Sony SLV-495 - Interface, IC Pin Function Description; System Control - Mechanism Block Interface

SECTION 6
INTERFACE, IC PIN FUNCTION DESCRIPTION
6-1.
SYSTEM
CONTROL
—
MECHANISM
BLOCK
INTERFACE
(MA-289
board
IC
160)
Si
E
CA
1C160 @
MA-289 Board
Ic160 @ L L L
m |
wf n
MA-289 Board
MA-289 Board
1C160
©
*3
*3
*3
7.
*4 *4 *4
*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
MA-289 Board
END
LED
|
10160
@
L
*3
*3
*3
*3
3
|
3
6-2.
SYSTEM
CONTROL
—
SERVO
PERIPHERAL
CIRCUIT
INTERFACE
(MA-289
board
IC160)
; °
TAPE
TAPE
[Sioa
|
rian,
[0]
stor]
mr
|
new
|
reno
[erieeapma|
°®
|
REC
|
MA-289
Board
CTLIN+ =| 10160 co a Ns a A *7 *7
MA-289 Board
DRUM
PG
1C160
@
¥3
*3
*3
*3
*3 *3
MA-289
Board
z
‘.
‘
DRUM FG 1C160 @ ‘4 4.
MA-289 Board
CAPFG | 1¢160@
R
P
MA-289 Board
jcarnev freio@ | © |
MA-289 Board
c10@ | O
MA-289 Board
taal
*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 ~ SV.
*7, Hi-Z (2.5V).