12.1 Video Output (Luminance Signal) Adjustment

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Do this adjustment after replacing a C.B.A.

Measurement point
 		Adjustment point
 		Mode
 		Disc
Video output terminal
 		VR3501 (mother C.B.A.)
 		Color bar 75%
PLAY (Title 46):DVDT-S15
PLAY (Title 12):DVDT-S01
 		DVDT-S15
or
DVDT-S01
Measuring equipment, tools
Adjustment value
Screwdriver, Oscilloscope
200mV/div, 10μsec/div
 		1000mVp-p±20mV

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.


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