7-1
SECTION 7
ADJUSTMENTS
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 PAL 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 75
Ω
)
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
1.0
±
0.07 Vp-p
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
PLAY
Signal
100% Color bars
Test point
S-VIDEO OUTPUT (S-Y) connector
(terminated in 75
Ω
)
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. 7-2
1.0
±
0.07Vp-p
