Sony RDR-GX330 Service Manual page 82

RDR-GX220/GX330
3. S-Video Output S-C Check
<Purpose>
This check confirms that the S-video output S-C conforms to the PAL
standard. If it adjusted incorrectly, the playback color will not be too
dark or too thin.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) IInsert the PAL reference disc and play back the 100% color bars.
2) Confirm that the burst signal level is 300 mV±30 mVp-p.
4. Component Video Output Y Check
<Purpose>
This check confirms that the component Y signal output has the rated
amplitude. If this signal level is not correct, brightness of the video
signal will not be too dark or too thin when the COMPONENT
connector output signal is connected to a projector having
COMPONENT input.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) Insert the PAL reference disc and play back the 100% color bars.
2) Confirm that the Y signal level is 1.0 V±0.07 Vp-p.
PLAY
Color bars
S-VIDEO OUTPUT (S-C) connector
(terminated in 75Ω)
Oscilloscope
300 mV±30 mVp-p
300 ± 30 mVp-p
Fig. 7-3.
PLAY
Color bars
D1/D2 VIDEO OUTPUT connector
pin-ql (terminated in 75Ω)
Oscilloscope
1.0 V±0.07Vp-p
Fig. 7-4.
5. Component Video Output B-Y Check
<Purpose>
This check confirms that the B-Y signal of the component video
conforms to the PAL standard. 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 a projector having
COMPONENT input.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) Insert the PAL reference disc and play back the 100% color bars.
2) Confirm that the burst signal level is 700 mV±50 mVp-p.
6. Component Video Output R-Y Check
<Purpose>
This check confirms that the R-Y signal of the component video
conforms to the PAL standard. 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 a projector having
COMPONENT input.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) Insert the PAL reference disc and play back the 100% color bars.
1.0 ± 0.07Vp-p
2) Confirm that the burst signal level is 700 mV±50 mVp-p.
7-4E 7-4
PLAY
Color bars
D1/D2 VIDEO OUTPUT connector
pin-7 (terminated in 75Ω)
Oscilloscope
700 mV±50 mVp-p
700 ± 50 mVp-p
Fig. 7-5.
PLAY
Color bars
D1/D2 VIDEO OUTPUT connector
pin-qg (terminated in 75Ω)
Oscilloscope
700 mV±50 mVp-p
700 ± 50 mVp-p
Fig. 7-6.