Sony SX-M700 Service Manual page 74

TC74HC07AF(TOSHIBA)
***********
C-MOS BUFFER/DRIVER WITH OPEN-COLLECTOR
—TOP VIEW—
14 13 12 11 10 9 8
V
DD
(+5V)
* * *
* * *
GND
1 2 3 4 5 6 7
TC74HC4094AP(TOSHIBA)
SX-M700
TC74HC07AF
IL00
*
A Y
Y = A
0 ; LOW LEVEL
A Y
1 ; HIGH LEVEL
0 0
* ; OPEN COLLECTOR
1 1
**********
TC74HC4053AP(TOSHIBA)
C-MOS TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER
-TOP VIEW-
V
DD
Y1 1 16
I/O
(+2 V to +6 V)
Y0 2 15 Y
I/O I/O
Z1 3 14 X
I/O I/O
Z 4 13 X1
I/O I/O
Z0 5 12 X0
I/O I/O
EN 6 11 A
IN IN
7 10 B
V * IN
EE
8 GND 9 C
IN
*
V ; V – V = +3 V to +12 V
EE DD EE
<
V GND
EE =
CONTROL INPUTS
SELECT ON CHANNEL
EN
C B A
0 0 0 0 Z0 Y0 X0
0 0 0 1 Z0 Y0 X1
0 0 1 0 Z0 Y1 X0
0 0 1 1 Z0 Y1 X1
0 1 0 0 Z1 Y0 X0
0 1 0 1 Z1 Y0 X1
0 1 1 0 Z1 Y1 X0 0
0 1 1 1 Z1 Y1 X1 1
X X X
1 OPEN X
MC74HC4053F
IL00
12 X0
13 14
X1 X
OPEN
11 A
2 Y0
1 Y1 Y 15
OPEN
10 B
5 Z0
3 Z1 Z 4
OPEN
9 C
EN V
EE
6 7
; LOW LEVEL
; HIGH LEVEL
; DON'T CARE
6-11