Read Sony XES-Z50 Service Manual online
– 159 –
IC804
MBM29F400BA-70PFTN-MA02
CONTROL
CIRCUIT
LOW VCC
DETECTOR CIRCUIT
WRITE/ERASE
PULSE TIMER
PULSE TIMER
ERASE CIRCUIT
RY/BY
BUFFER
CHIP ENABLE/
OUTPUT ENABLE
CIRCUIT
I/O
BUFFER
DATA
LATCH
ADDRESS
LATCH
Y
DECODER
4,194,304
CELL
MATRIX
Y GATE
WRITE CIRCUIT
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
DQ3
DQ11
VCC
DQ4
DQ12
DQ5
DQ13
DQ7
DQ14
DQ6
DQ10
DQ2
DQ9
DQ1
DQ8
DQ9
DQ1
DQ8
DQ0
GND
CE
OE
1
2
3
4
5
6
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
A8
A9
A15
A14
A13
A13
A12
A11
NC
RY/BY
WE
A7
A6
A4
A5
NC
NC
RESET
NC
47
48
45
46
A3
A2
A1
A17
A10
NC
X
DECODER
A16
BYTE
GND
DQ15/A–1
A0
STB
STB
IC805
CXK516100TM-70LL-TL
LEVEL
SHIFT
&
BUFFER
MEMORY
MATRIX
512 x 1024
ROW
DECODER
I/O GATE
COLUMN
DECODER
I/O
BUFFER
PRE
DECODER
I/O3
MEMORY
MATRIX
512 x 1024
I/O GATE
COLUMN
DECODER
I/O
BUFFER
CONTROL
1
2
2
3
4
5
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
I/O13
I/O4
I/O2
I/O1
A4
A3
A2
A2
A1
A0
CE
VCC
GND
I/O5
I/O6
I/O7
I/O8
I/O8
WE
A15
A14
A12
A13
NC
A11
I/O14
I/O15
I/O16
LB
UB
OE
A5
A6
A7
GND
VCC
I/O12
I/O11
I/O10
I/O10
I/O9
A8
A9
A10
NC
NC
LEVEL
SHIFT &
BUFFER
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