Do the confirmation after replacing P.C.B.
Purpose:To maintain video signal output compatibility.
1.Connect the oscilloscope to the video output terminal and terminate at 75 ohme.
2.Confirm that the chrominance signal(C)level is 621 mVp-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
Confirmation value
Screwdriver,Oscilloscope
200mV/dir,10 sec/dir
621mVp-p±30mV
6.2 Video Output(Chrominance Signal) Confirmation
9
Содержание DVD53
Страница 1: ...OPEN CLOSE PREV NEXT PLAY PAUSE STOP POWER SERVICE MANUAL DVD53 55 ...
Страница 12: ...7 MPEG BOARD CHECK WAVEFORM 7 1 27MHz WAVEFORM DIAGRAM 7 2 IC5L0380R PIN 2 WAVEFORM DIAGRAM 10 ...
Страница 45: ...FRONT SCHEMATIC DIAGRAM 43 ...
Страница 47: ...POWER BOARD SCHEMATIC DIAGRAM 45 ...
Страница 49: ...OUTPUT BOARD SCHEMATIC DIAGRAM 47 ...
Страница 54: ...MIAN SCHEMATIC DIAGRAM 52 ...
Страница 55: ...MIAN SCHEMATIC DIAGRAM 53 ...