Sharp XG-PH70X Service Manual page 50

XG-PH70X/XG-PH70X-N (1st. Edition)
OSD check
Is the user menu normally displayed with the MENU
key?
NO
Enter the process menu to select PATTERN. Select
the COLOR pattern.
Is the OSD display color normal?
YES
Select the STEP signal.
Is the STEP signal normal?
NO
Are signals suitable for STEP signals sent to
TL8047, 8048 and 8049?
YES
Go to "Checking the periphery of GA5".
Rewrite the OSD data.
YES OSD is normal.
NO Adjust the DLP system with the process adjustment.
YES Rewrite the OSD data.
NO IC8025 is defective.
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