Sony CNU-500 Maintenance Manual page 37

IC
CXK581000P-10L (SONY)
×
C-MOS 1M (131,072 8)-BIT STATIC RAM
- TOP VIEW -
V
DD
1 NC 32
(+5 V)
A16 2 31 A15
A14 3 30 CE2
A12 4 29 WE
A7 5 28 A13
A6 6 27 A8
A5 7 26 A9
A4 8 25 A11
A3 9 24 OE
A2 10 23 A10
A1 11 22 CE1
A0 12 21 I/O8
A0 - A16
I/O1 - I/O8
I/O1 13 20 I/O7
CE1, CE2
WE
I/O2 14 19 I/O6
OE
I/O3 15 18 I/O5
16 GND 17 I/O4
CE1
CE2 OE WE MODE I/O TERMINAL
1
X X X NOT SELECT
X
0 X X NOT SELECT
0
1 1 1 OUTPUT DISABLE
0
1 0 1 READ DATA OUTPUT
0
1 X 0 WRITE DATA INPUT
23
A10
25
A11
26
A9
27
A8
28
A13 BUFFER
31
A15
2
A16
3
A14
4
A12
5
A7
6
A6
7
A5
8
A4
BUFFER
9
A3
10
A2
11
A1
12
A0
24
OE
BUFFER
29
WE
22
CE1
30
CE2
CNU-500
IL11
12
A0
11
A1
10
A2
9
A3
8 13
A4 I/O1
7 14
A5 I/O2
6 15
A6 I/O3
17
5
I/O4
A7
18
27
I/O5
A8
26 19
A9 I/O6
23 20
A10 I/O7
25 21
A11 I/O8
4
A12
28
A13
3
A14
31
A15
2
A16
CE1 CE2 WE OE
22 30 29 24
; ADDRESS INPUT
; DATA OUTPUTS
; CHIP ENABLE INPUTS
; WRITE ENABLE INPUT
; OUTPUT ENABLE INPUT
HI-Z
HI-Z
0 ; LOW LEVEL
HI-Z
1 ; HIGH LEVEL
X ; DON'T CARE
HI-Z ; HIGH IMPEDANCE
ROW DECODER
MEMORY MATRIX
512×2048 BITS
DATA I/O GATE
COLUMN DECODER
DATA I/O BUFFER
13-15 17-21
I/O1-I/O8
GAL22V10B-25LP (LATTICE)
C-MOS ELECTRICALLY ERASABLE PROGRAMMABLE LOGIC DEVICE
—TOP VIEW—
IN/CK
IN/CK 1 V 24
IN DD
(+5V)
I/O 9
IN 1 2 23
I/O 8
IN 2 3 22
I/O 7
IN 3 4 21
I/O 6
IN 4 5 20
I/O 5
IN 5 6 19
IN
I/O 4
IN 6 7 18
I/O 3
IN 7 8 17
I/O 2
IN 8 9 16
I/O 1
IN 9 10 15
I/O 0
IN 10 11 14
IN 11
12 GND 13
ABOVE DIAGRAM SHOWS CONDITIONS BEFORE PROGRAMMING.
*
HA9P5020-5 (HARRIS) FLAT PACKAGE
OPERATIONAL AMPLIFIER
-TOP VIEW-
BAL 1 8 DISABLE
IN IN
V +
2 7
-
+
3 6
4 V - 5 BAL
IN
V + V -
TYPE
+ 5 to + 18v - 5 to - 18v
EL2020CN
+ 5 to + 15v - 5 to - 15v
HA9P5020
LM1881M (NS) FLAT PACKAGE
VIDEO SYNC SEPARATOR
—TOP VIEW—
(+5 to +12V)
COMPOSITE
V
CC
1 8
SYNC
OUT
COMPOSITE
2 7 ODD/EVEN
VIDEO
IN
VERTICAL
3 6 RSET
SYNC
OUT
5 BURST/BACK
4 GND
OUT
TIMING CHART
COMPOSITE
VIDEO IN
COMPOSITE
SYNC OUT
VERTICAL
SYNC OUT
BURST OUT
ODD/EVEN OUT
IL00
1
14
15
2
16
3
4
17
5
6
18
AND/OR
7
LOGIC
8
ARRAY
19
9
10
20
11
13
21
22
23
C
COMPOSITE
2 COMPOSITE 1
VIDEO SYNC
OUT
VERTICAL 3
SYNC
C
7
ODD/EVEN
6
5
RSET BURST/BACK
R
4-3
IC
I/O