1. Remove the 2 screws.
2. Remove the 2 screws.
3. Release the three tabs.
12. Electrical Adjustment
12.1. Video Output (Luminance Signal) Adjustment
Do this adjustment after replacing a P.C.B.
Measurement point Adjustment point Mode Disc
Video output
terminal
VR3501 (mother
P.C.B.)
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, 10 sec/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.
38
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