Checking Component Video Output Y; (Mb-85 Board); Checking S Video Output S-C (Mb-85 Board); Adjustment Related Parts - Sony DVP-CX850D Service Manual

5. Checking Component Video Output Y

(MB-85 BOARD)

<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
Test point COMPONENT VIDEO OUT (Y)
connector (75 W terminated)
Instrument Oscilloscope
Specification 1.0 ± 0.05 Vp-p
Checking method:
1) Confirm that the Y level is 1.0 ± 0.05 Vp-p.
1.0 0.05 Vp-p
Fig. 8-5

6. Checking S Video Output S-C (MB-85 BOARD)

<Purpose>
This checks whether the S-C satisfies the NTSC Standard. If it is
not correct, the colors will be too dark or light.
Mode Video level adjustment in test mode
Signal Color bars
S VIDEO OUT (S-C) connector
Test point
(75 terminated)
Instrument Oscilloscope
Specification 286 ± 30 mVp-p (NTSC)
Checking method:
1) In the test mode initial menu "6" Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the S-C burst is 286 ± 30 mVp-p.
286 30 mVp-p
Fig. 8-6
8-3
8-3. ADJUSTMENT RELATED PARTS ARRANGEMENT
MB-85 BOARD (SIDE A)
CN005
28 27
2 1
RV401
VIDEO LEVEL ADJ
HS-030SU BOARD (SIDE A)
1 6
7 1 CN203
CN202
8-4E