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5. PLL fo & LPF fo Fine Adjustment (VC-262 board)
RadarW
RadarW
RadarW
Mode
VTR stop
Signal
Arbitrary
Measurement Point
Display data of page: 3
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
1F, 20, 22, 29
Specified Value
The data of page: 3, address: 02 is "00".
The data of page: 3, address: 03 is "00".
Adjusting method:
Order Page Address Data
1
0
01
01
2
3
01
30
3
3
02
4
3
03
5
0
01
00
Note1: If it is not satisfied, there are errors.
Note2: If the data is other than "00", there are errors.
For the error contents, see the following table. (For the bit values,
refer to "5-4. SERVICE MODE", "4-3. 3. Bit value discrimination".)
Bit value of page: 3,
Error contents
address: 03
bit 2 = 1 or bit 3 = 1
PLL fo fine adjustment is defective
bit 4 = 1 or bit 5 = 1
PLL fo adjustment is defective
bit 6 = 1
LPF fo is defective
Procedure
Set the data.
Set the data, and press PAUSE
button.
Check that the data changes to
"00" within 10 sec. (Note1)
Check that the data is "00".
(Note2)
Set the data.
6. Hi8/Standard8 Switching Position Adjustment
(VC-262 board)
RadarW
RadarW
RadarW
If deviated in this case causes switching noise or jitter on the Hi8/
Standard8 mode played back screen.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting Method:
Order Page Address Data
1
2
0
01
3
F
22
4
2
2E
5
6
F
62
7
F
62
8
F
63
9
F
63
10
F
22
11
2
2E
12
0
01
CH1
CH2
Enlargement
CH1
CH2
5-49
Playback
Hi8/Standard8 alignment tape:
For tracking adjustment
(WR5-1NP (NTSC)),
(WR5-1CP (PAL))
CH1: Pin 8 of CN1108 (VC RF SWP)
CH2: Pin 5 of CN1108 (PB RF)
Oscilloscope
F
62, 63
t1=0 ± 10 µsec
Procedure
Set to the stop mode.
01
Set the data.
C0
Set the data, and press PAUSE
button.
02
Set the data.
Set to the playback mode.
Change the data and minimize
"t1". (Coarse adjustment)
Press PAUSE button
Change the data and adjust so
that the switching position (t1)
becomes the specified value.
(Fine adjustment)
Press PAUSE button
80
Set the data, and press PAUSE
button.
00
Set the data.
00
Set the data.
t1=0 ± 10 µ sec
Fig. 5-3-6.
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