Syscon Schematic Diagram - JVC AV-20FD22 Service Manual

[ SYSCON PWB(SYSCON) CIRCUIT DIAGRAM ]
A B
8
7
FROM/TO
VIDEO ENCORDER
DVD_RESET
MUTE
P.CON+3.3V
P.CON+D5V
DGND
SDA
SCL
RESET
MPGSTBY
EEPROM
SI2
SO2 IC1006
SSC-MRST
0
SSC-MTSR
A0
CD/DVD
6 SW1
0
A1
0
A2
0
A3
FROM/TO MPEG
HRST
SSC-MRST
SSC-MTSR
SSC-SCLK
SSC-ATN
HD7
5
HD6
HD5
HD4
SI2
HD3
HD2
SO2
HD1
HD0
HA4
HA3
HA2
HA1
HWR#
MPGCS#
HRD#
MPGIRQ#
MPGRST
MPGSTBY
HRDY
4
MPGIRQ#
MPGRST
MPGSTBY
3
2
1
A B
C

SYSCON SCHEMATIC DIAGRAM

B1001
N2012ZP600T25
BR24C01AF-WE2
3.2
VCC
0
TEST
R1004
5.0
SCL
4.7K
R1005
5.0
SDA NC NC NC NC NC
R1034 4.7K 0 0 0 0 0 3.2 5.0 0 3.2 3.2
75 74 73 72 71 70 69 68 67
4.7K
0
SI0/PF0
D1003
0
SO0/PF1
D1004 1SS355
3.2
SC0/PF2
1SS355
0
NC SI1/PF3
0 74 PD2/AN2/DVDSOS
NC SO1/PF4
75 PD3/AN3/INIT5
5.2
SI2/PF5
D1002
3.2
SO2/PF6
R1002 0
1SS355
NC PF7/INT4/ATG#
R1001
4.7K
3.2
NC DACK1/PE7
10K
3.2
NC DACK0/PE6
0
DREQ1/PE5
R1007 1K
3.2
DREQ0/PE4
0.1
INT3/PE3/SC2
3.2
INT2/PE2/SC1
C1003
0
VSS
X1001 18P CH
1.5
X1
12.5MHz 1.5
X0
C1002
3.2
VCC
18P CH
R1010
3.2
INT1/PE1
4.7K
3.2
INT0/PE0
3.2 1 DREQ2/PB5/CS1L
RAS0/PB0
2 DACK2/PB6/CS1H
3.2
CSOL/PB1
0
NC CSOH/PB2
0
NC DWOX/PB3
0
NC PB4/EOP2
1 2 3 4 5 6 7 8 9
0 0 3.2 3.2 0 3.3 0 3.2 3.2 3.2 3.2 3.2 3.2 3.2
NC NC
NC NC
R1012
1K
C
No.51821
AV-20FD22 AV-20FD22
D E
(SYSCON PCB)
NC NC NC NC NC NC NC NC NC NC NC NC NC NC
0 3.2 3.2 3.2 3.2 3.2 3.2 0 0 0 0 0 0 0 0
66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
0
P47/A07 NC
0
P46/A06 NC
0
P45/A05 NC
1.9
P44/A04
52 P51/A09
2.3
P43/A03
51 P50/A08
3.2
P42/A02
0
P41/A01
C1009
3.2
VCC
3.2 0.1 F
P40/A00 NC
0
P37/D31
0
VSS
SYSCON 0
P36/D30
IC1001
0
ZR36703
P35/D29
0
P34/D28
0
P33/D27
0
P32/D26
0
P31/D25
0
P30/D24
0
P27/D23 NC
0
P26/D22 NC
0
24 P85/WR1#
P25/D21 NC
0
25 P20/D16
P24/D20 NC
0
P23/D19 NC
0
P22/D18 NC
3.2
P21/D17
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
0 3.2 3.2 1.6 3.2 3.2 3.2 3.2 3.2 3.2 3.2
NC NC
JG1002
NOTE: THE DC VOLTAGE AT EACH PART WAS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
DURING PLAYBACK
D E
2-15 2-16
F G
HA4
HA3
HA2
HA1
HD7
HD6
HD5
HD4
HD3
HD2
HD1
HD0
PCB010
VMA215
F G
No.51821
H
8
7
6
5
4
3
2
1
H