S-Video Output S-C Level Check; Component Video Output Y Check; Component Video Output B-Y Chec; Component Video Output R-Y Check - Sony RDR-GX300 Service Manual

3. S-Video Output S-C Level Check

<Purpose>
This check confirms that the S-video output S-C conforms to the
NTSC standard. If it is adjusted incorrectly, color will be too dark
or too thin.
Mode Video level adjustment in test mode.
Signal Color bars
Test point S VIDEO OUT (S-C) connector
(terminated in 75 Ω)
Instrument Oscilloscope
286 ± 30mVp-p
Specification
Adjustment method :
1) Insert the reference disk and play back the 100% color bars.
2) Confirm that the burst signal level of S-C is 286 ± 30 mVp-p.
Fig. 7-3.

4. Component Video Output Y Check

<Purpose>
This check confirms that the Y signal output is correct. If this signal
level is not correct, brightness of the video signal will be too bright
or too dark when the COMPONENT connector output signal is
connected to the projector having COMPONENT input.
Mode Video level adjustment in test mode
Signal Color bars
Test point COMPONENT VIDEO OUT (Y)
connector (terminated in 75 Ω)
Instrument Oscilloscope
1.0 ± 0.06Vp-p
Specification
Adjustment method:
1) Insert the reference disk and play back the 100% color bars.
2) Check that the Y level is 1.0 ± 0.06 Vp-p.
Fig. 7-4.
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5. Component Video Output B-Y Chec

<Purpose>
This check confirms that the B-Y signal of the component video
output is correct. If this signal level is not correct, color of the video
signal will have different color when the COMPONENT connector
output signal is connected to the projector having COMPONENT
input.
Mode
Signal
Test point
Instrument
Specification
Adjustment method:
1) Insert the reference disk and play back the 100% color bars.
2) Confirm that the B-Y level is 700 ± 50 mVp-p.
286 ± 30 mVp-p

6. Component Video Output R-Y Check

<Purpose>
This check confirms that the R-Y signal of the component video
output is correct. If this signal level is not correct, color of the video
signal will have different color when the COMPONENT connector
output signal is connected to the projector having COMPONENT
input.
Mode
Signal
Test point
Instrument
Specification
Adjustment method:
1) Insert the reference disk and play back the 100% color bars.
2) Confirm that the R-Y level is 700 ± 50 mVp-p.
1.0 ± 0.06Vp-p
7-2E
Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (PB)
terminal (terminated in 75 Ω)
Oscilloscope
700 ± 50mVp-p
700 ± 50 mVp-p
Fig. 7-5.
Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (PR)
connector (terminated in 75 Ω)
Oscilloscope
700 ± 50mVp-p
700 ± 50 mVp-p
Fig. 7-6.