Philips DVD733 Service Manual page 19

Diagnostic Software, Trouble Shooting and Test Instructions
5.3.2 No Picture
No Picture Sound and FTD
display OK
Put the Mains switch to ON
and play a DVD disc
Check digital
YUV input to
Video DAC
IC7301
YES
Check Video
output from
Video DAC IC
7301 input
YES
•
Check +5VAV to the Video buffer
circuitry
•
Check / Replace the components in the
Video buffer circuitry.
•
Check YUV data lines connection
from processor IC 7101 to Video DAC
NO
IC7301
•
Check / Replace processor IC 7101
•
Check +5V supply at pin 36/41/46 of
NO Video DAC IC 7301
•
Check / Replace coil 5301
•
Check /Replace Video DAC IC 7301
Figure 5-2 No Picture
DVD733 /xx1 5.
DIG YUV
PM3380B
ch1
1
1
1.00V / DC
20ns / div
CL 26532068_026.eps
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