LG 42LG80FR (CHASSIS:LP81G) Service Manual ▷ View online
- 21 -
AV1 in
SideAV
in
(AV2 in)
Comp1 in
Comp2 in
RGB in
(D/L)
AV out
CVBS IN
Y/
Pb
/Pr IN
R/G/B/HS/VS IN
CVBS IN
LINE OUT
LINE IN
LINE_MUTE
RF
(Tuner)
PC Audio
in
DISPLAY MODULE
EDID NVM
HDMI1
HDMI2
USB
DDR MEM
SERIAL
FLASH
NTP3000A
Digital
Audio AMP
MAIN NVM
MC74HC4066
Audio SW
LM324
X4 AMP
BD2041
Protect IC
EDID NVM
DDC/HDP/CEC
TMDS(HDMI in)
DDC/HPD/CEC
TMDS(HDMI in)
USB(AV I/O, Data I/O)
+5V
PART_I2C
SW_RESET
I2S OUT
LVDS
MPEG RX/TX
MPEG RESET
I2S IN
656 IN
DDC
DDC
AUDIO_SW
LINE IN
LINE IN
LINE IN
Y/
Pb
/Pr IN
LINE IN
Y/C IN
LINE IN
EDID NVM
ROM_I2C
DSUB_DDC
x0.55
x0.55
x0.55
x0.55
S_VIDEO_DET
LINE_MUTE
LINE OUT
CVBS OUT
x4
x0.55
LINE IN
CVBS IN
SIF IN
TUNER_I2C
PART_I2C
NTP3000A
Digital
Audio AMP
Mid
Center
Mid
Woofer
32"
: 2EA
42"
: 1EA
LGE6891DD
LGE6991DD
Motor
Motor
OP Amp
OP Amp
Limit S/W
4lines
2Lines
Zoran
VADDIS-966XD
MPEG Decoder
DDR
MEM
SERIAL
FLASH
Tw
Tw
BLOCK DIAGRAM
- 22 -
300
200
200T
200N
510
500
130
900
400
140
910
801
803
802
807
550
530
804
806
805
821
521
540
863
864
121
120
861
870
862
853
854
851
852
121
870
120
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
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
R133
75
R121
75
R111
SD05
D105
220K
R108
COMP1_R
COMP1_Pb
PC_AUD_R
CDS3C05GTA
5.6V
D122
COMP1_Y
SD05
D117
75
R123
5.6V
D103
COMP2_Pr
CDS3C05GTA
5.6V
D123
PPJ209-02
JK100
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
SD05
D106
5.6V
D104
COMP2_L
220K
R119
COMP1_Pr
COMP1_L
75
R122
75
R110
220K
R106
220K
R120
COMP2_Pb
PPJ209-02
JK101
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
SD05
D119
1000-ohm
L100
PC_AUD_L
COMP2_R
220K
R132
SD05
D118
1000-ohm
L101
SD05
D107
COMP2_Y
75
R109
5.6V
D115
5.6V
D116
10K
R136
10K
R143
10K
R144
12K
R142
12K
R145
12K
R137
10K
R134
12K
R135
10K
R138
10K
R140
12K
R139
12K
R141
68
R114
DSUB_SCL
75
R116
CDS3C30GTH
30V
D112
DSUB_SDA
+5V_ST
CDS3C30GTH
30V
D110
100
R125
+5V_MULTI
75
R117
DSUB_SDA
DSUB_SCL
0.1uF
C100
PC_G
CDS3C30GTH
30V
D114
0.1uF
C102
75
R118
4.7K
R112
68
R115
0.1uF
C101
PC_R
PC_B
PC_VS
68pF
C103
PC_HS
0.1uF
C105
4.7K
R113
68pF
C104
CDS3C30GTH
30V
D113
100
R124
ENKMC2837-T112
D109
A
A C
C
ENKMC2837-T112
D111
A
A C
C
ENKMC2837-T112
D108
A
A C
C
PEJ024-01
JK102
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
4.7K
R127
4.7K
R126
6630TGA004K
KCN-DS-1-0089
JK104
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
AT24C02BN-10SU-1.8
IC100
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
1000pF READY
C113
0
R146
1000pF READY
C114
0
R147
1000pF READY
C115
0
R148
1000pF READY
C116
0
R149
COMPONENT2
SDC 15 applying check
PC SOUND
COMPONENT1
1 11
2008/02/20
INPUT1
INPUT1 : COMP1/2,PC
H5 LG80
PC
1.24C02-SUB:0IMMRAL014D
**MULTI ITEM
2.ENKMC2837-SUB:0DS226009AA
(KDS226)
EAX50659401
MSTAR LP81G
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
R133
75
R121
75
R111
SD05
D105
220K
R108
COMP1_R
COMP1_Pb
PC_AUD_R
CDS3C05GTA
5.6V
D122
COMP1_Y
SD05
D117
75
R123
5.6V
D103
COMP2_Pr
CDS3C05GTA
5.6V
D123
PPJ209-02
JK100
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
SD05
D106
5.6V
D104
COMP2_L
220K
R119
COMP1_Pr
COMP1_L
75
R122
75
R110
220K
R106
220K
R120
COMP2_Pb
PPJ209-02
JK101
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
SD05
D119
1000-ohm
L100
PC_AUD_L
COMP2_R
220K
R132
SD05
D118
1000-ohm
L101
SD05
D107
COMP2_Y
75
R109
5.6V
D115
5.6V
D116
10K
R136
10K
R143
10K
R144
12K
R142
12K
R145
12K
R137
10K
R134
12K
R135
10K
R138
10K
R140
12K
R139
12K
R141
68
R114
DSUB_SCL
75
R116
CDS3C30GTH
30V
D112
DSUB_SDA
+5V_ST
CDS3C30GTH
30V
D110
100
R125
+5V_MULTI
75
R117
DSUB_SDA
DSUB_SCL
0.1uF
C100
PC_G
CDS3C30GTH
30V
D114
0.1uF
C102
75
R118
4.7K
R112
68
R115
0.1uF
C101
PC_R
PC_B
PC_VS
68pF
C103
PC_HS
0.1uF
C105
4.7K
R113
68pF
C104
CDS3C30GTH
30V
D113
100
R124
ENKMC2837-T112
D109
A
A C
C
ENKMC2837-T112
D111
A
A C
C
ENKMC2837-T112
D108
A
A C
C
PEJ024-01
JK102
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
4.7K
R127
4.7K
R126
6630TGA004K
KCN-DS-1-0089
JK104
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
AT24C02BN-10SU-1.8
IC100
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
1000pF READY
C113
0
R146
1000pF READY
C114
0
R147
1000pF READY
C115
0
R148
1000pF READY
C116
0
R149
COMPONENT2
SDC 15 applying check
PC SOUND
COMPONENT1
1 11
2008/02/20
INPUT1
INPUT1 : COMP1/2,PC
H5 LG80
PC
1.24C02-SUB:0IMMRAL014D
**MULTI ITEM
2.ENKMC2837-SUB:0DS226009AA
(KDS226)
EAX50659401
MSTAR LP81G
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