Sharp XG-C58X Service Manual page 42

XG-C58X
XG-C68X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Checking of Onscreen Display
Is the user menu displayed
onscreen normally by the MENU
key?
No
Enter the process menu and select
PATTERN. Then select the COLOR
pattern.
Is the onscreen display color
normal?
Yes
Select the STEP signal.
Is the STEP signal as specified?
No
Is the signal compatible with the
STEP signal outputted at TL106
thru TL111?
Yes
Go to "Checking of GA4 and Its
Periphery".
Rewrite the onscreen display data.
Yes
No problem with the onscreen
display.
No
In the process mode, make the
LCD line adjustment.
0
Yes
Rewrite the onscreen display data.
0
No
IC8025 is defective.
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