JVC AV-20FD22 Service Manual page 38

Tv/dvd combo
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Circuit Diagram
[ SYSCON PWB(MPEG) CIRCUIT DIAGRAM ]
A
FROM/TO LOADER
CP4001
CD4001
IMSA-9615S-26C-P
DVDDAT7
1
SDT7
8
2
GND
2S0Q0901
DVDDAT6
3
SDT6
4
GND
DVDDAT5
5
SDT5
6
GND
DVDDAT4
7
SDT4
8
GND
DVDDAT3
9
SDT3
10
GND
DVDDAT2
11
SDT2
12
GND
DVDDAT1
7
13
SDT1
14
GND
DVDDAT0
15
SDT0
16
GND
DVDREQ
17
DREQ
18
GND
DVDVALID
19
DACK
20
GND
DVDERR
21
DERR
22
GND
DVDSOS
23
DBGN
24
GND
DVDSTB
6
25
DCLK
26
GND
CP4002
CD4002
IMSA-9615S-16C-P
1
HD INT
NC
HRST
2S0G0901
2
HRST
3
GND
4
TXD
5
RXD
SSC-SCLK
6
SCLK
SSC-ATN
7
RDY HIF
8
GND
5
9
16M
10
GND
11
EMPH
NC
12
C2PO
13
LRCK
14
BCK
15
CD-DATA
16
SPDIF
6
4
FROM/TO SYSCON
HRST
SSC-MRST
SSC-MTSR
SSC-SCLK
SSC-ATN
HD7
MPGCS#
HD6
HD5
HD4
HD3
HD2
HD1
HD0
HA4
HA3
HA2
MPGIRQ#
HA1
3
HWR#
MPGCS#
HRD#
MPGIRQ#
MPGRST
MPGSTBY
HRDY
C4011
0.1 F
C4024
2
6.3V
47
KA
NC
3.2
0
0
0.7
0.7
0.7
0
0
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
0.1
0
0.1
0.5
0
0
0
0
NC
1
A
B
C
NC
1.6 1.8 1.8 3.2 1.8 1.8 1.6 1.6 3.2 1.9 2.3 1.6 2.5
0 3.3 3.3
0
0
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
0
0.1
NC
GPS1
CDERR
3.3
HD15
1
GND
CDFRM
0
HD14
CDDATA
0
HD13
0
CDCLK
HD12
0
NC
HD11
3.2
VDD
0
NC
HD10
0
NC
HD9
0
NC
HD8
3.2
HD7
HD7
0
GND
3.1
HD6
HD6
HD5
3.1
HD5
HD4
3.2
HD4
HD3
0
HD3
C4001
3.2
VDD
0.1
F
HD2
2.4
HD2
HD1
3.3
HD1
HD0
1.7
HD0
HA4
1.9
HA3
0
GND
HA3
2.3
HA2
HA2
2.4
HA1
HA1
3.0
HA0
HWR#
4.9
HWR#
C4002
3.2
VDD
0.1
F
3.0
HCS#
HRD#
3.2
HRD#
1.1
HRDY
3.2
NC
HACK#
3.2
VDD
4.9
HIRO#
0
HWID
0
HORD
3.2
HTYPE
0.9
A4
40
GND
0.9
A3
0
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55 56
0 0.8 0.5 0.7 0.5 1.2 0.7
3.2 0.6 1.8 0.6
0
0 2.9 3.0 3.0 1.6 3.2 3.1 3.1
NC
B
C
No.51821
AV-20FD22
AV-20FD22
D
E
MPEG SCHEMATIC DIAGRAM
(SYSCON PCB)
R4001
2.2
C4007
0.001 B
1
C4008
6.3V
220
KA
2
R4029
100
0
NC
5.0 3.2 3.2 3.2
0 1.6
0
0 3.2 1.6
0 5.0 1.4 1.4
0 1.4
0 1.6 0.1 0.4
NC
0
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
ABCLK
ALRCLK
120
GND
S/PDIF
AOUT2
AOUT1
AOUT0
VDD
AIN
C0
C1
C2
GND
C3
C4
C5
C6
VDD
MPEG
C7
IC4001
Y0
MD36710X
Y1
Y2
VDD
Y3
Y4
Y5
Y6
GND
Y7
FIELD
HSYNC
VSYNC
CBLANK
VDEN#
VDD
VMASTER
VCLK
81 GND
TESTMODE
MD0
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
0 0.8 3.2 0.4 0.8 1.2 0.9
0 0.8 1.0 0.8 1.2 3.2 0.9 0.9 0.9 0.8 0.6 0.9
0
NOTE:
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D
E
2-11
2-12
F
G
FROM/TO
VIDEO ENCORDER
P.CON+3.3VA
DGND
CLK27
C4017
C4015
0.1
F
6.3V
220
KA
B4001
P.CON+3.3V.MP
N2012ZP600T25
P.CON+3.3V
AMCLK
CLK27
ABCLK
ALRCLK
0
SPDIF-DVD
ASDAT0
R4006
1.6
ABCLK
YUV0
100
R4014
YUV1
1.6
ALRCLK
YUV2
YUV3
R4010
180
1.6
SPDIF-DVD
YUV4
YUV5
0
100
3
YUV6
NC
YUV7
0
HSYNC
NC
VSYNC
R4015
1.1
ASDAT0
SPDIF-CD
DM1
180
3.2
D_LOAD-H
R4020
0
R4002
4.7K
0
4.7K
R4011
0
R4003
4.7K
0
4.7K
0
R4004
0
4.7K
R4012
0
0
4.7K
NC
0
NC
C4016
3.2
0
0.1
F
NC
R4005
0.7
YUV0
180
R4013
0.7
YUV1
R4007
180
0.7
YUV2
180
3.2
R4008
0.6
YUV3
180
R4016
1.7
YUV4
R4009
180
0.8
YUV5
180
R4017
0.5
YUV6
180
0
R4018
1.2
YUV7
1.6
180
NC
FROM/TO SDRAM
4
3.0
HSYNC
MA4
MA3
3.2
VSYNC
MA5
3.2
MA2
5
NC
MA6
MA1
0
MA7
MA0
3.2
MA8
MA10
3.2
MA9
1.6
MA11
NC
MCS0#
MRAS#
3.2
MPCLK
MCAS#
0.8
MWE#
MDQM
0
MD8
MD7
MD9
MD6
MD10
MD5
MD11
MD4
MD12
MD3
MD13
MD2
MD14
MD1
MD15
MD0
PCB010
VMA215
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
F
G
No.51821
H
8
7
6
5
4
3
2
1
H

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