DV-303/DVF-5020/K5020
ADJUSTMENT
21
1. Video Output (Luminance Signal) Adjustment
Do this adjustment after replacing a C.B.A.
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video output terminal and terminate at 75 ohms.
2. Adjust VR3501 so that the luminance signal (Y+S) level becomes 1000 mVp-p±20 mV.
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video output terminal and terminate at 75 ohms.
2. Adjust VR3511 so that the chrominance signal (C) level becomes 675 mVp-p±13 mV.
Measurement point
Adjustment point
Mode
Disc
Video output terminal
VR3501 (mother C.B.A.)
Color bar 75%
DVD disc (Color bar 75%)
Measuring equipment, tools
Adjustment value
Screwdriver, Oscilloscope
1000mVp-p±20mV
200mV/div, 10µsec/div
Measurement point
Adjustment point
Mode
Disc
Video output terminal
VR3511 (mother C.B.A.)
Color bar 75%
DVD disc (Color bar 75%)
Measuring equipment, tools
Adjustment value
Screwdriver, Oscilloscope
675mVp-p±13mV
200mV/div, 10µsec/div
2. Video Output (Chrominance Signal) Adjustment
Do this adjustment after replacing a C.B.A.
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99.11.2
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