Sony BVT-2000 Operation And Maintenance Manual page 11

Digital time base corrector
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Use
the
CCY
cables supplied
with
the TBC
for the
connections
between
the VTR and TBC. All the other input and output signal
connections
employ BNC
connectors.
Loop-through connectors
are
provided
for
Reference
COMP
VIDEO, Reference SC, Reference COMP SYNC, and so when
this
loop-through feature
is
employed,
turn
the
@, @,
@
75n
ON/OFF
switches
OFF.
In
other uses,
turn
the
switches
ON.
By selecting
the
@
NON COMP/COMP switch, the
@
VIDE0-3 output can be turned
into composite
video
or
non-composite video.
Reference
COMP VIDEO, Reference SC,
or
COMP SYNC
is
required
to gen
lock the
TBC to the external reference
signal.
Select
the
REFERENCE SELECT
switch
OQ
the
SYNC
GENERATOR 1
board
to
lock
at REFERENCE VIDEO or at
REFERENCE SYNC.
A
sufficien tly
low
time
base
error
is required for
the gen-lock
signals, and if
this
error is high,
the proper
11erformance of
the
BVT-2000
will not
be
displayed.
When
the
signal
is not
connected
to
the
reference input,
the
sync
generator inside
the
BVT-2000 automatically
becomes
the
reference.
When using
the sync generator
inside
the BVT-2000
to
generate
the reference signal, its frequency stability is
determined
by the
crystal
oscillator
on
the SYNC
GENERA
TOR
1
printed circuit
board.
For
normal
use
the
stability
is
about
30 ppm across a
temperature
range of
0°C
to
40°C. If
this
is
not
sufficient
for the
intended
operation,
replace
the crystal
oscillator
with
a
unit
having
the
required stability
or
apply
a stable reference
signal
from
an
external source.
INPUT /OUTPUT connector specifications
1-10
CONNECTOR
DESCRIPTION
INPUT
CD
OFF
TAPE
VIDEO (to be
BNC,
1
Vp-p, 75 ohms
corrected)
(3)
DOC
PULSE
(dropout
BNC, TTL level,
High
pulse)
impedance
@R
F
(off tape)
BNC,
0
.5
Vp-p,
75 ohms
@)
VTR (Multiple
connect
or
for
BVH-1100)
@
FRAME PULSE
BNC,
TTL
level,
High
impedance
@
PLAY
STATUS
BNC, TTL
level,
High
impedance
@COM
P
VIDEO (reference)
BNCs,
1
Vp-p,
75 ohms
IN
-
Out
On/Off Switch
@sc
(referer.ice)
IN -Out
BNCs,
1
Vp-p, 75 ohms
On/Off Switch
@COMP
SYNC
(reference)
BNCs,
4
Vp·p, 75 ohms
In
-
Out
On/Off Switch
@R
EMOTE In
- Out
BNCs,
High impedance
@
ACIN
3-pin
AC
connector
OUTPUT
@
VIDE0-1 (corrected
video)
BN
C,
1
Vp-p,
75
ohms
@
VIDE0-2
(corrected
video)
BN
C,
1
Vp-p,
75 ohms
@
VIDE0-3 (corrected
video)
Non
composi
te
video/ composite
video,
1 Vp-p
@SC
(jittered,
to U-matic
BNC,
1
Vp-p,
75
ohms
type VTR)
@
ADV
SYNC
(to
U-matic
BNC,
4
Vp-p, 75 ohms
or BVH type VTR)
On/Off
Switch
@
AC OUT
max 200VA, unswitched
@
SPARE
BNC
Power connections
Connect
the
supplied
power
cord to
the
@
AC IN.
To set
the
input
voltage
(100/
120/220/240
V
±10%,
48-64 Hz),
loosen
the
Ci)
VOLTAGE
SELECTOR's
lock screw with a screw-
driver.
Tighten
again
after
selecting
the
correct
voltage.
A power in excess of 200VA cannot
be fed
out
from
the
@
AC
OUT
connector.

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