Sharp XG-PH70X Service Manual page 52

XG-PH70X/XG-PH70X-N (1st. Edition)
Input signal setting check
Is the input menu selected properly?
YES
Are the connectors connected properly?
YES
End
Checking of Sync signal
Is the vertical sync signal applied to
the pin 11 of IC8012?
YES
Is the horizontal sync signal applied
to the pin 5 of IC8012?
YES
Is the vertical sync signal applied to
TL8016?
YES
Is the horizontal sync signal applied
to TL8015?
YES
Is the timing of vertical and horizon-
tal sync signals correct?
NO
Is the signal generator (input
source) correct?
YES
The periphery of SC8001 is defec-
tive.
NO Select the proper menu.
NO Connect the connectors properly.
NO Go to "Input signal setting check".
NO Go to "Input signal setting check".
NO IC8012 is defective.
NO IC8012 is defective.
YES The sync signal is normal.
NO Properly set the signal source.
4 – 10
The periphery of SC8001 is defective.
The periphery of SC8001 is defective.
3
2
2
1