JVC TK-C675BU Service Manual page 23

Measuring
No. Item instrument &
Input signals
21 Auto iris level • Gray scale chart
adjustment (just scan)
• Oscilloscope
(H-rate)
Measuring point (
Adjustment parts (
Mode
Adjustment level (
LENS IRIS: VIDEO output
AUTO 35h (Auto iris level)
<U Ver.>
0.714Vp-p[100 IRE]
<E Ver.>
0.7Vp-p
)
)
Adjustment procedure
)
1) Set the iris to "AUTO".
2) Adjustment the Auto Iris level data so that
the white level at the center of the gray scale
chart at VIDEO output is 0.714Vp-p[100 IRE]
(U Ver.) or 0.7Vp-p (E Ver.).
2-14