Sony SLV-L56AR, Руководство по обслуживанию, Страница: 54 / 134

5-1
SECTION 5
INTERFACE, IC PIN FUNCTION DESCRIPTION
SLV-L56/L76HF/L86HF
TAPE
TAPE
PB •
REC •
Signal
Pin No.
I/O
STOP
F
F
REW
THREAD-
UNTHREAD-
PB
PAUSE
SLOW
×
2
CUE
REVIEW
REC
PAUSE
ING
ING
CAP QR
MA-323
O
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
*
2
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
IC161
(¢
DRUM PG
MA-323
I
*
3
*
1
*
1
*
4
*
4
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
IC161
#ª
DRUM FG
MA-323
I
*
3
*
6
*
6
*
4
*
4
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
IC161
#•
CAP FG
MA-323
I
H/L
*
5
*
5
*
4
*
4
*
5
H/L
*
5
*
5
*
5
*
5
*
5
H/L
IC161
$º
CAP VS
MA-323
O
*
7
*
7
*
7
*
7
*
7
*
8
*
7
*
7
*
8
*
8
*
8
*
8
*
7
IC161
@∞
DRUM VS
MA-323
O
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
IC161
@§
STOP/
TAPE
TAPE
PB •
REC •
Signal
Pin No.
I/O
FF/
THREAD-
UNTHREAD-
PB
PAUSE
SLOW
×
2
CUE
REVIEW
REC
PAUSE
REW
ING
ING
RF SWP
MA-323
O
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
IC161
@¢
QVD
MA-323
OL
L
L
*
2
*
3
*
3
*
3
*
3
*
3L
L
IC161
@¶
C SYNC
MA-323
I
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
IC161
%¢
5-1.
SYSTEM CONTR
OL –
VIDEO BLOCK INTERF
A
CE (MA-323 BO
ARD IC161)
∗
1.
25 Hz pulse with 50% duty cycle. Synchronized with rotation of drum.
∗
2.
Normal PB “L”. V period “H” pulse when
×
1.
∗
3.
V period “H” pulse.
∗
4.
Composite Sync signal (positive polarity).
5-2.
SYSTEM CONTR
OL – SER
V
O
PERIPHERAL CIRCUIT INTERF
A
CE (MA-323 BO
ARD IC161)
∗
1.
25 Hz (P
AL-N), 30 Hz (NTSC) pulse.
∗
2.
Pulse at tape running.
∗
3.
“L” when drum rotation stop.
∗
4.
Unstable period pulse.
∗
5.
Pulse of period in proportion to tape speed.
∗
6.
300 Hz (P
AL-N), 360 Hz (NTSC) pulse.
∗
7.
Pulse at tape running.
∗
8.
Approx. 2 msec period “H” or “L” pulse.
∗
9.
Approx. 1.5 msec period “H” or “L” pulse.