JVC TK-C920BU Instructions For Use

TK-C920BU/TK-C920BE
TK-C921BEG
These are general IMPORTANT SAFEGUARDS and certain items may not apply to all appliances.

IMPORTANT SAFEGUARDS

1. Read all of these instructions.
2. Save these instructions for later use.
3. All warnings on the product and in the operating instructions should be adhered to.
4. Unplug this appliance system from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
5. Do not use attachments not recommended by the appliance manufacturer as they may cause hazards.
6. Do not use this appliance near water - for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a
swimming pool, etc.
7. Do not place this appliance on an unstable cart, stand, or table. The appliance may fall, causing serious injury to a child or
adult, and serious damage to the appliance may fall, causing serious injury to a child or adult, and serious damage to the
appliance.
Use only with a cart or stand recommended by the manufacturer, or sold with the appliance. Wall or shelf mounting should
follow the manufacturer's instructions, and should use a mounting kit approved by the manufacturer.
An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may
cause the appliance and cart combination to overturn.
8. Slots and openings in the cabinet and the back or bottom are provided for ventilation, and to
insure reliable operation of the appliance and to protect it from overheating, these openings
must not be blocked or covered. The openings should never be blocked by placing the appliance on a bed, sofa, rug, or other similar surface.
This appliance should never be placed near or over a radiator or heat register. This appliance should not be placed in a built-in installation such
as a bookcase unless proper ventilation is provided.
9. This appliance should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power
supplied to your home, consult your dealer or local power company. For appliance designed to operate from battery power, refer to the operating
instructions.
10. This appliance system is equipped with a 3-wire grounding type plug (a plug having a third (grounding) pin). This plug will only fit into a
grounding-type power outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your
obsolete outlet. Do not defeat the safety purpose of the grounding plug.
11. For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from
the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and power-line surges.
12. Do not allow anything to rest on the power cord. Do not locate this appliance where the cord will be abused by persons walking on it.
13. Follow all warnings and instructions marked on the appliance.
14. Do not overload wall outlets and extension cords as this can result in fire or electric shock.
15. Never push objects of any kind into his appliance through cabinet slots as they mat touch dangerous voltage points or short out parts that could
result in a fire or electric shock. Never spill liquid of any kind on the appliance.
16. Do not attempt to service this appliance yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer
all servicing to qualified service personnel.
17. Unplug his appliance from the wall outlet and refer servicing to qualified service personnel under following conditions:
a. When the power cord or plug is damaged or frayed.
b. If liquid has been spilled into the appliance.
c. If the appliance has been exposed to rain or water.
d. If the appliance does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating
instructions as improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to
restore the appliance to normal operation.
e. If the appliance has been dropped or the cabinet has been damaged.
f. When the appliance exhibits a distinct change in performance - this indicates a need for service.
18. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer that have the
same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
19. Upon completion of any service or repairs to this appliance, ask the service technician to perform routine safety checks to determine that the
appliance is in safe operating condition.
For USA and CANADA
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
A
C
VIDEO
DC
LEVEL
IRIS
VIDEO
DC
L H
LEVEL
COLOR VIDEO CAMERA
E
q w
IRIS
VIDEO
DO
L H
LEVEL
COLOR VIDEO CAMERA
e
(x2: M2.6 x 6mm)
IRIS
VIDEO
DO
L H
LEVEL
COLOR VIDEO CAMERA
G
IRIS
VIDEO
DC
L H
LEVEL
LEVEL
BF LOCK
ALC
For Customer Use:
Enter below the Serial No. which is located on the body.
Retain this information for future reference.
Model No.
Serial No.
The lightning flash with arrowhead symbol, within an equi-lateral triangle,
is intended to alert the user to the presence of uninsulated "dangerous volt-
age" within the product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.
B
F
(b)
(c)
D
(d)
F
4 mm
2 mm
TK-C920BU/BE
(e)
6mm
ON- D / N
OFF ON- AGC
OFF
ON- AES
2mm
OFF ON- BLC
OFF MAM U
B
AUT O R
INT
WHT .
LL
PHA SE BAL
LCD
CRT
FOC US RES ET
ADJ UST
ON
OU T TRU CTI
SEE INS MA NUA L
VID EO
TK-C921BEG
COLOR VIDEO CAMERA
Thank you for purchasing the JVC color video camera.
To obtain the best results from your new camera, read these instructions carefully before use; retain the manual for future reference.
WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
INFORMATION (FOR CANADA) RENSEIGNEMENT (POUR LE CANADA)
This Class [B] digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
Due to design modification, data given in this instruction book are subject to possible change without prior notice.
PRECAUTIONS
• Picture may not appear correctly if white-spot correction is performed incorrectly. Follow the steps listed in the instructions. (Reference:
White-spot correction ∆ I) Do not perform this operation when there are no white spots.
• If the AGC switch is turned on, the sensitivity increases automatically in dark places. It is not a failure when the image looks grainy.
• If the D/N switch is turned on, the mode changes automatically to black and white in dark places. As the sensitivity increases, the image
may look grainy and white spots may appear. When changing modes, bright portions of image may be emphasized but this is not a
failure of the camera.
• If a zoom lens is used, check the back focus before mounting the camera. This also applies to lens ALC and LEVEL. (See the instructions
on lenses for details.)
• If a high-intensity object (such as a lamp) is shot, the image on the screen may have vertical lines (smear) or blur (blooming) at its
PORTABLE CART WARNING
periphery (especially in AES mode). This is a characteristic of the CCD, and is not a defect.
(symbol provided by RETAC)
• If an EE lens is used, set the automatic electronic shutter switch (AES) to OFF. If set to ON, flickering may occur. If a manual iris lens is
used, set the AES to ON.
• When used in hot places, vertical lines may appear on the screen of this camera. This is a characteristic of the CCD and not a failure of the camera.
• The automatic tracking system may not function properly when shooting with non-standard lighting or lighting with a color temperature
which exceeds the capability of the camera. In such a case, set to the "MANU" position.
• If the camera subject is a single solid color (other than white), the auto white circuit will normally attempt to change this color to white.
In the case of this camera, if it cannot make a correct prediction, the previous white balance setting will be maintained until the subject
colors become more varied.
S3125A
• Noise may appear in the picture and/or the colors may be incorrect if the camera is used near a radio or television transmitting antenna,
in places where strong electromagnetic waves are generated by transformers, motors, etc., or near devices emitting radio waves, such
as transceivers or cellular phones.
• To save energy, be sure to turn off the system when not in use.

OPERATING PRECAUTIONS

Storage and Location of Use
1. This camera has been designed for indoor use .When you use it outdoors, be sure to use a housing or the like.
2. DO not install or use the camera in the following places.
• In a place exposed to rain or moisture.
• In a place with vapor or oil, for example in a kitchen.
• When the ambient temperature rises above or falls below the acceptable range(from -10 °C to 50 °C)
• In a place at which corrosive gases are emitted.
• Near a source of radiation, X-rays, strong radio waves or magnetism.
• In a place subject to vibration.
• In a place with excessive dirt.
3. Using this unit or cables connected to this unit at places at which strong radio waves and magnetism are emitted (e. g. near a
radio, TV, transformer or motor)may give rise to noises in the image and changes in its color.
MOUNTING A LENS
1. Before mounting a lens, check whether it is a C-mount or CS-mount lens.
If a C-Mount lens is used, loosen the back-focus locking screw (M 2.6) using a Phillips head screwdriver, turn the back-
focus adjusting ring with your fingers or the screwdriver and change the mounting method.
2. Dimension (b) of the lens shown in the illustration must be as shown in the table below. If (b) exceeds the value in the table,
it may damage the inside of the camera or correct mounting may be impossible; never use such lenses. Do not attach the
C-mount lens when using a CS-mount.
Lens Flange back (c)
C mount lens 17.526mm
CS mount lens 12.5mm
The F mark indicates a focal point.
3. Mount the lens on the camera by turning the lens clockwise. Adjust its position.
4. When using an auto-iris lens with an EE amplifier, turn the switch to the "VIDEO" side. When no EE amplifier is equipped,
turn the switch to the "DC" side.
5. If the lens has an auto-iris mechanism,
Connect the lens cable after checking the pin arrangement.
Lens DC IRIS
Pin No. (does not contain EE amplifier)
1 Brake –
2 Brake +
+
3 Drive
4 Drive –
* 4 pin plug: For details, please consult your JVC dealer.
CONNECTION
1. When the camera is powered, the image appears.
CAMERA type
TK-C920BU AC 24V ~ (class 2 only) or DC 12V
TK-C920BE AC 24V ~ (isolated power only) or DC12V
TK-C921BEG AC 220V to 240V ~ (The power cable is 2500mm in length.)
The rated power of this product is AC 24 V, (BU : 60 Hz/BE : 50 Hz). Make sure to use it with the correct voltage.
Use an AC 24 V supply that is isolated at the primary end.
Supplying a power beyond the rated value may result in failures and in the worst scenario, smoking or fire. When the camera breaks
down, turn off the power, and contact our service center immediately.
When a power beyond the rated value is supplied, the internal components may be damaged even if no abnormality is found on the
appearance and operation of the camera.
Please contact our service center immediately for servicing (charged separately).
TK-C920BU/BE only:
• Never connect the DC 12V and AC 24V power inputs simultaneously.
• Be sure to observe the correct +, – polarity when connecting a DC 12V power input.
TK-C921BEG only: When you use this camera, the socket outlet must be installed near the equipment to make disconnect on easily.
2. Connect to a video monitor, etc. (75Ω)
3. To install the camera onto a tripod, fixing unit, or pan/tilt unit, use the fall-preventive socket (d) shown in the illustration.
Special precautions must be taken for mounting the camera on a wall or a ceiling.
We are not liable for any damage caused by improper installation.
4. Installation of camera
• Mounting from the bottom
This camera is originally designed to be mounted from the bottom, as shown q. The hole is standard photographic pan-
head screw size (1/4-20 UNC). Example the Fixing unit or Pan/Tilt unit.
• Mounting from the top
Remove the CAMERA MOUNTING BRACKET (e) from the bottom of the camera by removing two fixing screws as shown w. Attach the
CAMERA MOUNTING BRACKET (e) to the top, then mount the camera on the Fixing Unit as shown e. Make sure that two original screws
are used when mounting the CAMERA MOUNTING BRACKET (e); longer type screws (over 5mm) may damage inner components.
(This camera has been designed for indoor use.)
• Ask a professional to replace the camera-mounting.
• Use a camera-mounting screw with a length between 5mm and 7mm from the camera-mounting face.
Fall Prevention
• Exercise maximum caution when installing the unit to the wall or ceiling. You should not engage in the installation work
yourself. Ask a professional to do the job, since a falling unit can result in injuries and accidents.
• When installing the unit on a fixer, turn table, etc., make sure to install it firmly using a rotation-preventing hole provided to
prevent fall.
• As a failsafe against falling, attach the unit by chain, wire cable or other safety restraint to an appropriate anchor point.
Attach the fall prevention wire using the black screw on the upper surface of the camera as shown in figure F. When
changing the side at which CAMERA MOUNTING BRACKET is installed, be sure to change the attachment side of the fall
prevention wire also to the appropriate side.
• Specified screw (TK-C920BU/BE: M2.6 × 4 mm, TK-C921BEG: M3 × 6 mm)
Never use any screw longer than the specified length as the inside can be damaged.
• Before use make the fall prevention wire as short as possible.
• Use a fall prevention wire of sufficient strength and terminal treatment to support the weight of the camera, lens and fixer.
• To prevent fall, connect the camera to a section with sufficient strength (ceiling slab or channel)using a fall prevention wire.
LENS ADJUSTMENT
Video adjustment
Connect the camera according to the connection method, turn it on, display an image on the monitor, and check the image. The camera
has been factory-adjusted to the best position, but it may need to be adjusted according to the object conditions or combination of lenses.
If the image is unnatural, adjust it as follows:
• LEVEL adjustment
Monitor screen
Too bright
Too dark
• ALC adjustment
Monitor screen
Part (high-intensity part) of the screen halates.
Other part of screen (except high-intensity part) darkens.
* If the sensitivity adjustment LEVEL is turned excessively to L, the sensitivity increases because of the AGC function of the camera, and
the image looks grainy.
* If the video iris lens is set to too low a level, malfunction such as the hunting phenomenon, in which the iris opens or closes unintention-
ally, may occur.
In such a case, first set LEVEL potentiometer on the lens to the H (iris open) position then adjust it to the optimum level.
Instructions
Dimension (b)
10mm or less
5.5mm or less
1 3
VIDEO IRIS
(contain EE amplifier)
9V [Max. 50 mA]
NC
VIDEO
GND
2 4
Power
Warning
LEVEL turning direction
Counterclockwise (Toward L)
Clockwise (Toward H)
ALC turning direction
Clockwise (Toward Pk)
Counterclockwise (Toward Av)
∆A
∆B
∆C
∆D
∆E
∆F
∆G