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3. Filter f
Adjustment (VC-234 board)
0
Adjust the f
frequency of the IC641 built-in filter.
0
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 3 of CN982 (IR VIDEO)
Measuring Instrument
Oscilloscope
(20 MHz BW LIMIT: ON)
Adjustment Page
F
Adjustment Address
66
Specified Value
Minimum residual chroma signal
components
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 4F, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 2, address: 05, and set data: 40.
4)
Select page: F, address: 66, change the data and minimize the
residual chroma signal components (A).
(The data of address: 66 should be "70" to "7F".)
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
7)
Select page: 2, address: 05, and set data: 00.
8)
Select page: 0, address: 01, and set data: 00.
H
Fig. 5-3-7.
4. Y OUT Level Adjustment (VC-234 board)
Set the Y signal output level. (Adjust the D/A converter out put
level of IC641.)
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note1: Hi8 model:
Insert the plug into the S VIDEO terminal.
Standard8 model:
Insert the plug into the VIDEO terminal.
Note2: Hi8 model:
CCD-TR717E/TR918E/TRV67E/TRV87E
Standard8 model:
CCD-TR317E/TR417E/TR427E/TR617E/TRV37E/TRV47E/
TRV48E/TRV57E
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 41, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 6, address: 61, and set data: 30.
4)
Select page: F, address: 67, change the data and set the SYNC
A
level (A) to the specified value.
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 6, address: 61, and set data: 10.
7)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
8)
Select page: 0, address: 01, and set data: 00.
Hi8 model
Standard8 model
5-41
VTR stop
No signal
Hi8 model:
Y signal terminal of S VIDEO
terminal (75Ω terminated)
Standard8 model:
VIDEO terminal (75Ω terminated)
Oscilloscope
F
67
A=300 ± 5mV
H
H
Fig. 5-3-8.
A
A
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