5-1
SECTION 5
INTERF
A
CE,
IC PIN FUNCTION DESCRIPTION
SL
V
-E580/E630/E727/E730/E735/E780
Signal
Pin No.
I/O
STOP
FF
REW
TAPE
TAPE
PB
REC
LOADING
UNLOADING
CTL IN+
MA-315
O
∗
7
∗
7
∗
7
∗
7
∗
7
∗
7
∗
1
IC161
(™
DRM PG
MA-315
I
∗
3
∗
3
∗
3
∗
3
∗
3
∗
3
∗
3
∗
4
∗
4
∗
4
∗
4
∗
4
∗
4
∗
4
H/L
∗
2
∗
2
∗
5
∗
5
∗
2
∗
2
H/L
L
H
L
H
L
L
L
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
STOP/
TAPE
TAPE
REC •
Signal
Pin No.
I/O
FF/
LOADING
UNLOADING
PB
REC
PAUSE
REW
RF SWP
MA-315
O
∗
1
∗
1
∗
1
∗
1
∗
1
∗
1
IC161
!•
QVD
MA-315
O
L
L
L
∗
2
L
L
IC161
!£
REC P
MA-315
O
L
L
L
L
L
H
IC161
$ª
C SYNC
MA-315
I
∗
3
∗
3
∗
3
∗
3
∗
3
∗
3
IC161
*¢
5-1. SYSTEM CONTROL – VIDEO/RP BLOCK INTERFACE (MA-315 BOARD IC161)
∗
1.
Synchronized with drum rotation. 25 Hz 50% duty pulse.
∗
2.
Normally “L”. “H” when videl signal is not generated.
∗
3.
Composite sync signal (positive).
5-2. SYSTEM CONTROL – SERVO PERIPHERAL CIRCUIT INTERFACE (MA-315 BOARD IC161)
∗
2.
Pulse of period in proportion to tape speed.
∗
3.
25 Hz “H” pulse.
∗
4.
300 Hz pulse.
∗
5.
Unstable period pulse.
∗
6.
DC voltage 1~5V.
∗
7.
Hi-Z (2.5V).
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
