Read Sony DVP-NS308 / DVP-NS38 / DVP-NS39 Service Manual online
7-2
DVP-NS38/NS39/NS308
7-2. ADJUSTMENT OF VIDEO SYSTEM
1.
Checking Video Level
(DVP-NS308 ONLY)
(DVP-NS308 ONLY)
<Purpose>
Checking Video Level the NTSC/PAL standard, and if not correct,
the brightness will be too large or small.
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
(75
Ω terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.08 Vp-p
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.
(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 Scart Video Output Level (Video Mode)
<Purpose>
Check scart video output level. If it is incorrect, correct brightness
will be too large or small.
Check scart video output level. If it is incorrect, correct brightness
will be too large or small.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
VIDEO OUT (19p)
connector (75 W terminated)
connector (75 W terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.08 Vp-p
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.
(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. 7-2.
1.0 ± 0.08 Vp-p
3.
Checking Scart S Video Output S-Y
(S-Video Mode)
(S-Video Mode)
<Purpose>
Check S-terminal video output. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with a S-terminal
cable.
Check S-terminal video output. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with a S-terminal
cable.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
S VIDEO OUT (S-Y) (19p)
(75
(75
Ω terminated)
Instrument
Oscilloscope
Specification
1.0 ± 0.08 Vp-p
Checking method:
1)
1)
In the Video Signal menu “1” Color Bar 100% play back.
2)
Confirm that the S-Y level is 1.0 ± 0.08 Vp-p.
Fig. 7-3.
4.
Checking Scart S Video Output S-C
(S-Video Mode)
(S-Video Mode)
<Purpose>
This checks whether the S-C satisfies the NTSC/PAL standard. If it is
not correct, the colors will be too dark or light.
This checks whether the S-C satisfies the NTSC/PAL standard. If it is
not correct, the colors will be too dark or light.
Mode
HLX-504 play back
Signal
Color bars 100%
Test point
S VIDEO OUT (S-C) (15p)
(75
(75
Ω terminated)
Instrument
Oscilloscope
Specification
A = 286 ± 50 mVp-p (NTSC)
A = 300 ± 50 mVp-p (PAL)
A = 300 ± 50 mVp-p (PAL)
Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the S-C burst is “A”.
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the S-C burst is “A”.
Fig. 7-4.
A
1.0 ± 0.08 Vp-p
1.0 ±0.08 Vp-p
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