Read LG 37LH40 / 37LH41 (CHASSIS:LA92G) 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.
+1.8V_AMP
+3.3V_ST
120-ohm
L608
AMP_RST
001:AB21
120-ohm
L609
5.6
R615
3.3
R622
0
R610
3.3
R625
1000pF 50V
C631
MLB-201209-0120P-N2
L603
100
R604
33K
OPT
R609
0.1uF 16V
C613
5.6
R613
+1.8V_AMP
4.7K
R620
0.1uF
16V
C647
0.1uF
16V
C648
WAFER-ANGLE
P600
1
SPK_R-
2
SPK_R+
3
SPK_L-
4
SPK_L+
33pF
50V
C609
0.01uF 50V
C615
+3.3V
22000pF 50V
C623
22000pF
50V
C614
1000pF 50V
C630
0.1uF 50V
C636
0.1uF
16V
C605
10uF 16V
C600
3.3
R624
0.1uF 50V
C635
68uF
35V
C602
4.7K
R618
SDA_SUB/AMP
001:AI5;004:K27
POWER_DET
AMP_MUTE
001:D16
SPK_L-
006:AH10
DA-8580
EAP38319001
L607
2S
1S
1F
2F
120-ohm
L610
+3.3V
0.01uF
50V
C641
100
R605
+24V_AMP
AZ1117H-1.8TRE1(EH13A)
IC601
2
OUTPUT
3
INPUT
1
ADJ/GND
SPK_L+
006:AH11
1uF 10V
C617
NTP-3100L
EAN60664001
IC600
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
D V
D D
17
S D
A T
A
18
W C
K
19
B C
K
20
S D
A
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
25
F A
U L
T
26
V D
R 2B
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
V D
R 1B
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
1000pF 50V
C629
MLB-201209-0120P-N2
L604
1N4148W
100V
OPT
D601
MS_SCK
001:W26
3.3K
R602
100
R606
SPK_R+
006:AH10
22uF
16V
C649
1000pF
50V
C606
0.01uF 50V
C639
10uF
10V
C610
0.1uF
50V
C620
1uF
16V
C622
1N4148W
100V OPT
D604
0.1uF
50V
C637
68uF
35V
C628
0.47uF 50V
C634
100pF
50V
C604
0.1uF
C608
10K
R612
5.6
R616
0.01uF
50V
C642
0.01uF 50V
C640
3.3
R621
0.01uF
50V
C626
100
R608
10uF 16V
C603
+1.8V_AMP
AUDIO_MASTER_CLK
001:W26
120-ohm
L611
100
R607
22000pF
50V
C624
+1.8V_AMP
+24V_AMP
1uF
10V
C611
10K
R611
GND
33pF
50V
OPT
C616
4.7K
R617
SPK_L-
006:AJ20
0
R600
1N4148W
100V OPT
D602
+24V_AMP
0.1uF
50V
C625
1N4148W
100V
OPT
D603
33pF
50V
C612
MLB-201209-0120P-N2
L602
22000pF 50V
C618
0.47uF 50V
C633
MS_LRCH
001:W26
+24V
5.6
R614
0.1uF
50V
C638
0.1uF
16V
C601
3.3
R623
1000pF 50V
C632
22uF
16V
C646
3.3
R626
SCL_SUB/AMP
001:AI5;004:K27
0.1uF
50V
C645
SPK_R-
006:AJ16
0.01uF
50V
C643
4.7K
R619
100
R601
0.1uF
50V
C627
0.01uF
50V
C644
1000pF 50V
C607
DA-8580
EAP38319001
L606
2S
1S
1F
2F
SPK_L+
006:AJ22
MLB-201209-0120P-N2
L605
0
R603
SPK_R-
006:AH9
SPK_R+
006:AJ18
2SC3052
Q600
E
B
C
MS_LRCK
001:W26
1uF 16V
C619
47K
AC_OFF_POP
R627
MCLK SDATA WCK BCK TP is necessory
Mstar Application
SPEAKER_R
2A => 5A
SPEAKER_L
Monitor0_1_2 TP is necessory
AMP
C
2009
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