Mitsubishi Electric LT-37131 Service Manual page 45

1 2 3
PG 5.....SIGNAL3 [3DYC / NTSC DECODER]
A
B
C
D
E
F
C8H26 R8H26
15
1.5K
50V 1/16W
C8H27
470
25V/50V X8H26
3.579545MHZ
C8H28
R8H28
0.47 15K
10V
1/16W
30 29 28 27
31
C8H32
SGND
0.47
10V
CIN
32
C8H33
G 4.7
16V
33 A-PED
C8H34
R8H34
75 0.47
10V
1/16W
34 CVBS/Y-IN
ADRS-9EH
35
R8H36
100
1/16W CXA2019AQ/T4
36 SCL
R8H37
100
1/16W
SDA
37
R8H00 C8H38
R8H38 1U
2.2K 100
1/16W 1/16W 10V/16V
38 V-SYNC
C8H39
R8H21 C2M01 R8H39 4700
3.3K 220
0.1 50V
1/16W 16V 1/16W H-SYNC
39
Q8H21
V-HOLD
2SA1235A-T112-1E,F
40
C8H30
0.47
C8H21 10V
H R8H30 1 2 3 4
120 330K
50V 1/16W
R8H04
R8H01
10K
330 1/16W
1/16W
R8H83 CF8H01
10K
R8H02 C8H02 C8H03
1/16W 8.2K
0.01 0.1
CSB500F2 1/16W
25V/50V 16V
R8H84
C8H01
10K 4.7
1/16W 16V
Q8H22
2SC3052-T112-1E,F
I
J
K
4 5 6
SIGNAL2
C2M74
0.1
16V
R2M79
120 R2M78
1/16W 1K
1/16W
Q2M74
Q2M73
2SC3052-T112-1E,F
R2M80
R2M77
100 1K
1/16W
1/16W
R2M81
820 R2M76
1/16W 240
1/16W
C2M78
0.1
16V
2SA1235A-T112-1E,F
Q2M44
2SC3052-T112-1E,F
R2M55
820
1/16W
L8H25
221 OHM
C8H25 C8H24
0.1 47
16V
16V
26 25 24 23 22 21 R8H82
100
1/16W
20
R8H80
VOUT 100
1/16W
19 R8H81
UOUT
100
1/16W
Y-OUT
18
SGND2
17
SCP
IC8H01 16
R8T85
100
1/16W
H-TIM
15
R8T83
100
1/16W
V-TIM
14
V2-IN
13
U2-IN
12
Y2-IN
11
5 6 7 8 9 10
L8H03
221 OHM
C8H04
47
16V
7 8 9 10
SIGNAL2
C2M21
IC2M02
0.1
16V
EL 1881CSZ-T7
R2M21
100
1/16W COMPOSITE SYNC OUT
1 VDD 5V 8
C2M23 C2M25
R2M23
680 0.1 0.1
16V
Q2M21 1/16W COMPOSITE VIDEO IN 16V
2 7
2SC3052-T112-1E,F
ODD/EVEN OUTPUT R2M24
R2M22 680K
C2M22 VERTICAL SYNC OUT 1/16W
1.5K 25V 3
1/16W 6
560 RSET
C2M24
0.1
GND 16V
4 5
BUST/BACK PORCH OUTPUT
R2M01
L2M70 0
221 OHM 9VB
1/16W
C2M75
R2M02
390 47
R2M74 16V
56K 1/16W
C2M34
1/16W
0.1
R2M71 C2M70 16V
C2M73 R2M72 0.1
47 390 C2M37
16V L2M71 330 1/16W 16V
27MH 1/16W 0.1 R2M38
1.5K
R2M82 C2M35 16V
100 1/16W
22
R2M75 1/16W 50V
R2M70
Q2M72 12K 100
1/16W R2M35 R2M37
1/16W 470 L2M35 47
15MH
R2M73 Q2M30 1/16W 1/16W
C2M72 C2M71
390 50V 2SC3052-T112-1E,F
1/16W 22
50V 22 Q2M71 C2M30
R2M34 C2M27 R2M36
2SA1235A-T112-1E,F 50V Q2M32
1.5K 50V 300
1/16W 47 15 1/16W
L2M40
221 OHM
R2M53
120 C2M59
1/16W R2M03
47 C2M58 390
R2M52 16V
1K 0.1 1/16W
16V
1/16W R2M45
56K C2M88
Q2M43 1/16W 1U
10V/16V
R2M41
C2M56 390
R2M54 47 R2M42 1/16W
100 L2M41 330
1/16W 16V 27MH 1/16W
Q2M42 C2M86
0.1
2SC3052-T112-1E,F 16V
C2M55 R2M40
22
100
R2M44 R2M43 50V 1/16W
R2M48
12K 330 C2M92
1K 1/16W 1/16W C2M42
1/16W
50V
22
R2M47 Q2M41 C2M96
240
2SA1235A-T112-1E,F 0.1
1/16W R2M33 16V
100
1/16W
Q2M31
2SC3052-T112-1E,F
C2M87
R2M83 1U
10V/16V
820
1/16W
R2M84
820
1/16W
11 12 13
SIGNAL2 SIGNAL2
L2M21
221 OHM
5VB
C2M28
100
16V
3.3VB
C2M54
L2M53 10
R2M60 16V
100 221 OHM
1/16W
R2M59
100
C2M57 C2M53
R2M57 1/16W
10K 0.1 0.1
16V 16V
C2M65 1/16W
0.1
C2M64 16V
47
16V
B8H
L2M81
221 OHM
C2M80 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
47 C2M43
16V
47
AGND 16V
C2M81
0.1
16V 1/16W
C2M46
81 FSCO 50
0.1 L2M46
16V 221 OHM
C2M82
82 49
0.1 CBPC AGND
16V
83 48
ACO XO
84 AYO XI 47
C2M85
0.1 85 CBPY 46
AVDD
16V
86 45
AGND DVDD C2M45
0.1
87 44
C2M89 AGND TEST24 16V
47
C2M44
16V 47
88 AYI 43 16V
TEST23
IC2M00
89 VCLY TEST22 42
C2M90
0.1
16V
90 uPD64083GF-3BA-A TEST21 41
C2M91 CRBY
0.1
16V 91 40 C2M40
VRTY DGND 0.1
0.1 16V
16V
92 AVDD TEST20 39
C2M94
93 DVDIO 38
0.1 AVDD
16V
94 37 C2M38
VRTC TEST19 47
16V
95 36
C2M95 VRBC TEST18
0.1
16V
96 ACI TEST17 35
97 AGND 34
TEST16
98 33
TEST25 TEST15
TEST26
99 DVDDRAM 32
DVDD
100 31
C2M98 DVDDRAM
10
16V C2M99
0.1 C2M32 C9M33
16V DGNDRAM
0.1 47
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 16V 16V
14 15 16
C2M51
C2M52 0.047
16V/25V
0.1
16V
R2M51
220 R2M49
360 L2M50
1/16W
1/16W 5.6MH
R2M50
56
C2M49 C2M50
820 560
25V 25V
R2M46
Q2M50
220
1/16W
2SA1235A-T112-1E,F
X2M47
20.000MHz
C2M48
C2M47
50V 50V
22 22
3.3VB
L2M45
221 OHM
2.5VS
IC9M02
IC9M02-3.3VB IC9M02-2.5VS
L2M38 LD29150DT25R
221 OHM
VCCOUT
1 3
GND C9M08 C9M11
47 100
C9M06 2
0.1 16V 16V
16V
IC9M02-GND C9M07
R2M04
0.1
0 16V
1/16W
IC9M01-2.5V IC9M01-3.3VB
L2M39
221 OHM
LT-37131 VLP33
CONTENTS
LT-46131 VLP33
PG 1.....BLOCK
LT-37132 VLP33+
PG 2.....POWER
LT-46231 VLP33+
PG 3.....SIGNAL1 [TERMINAL]
PG 4.....SIGNAL2 [VIDEO SW / AUDIO AMP]
PG 5.....SIGNAL3 [3DYC / NTSC DECODER]
PG 6.....FRONT, E2P, AT-SW, PREAMP
PAGE 5