Mitsubishi Electric WD-52531 Service Manual page 49

1 2 3
PG 3.....SIGNAL1 [TV MICRO]
A
B
COVER-DET
FMT-PGOOD
C
MAIN-RELAY
ACOFF ACOFF
PC-RXD
PC-RXD
PC-TXD PC-TXD
FMT-BUSREQ FMT-BUSREQ
SUCS
SUCS
SWD SWD
SCK SCK
MUTE_SPKR1
SRD SRD
FMTRST FMTRST
FMT-RXD FMT-RXD
FMT-TXD
FMT-TXD
FMT-CTS FMT-CTS
FMT-RTS FMT-RTS
BUSYX-ENG BUSYX-ENG
DDAN-ENG DDAN-ENG
CLRN-ENG CLRN-ENG
ENG-SCL
ENG-SCL
ENG-SDA ENG-SDA
V-SYNC
V-SYNC
D
DVI-PWRDOWN
STBY
3.3VSL
E
MUTE-AVR
MUTE-MNT
BWC2 BWC2
BWC1 BWC1
3.3VSL
INPUT-DET1
INPUT-DET0
SB-CCD
F
MN-CCD
SD-SUB
SD-MN
MAIN-R MAIN-R
MAIN-L MAIN-L
DM-R
DM-R
DM-L DM-L
DM-CV DM-CV
SUB-VD SUB-VD
SUB-HD SUB-HD
SUB-CR SUB-CR
SUB-CB SUB-CB
SUB-Y SUB-Y
MAIN-VD MAIN-VD
MAIN-HD MAIN-HD
MAIN-CR MAIN-CR
MAIN-CB MAIN-CB
MAIN-Y MAIN-Y
G
5VSCL
5VSDA
ANT-SW ANT-SW
3.3VS 3.3VS
DEMOD1-RST DEMOD1-RST
TSMCLK 3.3VSL
TSMCLK
TSMDT TSMDT
TSMVLD TSMVLD
TSMFRM TSMFRM
OOBCRX OOBCRX
OOBDRX OOBDRX
AFT-H AFT-H STBY
AFT-L AFT-L
I2CB-SDA I2CB-SDA 5VSL
I2CB-SCL I2CB-SCL
H
PON PON
PON-SHORT PON-SHORT
AVR-L AVR-L
AVR-R AVR-R
9VS 9VS
18VSL STBY-SHORT
18VSL
5VS 5VS MUTE_SPKR1
MUTE_SPKR2
STBY-SHORT
MUTE_SPKR1
MUTE_SPKR2
5VSCL 5VSCL
5VSDA 5VSDA
5VSL
STBY
I
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
J
K
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4 5 6
TO CONTROL TO PREAMP
AN
1 2 3 4 5 6 7 8 9 10 1 2 3 4
BOSS
LE
1 4 10
2 3 5 6 7 8 9
3.3VSL
R7A65 R7A72
10K 4.7K
1/16W
1/16W
L7A73
BLM18BB141SN1
C7A73
0.47
D7A73
16V/10V
MC2838-T112-1
R7C61 C7A81
2.7K
0.1
1/16W
25V/16V
Q7A81
RT1P241C-T112-1
LAMP-R
R7A81
100
LAMP-R1 1/16W
R7C63
R7A82
2.7K 100
1/16W
1/16W
Q7A83
R7A83
LAMP-G RT1P241C-T112-1 100
LAMP-G1
1/16W
R7C62
R7A84
2.7K
1/16W 100
STATUS-R 1/16W
R7C65 Q7A84 R7A85
2.7K
RT1P241C-T112-1 100
1/16W
STATUS-G 1/16W
R7A86
Q7A85
100
RT1P241C-T112-1 1/16W
R7A92 R7A87
Q7A88 100
330
1/16W 2SC3052-T112-1E,F 1/16W
PWRLED
R7A79
2.7K
L7A89 1/16W
LM21BB201SN1 C7A88 C7A89
0.1 10
25V/16V 16V
R7A88
R7A99 R7A93 4.7K
10K 10K 1/16W
R7A90
1/16W 1/16W
100
KSC1 1/16W
R7A91
100
KSC0 1/16W
R7C92
C7A91 C7A90 100
0.01 0.01 1/16W
R7C95 50V 50V
R7C93
10K
1/16W 100
1/16W
R7A94
R7C98 100
22K 1/16W
1/16W
R7A95
10K
1/16W
C7A95
1000
25V
C7A93
R7A96 R7A97
C7A96 0.1 470
220 1K 16V
1/16W
50V 1/16W
R7A98 C7A97
C7A94 1M 680
2.2U
1/16W 25V
6.3V
L7A99
201 OHM
C7A98 C7A99
47 0.1
16V 25V/16V
C7A03
R7A00
0.1 470
16V
1/16W
R7A01
1M
1/16W
IC9C51
L9C51 LD29150DT33R
221 OHM
IN OUT
1 3
GND TV-RESET
C9C52 C9C53 C9C54
100 0.1 2 0.1
16V 25V/16V 25V/16V
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 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
TA
TO DM RA
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
7 8 9
3.3VSL
C7C21 R7C24 R7C23
0.1 10K 10K
25V/16V 1/16W 1/16W
R7A69
R7A68 R7A66
100
1/16W 4.7K 4.7K
1/16W 1/16W
R7A80 R7A78
2.2K R7A76
100
1/16W 1/16W
0
1/16W
R7A73 R7A71
R7A75 R7A64 R7A59 R7A58
100 10K 100 100 100
0 1/16W 1/16W
1/16W 1/16W 1/16W
1/16W
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
LAMP-R
81
DM_PWR_GOOD
82
LAMP-G
83
STATUS-R
84
STATUS-G
85
MUTE-MNT
86
STBY
87
PWRLED
88
DM-TEMP
89
KSC1 IC7A00
90
M306V7MG-162FP#U0
KSC0
91
INPUT-DET1
92
HDD-TEMP
93
INPUT-DET0
94
VHOLD
95
HLF2
96
CV_IN_SUB
97
GND4
98
VCCE(5VST)
99
CV_IN_MAIN
100
C7A00
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
680
25V
C7A01 R7A03 R7A06 R7A07 C7A20
R7A04 R7A12
1000 100 100 100 100 C7A16 C7A17 C7A19 0.01
25V R7A02 1K 25V R7A24
1/16W 1/16W 1/16W 1/16W 0.1 47 25V
1K R7A09 1/16W 16V 100
4.7K 25V/16V 1000
1/16W 1/16W
R7A05 1/16W R7A13 R7A23
100 470 10K
C7A12 1/16W
C7A04 C7A02 1/16W 1/16W
0.01 R7A20
2.2U 220
R7A16 25V/50V 100
6.3V 50V R7A19
10K C7A06 C7A07 1/16W
1/16W C7A13 C7A15 1K
100 100 X7A13 1/16W
50V 50V 22 16.000MHz 22
50V
50V
R7A18
R7B10 R7A14 8.2K
2.2K 2.2K
L7A16 1/16W
1/16W 1/16W
3.3VSL
IC7A02
C7A09
MAX823REUK+T R7A15
0.1 4.7K
25V/16V 1/16W
R7A11 VCC WDI
5 4
10K
1/16W IC7A03
RST MR
1 TC7SA08FU(TE85L,F)
GND 3
C7A10
2
1U
10V/16V 1 INB VCC 5
C7A11
2 INA 0.1
25V/16V
R7C01 R7C05 3 GND OUTY 4
0 0
1/16W 1/16W
TO DM
48 49 50
3.3VS
10 11 12 13
R7A43
R7A56
10K
2.2K 1/16W
1/16W
R7A51
R7A53 100
1/16W
100
1/16W
R7A54
10K
1/16W
55 54 53 52 51
R7A50
1K
COVER-DET
1/16W
50
R7A52
100
BWC2
1/16W
49 R7C50
R7A48 10K
100
BWC1 1/16W
1/16W D7A44
48 3.3V
MC2838-T112-1
R7C47
10K
BUS_REQ
1/16W
47
R7A46 R7A47
10K 5.6K
Tie 3.3V(UPDATE) 1/16W 1/16W
R7A45
46 10K
R7A42 1/16W
100
AC_OFF 1/16W
45
R7A44 R7C48
1K
100
STBY-SHORT 1/16W 1/16W
44
C7A44
R7B42 0.1
CARDDET
5.6K 25V/16V
43 1/16W
PON-SHORT
42
GND(UPDATE)
R7A40
41
4.7K
1/16W
DMFANSTP DMFANSTP
40
SIGNAL-SHORT
39
CTS0-TRS0
38
R7A37 R7A32
100
10K
GND(UPDATE) 1/16W 1/16W
37
RXD0
36
TXD0
35
NC
34
NC
33
NC
32
LAMPLITZ
31
26 27 28 29 30
R7A25
R7A30
100
100 C7A29
1/16W 1/16W
R7A26 0.1
R7A29 25V/16V
100 100 R7B29
4.7K
1/16W 1/16W
1/16W
R7A27 VCC OE
5 1
100
1/16W
A
2
R7A34 B GND
4 3
4.7K
1/16W
IC7A29
SN74CBTD1G125DBVR
R7A33
4.7K
1/16W
R7C30
R7C27 R7C29
0 0 0
1/16W 1/16W 1/16W
CONTENTS
PG 1.....BLOCK
PG 2.....POWER / INTERFACE
PG 3.....SIGNAL1 [TV MICRO]
PG 4.....SIGNAL2 [AUDIO / DC-DC]
PG 5.....SIGNAL3 [VID-AUDIO-SW]
PG 6.....SIGNAL4 [FMT-MICRO]
PG 7.....SIGNAL5 [TUNER]
PG 8.....SIGNAL6 [PIN-JACK] / MISC [CONTROL/E2P/FRONT/PREAMP]
PG 9.....DM1 [DMDCDC]
PG 10....DM2 [DMCORE]
PG 11....DM3 [DMMEMA/DC]
PG 12....DM4 [DMMEMB/USB]
PG 13....DM5 [DMROM/AV]
PG 14....DM6 [DMADC-DVI]
14 15 16
R7C83
10K
1/16W
WD-52531 V32
WD-62531 V32
PG 15....DM7 [DMPM8]
WD-62530 V32L
PG 16....DM8 [DM-HDMI]
PG 17....DM9 [DM-AUDIO]
PAGE 3