LG 42LG80FR (CHASSIS:LP81G) 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.
220K
R212
0
R210
1K
R237
MNT_ROUT
1K
R236
5.6V
D209
MUTE_LINE
10uF
16V
C209
470K
R230
CVBS_LIN
OPT
C207
100uF
16V
C206
SD05
D201
MNT_LOUT
CVBS_RIN
10uF
16V
C208
10K
R228
5.6V
D204
75
R208
220K
R209
CVBS_VIN
470K
R229
75
R227
5.6V
D202
MNT_VOUT
5.6V
D208
12K
R219
12K
R221
10K
R218
10K
R220
5.6V
D216
220K
R244
SIDE_RIN
75
R241
SD05
D214
SIDE_V
220K
R242
SIDE_LIN
5.6V
D215
75
R245
SIDE_Y
75
R246
SIDE_C
SD05
D217
SD05
D218
S_VIDEO_DET
SD05
D219
12K
R248
12K
R250
10K
R247
10K
R249
OPT
C210
READY
PPJ150-09
JK200
3A
[RD]O_SPRING1
2A
[RD]1P_CAN1
4A
[RD]CONTACT1
2B
[WH]1P_CAN1
3B
[WH]0_SPRING1
2C
[YL]1P_CAN1
3C
[YL]O_SPRING1
4C
[YL]CONTACT1
2D
[RD]1P_CAN2
3D
[RD]O_SPRING2
4D
[RD]CONTACT2
2E
[WH]1P_CAN2
3E
[WH]0_SPRING2
2F
[YL]1P_CAN2
3F
[YL]O_SPRING2
4F
[YL]CONTACT2
RT1C3904-T112
Q202
E
B
C
RT1C3904-T112
Q203
E
B
C
PPJ218-01
JK204
5C
[RD]CONTACT
2C
[RD]U_CAN
4C
[RD]O_SPRING
2B
[WH]U_CAN
3B
[WH]C_LUG
2A
[YL]U_CAN
5A
[YL]CONTACT
4A
[YL]O_SPRING
PSJ015-02
JK205
5
O_SPRING
4A
C_LUG_L_1
4B
C_LUG_S_1
4C
C_LUG_L_2
4D
C_LUG_S_2
3
GROUND
7
SHIELD
0.1uF
16V
READY
C213
0
R252
0
R251
100pF
50V
READY
C214
100pF
50V
READY
C215
0
R222
100pF
50V
READY
C211
0
R223
100pF
50V
READY
C212
100pF
50V
READY
C216
100pF
50V
READY
C217
2 11
INPUT2
H5 LG80
INPUT2 : CVBS,SIDE AV
POP NOISE
SIDE AV
CVBS
EAX50659401
MSTAR LP81G
2008/02/20
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.
1K
R319
+5V_HDMI_2
HDMI1_C-
HDMI1_0-
HPD_MST_2
HDMI1_C+
CEC_C
CEC
HDMI1_5V_DET
10K
R300
HDMI1_0+
+3.3V_MULTI_MST
1K
R310
CEC
HDMI1_1-
HDMI1_2-
HDMI2_5V_DET
10K
R324
+3.3V_MULTI_MST
+5V_HDMI_2
HPD_MST_1
CEC
BSS83
Q306
S
B
D
G
+5V_ST
0
R356
+5V_HDMI_1
0
R358
HDMI1_1+
0.01uF
50V
READY
C307
KDS184S
KDS184
D300
A2
C
A1
10K
R329
HDMI1_2+
+5V_HDMI_1
0
R357
0
R355
+5V_ST
10K
R301
+5V_HDMI_1
0
R347
+5V_HDMI_2
0
R345
0
R346
CDS3C30GTH
30V
D302
READY
KDS184S
KDS184
D301
A2
C
A1
0
R350
47K
R330
47K
R331
47K
R326
47K
R327
0
READY
R376
M M
B D
3 01
L T
1 G
30V
D304
A
C
HDMI2_SDA HDMI2_SCL
HDMI1_SDA HDMI1_SCL
0
READY
R383
0.01uF
50V
C301
0.01uF
50V
C300
51K
R333
30K
R334
READY
JP1117
JP1118
JP1119
JP1120
2SC3875S
RT1C3904-T112
Q300
E
B
C
2SC3875S
RT1C3904-T112
Q301
E
B
C
200
R332
QJ41193-FEE2-7F
JK302
1
DATA2+
2
DATA2_SHIELD
3
DATA2-
4
DATA1+
5
DATA1_SHIELD
6
DATA1-
7
DATA0+
8
DATA0_SHIELD
9
DATA0-
1
0
CLK+
11
CLK_SHIELD
12
CLK-
13
CEC
14
NC
15
SCL
16
SDA
17
DDC/CEC_GND
18
+5V_POWER
19
HPD
20
JACK_GND
21
.
22
.
QJ41193-FEE2-7F
JK301
1
DATA2+
2
DATA2_SHIELD
3
DATA2-
4
DATA1+
5
DATA1_SHIELD
6
DATA1-
7
DATA0+
8
DATA0_SHIELD
9
DATA0-
10
CLK+
11
CLK_SHIELD
12
CLK-
13
CEC
14
NC
15
SCL
16
SDA
17
DDC/CEC_GND
18
+5V_POWER
19
HPD
20
JACK_GND
21
.
22
.
AT24C02BN-10SU-1.8
IC300
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AT24C02BN-10SU-1.8
IC301
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
100
R323
100
R322
100
R320
100
R321
22
R381
22
R379
22
R380
HDMI2_0+
HDMI2_0-
HDMI2_2-
HDMI2_1-
HDMI2_2+
HDMI2_C-
HDMI2_1+
HDMI2_C+
0
R304
0
R302
0
R305
0
R307
0
R309
0
R308
0
R303
0
R306
22
R382
18K
R328
18K
R325
HDMI
3 11
H5 LG80
OPTION
SW_HPD : USE SW HPD (Default)
MST_HPD : USE MST HPD
**MULTI ITEM
1.24C02-SUB:0IMMRAL014D
2.SMD HDMI Jack-SUB:6612B00015B
EAX50659401
MSTAR LP81G
2008/02/20
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.
EAM38769502
L402
EAM38769502
L406
BG1608B121F
EAM38769502
L403
KRC102S
Q403
NOT LG60
E
B
C
100
R410
NOT LG60
AC_DET
+3.3V_MST
LED_R/PWM
3.3K
R417
READY
4.7K
R420
47pF
C403
BG1608B121F
EAM38769502
L400
LED_G
10K
R434
NOT LG60
+5V_ST
0.1uF
C408
KEY2
KEY1
470pF
C404
4.7K
R421
0.1uF
C411
3.3K
R435
NOT LG60
OPT
C407
470pF
C412
10K
R409
READY
+5V_ST
470pF
C401
NOT LG60
EAM38769502
L401
NOT LG60
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCLKE+,TXCLKE-
4.7K
10BIT except for 52 sharp
R401
0
R424
HD or 32"AUO FHD
+3.3V
4.7K
FHD(except 32"AUO FHD)
R407
0
READY
R432
0
R408
+3.3V
0
READY
R431
0
R402
8BIT or 52 sharp
2SA1530A-T112-1R
Q402
NOT LG60
E
B
C
SMW200-26C
P403
HD_NORMAL
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
26
0.1uF
C400
0
HD
R438
IR
5.
6B
ZD400
R E
A D
Y
2SA1530A-T112-1R
Q406
LG60
E
B
C
+5V_ST_SW
3.3K
R445
LG60
3.3K
R444
LG60
0
CPT
R428
0
NOT LG60
R404
0
R405
UBW2012-121F
120OHM
L404
VCC_LCD
12505WS-08A00
P400
1
2
3
4
5
6
7
8
9
+3.3V_MST
47uF
16V
C406
TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCE4+,TXCE4-,TXCLKE+,TXCLKE-
TXCLKO+,TXCLKO-,TXCO0+,TXCO0-,TXCO1+,TXCO1-,TXCO2+,TXCO2-,TXCO3+,TXCO3-,TXCO4+,TXCO4-
1/10W
0
5 %
R446
R E
A D
Y
SMW200-40C
P404
FHD
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TXCE1-
TXCLKE-
TXCE2+
TXCE0+
TXCE1+
TXCE3+
TXCLKE+
TXCE0-
TXCE3-
TXCE2-
TXCE0-
TXCE1-
TXCE2-
TXCLKE-
TXCE3-
TXCE0+
TXCE1+
TXCE2+
TXCLKE+
TXCE3+
TXCO0-
TXCO1-
TXCO2-
TXCLKO-
TXCO3-
TXCO0+
TXCO1+
TXCO2+
TXCLKO+
TXCO3+
TXCO4+
TXCO4-
TXCE4-
TXCE4+
LVDS,CTR KEY
4 11
H5 LG80
IR & CONTROL KEY
PANEL WAFER
HD
2SC3052(P/N:0TRIY80001A) RA:2SC3875(P/N:0TR387500AA)
**MULTI ITEM
NC
NC
EAX50659401
MSTAR LP81G
R428
CPT
LPL
R401
R402
10BIT
8BIT(HD)
8BIT(FHD)
4.7K
0
X
X
0
X
52 sharp
0
X
X
32 sharp
LG60
LG30
R404
R444
R445
Q406
X
X
32 sharp
X
O
X
3.3K
3.3K
O
O
X
XX
X
R407
R424
HD
FHD
X
O
4.7K
X
X
L410
L411
O
LG50
X
X
X
O
LG70
X
X
X
BEAD
BEAD
BEAD
BEAD
BEAD
BEAD
BEAD
BEAD
X
L407
BEAD
22uF
X
C414
22uF
22uF
X
R414
X
10K
X
2008/02/20
LED_B
GND
KEY2
KEY1
IR
LED_R
GND
ST_5V
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.
100
R507
READY
+5V_TUNER
0.027uF
C512
4.7uF
35V
C510
READY
AM_AUDIO
27pF
C502
4.7K
R503
0.01uF
C503
+5V_TUNER
0.1uF
C520
+5V_TUNER
0
R545
220
R522
270pF
C513
READY
1K
R513
27pF
C501
MAIN_SIF
1K
R515
TV_MAIN
0.01uF
C507
READY
OPT
READY
R553
SCL_TUNER
SDA_TUNER
+5V_TUNER
4.7K
R504
4.7K
R508
0
R514
330
R506
330
R505
4700pF
C506
220
R521
2SA1530A-T112-1R
Q502
E
B
C
RT1C3904-T112
Q501
E
B
C
0
R519
0
R518
TAFT-Z703D
TU500
NON EU TUNER
14
AFT
13
V-OUT
5
RF_AGC
12
NC_4
11
A
S
2
GND_1
19
NC_7
18
NC_6
10
CLOCK
4
N
C_2
1
N
C_1
17
NC_5
9
DATA
8
GND_2
3
+B[5V]
16
SIF-OUT
7
N
C_3
6
TP[33V_OPTION]
15
A-OUT
21
SHIELD
20
NC_8
BLM18BD102SN1D
L502
READY
TAFT-H703F
TU500-*1
NTSC TUNER
14
AFT
13
V-OUT
5
RF_AGC
12
NC_4
11
AS
2
GND_1
19
NC_7
18
NC_6
10
CLOCK
4
NC_2
1
NC_1
17
NC_5
9
DATA
8
GND_2
3
+B[5V]
16
SIF-OUT
7
NC_3
6
TP[33V_OPTION]
15
A-OUT
21
SHIELD
20
NC_8
UBW2012-121F
120OHM
L501
10uF
16V
C521
TUNER
5
1
1
H5 LG80
EAX50659401
MSTAR LP81G
Near the pin
2008/02/20
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