Read LG 42SL90QD-AA (CHASSIS:LA92M) 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.
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.
AMP
SPK_R+ 007:AG15
C741
1000pF
50V
R734
3.3
C732
22000pF
50V
C746
0.47uF
50V
SPK_R- 007:AG15
MS_LRCK
002:X21
AMP_VCC
0.01uF
C758
50V
R736
3.3
0.01uF
C756
50V
R730
4.7K
0.01uF
C757
50V
SDA_SUB/AMP
001:J21;001:AJ13;005:S9
SPK_L- 007:AG14
R737
3.3
R732
4.7K
MS_LRCH
002:X22
SPK_L+
007:AG14
C742
1000pF
50V
MS_SCK
002:X21
AUDIO_MASTER_CLK
002:X21
C743
1000pF
50V
C731
22000pF
50V
+1.8V_AMP
C726
22000pF
50V
+1.8V_AMP
C745
0.47uF
50V
C744
1000pF
50V
AMP_RST
001:AA21
0.01uF
C755
50V
R735
3.3
SCL_SUB/AMP
001:J21;001:AJ13;005:S8
R733
4.7K
C716
22000pF
50V
R731
4.7K
+1.8V_AMP
SPK_R-
007:AJ9
SPK_L-
007:AJ5
SPK_L+
007:AJ3
SPK_R+
007:AJ7
C705
100pF
50V
R710
100
R709
100
R708
3.3K
R704
100
R703
0
+3.3V
Q701
2SC3052
E
B
C
+3.3V_ST
R717
33K
OPT
AMP_VCC
R724
10K
R729
10K
C714
33pF
50V
33pF
50V
C712
33pF
50V
33pF
50V
0.1uF
C706
16V
C702
0.1uF
16V
0.1uF
C715
16V
C708
1000pF
50V
C707
1000pF
50V
R740
0
0
D704
100V
1N4148W
OPT
D705
100V
1N4148W
OPT
D706
100V
1N4148W
OPT
D707
100V
1N4148W
OPT
C704
10uF
6.3V
C700
10uF
6.3V
C760
10uF
10uF
6.3V
L700
BLM18PG121SN1D
L701
BLM18PG121SN1D
AMP_VCC
L703
CB3216PA501E
+24V
C725
68uF
35V
68uF
35V
R701
100
R702
100
R705
100
R725
12
R726
12
R714
12
R712
12
R727
12
R728
12
R713
12
R711
12
IC701
NTP-3100L
EAN60664001
1
BST1A
2
VDR1A
3
RESET
4
AD
5
DVSS_1
6
VSS_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LFM
12
AVDD_PLL
13
DVDD_PLL
14
TEST0
15
DVSS_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
25
FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
L702
BLM18PG121SN1D
0.1uF
C709
D701
ENKMC2838-T112
A1
C
A2
SB_MUTE
001:V21
NTP_MUTE
001:AA22
001:AA22
C713
1uF
25V
C724
1uF
25V
C727
1uF
25V
C730
1uF
25V
L709
120-ohm
L707
120-ohm
L708
120-ohm
L706
120-ohm
0.1uF
C728
50V
0.1uF
C720
50V
0.1uF
C735
50V
0.1uF
C734
50V
C703
10uF
35V
10uF
35V
C701
10uF
35V
10uF
35V
C722
68uF
68uF
35V
C721
0.1uF
16V
0.1uF
16V
R718
100
0.1uF
C749
50V
0.1uF
C750
50V
0.1uF
C751
50V
0.1uF
C752
50V
C766
1uF
R744
3K
3K
R742
47K
47K
OPT
R748
47K
47K
R756
0
L711
CIC21J501NE
OPT
Q705
RTR030P02
S
D
G
R749
15K
15K
C763
0.1uF
16V
OPT
+5V_ST
R754
OPT
BT_LOUT
R753
0
R752
47K
C762
10uF
6.3V
R758
0
R746
1K
1K
C764
0.1uF
50V
C765
0.1uF
16V
R755
4.7K
R751
0
OPT
BT_DP
BT_ON/OFF
L710
CIC21J501NE
BT_ROUT
C710
0.1uF
50V
BT_LOUT_AMP
Q703
2SC3052
E
B
C
BT_LOUT_AMP
BT_DM
R759
0
0
Q704
2SC3052
E
B
C
R747
470
470
Q702
2SA1504S
E
B
C
R743
3K
3K
+5V_GENERAL
C761
22uF
16V
+12V
R757
0
L705
AD-8770
EAP60684501
AD-8770
EAP60684501
2S
1S
1F
2F
L704
AD-8770
EAP60684501
AD-8770
EAP60684501
2S
1S
1F
2F
P700
WAFER-ANGLE
1
2
3
4
5
P701
12507WR-08L
1
2
3
4
5
6
7
8
9
SPEAKER_L
SPEAKER_R
EAX61110501(6)[SL80]
7 11
AMP
2009.05.28
2A => 5A
MCLK SDATA WCK BCK TP is necessory
Monitor0_1_2 TP is necessory
BLUETOOTH
BLUETOOTH Audio TR Amp
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