Adjustment Of Video System Except (Dvp-Ns28/Ns38/Ns39) - Sony DVP-NS38 Service Manual

DVP-NS28/NS38/NS39/NS47P/NS57P/NS64P/NS67P
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7-3. ADJUSTMENT OF VIDEO SYSTEM
EXCEPT (DVP-NS28/NS38/NS39)
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
Signal
Test point
Instrument
Specification
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.
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,
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projector.
Mode
Signal
Test point
Instrument
Specification
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.
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http://www.xiaoyu163.com
HLX-504 play back
Color bars 100%
LINE OUT (VIDEO) connector
(75 Ω terminated)
Oscilloscope
1.0 ± 0.08 Vp-p
1.0 ± 0.08 Vp-p
Fig. 7-1.
HLX-504 play back
Color bars
COMPONENT VIDEO OUT (Y)
connector, (75 Ω terminated)
Oscilloscope
1.0 ± 0.08 Vp-p
1.0 ±0.08 Vp-p
Fig. 7-2.
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y
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8
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
Signal
Test point
Instrument
Specification
Checking method:
(1) In the Video Signal menu "1" Color Bar 100% play back.
(2) Confirm that the B-Y level is A.
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
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Signal
Test point
Instrument
Specification
Checking method:
(1) In the Video Signal menu "1" Color Bar 100% play back.
(2) Confirm that the R-Y level is B.
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HLX-504 play back
Color bars
COMPONENT VIDEO OUT (P
connector (75 Ω terminated)
Oscilloscope
A = 700 ± 70 mVp-p
A
Fig. 7-3.
HLX-504 play back
1 5 0 5 8 2 9 9 4
Color bars
COMPONENT VIDEO OUT (P
connector (75 Ω terminated)
Oscilloscope
B = 700 ± 70 mVp-p
B
Fig. 7-4.
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B
2 8 9 9
)
R