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Function test
After repair, be sure to confirm that all functions are working.
Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended solutions.
Function test
After repair, be sure to confirm that all functions are working.
Table 4-1: Function test
Confirm whether image displays and sound plays
correctly on the monitor.
Confirm whether image displays and sound plays
correctly on the monitor.
Change volume and balance to confirm whether
volume is smooth and loud enough.
Confirm whether image displays and sound plays
correctly on the monitor.
Confirm whether image displays and sound plays
correctly on the monitor.
Confirm whether image displays and sound plays
correctly on the monitor
Screen is blank or video
is flashing.
Power cord is disconnected.
The monitor is turned off.
Press the front bezel power
button.
NOTE: If pressing the Power
button has no effect, press and
hold the power button for 10
seconds to disable the Power
button lockout feature.
Video cable is improperly connected.
Connect the video cable
properly.
Press any key on the keyboard
or move the mouse to exit
sleep mode
Video card is incompatible.
Open the OSD menu and
select the Input menu. Set
Auto- Switch Input to Off
and manually select the input.
Image appears blurred,
indistinct, or too dark.
Open the OSD menu and
select Brightness to adjust the
brightness scale as needed.