Sony SLV-E130AE1, Service Manual

Page: 45 / 130

5-1
SECTION 5
INTERF
A
CE,
IC PIN FUNCTION DESCRIPTION
SL
V
-E130/E177/E180/E230/E285/E295/E380/E430/E477/E480/E530
Signal Pin No. I/O STOP FF REW
TAPE TAPE
PB REC
LOADING UNLOADING
CTL IN+
MA-314
O
∗
7
∗
7
∗
7
∗
7
∗
7
∗
7
∗
1
IC161
(™
DRM PG
MA-314
I
∗
3
∗
3
∗
3
∗
3
∗
3
∗
3
∗
3
IC161
*•
DRM FG
MA-314
I
∗
4
∗
4
∗
4
∗
4
∗
4
∗
4
∗
4
IC161
*¶
CAP FG
MA-314
I H/L
∗
2
∗
2
∗
5
∗
5
∗
2
∗
2
IC161
*∞
CAP RVS
MA-314
O H/L L H L H L L
IC161
!§
CAP ERR
MA-314
O L
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
IC161
&¶
DRM ERR
MA-314
O
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
∗
6
IC161
&•
STOP/
TAPE TAPE REC •
Signal Pin No. I/O FF/
LOADING UNLOADING
PB REC
PAUSE
REW
RF SWP
MA-314
O
∗
1
∗
1
∗
1
∗
1
∗
1
∗
1
IC161
!•
QVD
MA-314
O L L L
∗
2 L L
IC161
!£
REC P
MA-314
O L L L L L H
IC161
$ª
C SYNC
MA-314
I
∗
3
∗
3
∗
3
∗
3
∗
3
∗
3
IC161
*¢
5-1. SYSTEM CONTROL – VIDEO/RP BLOCK INTERFACE (MA-314 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-314 BOARD IC161)
∗
1. 25 Hz pulse.
∗
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).