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11 Electrical Confirmation
11.1. Video Output (Luminance Signal) Confirmation
Do this confirmation after replacing a P.C.B.
Measurement point Mode Disc
Video output terminal Color bar 75%
PLAY (Title 46):DVDT-S15
PLAY (Title 12):DVDT-S01
DVDT-S15
or
DVDT-S01
Measuring equipment, tools Confirmation 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. Confirm that the luminance signal (Y+S) level is 1000 mVp-p±20 mV.
11.2. Video Output (Chrominance Signal) Confirmation
Do this confirmation after replacing a P.C.B.
Measurement point Mode Disc
Video output terminal Color bar 75%
PLAY (Title 46):DVDT-S15
PLAY (Title 12):DVDT-S01
DVDT-S15
or
DVDT-S01
Measuring equipment, tools Confirmation value
Screwdriver,Oscilloscope
200mV/div, 10µsec/div
826mVp-p±40mV
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video output terminal and terminate at 75 ohms.
2. Confirm that the chrominance signal (C) level is 826 mVp-p±40 mV.