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7-2-13.
YH Level Adjustment (CV-8 Board)
Subject
7-2-15.
Setup Adjustment (CV-8 Board)
Subject
All black (cover lens with black cap)
Color bar chart standard picture frame
Point
H)
of check
point
i
8
Measurement Poi
(YR) of
c h e c k point array
Mésiuienent Poser.
{Pit
(VIDEO OUT) of check
Measuring Instrument | Oscilloscope
point array
Adjustment Address
10 (Y GAIN)
Measuring Instrument | Oscilloscope
Specified Value
900 + 40 mVp-p
Adjustment Address
19(SET UP)
Specified Value
20+5mV
Adjustment method:
1) Set the adjustment address to 10 with the adjustment remote
Note: 1) and 2) are steps taken to reduce noise.
commander.
2) Change the adjustment data with the adjustment remote
commander to set the YH signal level to 900 + 40 mVp-p.
3) Change the adjustment address to store the adjustment data
in the memory.
7 Senter of white level
900 + 40 mVp-p
Le
yerceee
Optical black level
Adjustment method:
1)
Set the address to 21 (APERTURE) with the adjustment
remote commander, and enter 00 as the adjustment data after
making a note of the adjustment data for this at address.
2)
Set the address to 28 (MAX GAIN) with the adjustment
remote commander, and enter 00 as the adjustment data after
making a note of the adjustment data for this address.
3)
Set the adjustment address to 19 with the adjustment remote
commander,
4) Change the adjustment data with the adjustment remote
commander to set the setup level to 20 + 5 mV.
5)
Set the adjustment address to 21 and enter the adjustment
data recorded in 1).
6)
Set the adjustment address to 28 and enter the adjustment
data recorded in 2).
as
7)
Change the adjustment address to store the adjustment data
"
in the memory.
Fig. 7-19.
&
7-2-14.
Sync Level Adjustment (CV-8 Board)
a
Center of black level
Center of pedestal
Subject
Alll black (cover fens with black cap) _|
1 tevet
%
Pin
(VIDEO OUT) of check
2025mV
Measurement Point
point array
Measuring Instrument | Oscilloscope
h#—
H ——+f
Adjustment Address
20 (SYNC LEVEL)
Ht
Specified Value
140 + 5mVp-p
Adjustment method:
1)
Set the adjustment address to 20 with the adjustment remote
commander.
2) Change the adjustment data with the adjustment remote
commander to set the sync level to 140 + 5 mVp-p.
3)
Change the adjustment address to store the adjustment data
in the memory.
Center of pedestal level
is
panei
So
ee
Fig. 7-20.
Fig. 7-21.
— 212 —
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