![Mitsubishi Electric WD-52631 Service Manual Download Page 72](http://html.mh-extra.com/html/mitsubishi-electric/wd-52631/wd-52631_service-manual_239458072.webp)
IC9G23
LD29150DT18R
Q9G52
Si7804DN-T1-E3
Q9G02
Si7804DN-T1-E3
Q9G53
Si7804DN-T1-E3
Q9G03
Si7804DN-T1-E3
IC9G24
SC1566I5MT-2.5.TR
DMSHORT
3.3V, 5.3A MAX.
STBY-ON
DMSHORT
2.6V 4.6A MAX.
STBY-ON
PG 19....DM11 [SPA2]
PG 20....DM12 [DMDCDC]
PG 22....DM14 [DMAUDIO]
PG 6.....SIGNAL3 [VIDEO SWITCH / DCDC CONVERTER]
PG 5.....SIGNAL2 [AUDIO / PIC MICRO]
PG 7.....SIGNAL4 [3DYC / NTSC DECODER]
PG 18....DM10 [SPA]
PG 17....DM9 [DMADC-PCSUB]
PG 24....MISC [FRONT/CONTROL/PREAMP/E2P/SWLAMP]
PG 2.....POWER
PG 9.....DM1 [DMHDMI]
PG 8.....SIGNAL5 [TUNER1 / DEMOD1]
PG 21....DM13 [DVI]
PG 10....DM2 [DMCORE]
PG 11....DM3 [DMMEMA/DC]
PG 1.....BLOCK
PG 16....DM8 [DMADC-MAIN]
PG 23....DM15 [FMTMICRO]
PG 13....DM5 [DMROM/AV]
PG 12....DM4 [ DMMEMB/USB]
PG 15....DM7 [DMPOD]
PG 14....DM6 [1394/DVI/F]
PG 3.....TERMINAL
PG 4.....SIGNAL1 [TV MICRO]
3.3VSA
VCCOUT
GND
1
KFF
2
RT
3
LVBP
4
PGD
5
SGND
6 SS
7
VFB
8
COMP
9
PGND
10
LDRV
11
DBP
12
SW
13
HDRV
14
BOOST
15
VDD
16
ILIM
1
SOURCE
2
SOURCE
3
SOURCE
4
GATE
5
DRAIN
6
DRAIN
7
DRAIN
8
DRAIN
1
KFF
2
RT
3
LVBP
4
PGD
5
SGND
6 SS
7
VFB
8
COMP
9
PGND
10
LDRV
11
DBP
12
SW
13
HDRV
14
BOOST
15
VDD
16
ILIM
1
SOURCE
2
SOURCE
3
SOURCE
4
GATE
5
DRAIN
6
DRAIN
7
DRAIN
8
DRAIN
1
SOURCE
2
SOURCE
3
SOURCE
4
GATE
5
DRAIN
6
DRAIN
7
DRAIN
8
DRAIN
1
SOURCE
2
SOURCE
3
SOURCE
4
GATE
5
DRAIN
6
DRAIN
7
DRAIN
8
DRAIN
VO
ADJ
EN
VIN
GND
6
GND
1
CONTROL
2
GND
3
NC
4
NOISE BYPASS
5
VOUT
6
NC
7
NC
8
VIN
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46 47
48 49
50
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46 47
48 49
50
0.1
C9G78
25V/16V
L9G70
221 OHM
0.1
C9G76
25V/16V
STBY-ON
STBY-ON
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
LC8709
NFL21SP506X1C3D
1
2
3
LC8710
NFL21SP506X1C3D
1
2
3
LC8713
NFL21SP107X1C3D
1
2
3
POWER-ON
MAIN-V
MAIN-H
MAIN-PR
MAIN-PB
MAIN-Y
MN-R
MN-L
STBY-ON
SUB-Y
SUB-PB
SUB-PR/C
SUB-H
SUB-V
DM-R
DM-L
DGND
DM-CV
AVR-R
AVR-L
0.1
C9G67
25V/16V
C9G70
M-47
6.3V
0.1
C9G69
25V/16V
0.1
C9G71
25V/16V
0.47
C9G89
10V
DGND
DGND
DGND
FMT-PWRGOOD
3K
1/16W
R9G65
12K
1/16W
R9G34
1/16W
R8748
100
DGND
1/16W
R87C1
0
1/16W
R87C2
0
1/16W
R87C3
0
6.3V
C9G90
47
10uF
C8708
6.3V
ENGINE-PWR
1
3
2
DGND
DGND
1/16W
R9G80
0
1/16W
R9G81
0
1/16W
R9G82
0
1/16W
R9G87
0
1/16W
R9G90
0
DGND
1/16W
R9G88
0
DGND
1/16W
R9G89
0
1/16W
R8703
0
COVER-DET
LAMP-RELAY
1/16W
R8707
100
DMSHORT
180K
1/16W
R9G02
10K
1/16W
R9G56
1/16W
R9G55
160K
2.2
1/10W
R9G15
0
1/10W
R9G67
IC9G00
TPS40071PWPR
1/16W
R9G03
1K
2SC3052-T112-1E,F
Q9G00
1/16W
R9G64
2.2
680
C9G87
50V
1UF
C9G09
V25
2SC3052-T112-1E,F
Q9G51
1/16W
R9G00
27K
47K
1/16W
R9G51
1/16W
R9G19
10
1/16W
R9G68
2.2
180K
1/16W
R9G52
10K
1/16W
R9G06
1/16W
R9G05
160K
2.2
1/10W
R9G94
0
1/10W
R9G17
IC9G50
TPS40071PWPR
1/16W
R9G53
1K
2SC3052-T112-1E,F
Q9G50
1/16W
R9G14
2.2
680
C9G13
50V
1UF
C9G59
V25
2SC3052-T112-1E,F
Q9G01
1/16W
R9G50
27K
47K
1/16W
R9G01
1/16W
R9G69
10
1/16W
R9G18
2.2
F9G01
FCC20252ADTP
1/16W
R8778
0
3.3VSCL
1/16W
R8759
0
3.3VSDA
HOTPLG1
1/16W
R8719
100
S1
S3
S2
1/16W
R8722 100
HMRST
1/16W
R8721
100
1/16W
R8710
100
HMINT
12VSB
DMSHORT
DMSHORT
220
1/16W
R9G16
220
1/16W
R9G95
L9G51
GSRH127-7R6M
L9G01
GSRH127-4R7N
DGND
DGND
1/16W
R8709
100
1/16W
R8717
100
1/16W
R8711
100
DGND
DGND
160K
1/16W
R9G04
160K
1/16W
R9G54
M-22uF
C9G66
25V
M-22uF
C9G65
25V
M-22uF
C9G16
25V
M-22uF
C9G15
25V
10uF
C9G17
6.3V
10uF
C9G80
6.3V
DGND
5
4
2
1
3
10V
C9G62
680U
0.1
C9G01
50V/25V
0.1
C9G50
50V/25V
0.1
C9G10
50V/25V
0.1
C9G51
50V/25V
0.1
C9G19
50V/25V
0.1
C9G93
50V/25V
0.1
C9G58
50V/25V
0.1
C9G08
50V/25V
0.1
C9G02
50V/25V
0.1
C9G52
50V/25V
0.1
C87B7
50V/25V
0.1
C87A7
50V/25V
0.1
C87A6
50V/25V
0.1
C87B3
50V/25V
0.1
C87A4
50V/25V
0.1
C87A2
50V/25V
0.1
C87A3
50V/25V
0.1
C87B5
50V/25V
0.1
C87A5
50V/25V
0.1
C87A9
50V/25V
0.1
C87A1
50V/25V
0.1
C87B2
50V/25V
0.1
C87A8
50V/25V
0.1
C87B1
50V/25V
0.1
C87B4
50V/25V
0.1
C87B6
50V/25V
16V
C9G68
100
1/16W
R8704
220
1/16W
R8701
100
1/16W
R8702
100
1/16W
R9G10
13K
1/16W
R9G09
3.9K
1/16W
R9G12
1.8K
1/16W
R9G58
2.2K
56
C9G07
50V
56
C9G57
50V
1.8K
1/16W
R9G63
1.5K
1/16W
R9G13
1/16W
R9G60
13K
1/16W
R9G93
5.6K
1/16W
R9G62
2.7K
8200
C9G05
25V/50V
8200
C9G55
25V/50V
0.022
C9G54
16V/25V
10uF
C9G64
25V
10uF
C9G11
25V
10uF
C9G14
25V
10uF
C9G61
25V
10V
C9G86
680U
10V
C9G63
680U
8200
C9G04
25V/50V
1/16W
R9G92
220
L9G53
2.7MH
L9G52
2.7MH
IC9G70
NJM2370R09
0.1
C9G77
25V/16V
STBY-ON
16V
C9G79
22
16V
C9G75
22
L9G00
6.8MH 9X9.5
L9G50
6.8MH 9X9.5
L9G02
6.8MH 9X9.5
L9G03
6.8MH 9X9.5
0.1
C9G22
25V/16V
0.1
C9G73
25V/16V
F9G00
FCC20252ADTP (MI)
MC2838-T112-1
D9G03
MC2838-T112-1
D9G53
MA732
D9G54
MA732
D9G04
D9G02
MAZ80390H
D9G52
MAZ80390H
MA732
D9G00
MA732
D9G50
("H"=ON)
POWER-ON
MAIN-H
MAIN-V
AVR-L
AVR-R
STBY-ON
DM-L
DM-R
MN-R
MN-L
SUB-PR/C
SUB-Y
SUB-PB
SUB-V
SUB-H
DM-CV
0.5A Reg.
3A Reg.
3A Reg.
X226 core
SDRAM
DM 8
DM 14
DM 1
DM 9
DM 5
SHEET15
FMT-PWRGOOD
ENGINE-PWR
COVER-DET
LAMP-RELAY
DMSHORT
PWP GND
PWP GND
3.3VSDA
3.3VSCL
HOTPLG1
S1
S2
S3
HMINT
HMRST
DM 8
SHEET 12
SHEET 12
GND
GND
GND
DM-R
GND
GND
3.3VSCL
SUB-Y
S1
SUB-PB
GND
DM-CV
MN-L
GND
GND
GND
GND
GND
S3
GND
S2
MAIN-V
MN-R
HMRST
3.3VSDA
GND
GND
HMINT
MAIN-Y
MAIN-PR
SUB-H
GND
AVR-R
HOTPLG1
MAIN-H
POWER-ON
GND
AVR-L
GND
DM-L
GND
MAIN-PB
SUB-PR/C
GND
GND
SUB-V
GND
GND
GND
GND
GND
MAIN-Y
MAIN-PB
MAIN-PR
STBY-ON
DMSHORT
ENGINE-PWR
COVER-DET
LAMP-RELAY
FMT-PWRGOOD
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
12VSB
3.3VSA
9VS
2.6VS
5VS
3.3VSA
12VSB
5VS
9V
5V
12VSB
5VS
2.6V
1.8V
1.5V
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
12VSB
5VS
5VS
5VS
5VS
5VS
5VS
5VS
5VS
DA
FA
DM 12V TO 3.3V BUCK CONVERTER
DM 12V TO 2.6V BUCK CONVERTER
12VSB
INTERFACE CONNECTORS FOR SIGNAL
PAGE 20
CONTENTS
WD-65731 V33
WD-57731 V33
WD-52631 V33
DM DC/DC2
DM DC/DC1
PG 20....DM12 [DMDCDC]
1
13
11
5
4
14
10
3
15
9
8
12
16
6
2
7
B
J
K
H
E
F
A
C
G
D
I
12VSB
Summary of Contents for WD-52631
Page 2: ......
Page 42: ...MODEL WD 52631 WD 57731 WD 65731 Page 42 MAIN POWER SUPPLY ...
Page 43: ...Page 43 MODEL WD 52631 WD 57731 WD 65731 xHD5 Engine Fan Supplies PWB SIGNAL VIDEO PATH ...
Page 44: ...MODEL WD 52631 WD 57731 WD 65731 Page 44 PWB DM Video Path ...
Page 45: ...Page 45 MODEL WD 52631 WD 57731 WD 65731 Sound Select Circuitry ...
Page 46: ...MODEL WD 52631 WD 57731 WD 65731 Page 46 Sound Signal Path ...
Page 47: ...Page 47 MODEL WD 52631 WD 57731 WD 65731 Overall Control Circuitry ...
Page 48: ...MODEL WD 52631 WD 57731 WD 65731 Page 48 Command Input Circuit ...
Page 49: ...Page 49 MODEL WD 52631 WD 57731 WD 65731 Lamp Control Circuitry ...
Page 50: ...MODEL WD 52631 WD 57731 WD 65731 Page 50 Short Protect Circuit Light Engine Protect Circuitry ...
Page 51: ...Page 51 MODEL WD 52631 WD 57731 WD 65731 Auto Input Detection ...
Page 52: ...MODEL WD 52631 WD 57731 WD 65731 Page 52 Power Distribution ...