5-1
SLV-478/677HF/678HF/688HF/L47/L48/L57/
L58/L67HF/L68HF/L77HF/L78HF/X50/X60HF
SECTION 5
INTERFACE, IC PIN FUNCTION DESCRIPTION
5-1. SYSTEM CONTROL — MECHANISM BLOCK INTERFACE (MA-317 board IC160)
5-2. SYSTEM CONTROL — SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-317 board IC160)
*1. 30 Hz pulse
*2. Pulse of period in propotion to tape speed.
*3. 30 Hz “H” pulse.
*4. 720 Hz pulse.
*5. Unstable period pulse.
*6. DC voltage 1 ~ 5V.
*7. Hi-Z (2.5V).
Signal
CW
MODE 1
MODE 2
MODE 3
MODE 4
REC PRF
T REEL
S REEL
END LED
T SENS
S SENS
Pin No.
MA-317 Board
IC160 %•
MA-317 Board
IC160 @ª
MA-317 Board
IC160 @•
MA-317 Board
IC160 @¶
MA-317 Board
IC160 @§
MA-317 Board
IC160 #º
MA-317 Board
IC160 *º
MA-317 Board
IC160 &ª
MA-317 Board
IC160 @º
MA-317 Board
IC160 7
MA-317 Board
IC160 6
I/O
O
I
I
I
I
I
I
I
O
I
I
EJECTED
*5
—
—
—
—
L
H/L
H/L
L
*3
*3
CASSETTE
LOARDING
H
—
—
—
—
*1
H/L
H/L
*3
*3
*3
TAPE
THREADING
H
—
—
—
—
*1
H/L
*2
*3
*4
*4
TAPE
UNTEREADING
L
—
—
—
—
*1
H/L
*2
*3
*4
*4
STOP
*5
H
L
H
H
*1
H/L
H/L
*3
*4
*4
FF
*5
H
L
H
L
*1
*2
*2
*3
*4
*4
REW
*5
H
L
H
L
*1
*2
*2
*3
*4
*4
PB
*5
H
H
L
L
*1
*2
*2
*3
*4
*4
REC
*5
H
H
L
L
*1
*2
*2
*3
*4
*4
CASSETTE
UNLOARDING
L
—
—
—
—
*1
H/L
H/L
*3
*3
*3
Signal
CTL IN+
DRUM PG
DRUM FG
CAP FG
CAP RVS
CAP ERR
DRUM ERR
Pin No.
MA-317 Board
IC160 (™
MA-317 Board
IC160 *§
MA-317 Board
IC160 *¶
MA-317 Board
IC160 *∞
MA-317 Board
IC160 !§
MA-317 Board
IC160 &¶
MA-317 Board
IC160 &•
I/O
O
I
I
I
O
O
O
STOP
*7
*3
*4
H/L
H/L
L
*6
FF
*7
*3
*4
*2
L
*6
*6
REW
*7
*3
*4
*2
H
*6
*6
REC
*1
*3
*4
*2
L
*6
*6
TAPE
THREADING
*7
*3
*4
*5
L
*6
*6
TAPE
UNTHREADING
*7
*3
*4
*5
H
*6
*6
PB
*7
*3
*4
*2
L
*6
*6
*1. “L” When erasing protection tab is bent. “H” when not bent.
*2. Pulse of period in proportion to reel rotating speed.
*3. Approx. 2 msec period “H” pulse when tape top or end is detected.
*4. Normally “L”. 2 msec period “H” pulse when tape top or end is detected.
*5. Hi-Z
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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