BBK ABS551T, Service Manual, Page: 11 / 48

6
.1. Video Output (Luminance Signal) Confirmation
DO this confirmation after replacing a P.C.B.
Purpose:To maintain video signal output compatibility.
1.Connect the oscilloscope to the video output terminal and terminate at 75 ohms.
2.Confirm that luminance signal(Y+S)level is 1000mVp-p±30mV
Measurement point
Video output terminal
Color bar 75%
PLAY(Title 46):DVDT-S15
PLAY(Title 12):DVDT-S01
DVDT-S15
or
DVDT-S01
Mode Disc
Measuring equipment,tools
200mV/dir,10 sec/dir
1000mVp-p±30mV
Confirmation value
6.Electrical Confirmation
9