Adjustments; Video System Adjustment - Sony RDR-HXD790 Service Manual
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Also See for RDR-HXD790:
- Operating instructions manual (168 pages) ,
- Re-tuning manual (2 pages)
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RDR-HXD790/HXD795/HXD890/HXD895/HXD990/HXD995/HXD1090/HXD1095
7-1.
Video System Adjustment
Preparing for Adjustment
1. Equipments
• Oscilloscope
• Reference Disk
HLX-507 (PAL single layer disc) J-6090-077-A
HLX-506 (PAL dual layer disc) J-6090-078-A
1. Video Output Level Check
<Purpose>
This check is made to satisfy the P A L signal standard, If it is adjusted
incorrectly, brightness will be too bright or too dark.
Mode
PLAY
Signal
100% Color bars
Test point
Output (VIDEO) connector
(terminated in 75Ω)
Instrument
Oscilloscope
Specification
1.0 V± 0.07 Vp-p
Check method:
1)
Insert the PAL reference disc and play back the 100% color
bars.
2)
Confirm that the video level is 1.0 V±0.07 Vp-p.
Fig. 7-1
SECTION 7
ADJUSTMENTS
2. S-Video Output S-Y Check
<Purpose>
This check confirms that the S-video Y-signal output has the rated
amplitude. If it adjusted incorrectly, the playback video signal will
not be displayed corrected even when the S-video cable is connected.
Mode
Signal
Test point
Instrument
Specification
Check method:
1)
Insert the PAL reference disc and play back the 100% color
bars.
2)
Confirm that the video level is 1.0 V±0.07 Vp-p.
1.0 ± 0.07 Vp-p
7-1
PLAY
100% Color bars
S-VIDEO OUTPUT (S-Y) connector
(terminated in 75Ω)
Oscilloscope
1.0 V±0.07 Vp-p
1.0 ± 0.07Vp-p
Fig. 7-2
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