Electrical Adjustments; Required Measuring Instruments For Adjustments; Applicable Lens For Adjustments - JVC TK-C400E Service Manual

Color video camera

Table of Contents

To change the setting of adjustment items, use a computer with the adjustment software to change the set value of the EVR for each

adjustment item as well as to store the changed data into the memory of the camera. If any of the following parts is replaced or the

camera needs to adjust settings of itself such as auto white balance, etc., it requires adjustment of the EVR with a computer.

• CCD board

IC 200 CCD Image sensor

• PRO board

IC205 EEPROM

2.1 REQUIRED MEASURING INSTRUMENTS FOR ADJUSTMENTS

2.1.1 Required measuring instruments for adjustments

Instrument

Oscilloscope

Capable of measuring 100MHz or

higher bands and calibrated.

Frequency counter

Readable in 8 or more digits. Constancy

of 0.1 ppm/1 x 10

40°C.

2.1.2 Applicable lens for adjustments

• Manual zoom

• Manual iris

• Filter diameter

The infinity adjustment lens (YTU92001B) is provided with five kinds of screw-in adapters that make it attachable to camera

lenses of five different filter sizes (∅=37, 43, 46, 49 and 52 mm, pitch=0.75 mm each). Use a camera lens whose filter size is any

of the above-mentioned diameters. If is desirable to use a zoom lens that covers the focal length of 20-40 mm (for to the 2/3-inch

image size) or so as an intermediate focal length of its zoom ratio.

• Recommended lens (example)

MODEL

Manufacture

Focal length

Zoom ratio

Zoom operation

Iris range

Iris control

Mount

Filter diameter

Note: Set the camera's back focus adjustment ring to the position appropriate for the camera lens to be used. (Refer to the instruc-

tions.)

SECTION 2