Features And Notes On Use - Sony DXC-325P Service Manual

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7. GENERAL Drsunir iia
Features and Notes on Use
The DXC-325/325P is a newly designed portable color
video camera employing three 1/2-inch Charge Coupled
Device (CCD) imagers each having a total of
250,000/290,000 (for the NTSC and PAL models
respectively) effective picture elements. The
DXC-325/325P is normally used with the CA-325/325P
camera adaptor as a single camera unit, but, if necessary,
it can be separated from the camera adaptor and can be
used with a variety of different units which will be
introduced in the market in the near future. The camera
can be used for outdoor recording when used with a
portable video cassette recorder, and can also be used as
a studio camera when connected to a CCU- M3/M3P
camera control unit.
Adoption of CCD
¢ Incorporation of a CCD results in a compact, lightweight
camera body which consumes less power than
does a camera using pickup tubes).
¢ Low lag, high resistance to image burning and no
deflection distortion.
¢ The CCD is not affected by vibration and mechanical
shock.
¢ The CCD imager is not influenced by terrestrial
magnetism.
© Thanks to the high signal-to-noise ratio, the video output
level can be raised by 9 dB or 18 dB to obtain a clear
picture under low light conditions.
¢ The electronic shutter is built into the imagers and
enables the DXC-325/325P to produce clear images even
when the objects it is shooting are moving at very high
speeds. The advantages of this function are most
obvious during playback of still or slow motion pictures.
Various connection capability
¢ The camera can be used as a studio camera when
connected to a CCU-M3/M3P camera control unit.
* The camera can be connected to an S-VHS format VTR.
¢ If aspecial adaptor (will be introduced in the near future)
is attached to the DXC-325/325P camera head, it can
output an RGB format signal.
Power sources
© A compartment for the NP-1A battery pack is built into
the camera adaptor. The camera and 1.5-inch viewfinder
can be used for about 120 minutes with a fully charged
NP-1A (optional).
© The power can be supplied to the camera from a
portable VTR or from the CCU-M3/M3P camera control
unit.
* A CMAS/8CE camera adaptor (optional) is needed if the
camera is to be used with the AC power source.
| Features
Automatic adjustment and memory functions
¢ The white balance and black balance are automatically
adjusted by a microcomputer, and the adjusted values
are retained for about 12 hours while the camera's
power is off.
¢ The black level drift is automatically adjusted, together
with the black balance.
¢ lf the entire picture is too bright, the black level is
lowered to the appropriate level by the automatic black
level (ABL) adjustment so that a picture with good
contrast can be obtained.
Display and related functions
¢ The character generator built into the camera displays
title characters to be inserted on the viewfinder or
monitor during recording.
¢ In addition to title characters, the operational status of
the camera and the warning indications are also
displayed on the viewfinder.
¢ The REC indicator on the viewfinder blinks if a VTR
malfunctions.
¢ Zebra pattern appears on the viewfinder screen when
the video output level is about 70 to 80 IRE (for NTSC
model) or 490 to 560 mV (for PAL model). This pattern
provides a useful reference when the operator manually
adjusts the iris.
Cordless electrical connection to the VCL-810BX
camera lens unit
e The DXC-325/325P is equipped with a pin-type lens
connector which connects directly to the electrical
circuitry of the lens unit. The lens can thus be controlled
from the video camera without using a lens cable.
Location of controls to avoid misoperations
¢ The switches which are not used frequently are located
behind the cover on the side panel so that you can
forget about possible misoperations while you are using
the video camera.
Newly designed camera body and Iens grip
¢ The camera will be well balanced on your shoulder when
holding it with the lens grip. in addition, you can see to
your right over the camera body while you are shooting.
DXC - 325 (UC)
DXC - 325P (EK)