Sony DVP-NS3100ES Service Manual page 21

6-2-4. Checking S Video Output S-C
<Purpose>
This checks whether the S-C satisfies the NTSC standard. If it is
not correct, the colors will be to dark or light.
Mode Video level adjustment in test mode
Signal Color bars
Check point S VIDEO OUT (S-C) connector (J501)
(75 Ω terminated)
Instrument Oscilloscope
A = 286 ± 30 mVp-p
Specification
Checking method:
1) In the Test Mode Menu, select the "6. Video Level Adjustment"
so that color bars are generated.
2) Confirm that the S-C burst is "A".
Fig. 6-4
6-2-5. 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 Video level adjustment in test mode
Signal Color bars
Check point COMPONENT VIDEO OUT (Y)
connector (J620) (75 Ω terminated)
Instrument Oscilloscope
1.0 ± 0.05 Vp-p
Specification
Checking method:
1) In the Test Mode Menu, select the "6. Video Level Adjustment"
so that color bars are generated.
2) Confirm that the Y level is 1.0 ± 0.05 Vp-p.
Fig. 6-5
6-2-6.
<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
Check point
Instrument
Specification
Checking method:
1) In the Test Mode Menu, select the "6. Video Level Adjustment"
so that color bars are generated.
2) Confirm that the B-Y level is 700 ± 50 mVp-p.
A
6-2-7.
<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
Signal
Check point
Instrument
Specification
Checking method:
1) In the Test Mode Menu, select the "6. Video Level Adjustment"
so that color bars are generated.
1.0 ± 0.05 Vp-p 2) Confirm that the R-Y level is 700 ± 50 mVp-p.
DVP-NS3100ES
Checking Component Video Output B-Y
Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (P
connector (J660) (75 Ω terminated)
Oscilloscope
700 ± 50 mVp-p
Fig. 6-6
Checking Component Video Output R-Y
Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (P
connector (J102) (75 Ω terminated)
Oscilloscope
700 ± 50 mVp-p
Fig. 6-7
/C )
B B
700 ± 50 mVp-p
/C )
R R
700 ± 50 mVp-p
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