Acer X203H Service Manual Page 51

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6. Level 2 Circuit Board and Standard Parts Replacement
6.1 Trouble Shooting Guide
6.1.1 No Display or display is unstable (Interface Board)
OSD shown when key pressed?
No
Yes
Follow instructions from OSD dialog
Keypad OK?
Yes
No
Screen is Blank and Power LED
is White.
Backl
ight turned
ON?
Scalar output
Data ?
Yes
Proceed to
“Check Power Board”.
No
Yes
“Check LCD Module”
No
Proceed to
“Check Scalar”
Proceed to
“Check Control Board”.
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