Sony SLV-E177EG - System Control-Video;Rp Block Interface (MA-314 Board IC161); System Control-Servo Peripheral Circuit Interface (MA-314 Board IC161)

5-1
SECTION 5
INTERFACE, IC PIN FUNCTION DESCRIPTION
SLV-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
OL∗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
OL L L ∗2L L
IC161!£
REC P
MA-314
OL L L LLH
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).