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3. VCO Adjustment (PD-71 board)
Set the VCO freerun frequency.
If deviated, the LCD screen will be blur.
Mode
VTR Playback
Signal
Optional recorded tape
Pin !™ of IC5801 (HSY) (CL5800)
Measurement Point
Measuring Instrument
Frequency counter
Adjustment Page
D
Adjustment Address
D1
f = 15734 ± 30 Hz (NTSC)
Specified Value
f = 15625 ± 30 Hz (PAL)
Adjusting method:
1) Set data: 01 to page: 1, address: 00.
2) Set data: 03 to page: 2, address: 49.
3) Change the data of page: D, address D1, and set the HSY signal
frequency (f) to the specified value.
4) Press the PAUSE button of the adjusting remote commander.
5) Set data: 00 to page: 2, address: 49.
6) Set data: 00 to page: 1, address: 00.
4. Horizontal Display Position Adjustment (PD-71 board)
Adjust the LCD horizontal position.
If deviated, the screen will deviate to the left or right.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
1) Set data: 01 to page: 1, address: 00.
2) Change the data of page: D, address: D0, and set the time
difference (T) between the SYNC waveform and HSY waveform
to the specified value.
3) Press the PAUSE button of the adjusting remote commander.
4) Set data: 00 to page: 1, address: 00.
H
XHD
XSY
XHD
2.0V
HSY
T
2.0V
6-24
VTR Playback
Optional recorded tape
CH1: Pin 5 of CN5600 (XHD)
(CL5610)
CH2: Pin !™ of IC5801 (HSY)
(CL5800)
Oscilloscope
D
D0
T = 2.25 ± 0.1 µsec. (NTSC)
T = 2.00 ± 0.1 µsec. (PAL)
Enlargement
Fig. 6-1-16.
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