Sony RMT-D123A - Audio System Check

7-3
3-2. CB/B-Y Output level check (MB-94 BOARD)
<Purpose>
This checks component video output B-Y. If it is incorrect, cor-rect
colors will not be displayed when connected to, for instance,
projector.
Mode Playback mode
Signal Color bars
Test point COMPONENT VIDEO OUT (B-Y)
connector (75 Ω terminated)
Instrument Oscilloscope
Specification 700 ± 50 mVp-p
Checking method:
1) Confirm that the B-Y level is 700 ± 50 mVp-p.
Fig. 8-5
3-3. CR/R-Y Output level check
<Purpose>
This checks component video output R-Y. If it is incorrect, cor-rect
colors will not be displayed when connected to, for instance,
projector.
Mode Playback mode
Signal Color bars
Test point COMPONENT VIDEO OUT (R-Y)
connector (75 Ω terminated)
Instrument Oscilloscope
Specification 700 ± 50 mVp-p
Checking method:
1) Confirm that the R-Y level is 700 ± 50 mVp-p.
Fig. 8-6
700 ± 50 mVp-p
700 ± 50 mVp-p
7-3. CHECK OF AUDIO SYSTEM
Mode Playback mode
Signal 1KHz 0dBs
(YEDS-18 (TYPE4) track no.2)
Test point Audio out (L, R)
Instrument Oscilloscope
Specification 6.4 ± 0.7 Vp-p
Checking method:
1) Confirm that the output level 6.4 ± 0.7 Vp-p.
Fig. 8-7
6.4 ± 0.7Vp-p
Waveform should not have distortion