011
22
+1.8V_FRC_DDR
URSA_DQS0
009:W4
AR1009
22
AR1012
22
R1024
1K
1%
C1030
0.1uF
A_URSA_RASZ
010:X17
C1008
0.1uF
C1025
0.1uF
AR1007
22
URSA_DQM0
009:W4
C1004
0.1uF
B_URSA_WEZ
010:T10
URSA_DQSB2
009:I14
C1039
0.1uF
R1073
1K
1%
AR1006
22
C1033
0.1uF
C1034
0.1uF
URSA_BA0
009:R4;010:U11
A_URSA_MCLKE
010:U9
A_URSA_BA1
010:AA16
C1022
0.1uF
B_URSA_CASZ
AR1005
22
+1.8V_FRC_DDR
URSA_A[0-12]
URSA_DQM1
009:W4
C1019
0.1uF
A_URSA_CASZ
+1.8V_FRC_DDR
C1031
0.1uF
AR1004
56
AR1010
22
B_URSA_RASZ
010:R17
AR1002
56
URSA_DQSB1
009:X4
B_URSA_BA0
R1071
1K
1%
AR1003
56
C1038
0.1uF
URSA_RASZ
C1011
0.1uF
C1035
0.1uF
+1.8V_FRC_DDR
C1029
0.1uF
+1.8V_FRC_DDR
AR1001
56
URSA_MCLK1
009:AA4
C1015
0.1uF
A_URSA_BA0
010:AA16
URSA_ODT
009:I10;010:Q14
C1009
0.1uF
C1016
0.1uF
A_URSA_CASZ
010:X16
R1027
22
R1025
22
R1026
22
R1063
22
R1062
22
R1061
22
R1029
56
R1069
56
R1064
56
R1067
56
R1033
56
R1032
56
R1030
56
R1065
56
R1068
56
R1066
56
R1028
56
R1031
56
R1018
150
OPT
R1078
150
OPT
IC1001
HYB18TC512160CF-2.5
URSA_DDR_QIMONDA
J2
VREF
J8
CK
H2
VSSQ2
B7
UDQS
N8
A4
P8
A8
L1
NC4
L2
BA0
R8
NC3
K7
RAS
F8
VSSQ3
F3
LDM
P3
A9
M3
A1
N3
A5
K8
CK
R3
NC5
L3
BA1
J7
VSSDL
L7
CAS
F2
VSSQ4
B3
UDM
M2
A10/AP
K2
CKE
R7
NC6
M7
A2
N7
A6
M8
A0
J1
VDDL
K3
WE
E8
LDQS
P7
A11
K9
ODT
A2
NC1
N2
A3
P2
A7
H8
VSSQ1
F7
LDQS
A8
UDQS
R2
A12
L8
CS
E2
NC2
E7
VSSQ5
D8
VSSQ6
D2
VSSQ7
A7
VSSQ8
B8
VSSQ9
B2
VSSQ10
P9
VSS1
N1
VSS2
J3
VSS3
E3
VSS4
A3
VSS5
G9
VDDQ1
G7
VDDQ2
G3
VDDQ3
G1
VDDQ4
E9
VDDQ5
C9
VDDQ6
C7
VDDQ7
C3
VDDQ8
C1
VDDQ9
A9
VDDQ10
R1
VDD1
M9
VDD2
J9
VDD3
E1
VDD4
A1
VDD5
B9
DQ15
B1
DQ14
D9
DQ13
D1
DQ12
D3
DQ11
D7
DQ10
C2
DQ9
C8
DQ8
F9
DQ7
F1
DQ6
H9
DQ5
H1
DQ4
H3
DQ3
H7
DQ2
G2
DQ1
G8
DQ0
IC1002
HYB18TC512160CF-2.5
URSA_DDR_QIMONDA
J2
VREF
J8
CK
H2
VSSQ2
B7
UDQS
N8
A4
P8
A8
L1
NC4
L2
BA0
R8
NC3
K7
RAS
F8
VSSQ3
F3
LDM
P3
A9
M3
A1
N3
A5
K8
CK
R3
NC5
L3
BA1
J7
VSSDL
L7
CAS
F2
VSSQ4
B3
UDM
M2
A10/AP
K2
CKE
R7
NC6
M7
A2
N7
A6
M8
A0
J1
VDDL
K3
WE
E8
LDQS
P7
A11
K9
ODT
A2
NC1
N2
A3
P2
A7
H8
VSSQ1
F7
LDQS
A8
UDQS
R2
A12
L8
CS
E2
NC2
E7
VSSQ5
D8
VSSQ6
D2
VSSQ7
A7
VSSQ8
B8
VSSQ9
B2
VSSQ10
P9
VSS1
N1
VSS2
J3
VSS3
E3
VSS4
A3
VSS5
G9
VDDQ1
G7
VDDQ2
G3
VDDQ3
G1
VDDQ4
E9
VDDQ5
C9
VDDQ6
C7
VDDQ7
C3
VDDQ8
C1
VDDQ9
A9
VDDQ10
R1
VDD1
M9
VDD2
J9
VDD3
E1
VDD4
A1
VDD5
B9
DQ15
B1
DQ14
D9
DQ13
D1
DQ12
D3
DQ11
D7
DQ10
C2
DQ9
C8
DQ8
F9
DQ7
F1
DQ6
H9
DQ5
H1
DQ4
H3
DQ3
H7
DQ2
G2
DQ1
G8
DQ0
IC1002-*1
H5PS5162FFR-S6C
URSA_DDR_HYNIX
J2
VREF
J8
CK
H2
VSSQ2
B7
UDQS
N8
A4
P8
A8
L1
NC4
L2
BA0
R8
NC3
K7
RAS
F8
VSSQ3
F3
LDM
P3
A9
M3
A1
N3
A5
K8
CK
R3
NC5
L3
BA1
J7
VSSDL
L7
CAS
F2
VSSQ4
B3
UDM
M2
A10/AP
K2
CKE
R7
NC6
M7
A2
N7
A6
M8
A0
J1
VDDL
K3
WE
E8
LDQS
P7
A11
K9
ODT
A2
NC1
N2
A3
P2
A7
H8
VSSQ1
F7
LDQS
A8
UDQS
R2
A12
L8
CS
E2
NC2
E7
VSSQ5
D8
VSSQ6
D2
VSSQ7
A7
VSSQ8
B8
VSSQ9
B2
VSSQ10
P9
VSS1
N1
VSS2
J3
VSS3
E3
VSS4
A3
VSS5
G9
VDDQ1
G7
VDDQ2
G3
VDDQ3
G1
VDDQ4
E9
VDDQ5
C9
VDDQ6
C7
VDDQ7
C3
VDDQ8
C1
VDDQ9
A9
VDDQ10
R1
VDD1
M9
VDD2
J9
VDD3
E1
VDD4
A1
VDD5
B9
DQ15
B1
DQ14
D9
DQ13
D1
DQ12
D3
DQ11
D7
DQ10
C2
DQ9
C8
DQ8
F9
DQ7
F1
DQ6
H9
DQ5
H1
DQ4
H3
DQ3
H7
DQ2
G2
DQ1
G8
DQ0
IC1001-*1
H5PS5162FFR-S6C
URSA_DDR_HYNIX
J2
VREF
J8
CK
H2
VSSQ2
B7
UDQS
N8
A4
P8
A8
L1
NC4
L2
BA0
R8
NC3
K7
RAS
F8
VSSQ3
F3
LDM
P3
A9
M3
A1
N3
A5
K8
CK
R3
NC5
L3
BA1
J7
VSSDL
L7
CAS
F2
VSSQ4
B3
UDM
M2
A10/AP
K2
CKE
R7
NC6
M7
A2
N7
A6
M8
A0
J1
VDDL
K3
WE
E8
LDQS
P7
A11
K9
ODT
A2
NC1
N2
A3
P2
A7
H8
VSSQ1
F7
LDQS
A8
UDQS
R2
A12
L8
CS
E2
NC2
E7
VSSQ5
D8
VSSQ6
D2
VSSQ7
A7
VSSQ8
B8
VSSQ9
B2
VSSQ10
P9
VSS1
N1
VSS2
J3
VSS3
E3
VSS4
A3
VSS5
G9
VDDQ1
G7
VDDQ2
G3
VDDQ3
G1
VDDQ4
E9
VDDQ5
C9
VDDQ6
C7
VDDQ7
C3
VDDQ8
C1
VDDQ9
A9
VDDQ10
R1
VDD1
M9
VDD2
J9
VDD3
E1
VDD4
A1
VDD5
B9
DQ15
B1
DQ14
D9
DQ13
D1
DQ12
D3
DQ11
D7
DQ10
C2
DQ9
C8
DQ8
F9
DQ7
F1
DQ6
H9
DQ5
H1
DQ4
H3
DQ3
H7
DQ2
G2
DQ1
G8
DQ0
MST7323S DDR2
10
11
EAX61110501(9)SL80
2009.06.22
PI Result
DDR2 1.8V By CAP - Place these Caps near Memory
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.
11_TUNER
C1168
0.1uF
16V
FE_SIF
002:T17
TUNER_SIF_IF_N
011:A22
+1.8V_TU_CE
R1154
33
C1115
0.1uF
+3.3V_TUNER
C1167
0.1uF
16V
IF_AGC
C1138
0.1uF
16V
/DEMOD_RESET
R1147
4.7K
R
1
1
2
2
0
+1.8V_TU_XE
FE_TS_SERIAL
001:AJ17
R1152
10K
OPT
C1145
18pF
50V
R1179
1K
R1175
1K
R1117
680
C1179
0.1uF
16V
C1172
0.1uF
16V
C1163
0.1uF
16V
C1106
56pF
C1169
0.1uF
16V
C1174
0.1uF
16V
+1.8V_TUNER
C1104
0.1uF
FE_TS_DATA_CLK
C1124
0.1uF
16V
+3.3V_TU_XE
R1150
10K
FE_TS_SYN
001:AJ18
C1122
0.1uF
16V
C1112
0.1uF
C1173
0.1uF
16V
C1141
0.1uF
16V
+3.3V_TU_CE
C1131
0.1uF
16V
+3.3V_TUNER
C1129
0.1uF
16V
C
1
1
6
2
2
2
p
F
OPT
R
1
1
0
8
3
9
0
IF_AGC
+1.8V_TU_CE
+5V_TUNER_IF
DTV_IF_P
TUNER_CVBS_IF_P
C1164
10uF
6.3V
+5V_TUNER_IF
+1.8V_TU_CE
+1.8V_TU_CE
C1159
0.1uF
16V
L1115
C1177
0.1uF
16V
C1165
10uF
6.3V
C1137
0.1uF
C1127
0.1uF
16V
DTV_IF_N
C1126
0.1uF
16V
C1156
22pF
50V
+3.3V_TU_CE
C1119
0.1uF
16V
LD100
SAM2333
OPT
A
2
[
G
N
]
C
A
1
[
R
D
]
C1117
0.1uF
+3.3V_TU_CE
DTV_IF_P
C1170
0.1uF
16V
R1148
0
1/16W
5%
L1113
R1155
100K
OPT
R1101 680
+3.3V_TU_CE
R1149
0
C1171
0.1uF
16V
+3.3V_TU_CE
+3.3V_TU_CE
FE_VMAIN
002:D24
+3.3V_TU_XE
DTV_IF_N
011:AG17
C1128
0.1uF
16V
C1135
0.1uF
16V
C1103
0.1uF
R1173
1K
C1134
0.1uF
16V
TUNER_SIF_IF_N
R1130
0
C1176
0.1uF
16V
+1.8V_TU_XE
R1171
10K
R1109
390
C1116
0.1uF
C1120
1000pF
50V
C1130
0.1uF
16V
R1142
0
L1116
+1.8V_TUNER
R1169
33
+1.8V_TU_XE
+1.8V_TU_CE
R1128
0
R1141
0
FE_TUNER_SDA
C1146
18pF
50V
C
1
1
6
1
2
2
p
F
OPT
C1139
270pF
OPT
FE_TUNER_SCL
C1158
22pF
50V
C1160
0.1uF
16V
R1118
4.99K
1%
R1170
10K
C1166
0.1uF
16V
+3.3V_TU_XE
L1114
C1157 0.1uF
16V
R
1
1
2
1
3
9
0
R1127
390
R1168
33
+1.8V_TU_XE
C1121
0.1uF
16V
C1113
0.1uF
C1114
1000pF
TUNER_CVBS_IF_P
R1167
33
+1.8V_TU_XE
C1132
0.1uF
16V
C1152
0.1uF
16V
C1151
0.1uF
16V
+1.8V_TUNER
C1148
0.1uF
16V
+3.3V_TUNER
C1153
0.1uF
16V
IC1105
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
IC1103
AZ1117H-3.3
2
OUTPUT
3
INPUT
1
ADJ/GND
C1155
22uF
16V
GND
C1147
0.1uF
16V
C1154
22uF
16V
C1150
22uF
16V
+5V_TUNER
C1149
0.1uF
16V
IC1102
XC5000
1
VDDA_1
2
IN1
3
GND_1
4
IN2
5
GND_2
6
EXTCHOKE
7
GND_3
8
VDDA_2
9
VDDA_3
10
VDDC_1
11
GND_4
12
VDDC_2
13
VDDC_3
14
VDDA_4
15
VAGC
16
VIF
17
VDDA_5
18
SIF
19
GND_5
20
VDDC_4
21
VDDA_6
22
GND_6
23
VDDD_1
24
TESTMODE
25
DDI1
26
VDDC_5
27
DDI2
28
ADDRSEL
29
X2
30
GND_7
31
X1
32
EXTREF
33
VDDD_2
34
SCL
35
SDA
36
GND_8
37
RESET
38
VI2C
39
VDDC_6
40
VREF_N
41
VREF_P
42
VDDC_7
43
VDDC_8
44
REXT
45
VDDA_7
46
GND_9
47
VDDC_9
48
VDDA_8
C1123
0.1uF
16V
C1133
0.1uF
16V
C1136
0.1uF
16V
R
1
1
5
9
0
+5V_TUNER_IF
R1144
100
R1143
100
R1112
0
FE_TS_VAL
001:AJ18
/FE_RESET
C1125
0.1uF
16V
C1101
10pF
50V
C1118
10pF
50V
IC1104
CE6355
1
VSS_1
2
VDD_1
3
VSS_2
4
CLK1
5
DATA1
6
IRQ
7
CVDD_1
8
VSS_3
9
RESET
10
SLEEP
11
STATUS
12
SADD4
13
VDD_2
14
VSS_4
15
SADD3
16
SADD2
17
SADD1
18
SADD0
19
CVDD_2
20
VSS_5
21
PLLVDD
22
PLLGND
23
XTI
24
XTO
25
VSS_6
26
PLLTEST
27
OSCMODE
28
AVDD
29
AGND_1
30
VIN
31
VIN
32
AGND_2
33
VDD_3
34
RFLEV
35
CLK2/GPP0
36
DATA2/GPP1
37
CVDD_3
38
VSS_7
39
CVDD_4
40
VSS_8
41
AGC2/GPP2
42
AGC1
43
GPP3
44
SMTEST
45
VDD_4
46
VSS_9
47
MOSTRT
48
MOVAL
49
MDO0
50
MDO1
51
MDO2
52
MDO3
53
MDO4
54
VDD_5
55
VSS_10
56
MDO5
57
MDO6
58
MDO7
59
CVDD_5
60
VSS_11
61
MOCLK
62
BKERR
63
MICLK
64
CVDD_6
X1101
31.875MHz
OSC-CRYSTAL
D1101
Q1101
ISA1530AC1
E
B
C
Q1102
ISA1530AC1
E
B
C
Q1103
ISA1530AC1
E
B
C
Q1104
ISA1530AC1
E
B
C
JK1101
KCN-ET-0-0094
1
2
L1103
2%
270nH
C1108
39pF
L1105
6.8nH
2%
L1106
390nH
2%
L1108
820nH 2%
L1101 2.7uH
L1107 2.7uH
X1102
20.48MHz
L1102
OPT
1uH
+5V_TUNER_IF
+5V_TUNER
+3.3V_TUNER
+5V_TUNER_IF
+5V_TUNER_IF
R1102
0
OPT
R1103
0
C1107
120pF
C1142
15pF
C1143
15pF
X1103
31.875MHz
OSC-CERAMIC
4
GND_2
1
X-TAL_1
2
GND_1
3
X-TAL_2
C1180
10uF
16V
R1180
10
1/16W
5%
C1181
0.1uF
16V
+3.3V_TU_XE
L1111
0
L1112
BLM18PG121SN1D
C1182
18pF
50V
OPT
C1183
18pF
50V
OPT
C1184
0.1uF
16V
OPT
C1185
0.1uF
16V
OPT
C1186
0.1uF
16V
OPT
C1187
0.1uF
16V
OPT
C1188
10uF
16V
OPT
L1120
LQH32MN2R2K23L 2.2uH
TUNER
EAX61110501(9)[SL80]
11    11
   2009.06.22
Established
date 
Standard Repair Process
Revised date 
2008. 3 .26
1/13
LCD  TV
Error
symptom
A. Video error
No video/ Normal audio 
R l
M i B
d
☞
A3
☞
A1
First of all, Check whether all of cables between board is inserted properly or not.
(Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable,,,)
Normal 
audio
Y
N
Move to No
No video
Normal audio
Check Back Light
On with naked eye
On
Y
N
Check Power 
Board
12v,5v  etc.
Normal 
voltage
Y
N
Replace Main Board
Replace T-con 
Board or module
OR
R
i P
Ch k P
B
d 20V
24
t t
☞
A27
Move to No 
video/No audio
Repair Power 
Board or parts
Check Power Board 20V or 24v output
Normal
voltage
Y
Replace Inverter 
or module
☞
A2
☞
A27
g
N
Repair Power 
Board or parts
End
※
Precaution
☞
A7 & A4
Always check & record S/W Version and White 
Balance value before replacing the Main Board
Replace Main Board 
Re-enter White Balance value
※
Precaution
☞
A7 & A4
1
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