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Measuring
No.
Item
instrument &
Input signals
2.8 ADJUSTMENT OF VIDEO SIGNAL
1
White clip
Oscilloscope
adjustment
(H-rate: 10:1) or
W.F.M.
Gray scale chart
(Just scan size)
2
Contour level
Oscilloscope
adjustment
(H-rate: 10:1) or
W.F.M.
Gray scale chart
(Just scan size)
Measuring point (*)
Adjustment parts (-)
Mode
Adjustment level (+)
* MONITOR OUT
(75 ohm Termination)
- LENS IRIS
- DAVREFY
[CAT: DCREF, Byte: 1]
+
U-ver.
0.79 Vp-p (110 IRE)
E-ver.
0.77 Vp-p (110%)
* MONITOR OUT
(75 ohm Termination)
- LENS IRIS
+
U-ver.
0.57 Vp-p (80IRE)
E-ver.
0.56 Vp-p (80%)
* MONITOR OUT
(75 ohm Termination)
- VHAPGH
[CAT: FIELD, Byte: 3]
+
U-ver.
0.714 Vp-p (100IRE)
E-ver.
0.7 Vp-p (100%)
Adjustment procedure
1) Select the "NEXT" button to display "White
clip" on the title bar.
2) Turn the lens iris so that the wavefrom of
grayscele is saturated as shown left figure.
3) Adjust the DAVREFY with " " and " " but-
tons to obtain the specified level at the meas-
uring point.
1) Select the "NEXT" button to display "Con-
tour level" on the title bar.
2) Adjust the lens iris to obtain the specified level
at the measuring point.
3) Adjust the VHAPGH with " " and " " but-
tons to obtain the specified level at the meas-
uring point.
2-7
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