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SECTION 1
GENERAL DESCRIPTION
1-1. INTRODUCTION
The Model CVC-2100A is a high-performance low-cost
TV
Camera
designed for CCTV
applications
and as
the live-action pickup for SONY Videocorders.
Automatic sensitivity control and ultra-stable circuitry
simplifies
operation to simply aiming and focusing.
The CVC-2100A
adapts itself automatically to suit. a
wide range of lighting conditions.
A 3-position selector switch
on the rear panel
sets
up the camera for either Videocorder or CCTV
appli-
cations.
In the VTR position of the selector, video is
fed to a 6-pin connector that mates with the camera/
videocorder
cable.
In this mode
of operation, the
camera
receives
2:1 interlace
sync from
the SONY
Videocorder.
In the VIDEO position of the selector,
video is brought out to a standard UHF connector, and
the vertical deflection oscillator is synchronized by
the power-line frequency (random-interlace operation).
In the RF position of the selector, aVHF TV channel
(2, 3 or 4) is modulated
with the camera's
video
and
the r-f output
appears
at the UHF
connector.
Line-
lock sync with random interlace is also applied in the
RF position of the selector.
The CVC-2100A
is made to accept a 4-inch Viewfinder,
Model CVF-4,
that fastens to the top surface of the
camera. The viewfinder gives the flexibility and con-
venience
of studio cameras by allowing the operator
to monitor all camera adjustments locally.
The power switch has three positions: OF F - STANDBY -
ON.
In the
STANDBY
position,
all
circuits
are
powered, but light is excluded from the vidicon by a
mechanical
shutter. This protects the vidicon from
accidental image burn. In the ON position, the shutter
is lifted and the camera is fully operational.
The operating temperature range is 20°F to 125°F and
the tolerable
line-voltage variation is +10% of rated
value.
Within
these
limits
horizontal
frequency
changes
less than 1% and all other characteristics
remain unchanged.
1-2. SPECIFICATIONS
Camera Tube:
- High-sensitivity vidicon
(M3016/7262A)
Semiconductors :
-30 transistors plus 20 diodes
Scanning System :
CVTR output)
~Hor. and Vert. external
synchronizing system
(Video & RF output) -— Vert. line lock synchronizing
system
Hor.
Random
JInterlace
Standard Lens:
-F1.8, 25mm'"C"
mount
Horizontal Resolution :
CVTR & Video output)
-Greater than 450 lines
- (camera alone)
CRF output)
— 300 lines
Horizontal Frequency : - 15.75 KHz
Vertical Frequency:
-60 Hz
Signal-to-Noise ratio:
-Greater than 40 dB
Video Output :
-1.4V (peak-to-peak) sync.
negative, into 75 ohms
Automatic Sensitivity Control Range:
— 300 lux to 50,000 lux
(with
F1.8 lens)
Power Requirements:
-AC
117V 60 Hz
Power Consumption:
-12 watts
Dimensions :
- 107 mm (CW) x 143 mm (H)x
265 mm(D)
(4-1/44(W) x 5-5/8"(H) x
10-7/16'(D))
Weight :
-3.3kg (7 Ibs. 50z.)
1-3. OPERATION (with SONY Videocorders)
Step 1. Connect
the camera
cable
(supplied)
to the
receptacle marked VTR OUT at the rear of the
camera.
Step 2. Connect
the other
end
of this cable
to the
receptacle marked CAMERA
on the rear jack-
plate
of
the
Videocorder
(SONY
CV-2000
Series).
Step 3. Connect the power cord (supplied) to the power
receptacle at the rear of the camera. Plug this
cord into a 117-volt AC outlet or one of the
AC receptacles at the rear of the Videocorder.
Step 4. Set the power switch to STANDBY, the selec-
tor switch to VTR, and remove
the lens cap.
Step 5. Set
up
the
Videocorder
for Camera-Record
operation;
see
the
Videocorder's
operation
manual.
Put
the Videocorder
in the record
(E to E) mode by pressing the red RECORD
button.
Step 6. Set the camera's
power
switch
to ON. The
picture
should appear on the screen
of the
Videocorder's
monitor.
Focus
the
camera
optically by turning the focus ring (calibrated
in feet). Set for best focus. Open the lens iris
fully (F 1.8). Use this lens stopfor most indoor
operations. When operating in brightly lighted
or outdoor areas, stop the lens down as re-
quired to produce a picture with good contrast.
Note: if the lens is stopped down too far (not
enough light input) contrast decreases and the
tendency
towards
image retention
and smear
of moving objects increases. Conversely, fre-
quent operation with too great a Jens opening,
as evidenced
by a very '"'contrasty'' picture,
may reduce the useful life of the vidicon.
Step 7. Electrical
focus has been
set at the factory.
However, if focus is unsatisfactory, adjust the
FOCUS
control at the rear panel with a small
screwdriver.
Set for best focus.
The
picture
totates
about
its center
as
focus
is
turned;
best focus should
coincide
with
an
upright
picture.
.
Step 8. To adjust beam current, turn the BEAM
con-
trol on the rear panel with a small screwdriver.
Turn
this control fully clockwise,
then turn
counterclockwise
slowly
until
the
picture
shows
good contrast
with no loss of detail in
the highlights. An incorrect beam setting re-
sults in a washed-out
picture (loss of detail
in bright areas), negative picture,
flicker
in
the highlights, double
images or images that
are too large or too small.
;
1-1
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