Error Message & Possible Solution - Acer AL2051 Owner's Manual

ERROR MESSAGE & POSSIBLE SOLUTION
CABLE NOT CONNECTED :
1. Check that the signal-cable is properly connected, If the connector is
loose, tighten the connector's screws.
2. Check the signal -cable connection pins for damage.
INPUT NOT SUPPORT :
Your computer has been set to unsuitable display mode, set the computer to
display mode given in the following table (See page 18).
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