Sony MCE-K700, Service Manual

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• IC501 MECHANISM CONTROL (HD6433032SK07F)/VIDEO board
Pin Name
CMD0
CMD1
CMD2
CMD3
SACK
QINT
CHECK-LED
DF-XLAT
P90/TXD
SUBQ
SQCK
V
SS
D0
D1
D2
D3
D4
D5
D6
D7
V
CC
A0
A1
A2
A3
A4
A5
A6
A7
V
SS
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
I/O
I/O
I/O
I/O
I/O
O
O
O
O
–
I
O
–
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
–
O
O
O
O
O
O
O
O
–
O
O
O
O
O
O
O
O
O
O
Function
Input/output terminal exchanging data bus 0 with system controller
Input/output terminal exchanging data bus 1 with system controller
Input/output terminal exchanging data bus 2 with system controller
Input/output terminal exchanging data bus 3 with system controller
Outputs command acknowledge to system controller
Outputs command output pulses to system controller
Check LED control
Serial data latch pulse output to Audio D/A converter (Not used. open)
Not used
Sub Q 80bit input
SQSO readout clock output
Ground
Data bus input/output
Connect to the power supply (+5V)
Address bus output
Ground
Address bus output