Read Sony DVP-NS758HP Service Manual online
7-4
DVP-NS758HP
7-2. ADJUSTMENT OF VIDEO SYSTEM
1.
Checking Video Level
<Purpose>
Checking Video Level the NTSC/PAL standard, and if not correct,
the brightness will be too large or small.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
LINE OUT (VIDEO) connector
(75 Ω terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.08 Vp-p/ 75 Ω termination
Adjusting method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the Video Level is 1.0 ± 0.08 Vp-p.
Fig. 7-1.
2.
Checking Component Video Output Y
<Purpose>
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
COMPONENT VIDEO OUT (Y)
connector, (75 Ω terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.08 Vp-p/ 75 Ω termination
Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the Y level is 1.0 ± 0.08 Vp-p.
Fig. 7-2.
1.0 ± 0.08 Vp-p/
75 termination
1.0 ± 0.08 Vp-p/
75 termination
3.
Checking Component Video Output B-Y
<Purpose>
This checks component video output B-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance,
projector.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
COMPONENT VIDEO OUT (P
B
)
connector (75 Ω terminated)
Instrument
Oscilloscope
Specification
B = 700 ± 70mVp-p/ 75 Ω termination
Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the B-Y level is B.
Fig. 7-3.
4.
Checking Component Video Output R-Y
<Purpose>
This checks component video output R-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance,
projector.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
COMPONENT VIDEO OUT (P
R
)
connector (75 Ω terminated)
Instrument
Oscilloscope
Specification
B = 700 ± 70 mVp-p/ 75 Ω termination
Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the R-Y level is B.
Fig. 7-4.
B
B
7-2E
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