Read LG 32LG80FD (CHASSIS:LJ82C) Service Manual 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.
R699
1.5M
TMDS2_RX2+
H13
BCM_R_OUT
AE21
A1.2V
IC604
AT24C02BN-10SU-1.8
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
RGB_G
7:G3
R644
34
R653
499
R648
1.5M
C641
0.1uF
R622
4.7K
TMDS2_RXC+
U23
TMDS2_RX1-
H14
R683
470
BCM3553_I2S_LRCLK_OUT
5:A5;12:M12
C620
0.1uF
BCM3553_SPDIF_OUT
5:G5;5:H2
C678
0.1uF
TMDS0_RX0+
7:G6
TMDS_RX2+_BCM
P19
R633
22
TMDS1_RX1+
H5
RGB_HS
7:H2
C665
0.1uF
R6
56
47
47
0K
VR6
00
10V
R652
10
GND
COMP1_Pb
7:A4
HDMI_POWER_1
1:H7;G28
C626
0.1uF
TMDS_RX2-_BCM
AJ11
BCM_L_OUT
AD27
R628
22
SCL_HDMI_0
7:G6
R692
34
TMDS1_RX1-
Q27
TMDS1_RX0+
H6
C639
0.1uF
TMDS1_RXC+
R27
C672
0.1uF
SDA_HDMI_2
E17;I22
MNT_L_OUT
7:E5
C603
0.01uF
C668
4.7uF
C643
0.1uF
READY
TMDS_RX0-_BCM
AJ11
R625
4.7K
GND
TMDS1_RX1+
Q27
GND
A1.2V
/W_PROTECT
4:I3;B23;7:D7;7:J3
R612
1.5M
GND
C664
0.1uF
TMDS1_RX0-
H6
TMDS_RX2-_BCM
P19
C667
0
.1uF
/W_PROTECT
4:I3;B26;7:D7;7:J3
BCM_L_OUT2
C627
0.1uF
R621
4.7K
IC603
AT24C02BN-10SU-1.8
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
+9V
R610
4.7K
COMPOSITE2_IN
7:E3
C640
0.1uF
R609
34
TMDS1_RX0+
R27
TMDS1_RXC-
H7
C694
0.1uF
TMDS_RX1-_BCM
AJ11
C625
0.1uF
R647
34
MUTE2
TMDS_RX0+_BCM
Q19
R602
34
C614
10uF
R626
22
C693
0.01uF
C658
0.1uF
CS5340_I2S_SCLK_OUT
5:C3
R637
200
C609
0.01uF
TMDS2_RX0-
U24
C624
1200pF
R657
1.5K
R685
3.6K
C612
0.1uF
R639
200
TMDS2_RXC-
U23
GND
TMDS0_RX2-
7:G6
GND
SDA_HDMI_0
7:G7
TMDS_RX1+_BCM
AJ11
GND
R695
1.5M
R650
1.5M
SCL_HDMI_1
E8;S27
C632
0.1uF
A2.6V
R649
1.5M
R651
1.5M
C633
0.1uF
TMDS_RXC+_BCM
AJ12
C600
0.01uF
GND
C644
0.1uF
R629
22
+5.0V
SDA_HDMI_1
E8;I25
TMDS1_RX2+
P27
A1.2V
R691
2K
TMDS_RX2+_BCM
AJ10
S-VIDEO1_L
7:B7
R627
22
C652
0.1uF
IC100
BCM3553
DS_AGCT_CTL
AK33
DS_AGCI_CTL
AJ33
EDSAFE_AVSS_1
AJ30
EDSAFE_AVSS_2
AK32
EDSAFE_AVSS_3
AL34
EDSAFE_AVSS_4
AK31
EDSAFE_DVDD1P2
AJ31
EDSAFE_AVDD2P5_1
AL32
EDSAFE_AVDD2P5_2
AL33
EDSAFE_AVDD2P5_3
AL31
EDSAFE_IF_P
AM33
EDSAFE_IF_N
AM34
PLL_DS_AVDD1P2
AM32
PLL_DS_AGND
AN32
SD_R
AK16
SD_G
AN15
SD_B
AM15
RGB_HSYNC
AH16
RGB_VSYNC
AJ16
SD_INCM_RGB
AL15
SD_Y1
AM21
SD_PR1
AL21
SD_PB1
AN21
SD_INCM_COMP1
AM20
SD_Y2
AN22
SD_PR2
AL22
SD_PB2
AP22
SD_INCM_COMP2
AM22
SD_L1
AL17
SD_C1
AL16
SD_INCM_LC1
AP16
SD_L2
AN18
SD_C2
AM18
SD_INCM_LC2
AM17
SD_L3
AL19
SD_C3
AP19
SD_INCM_LC3
AN19
SD_CVBS1
AN16
SD_CVBS2
AN17
SD_CVBS3
AM19
SD_CVBS4
AP20
SD_CVBS5
AN24
SD_INCM_CVBS1
AM16
SD_INCM_CVBS2
AP17
SD_INCM_CVBS3
AL18
SD_INCM_CVBS4
AN20
SD_INCM_CVBS5
AM24
SD_SIF1
AN23
SD_SIF2
AL23
SD_INCM_SIF1
AP23
SD_INCM_SIF2
AM23
SD_V1_AVSS
AH22
SD_V2_AVSS
AH20
SD_V3_AVSS
AH23
SD_V4_AVSS
AH21
SD_V5_AVSS
AK23
SD_V6_AVSS
AJ17
SD_CLKTST
AG23
SD_V1_AVDD2P5
AJ18
SD_V2_AVDD2P5
AJ22
SD_V3_AVDD2P5
AJ19
SD_V4_AVDD2P5
AJ23
SD_V5_AVDD2P5
AJ21
SD_V6_AVDD2P5
AJ20
SD_V1_AVDD1P2
AK20
SD_V2_AVDD1P2
AK21
SD_V3_AVDD1P2
AK17
SD_V4_AVDD1P2
AK19
SD_V5_AVDD1P2
AK22
SD_V6_AVDD1P2
AK18
I2S_CLK_IN
AH24
I2S_DATA_IN
AJ24
I2S_LR_IN
AK24
I2S_CLK_OUT
AK25
I2S_DATA_OUT
AL25
I2S_LR_OUT
AJ25
AUD_LEFT_N
AP28
AUD_LEFT_P
AN28
AUD_VDDO2P5
AM29
AUD_VSSO
AL28
AUD_RIGHT_N
AN29
AUD_RIGHT_P
AP29
AUD_SPDIF
AP11
SPDIF_AVDD2P5
AK12
SPDIF_AVSS
AJ12
SPDIF_IN_N
AM11
SPDIF_IN_P
AN11
HDMI_RX_0_CEC_RES
AP3
HDMI_RX_0_CEC_DAT
AL5
HDMI_RX_0_HTPLG_IN
AL3
HDMI_RX_0_HTPLG_OUT
AL2
HDMI_RX_0_DDC_SCL
AL1
HDMI_RX_0_DDC_SDA
AK4
HDMI_RX_0_RESREF
AL4
HDMI_RX_0_CLK_N
AM1
HDMI_RX_0_CLK_P
AM2
HDMI_RX_0_DATA0_N
AN1
HDMI_RX_0_DATA0_P
AN2
HDMI_RX_0_DATA1_N
AM3
HDMI_RX_0_DATA1_P
AM4
HDMI_RX_0_DATA2_N
AP2
HDMI_RX_0_DATA2_P
AN3
HDMI_RX_0_VDD3P3
AK6
HDMI_RX_0_VDD1P2
AJ7
HDMI_RX_0_VDD2P5
AK5
HDMI_RX_0_PLL_AVDD1P2
AG8
HDMI_RX_0_AVSS
AJ8
HDMI_RX_0_PLL_AVSS
AG7
HDMI_RX_1_CEC_RES
AJ4
HDMI_RX_1_CEC_DAT
AK3
HDMI_RX_1_HTPLG_IN
AG4
HDMI_RX_1_HTPLG_OUT
AF8
HDMI_RX_1_DDC_SCL
AG6
HDMI_RX_1_DDC_SDA
AG5
HDMI_RX_1_RESREF
AH6
HDMI_RX_1_CLK_N
AH2
HDMI_RX_1_CLK_P
AH1
HDMI_RX_1_DATA0_N
AH3
HDMI_RX_1_DATA0_P
AH4
HDMI_RX_1_DATA1_N
AJ1
HDMI_RX_1_DATA1_P
AJ2
HDMI_RX_1_DATA2_N
AJ3
HDMI_RX_1_DATA2_P
AK2
HDMI_RX_1_VDD3P3
AH7
HDMI_RX_1_VDD1P2
AJ5
HDMI_RX_1_VDD2P5
AH5
HDMI_RX_1_PLL_AVDD1P2
AJ6
HDMI_RX_1_AVSS
AH8
HDMI_RX_1_PLL_AVSS
AK7
C637
0.1uF
TMDS_RX0-_BCM
R19
SCL_HDMI_1
E8;I26
TMDS2_RX0-
H15
A3.3V
A2.6V
TMDS1_RX0-
R27
C635
0.1uF
DDC_SCL_BCM
U19
TMDS_RX1-_BCM
Q19
VR6
08
10V
A2.6V
R646
34
C629
0.1uF
C661
0.1uF
C642
0.1uF
HDMI_SEL_1
1:G6
+5.0V
C6
0
5
0.
01uF
GND
R640
200
TMDS1_RXC+
H6
COMP2_Pr
7:C4
TU_CVBS
8:B2
A3.3V
R624
4.7K
C684
0.1uF
A2.6V
C647
0.1uF
HDMI_HPD_1
1:H7
C649
0.1uF
C648
0.1uF
CS5340_I2S_LRCLK_OUT
5:C3
TMDS2_RXC-
H16
COMPOSITE1_IN
7:B7
TMDS_RX1+_BCM
Q19
TMDS2_RXC+
H16
HDMI_SEL_0
1:G6
C675
0.1uF
R601
1K
SIF
8:C2
TMDS1_RX2+
H4
SCL_HDMI_2
E17;I22
+5.0V
R600
1K
C674
0.1uF
C636
0.1uF
TMDS0_RX0-
7:G6
TMDS1_RX1-
H5
C655
0.1uF
RGB_B
7:H3
+5.0V
C621
0.01uF
DDC_SCL_BCM
AJ12
BCM_R_OUT2
CS5340_I2S_DATA_OUT
5:E3
GND
C682
0.1uF
C690
100uF
R636
22
HDMI_POWER_2
1:H7;G25
TMDS2_RX2-
H13
C610
0.01uF
SCL_HDMI_2
I22;U23
BCM_L_OUT1
Y28
C663
0.1uF
TMDS2_RX0+
H15
R694
34
GND
A2.6V
RGB_VS
7:H2
GND
C613
10uF
R693
34
TMDS0_RXC-
7:G6
BCM_R_OUT1
Z22
C646
0.1uF
SDA_HDMI_1
E8;S27
C604
0.01uF
VR6
02
10V
C681
0.1uF
C630
0.1uF
TMDS_RXC+_BCM
R19
VR
60
6
10V
C653
0.1uF
TMDS_RXC-_BCM
AJ12
BCM_R_OUT1
AJ15
TMDS2_RX1+
H14
C680
0.1uF
RGB_R
7:G3
VR
60
5
10V
ZD600
3.3V
SDA_HDMI_1
I25;S27
HDMI_HPD_2
1:H7
HDMI_POWER_1
1:H7;G9
R643
34
TMDS0_RX1+
7:G6
+9V
R611
4.7K
VR
60
3
10V
TMDS2_RX1+
U25
C676
0.1uF
C628
0.1uF
COMP1_Pr
7:A4
GND
TMDS_RXC-_BCM
R19
GND
BCM3553_I2S_DATA_OUT
5:A5;12:M12
TMDS1_RXC-
R27
COMP1_Y
7:A4
DDC_SDA_BCM
U19
BCM_L_OUT1
AJ15
R659
5.1
C666
0.1uF
GND
R696
1.5M
TMDS0_RXC+
7:G6
S-VIDEO1_C
7:B8
TMDS2_RX1-
U24
BCM3553_I2S_SCLK_OUT
5:A5;12:M12
SCL_HDMI_2
E17;U23
GND
R661
2K
BCM_R_OUT2
AK21;AN24
C645
0
.1uF
R6
55
47
0K
C683
0.1uF
R682
470
R645
1.5M
COMP2_Y
7:B4
COMP2_Pb
7:B4
C692
1uF
C651
0.1uF
R654
499
C
607
0.
01uF
C679
0.1uF
TMDS1_RX2-
H4
C619
0.1uF
TMDS1_RX2-
Q27
TMDS2_RX2-
U25
R66
6
1K
TMDS0_RX1-
7:G6
BCM_L_OUT2
AJ27;AN26
C623
1200pF
R684
3.6K
C656
4.7uF
R658
1.5K
TMDS_RX0+_BCM
AJ11
+5.0V
R6
65
1K
HDMI_CEC
4:F4;7:H7
GND
C654
0.1uF
MNT_R_OUT
7:E5
TMDS0_RX2+
7:G5
C601
0.01uF
C606
0.01uF
+3.3V_HDMI
C638
0.1uF
TMDS2_RX2+
U25
R690
2K
HDMI_POWER_2
1:H7;G19
R662
2K
SDA_HDMI_2
I22;U23
SDA_HDMI_2
E17;U23
C657
0.1uF
DDC_SDA_BCM
AJ12
C671
0.1uF
C622
0.01uF
TMDS2_RX0+
U24
SCL_HDMI_1
I26;S27
C695
0.1uF
IC601
TMDS351PAG
1
SDA3
2
SCL3
3
GND_1
4
B31
5
A31
6
VCC_1
7
B32
8
A32
9
GND_2
10
B33
11
A33
12
VCC_2
13
B34
14
A34
15
GND_3
16
VSADJ
17
Y4
18
Z4
19
VCC_3
20
Y3
21
Z3
22
GND_4
23
Y2
24
Z2
25
VCC_4
26
Y1
27
Z1
28
GND_5
29
SCL_SINK
30
SDA_SINK
31
HPD_SINK
32
S1
33
S2
34
EQ
35
HPD1
36
SDA1
37
SCL1
38
B11
39
A11
40
VCC_5
41
B12
42
A12
43
GND_6
44
B13
45
A13
46
VCC_6
47
B14
48
A14
49
VDD
50
HPD2
51
SDA2
52
SCL2
53
B21
54
A21
55
VCC_7
56
B22
57
A22
58
GND_7
59
B23
60
A23
61
VCC_8
62
B24
63
A24
64
HPD3
R606
3.9K
ST_5V
BSS83
Q600
S
B
D
B
D
G
3.3VST_MICOM
D603
MMBD301LT1G
R641
1K
R642
1K
R660
22
R607
1.5M
R61
3
1K
R608
READY
C615
0.1uF
C616
0.1uF
GND
GND
R604
0
R603
0
HDMI_CEC_1
JK600
DC1R019WDH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
JK601
DC1R019WDH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Q604
RT1N141C-T112-1
E
B
C
Q605
RT1N141C-T112-1
E
B
C
Q611
RT1P141C-T112
E
B
C
Q606
2SA1530A-T112-1R
E
B
C
Q607
2SA1530A-T112-1R
E
B
C
Q608
2SC3052
E
B
C
Q609
2SC3052
E
B
C
Q610
2SC3052
E
B
C
D601
ENKMC2838-T112
A1
C
A2
D602
ENKMC2838-T112
A1
C
A2
R605
68K
+3.3V_HDMI
TP608
C608
3.3uF
50V
BCM_R_OUT2
AK28;AN24
TP606
TP602
TP613
R672
470
R668
470
R674
0 READY
Q601
2SC3875S
E
B
C
R675
0
R676
0
R614
0
Q603
2SA1504S
E
B
C
TP607
C617 3.3uF 50V
GND
C611
3.3uF
50V
GND
TP604
R615
30K
TP605
R670
0
READY
TP601
TP603
TP610
TP609
TP611
Q602
2SC3875S
E
B
C
R664
15K
R671
1K
BCM_L_OUT
AC28
R663
30K
BCM_R_OUT
AD22
TP600
R673
1.5K
Q612
2SA1504S
E
B
C
R669
1.5K
TP612
R667
1K
C618 3.3uF
50V
R620
15K
BCM_L_OUT2
AK29;AN26
R623
0
C602
4.7uF
READY
C659
0.1uF
C634
0.1uF
A1.2V
JP601
JP602
JP603
JP604
JP605
JP606
TP614
TP615
TP617
TP616
+3.3V_HDMI
TP619
TP649
TP618
TP620
TP621
TP622
TP623
TP624
TP625
TP626
TP627
TP628
TP629
TP630
TP631
TP632
TP633
TP634
TP635
TP636
TP637
TP638
TP639
TP640
TP641
TP642
TP643
TP644
TP645
TP646
TP647
TP648
TU_+5.0V
TU_+5.0V
R677
0
C650
1uF
GND
C660
1uF
GND
R638
100
R630
1
00
R631
1
00
R635
100
R634
100
R632
100
R617
100
R616
100
R619
100
R618
100
L600
BLM18BD102SN1D
L601
BLM18BD102SN1D
L602
L603
L605
L606
L607
BLM18BD102SN1D
L608
BLM18BD102SN1D
TP650
TP651
TP652
TP653
TP654
TP655
TP656
TP657
TP658
TP659
TP660
TP661
TP662
TP663
TP664
TP665
TP666
TP667
TP668
TP669
TP670
TP671
TP672
TP673
TP674
TP675
TP676
TP677
TP678
TP679
VIDEO EXT. INPUT
6
LJ82C
12
HDMI MUX
HDMI EEPROM
HDMI SIDE
2008.04.04
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