Samsung SyncMaster EX2220, Service Manual

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4-10
4. Troubleshooting
4-5. Error Examples and Actions
Error Appearance Symptoms and Actions Remarks
Symptom: DVI signals are not recognized.
Cause: This error occurs because the PC cannot
recognize the mode information since the
DVI DDC is not input to the monitor.
Action: Input the DVI DDC.
*On how to input DDC, refer to the
training manual.
Symptom: A full white screen is displayed regardless of
the signals when turning on the monitor.
Cause: This error occurs when only lamp power
is supplied and the video signals are not
input to the panel due to an LVDS cable
connection error.
Action: Replace the LVDS cable or connect the
cable correctly so that the video signals can
be supplied to the panel.
* A Full White pattern is a feature of a
TN panel when no video signals are
supplied.
Symptom: When connecting the DVD, noise occurs on
the screen.
Cause: The HDCP key is not inserted.
Action: Enter the HDCP key. (See page 4-17.)