KS-FX742R
1-28 (No.49816)
4.8 UPD178078GF-596 (IC701) : System CPU
• Pin layout
• Pin function
80 ~ 51
1 ~ 30
50
~
31
81
~
100
Pin No.
Symbol
I/O
Function
1
PS1(on)
I
ACC ON/OFF detection signal input
2
PS2(stop)
I
Memory ON/OFF detection signal input
3
POWER
O
POWER ON/OFF control output
4
STAND BY
I
Stand-by position detection signal input
5
TAPE IN
I
Cassette tape inside signal
6
NC
O
OUTPUT L
7
J-BUS I/O
O
J-BUS I/O selection output
8
J-BUS IN
I
J-BUS data input
9
J-BUS OUT
O
J-BUS data output
10
J-BUS SACK
I/O
J-BUS clock output/input
11
NC
O
OUTPUT L
12
I2C DA
I/O
E.VOL I2C data input/output
13
I2CSCK
O
E.VOL I2C clock
14
MODE
I
Mecha position detection signal
15
SUBMO+
O
Sub motor control. Loading direction
16
SUBMO-
O
Sub motor control. Eject direction
17
REEL
I
Reel pulse signal input
18
MS IN
I
MS signal input
19
DOLBY
O
Dolby ON/OFF control
20
HEAD SULFUR)
O
Audio signal selector for head amp
21
FREE
O
Audio level control for MS
Main motor control
Level meter input
S DMETER input
SQ level input
Connect to GND
-
Connect to GND
A/D key input 0
30
KEY
I
A/D key input 1
31
KEY
I
A/D key input
32
AVIS
-
-
33
REGCPU
-
-
34
ADD
-
-
35
REGOSC
-
-
36
X2
-
X'tal
37
X1
I
X'tal
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