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
Summary of Contents for DV523S
Page 1: ...SERVICE MANUAL DV523S...
Page 25: ...FRONT SCHEMATIC DIAGRAM 23...
Page 26: ...KEY2 Seg2 2 1 XS901 2P 2 0mm K901 STANDBY FRONT SCHEMATIC DIAGRAM 24...
Page 27: ...FRONT SCHEMATIC DIAGRAM 25...
Page 29: ...POWER BOARD SCHEMATIC DIAGRAM 27...
Page 31: ...OK SCHEMATIC DIAGRAM 29...
Page 33: ...OUTPUT BOARD 31...
Page 38: ...MIAN SCHEMATIC DIAGRAM 36...
