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2. Filter f0 Adjustment (VC-197 board)
Minimize the chroma signal residual components during composite
video signal input.
Note : Do not insert a plug into the S video terminal.
Mode
VTR stop
Signal
Color bar (Video input)
Pin 9 of CN207 (EZ I/O)
Measurement Point
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
5A
Specified Value
Minimum residual chroma signal
components
Adjusting method:
1)
Set page: 0, address: 01, data: 01.
2)
Set page: 3, address: 01, data: 33 and press the PAUSE button
of the adjusting remote commander.
3)
Change the data of page: F, address: 5A, and minimize the
residual chroma signal components (A).
4)
Press the PAUSE button of the adjusting remote commander.
5)
Set page: 3, address: 01, data: 00 and press the PAUSE button
of the adjusting remote commander.
6)
Set page: 0, address: 01, data: 00.
Residual chroma component
Before
adjustment
H
After
adjustment
H
Fig. 5-3-9.
Residual chroma
component (A)
5-27
3. Y OUT Level Adjustment (VC-197 board)
Set the Y signal output level.
Note : Insert the plug into the S video terminal.
Mode
VTR stop
Subject
Arbitrary
Measurement Point
Y signal terminal of S VIDEO
terminal (75Ω terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
56
Specified Value
A = 286 ± 5 mV (NTSC)
A = 300 ± 5 mV (PAL)
Adjusting method:
1)
Set page: 0, address: 01, data: 01.
2)
Set page: 3, address: 01, data: 41 and press the PAUSE button
of the adjusting remote commander.
3)
Change the data of page: F, address: 56, and set the SYNC
level (A) to the specified value.
4)
Press the PAUSE button of the adjusting remote commander.
5)
Set page: 3, address: 01, data: 00 and press the PAUSE button
of the adjusting remote commander.
6)
Set page: 0, address: 01, data: 00.
H
Fig. 5-3-10.
A
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