Sony BVP-550 Maintenance Manual page 803

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