Others, White spot compensation, Specifications

White spot compensation

CCDs have the general characteristic that white spots appear on the screen when the CCD is operated at high temperatures or when they are used with a slow shutter speed.

This unit has a built-in white spot compensation function to reduce these white spots.

(The number and the size of the white spots changes according to the use temperature, the shutter speed, etc. Furthermore, there is a limit on the number of white spots that can be compensated.)

OTHERS

Specifications

Image pickup device:	1/3 type IT CCD, 752 (H) ⋅ 582 (V)
Synchronization method :	Internal, Line lock, Full Genlock
Scanning frequency:	(H) 15.625 kHz, (V) 50 Hz
Resolution:	480 TV lines (H)
VIDEO OUT:	Composite video signal 1 V (p-p), 75 1 (BNC)
Y/C OUT:	Y: 1.0 V (p–p), 75 1
	C: 0.3 V (p–p), 75 1
Video S/N ratio:	50 dB (AGC OFF)

Operation method

MA I N T E NA N C E

C C D S P OT . .

C CD S P OT

C ANCE L E X E CU TE

h e a t u p 3 0 m i n i n a d v a n c e n e e d L e n s – c a p t o e x e c u t e

1.Attach a lens cap or similar.

•Prevent entry of light to the CCD.

•Switch on the camera power supply and wait for at least 30 minutes.

2.Display the MAINTENANCE screen.

•Confirm that the cursor (>) is at the item

CCD SPOT.

3.Press the SET button.

•The CCD SPOT screen will be dis- played.

•If you do not want to perform white spot compensation, move the cursor (>) to CANCEL and press the SET button.

4.Move the cursor (>) to EXECUTE.

5.Press the SET button.

•White spot compensation will operate. (“SPOT SCAN OPERATION” is dis- played during operation.)

Minimum required illumination:

0.9 lx (50 %, F1.2, AGC 20 dB)

0.45lx (50 %, F1.2, AGC 20 dB, LOLUX MODE)

0.45lx (25 %, F1.2, AGC 20 dB)

0.23lx (25 %, F1.2, AGC 20 dB, LOLUX MODE)

0.03lx (50 %, F1.2, AGC 20 dB, B&W MODE)

0.015 lx (50 %, F1.2, AGC 20 dB, LOLUX MODE, B&W MODE) 0.015 lx (25 %, F1.2, AGC 20 dB, B&W MODE)

0.03lx (50 %, F1.2, AGC 20 dB, SENSE UP ⋅ 32)

0.014 lx (50 %, F1.2, AGC 20 dB, LOLUX MODE, SENSE UP ⋅ 32)

Communication:	RS-422A or RS-485 (switchable)
	9600 bit/s
Lens mount:	C/CS mount

—

Power supply and power consumption: TK-C1430E AC 24 V ` 50 Hz/60 Hz, DC 12 V --- 530 mA TK-C1431EG AC 220 V – AC 240 V `, 50 Hz/60 Hz, 75 mA

Ambient temperature:		–10 °C to 50 °C (operation)
		0 °C to 40 °C (recommended)
Mass:		TK-C1430E	620 ˝
		TK-C1431EG 840 ˝
Accessory:		Instructions	2	Ferrite core	..................... 1
		4P plug	1
DIMENSIONS (Unit: mm)
	70	149
39	U1-32	138			2400

S P OT SCAN OK

6.Confirm the display.

•When white spot compensation has been performed correctly, “SPOT SCAN OK” is displayed for about 5 seconds, and then return is made to the CCD SPOT screen.

•When “SPOT SCAN ERROR: HIGH LIGHT” is displayed, check that no light enters into the CCD.

7.Press the MENU button.

•Return to the MENU screen will be made.

55	63
35
42		(TK-C1431EG)
42	41	1/4 – 20UNC
71	41	1/4 – 20UNC

Design and specifications are subject to change without notice.

E-42				E-43

TK-C1431 specifications

The JVC TK-C1431 is a high-performance CCTV camera designed for professional surveillance applications. Its compact design and versatile features make it an excellent choice for various environments, including retail, transportation, and public spaces. This camera is known for delivering exceptional image quality and reliable performance in diverse lighting conditions.

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