Sony BVP-550, Maintenance Manual

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6-3
BVP-550
Others
2SK612 2SK852-X2
2SK853 2SK663
CXK58257ATM-70LL(SONY)(ACCESS TIME=70ns)FLAT PACKAGE
Tr, Others
2SD1615A
2SD1623
DTA143XKA(R1=4.7K R2=10K)
DTA144EE(R1=47K, R2=47K)
DTA144EUA(R1=47K, R2=47K)
IMB2(R=47K)
DTC143XKA(R1=4.7K, R2=10K)
DTC144EE(R1=47K, R2=47K)
DTC144EK(R1=47K, R2=47K)
DTC144EKA(R1=47K, R2=47K)
DTC144EUA(R1=47K, R2=47K)
IMH2(R=47K)
(SCALE 4/1)
TOP VIEW
3 1 2
( )
TOP VIEW
1
3
R1
R2
2
( )
—TOP VIEW—
1
1
2
3
3
2
6
6
5
5
4
4
R
R
R
R
( )
TOP VIEW
1
1
2
3
3
2
6
6
5
5
4
4
R
R
R
R
(SCALE 4/1)
TOP VIEW
3
1 2
S
22
10
9
8
7
6
5
4
3
25
24
21
23
2
26
1
27 20
OE
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
WE CE
11
12
13
15
16
17
18
19
A0-A14
CE
I/O1-I/O8
OE
WE
CE
1
0
0
0
OE
X
1
0
X
WE
X
1
1
0
MODE
NOT SELECT
OUTPUT DISABLE
READ
WRITE
I/O TERMINAL
HIGH IMPEDANCE
HIGH IMPEDANCE
OUTPUT DATA
INPUT DATA
ADDRESS INPUTS
CHIP ENABLE INPUT
DATA INPUTS/OUTPUTS
OUTPUT ENABLE INPUT
WRITE ENABLE INPUT ;
;
;
;
;
0
1
X LOW LEVEL
HIGH LEVEL
DON'T CARE ;
;
;
BUFFER
BUFFER
21
6
7
8
9
10
22
OE
A0
A1
A2
A3
A4
A10
WE
CE
11
27
20
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
BUFFER
I/O
BUFFER
ROW
DECODER
MEMORY
MATRIX
512 x 512
I/O GATE
COLUMN
DECODER
12
13
15
16
17
18
19
1
24
25
3
4
5
A5
A6
A7
A8
A9
A14
A13
A12
A11
23
2
26
(SCALE 4/1)
TOP VIEW
*
1
3
R1
R2
2
S
TOP VIEW
3
1 2
S
V
DD
+5V
22
23
24
25
26
27
28
1
2
3
4
5
6
7
OE
IN
A11
IN
A9
IN
A8
IN
A13
IN
WE
IN
A14
IN
A12
IN
A7
IN
A6
IN
A5
IN
A4
IN
A3
IN
GND
A10
IN
CE
IN
I/O8
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
A0
IN
A1
IN
A2
IN
21
20
19
18
17
16
15
14
13
12
11
10
9
8
C-MOS 256K (32768 x 8)-BIT STATIC RAM
—TOP VIEW—