Appendix; Precautions; Digital Triax Transmission (When Hkc-Tr37 Is Attached) - Sony HDC3500 Operating Instructions Manual

Appendix

Precautions

Note on laser beams
Laser beams may damage the CMOS image sensor. If you
shoot a scene that includes a laser beam, be careful not to let
a laser beam become directed into the CMOS image sensor of
the camera.
Do not subject to severe shocks
Damage to the case or internal components may result.
When finished using
Set the power switch to OFF.
Operation and storage environment
Store in a level place with air conditioning.
If the unit gets wet, make sure it is completely dry before
storage.
Avoid use or storage in the following places:
• Extremely hot or cold places
• Places with high humidity
• Places with strong vibration
• Near strong magnetic fields
• In places where it receives much direct sunlight, or near
heating equipment
Condensation
If the unit is suddenly taken from a cold to a warm location, or
if ambient temperature suddenly rises, moisture may form on
the outer surface of the unit and/or inside of the unit. This is
known as condensation. If condensation occurs, turn off the
unit and wait until the condensation clears before operating
the unit. Operating the unit while condensation is present may
damage the unit.
About consumable parts
• The fan and battery are consumable parts that will need
periodic replacement.
When operating at room temperature, a normal replacement
cycle will be about 5 years.
However, this replacement cycle represents only a general
guideline and does not imply that the life expectancy of
these parts is guaranteed. For details on parts replacement,
contact your dealer.
• The life expectancy of the electrolytic capacitor is about
5 years under normal operating temperatures and normal
usage (8 hours per day; 25 days per month).
If usage exceeds the above normal usage frequency, the life
expectancy may be reduced correspondingly.
Camera CMOS image sensor phenomena
Note
The following phenomena that may occur in images are
specific to image sensors. They do not indicate a malfunction.
White flecks
Although the image sensors are produced with high-precision
technologies, fine white flecks may be generated on the
screen in rare cases, caused by cosmic rays, etc.
This is related to the principle of image sensors and is not a
malfunction.
The white flecks especially tend to be seen in the following
cases:
• When operating at a high environmental temperature
• When you have raised the gain (sensitivity)
Flicker
If shooting under lighting produced by fluorescent lights,
sodium lamps, mercury-vapor lamps, or LEDs, the screen may
flicker or colors may vary.
To prevent electromagnetic interference from
portable communications devices
The use of portable telephones and other communications
devices near this camera can result in malfunctions and
interference with audio and video signals.
It is recommended that the portable communications devices
near this camera be powered off.
Digital Triax Transmission (when
HKC-TR37 is attached)
A powerful error-correction function is incorporated for the
transmission between the camera and CCU. However, if an
error occurs on long-distance transmission because of
external noise or for some other reason, the compensation by
interpolation that partially uses the previous picture may
operate.
In digital triax transmission, the following video delay in
transmission may occur.
• The video delay in transmission between the camera and
the CCU is approx. 9 ms to 12 ms.
• A delay of about 1 frame occurs on the viewfinder display if
a camera image is sent back from the CCU to the camera as
a return signal.
• An appropriate delay is applied to the MIC 1 and 2 audio
signals from the CCU to match the video delay.
• A certain time is required for the video signal transmitted
between the camera and the CCU to stabilize after power is
applied. This is not a malfunction.
Triax Transmission Distances
The maximum and minimum transmission distances allowed
for triax cable connection are shown in the table below. The
distances may vary according to the conditions, such as the
total power requirements (including the power supply to the
camera from the CCU) and cable degradation.
Allowable transmission range when using triax cables with the
following characteristics:
Attenuation: 3.8 to 68.4 dB at 100 MHz (including the
connector loss)
Cable type (example)
Fujikura 8.5 mm dia.
Fujikura 14.5 mm dia.
Belden 9232 13.2 mm dia.
55
Max. distance Min. distance
900 m (2953 ft) 50 m (164 ft)
1800 m (5906 ft) 100 m (328 ft)
1300 m (4265 ft) 75 m (246 ft)