Read LG 42SL90-UA (CHASSIS:LA92S) 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.
AUDIO
3 10
SL90
09/06/24
POWER_DET
C325
1uF
16V
R314
10K
R301
100
L300
MLB-201209-0120P-N2
SCL_SUB/AMP
006:AI3;010:M24
C300
22uF
16V
16V
+24V
C320
1uF
10V
AMP_RST
006:AB20
D302
100V
1N4148W
OPT
+1.8V_AMP
SPK_L- 003:AG10
SPK_R-
003:AG9
+1.8V_AMP
C317
22000pF
50V
C301
0.1uF
16V
0.1uF
16V
MS_SCK
006:W25
C328
22000pF
50V
0.1uF
C329
50V
L306
120-ohm
C339
0.47uF
50V
GND
D300
100V
1N4148W
OPT
C303
0.1uF
16V
0.1uF
16V
MS_LRCH
006:W25
L309
120-ohm
C302
10uF
16V
+1.8V_AMP
L307
120-ohm
C314
1uF
10V
C340
0.47uF
50V
0.1uF
C332
50V
R308
100
AMP_MUTE
006:D15
IC300
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
R313
3.3
3.3
0.1uF
C342
50V
Q300
2SC3052
E
B
C
SPK_L+
003:AJ22
0.1uF
C324
50V
+24V_AMP
0.1uF
C316
50V
L308
120-ohm
C321
22000pF
50V
L302
MLB-201209-0120P-N2
AUDIO_MASTER_CLK
006:W26
+3.3V
MS_LRCK
006:W26
C323
1uF
16V
C304
0.1uF
50V
R312
0
OPT
SPK_L-
003:AJ20
C306
10uF
16V
L301
MLB-201209-0120P-N2
R307
100
0.1uF
C341
50V
0.1uF
C344
50V
+3.3V
C333
68uF
35V
35V
+1.8V_AMP
R304
100
0.1uF
C343
50V
SPK_R-
003:AJ15
IC301
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
C327
68uF
35V
SPK_L+
003:AG10
R306
100
SDA_SUB/AMP
006:AI3;010:M24
+24V_AMP
D301
100V
1N4148W
OPT
0.1uF
C322
50V
R319
3.3
3.3
SPK_R+
003:AG9
C326
22000pF
50V
R305
100
C313
10uF
10uF
10V
+3.3V_ST
SPK_R+
003:AJ18
C305
22uF
16V
16V
D303
100V
1N4148W
OPT
+24V_AMP
L303
MLB-201209-0120P-N2
R326
3.3
R327
3.3
R325
3.3
R324
3.3
C307
100pF
50V
0.1uF
C308
16V
C309
1000pF
50V
C310
1000pF
50V
0.1uF
C311
C312
33pF
50V
33pF
50V
C315
33pF
50V
33pF
50V
0.01uF
C318
50V
C319
33pF
50V
33pF
50V
OPT
0.1uF
C331
50V
C334
1000pF
50V
C335
1000pF
50V
C336
1000pF
50V
C338
0.01uF
50V
0.01uF
50V
C337
0.01uF
50V
R303
0
0
R302
3.3K
0.01uF
C345
50V
0.01uF
C346
50V
0.01uF
C347
50V
0.01uF
C348
50V
R323
4.7K
R322
4.7K
R321
4.7K
R320
4.7K
R318
5.6
R317
5.6
R315
5.6
R311
10K
R316
10K
R310
0
R309
33K
OPT
R300
0
0.01uF
C330
50V
P300
WAFER-ANGLE
1
SPK_R-
2
SPK_R+
3
SPK_L-
4
SPK_L+
5
L304
AD-8770
EAP60684501
AD-8770
EAP60684501
15uH
2S
1S
1F
2F
L305
AD-8770
EAP60684501
AD-8770
EAP60684501
15uH
2S
1S
1F
2F
Mstar Application
Monitor0_1_2 TP is necessory
MCLK SDATA WCK BCK TP is necessory
0x54
SPEAKER_L
SPEAKER_R
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