Sony HCD-C450 Service Manual page 29

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3. Checking S Video Output S-C (DVD 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
Signal
Test point
Instrument
Specification
Connection:
100µF
+
75Ω
100k
±1%
±1%
Checking method:
1) Confirm that the S-C burst is 286 ± 50 mVp-p.
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L 13942296513
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Video level adjustment in test mode
Color bars
CN003 pin 2
Oscilloscope
286 ± 50 mVp-p
CN003
2 Oscilloscope
3
286 ± 50 mVp-p
Figure 5-3
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2 9
8
Adjustment Related Parts Arrangement
DVD BOARD (SIDE A)
Q Q
3 6 7 1 3 1 5
co
.
HCD-C450
9 4 2 8
2
CN003
1 9
RV501
VIDEO LEVEL ADJ
0 5 8 2 9 9 4 2 8
m
9 9
9 9
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