LG 84LA980T-DC (CHASSIS:LT34E) Service Manual ▷ View online
T
H
E
R
M
A
L
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.
+24V_AMP
I2C_SCL1
C5628
330pF
50V
330pF
50V
AUD_MASTER_CLK
WOOFER_MUTE
AUD_SCK
AMP_RESET_N
+24V_AMP
P5600
WAFER-ANGLE
1
2
3
4
C5607
0.1uF
0.1uF
R5601
10K
R5609
470
C5627
330pF
50V
330pF
50V
+3.3V_NORMAL
L5602
BLM18PG121SN1D
I2C_SDA1
C5636
2200pF
2200pF
50V
R5614
18
1/16W
+24V
R5607
18K
1%
C5611
4700pF
AUD_LRCH
AUD_LRCK
C5617
0.033uF
50V
50V
R5611
18
R5613
18
1/16W
R5600
10K
C5601
0.1uF
50V
0.1uF
50V
SPK_R+
R5612
18
33
R5605
C5603
10uF
10V
10uF
10V
C5626
330pF
50V
330pF
50V
AMP_MUTE
C5609 4700pF
R5604
33
C5633
0.1uF
50V
0.1uF
50V
C5618
0.1uF
50V
C5639
2200pF
2200pF
50V
SPK_R-
SPK_L+
L5601
BLM18PG121SN1D
C5613
2200pF
50V
C5630
0.47uF
50V
0.47uF
50V
R5608
15K
C5608
0.047uF
C5635
0.1uF
50V
0.1uF
50V
C5632
0.1uF
50V
0.1uF
50V
C5634
0.1uF
50V
0.1uF
50V
C5606
0.1uF
16V
0.1uF
16V
C
5
6
1
5
1
u
F
2
5
V
C5625
0.033uF
50V
SPK_L-
SPK_L-
C5619
0.1uF
50V
C5612
0.047uF
C5610
0.1uF
16V
0.1uF
16V
C5629
330pF
50V
330pF
50V
R5610
470
+3.3V_NORMAL
R5606
33
+24V_AMP
WOOFER_MUTE
C5616
0.033uF
50V
C5637
2200pF
2200pF
50V
IC5600
TAS5733
1
OUT_A
2
PVDD_AB_1
3
PVDD_AB_2
4
BST_A
5
NC_1
6
SSTIMER
7
NC_2
8
PBTL
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
A_SEL_FAULT
15
MCLK
16
OSC_RES
17
DVSSO
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS
29
GND
30
AGND
31
VREG
32
GVDD_OUT
33
BST_D
34
PVDD_CD_1
35
PVDD_CD_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
NC_3
41
NC_4
42
BST_C
43
BST_B
44
NC_5
45
NC_6
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
49
[EP]
C5614
0.1uF
0.1uF
+3.3V_NORMAL
SPK_L+
C5638
2200pF
2200pF
50V
SPK_R-
R5603
100 C5602
1000pF
50V
SPK_R+
C5624
0.033uF
50V
R5602
0
0
Q5600
MMBT3904(NXP)
E
B
C
C5604
0.1uF
16V
0.1uF
16V
C5631
0.47uF
50V
0.47uF
50V
C5620
10uF
35V
C5623
10uF
35V
C5622
10uF
35V
C5621
10uF
35V
L5600
UBW2012-121F
L5605
NRS6045T100MMGK
10.0uH
L5603
NRS6045T100MMGK
10.0uH
L5606
NRS6045T100MMGK
10.0uH
L5604
NRS6045T100MMGK
10.0uH
C5605
4.7uF
10V
4.7uF
10V
ZD5600
5V
OPT
GP4_MT5369
58
2011.11.21
AUDIO[ST]
Close to Speaker
Separate DGND AND AVSS
SPEAKER_L
This parts are Located
on AVSS area.
on AVSS area.
SPEAKER_R
T
H
E
R
M
A
L
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.
C5711
4700pF
WOOFER
C5732
0.1uF
50V
0.1uF
50V
WOOFER
SPK_WOOFER_L+
C5725
0.033uF
50V
WOOFER
C5728
330pF
50V
330pF
50V
WOOFER
P5701
FW25001-02(SPK 2P)
WOOFER
1
2
C5730
0.47uF
50V
0.47uF
50V
WOOFER
C5733
0.1uF
50V
0.1uF
50V
WOOFER
C5712
0.047uF
WOOFER
I2C_SDA1
C5707
0.1uF
0.1uF
WOOFER
R5702
33
WOOFER
R5707
470
WOOFER
R5701
100
WOOFER
AUD_SCK
R5708
470
WOOFER
C5729
330pF
50V
330pF
50V
WOOFER
R5700
0
0
WOOFER
C5719
0.1uF
50V
WOOFER
SPK_WOOFER_R+
R5712
18
1/16W
WOOFER_STEREO
SPK_WOOFER_R+
R5713
18
WOOFER
C5708
0.047uF
WOOFER
AMP_RESET_N
C5726
330pF
50V
330pF
50V
WOOFER_STEREO
R5714
18
WOOFER
C5702
1000pF
50V
WOOFER
+24V_AMP_WOOFER
C5716
0.033uF
50V
WOOFER
+3.3V_NORMAL
+24V
AUD_MASTER_CLK
I2C_SCL1
+24V_AMP_WOOFER
R5711
18
1/16W
WOOFER_STEREO
C5717
0.033uF
50V
50V
WOOFER
C5737
2200pF
2200pF
50V
WOOFER
L5702
BLM18PG121SN1D
WOOFER
R5704
33
WOOFER
C5727
330pF
50V
330pF
50V
WOOFER_STEREO
C5735
0.1uF
50V
0.1uF
50V
WOOFER_STEREO
R5705
18K
1%
WOOFER
C5704
0.1uF
16V
0.1uF
16V
WOOFER
R5709
10K
OPT
C5731
0.47uF
50V
0.47uF
50V
WOOFER_STEREO
SPK_WOOFER_L+
C5718
0.1uF
50V
WOOFER
+24V_AMP_WOOFER
WOOFER_MUTE
C5710
0.1uF
16V
0.1uF
16V
WOOFER
SPK_WOOFER_L-
C5739
2200pF
2200pF
50V
WOOFER_STEREO
C5706
0.1uF
16V
0.1uF
16V
WOOFER
C5736
2200pF
2200pF
50V
WOOFER
C5724
0.033uF
50V
WOOFER
C5703
10uF
10V
10uF
10V
WOOFER
C5738
2200pF
2200pF
50V
WOOFER_STEREO
R5710
10K
OPT
C5701
0.1uF
50V
0.1uF
50V
WOOFER
C
5
7
1
5
1
u
F
2
5
V
WOOFER
C5734
0.1uF
50V
0.1uF
50V
WOOFER_STEREO
C5714
0.1uF
0.1uF
WOOFER
IC5700
TAS5733
WOOFER
1
OUT_A
2
PVDD_AB_1
3
PVDD_AB_2
4
BST_A
5
NC_1
6
SSTIMER
7
NC_2
8
PBTL
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
A_SEL_FAULT
15
MCLK
16
OSC_RES
17
DVSSO
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS
29
GND
30
AGND
31
VREG
32
GVDD_OUT
33
BST_D
34
PVDD_CD_1
35
PVDD_CD_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
NC_3
41
NC_4
42
BST_C
43
BST_B
44
NC_5
45
NC_6
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
49
[EP]
33
R5703 WOOFER
GND-4
GND-4
R5706
15K
WOOFER
L5701
BLM18PG121SN1D
WOOFER
AUD_LRCH
SPK_WOOFER_R-
C5713
2200pF
50V
WOOFER
C5709 4700pF
WOOFER
AUD_LRCK
SPK_WOOFER_R-
SPK_WOOFER_L-
+3.3V_NORMAL
C5723
10uF
35V
WOOFER_STEREO
C5722
10uF
35V
WOOFER
C5721
10uF
35V
WOOFER_STEREO
C5720
10uF
35V
WOOFER
L5700
UBW2012-121F
WOOFER
L5704
NRS6045T100MMGK
WOOFER
10.0uH
L5706
NRS6045T100MMGK
WOOFER
10.0uH
L5703
NRS6045T100MMGK
WOOFER_STEREO
10.0uH
L5705
NRS6045T100MMGK
WOOFER_STEREO
10.0uH
C5705
4.7uF
10V
WOOFER
P5700
250A1-WR-H03B
WOOFER_STEREO
1
2
3
ZD5700
5V
OPT
GP4_MT5369
58
2011.11.21
AUDIO[ST]
This parts are Located
on AVSS area.
on AVSS area.
WOOFER_R
Close to Speaker
Separate DGND AND AVSS
WOOFER_L
T
H
E
R
M
A
L
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.
C5820
10uF
35V
C5810
4700pF
C5816
0.033uF
50V
50V
C5809
0.1uF
16V
0.1uF
16V
C5823
0.033uF
50V
+3.3V_NORMAL
C5831
0.1uF
50V
0.1uF
50V
AUD_MASTER_CLK
R5807
470
C5800
0.1uF
50V
0.1uF
50V
I2C_SDA2
C5834
0.1uF
50V
0.1uF
50V
R5813
18
H_SPK_L+
R5802
33
C5812
2200pF
50V
R5812
18
1/16W
+24V_UD_AMP
R5804
33
WOOFER_MUTE
C5828
330pF
50V
330pF
50V
L5804
NRS6045T100MMGK
10.0uH
C5825
330pF
50V
330pF
50V
L5806
NRS6045T100MMGK
10.0uH
H_SPK_R-
H_SPK_R+
C5821
10uF
35V
C5830
0.47uF
50V
0.47uF
50V
C5815
0.033uF
50V
I2C_SCL2
+24V
C5822
10uF
35V
+24V_UD_AMP
AMP_RESET_N
C5829
0.47uF
50V
0.47uF
50V
C5803
0.1uF
16V
0.1uF
16V
C5837
2200pF
2200pF
50V
C5832
0.1uF
50V
0.1uF
50V
AUD_LRCK
L5802
BLM18PG121SN1D
L5801
BLM18PG121SN1D
+24V_UD_AMP
C5811
0.047uF
AUD_LRCH1
C5801
1000pF
50V
R5808
470
C5818
0.1uF
50V
C5805
0.1uF
16V
0.1uF
16V
C5819
10uF
35V
C5836
2200pF
2200pF
50V
R5805
18K
1%
C5827
330pF
50V
330pF
50V
C5802
10uF
10V
10uF
10V
H_SPK_L-
R5806
15K
33
R5803
+3.3V_NORMAL
C5813
0.1uF
0.1uF
R5800
0
0
C5807
0.047uF
C5833
0.1uF
50V
0.1uF
50V
AUD_SCK
L5805
NRS6045T100MMGK
10.0uH
C
5
8
1
4
1
u
F
2
5
V
C5808 4700pF
C5826
330pF
50V
330pF
50V
C5806
0.1uF
0.1uF
C5817
0.1uF
50V
L5803
NRS6045T100MMGK
10.0uH
R5801
100
C5835
2200pF
2200pF
50V
R5811
18
1/16W
C5824
0.033uF
50V
GND-5
R5814
18
C5838
2200pF
2200pF
50V
IC5800
TAS5733
Height_SPK
1
OUT_A
2
PVDD_AB_1
3
PVDD_AB_2
4
BST_A
5
NC_1
6
SSTIMER
7
NC_2
8
PBTL
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
A_SEL_FAULT
15
MCLK
16
OSC_RES
17
DVSSO
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS
29
GND
30
AGND
31
VREG
32
GVDD_OUT
33
BST_D
34
PVDD_CD_1
35
PVDD_CD_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
NC_3
41
NC_4
42
BST_C
43
BST_B
44
NC_5
45
NC_6
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
49
[EP]
L5800
CIS21J121
GND-5
ZD5800
5V
OPT
C5804
4.7uF
10V
58
H13_UD
Separate DGND AND AVSS
Height Speaker L to 24P wafer
AUDIO[HEIGHT CH.]
Height Speaker R to 24P wafer
This parts are Located
on AVSS area.
on AVSS area.
Close to Speaker
Height_SPK option
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.
SIGN600002
C6004
0.1uF
50V
EU
DTV/MNT_R_OUT
C6008
1uF
25V
EU
SCART_Lout
R6008
33K
EU
C6005
33pF
EU
SCART_MUTE
C6003
33pF
EU
DTV/MNT_L_OUT
DTV/MNT_L_OUT
R6002
470K
OPT
Q6000
MMBT3904(NXP)
EU
E
B
C
R6000
2.2K
EU
+12V
C6007
6800pF
OPT
SCART_AMP_L_FB
R6010
470K
OPT
C6000
1uF
25V
25V
EU
R6004
33K
EU
DTV/MNT_R_OUT
C6002
6800pF
OPT
Q6001
MMBT3904(NXP)
EU
E
B
C
L6000
EU
SCART_Rout
SCART_AMP_R_FB
IC6000
AZ4580MTR-E1
EU
3
IN1+
2
IN1-
4
VEE
1
OUT1
5
IN2+
6
IN2-
7
OUT2
8
VCC
R6011
2.2K
EU
Q6002
RT1P141C-T112
RT1P141C-T112
EU_SCART_MUTE_ISAHAYA
E
B
C
R6014
1K
EU
R6013
1K
EU
Q6002-*1
PDTA114ET
EU_SCART_MUTE_NXP
E
B
C
60
SCART AUDIO AMP
2011.11.21
[SCART AUDIO MUTE]
AUD_OUT >> EU/CHINA_HOTEL_OPT
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