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Troubleshooting 

 

 
 

Problems 

Possible Solutions 

Power LED is not 
ON 

• 

Check to see if the power switch is in the ON position. 

• 

Ensure that the Power Cord is connected. 

No Picture 

• 

Check to see if the power switch is in the ON position. 

• 

Ensure that the Power Cord is connected. 

• 

Ensure the video cable is securely connected to the back of the monitor 
and the computer. 

• 

Move the mouse or press any key on the keyboard to bring the monitor 
out of "active off" mode. 

Picture shows 
inappropriate colors   

• 

See "Color Adjustment" to adjust RGB color or to select color 
temperature. 

Picture bounces or a 
wave pattern is 
present in the 
picture 

• 

Move or switch off electrical devices that may be causing interference. 

• 

Inspect the monitor's video cable and ensure that none of the pins are 
bent. 

Image is not sized 
or centered properly 

• 

Press select/auto key and the monitor will automatically optimize the 
position of your display. 

• 

See "Position adjustment". 

 
 
 

 

Caution:

 

Do not attempt to service the monitor yourself or open the computer yourself. 
Please refer all servicing to qualified service personnel if the problems cannot 
be solved in "Troubleshooting" section. 

 
 
 

Summary of Contents for AL1511

Page 1: ...ion instructions 3 Assembling the Monitor 3 Detaching the Monitor 3 Adjusting the Viewing Angle 3 Connecting the Devices 3 Switching the Power 4 Adjusting display settings 5 External Controls 5 OSD op...

Page 2: ...ld be used to clean the outside of the monitor A cloth very slightly moistened with a mild detergent solution will clean stubborn stains Keep liquids away from the display screen including sprays Do n...

Page 3: ...make sure the power is off 2 Pull the 4 hooks on bottom side of the base and hold 3 Separate the monitor and base and put them into carton Important First find a clean flat surface to place the monito...

Page 4: ...computer by means of the audio cable WARNING The D Sub 15 pin plug of the VGA cable is trapezoid in shape Make sure the shape of the plug matches the shape of the socket it is inserted into and that n...

Page 5: ...lect or adjust OSD options If OSD is inactive press once then press the buttons marked or to adjust the volume X 3 PLUS If OSD is active press to select or adjust OSD options If OSD is inactive press...

Page 6: ...ive to each other to achieve a comfortable contrast Brightness This adjusts the brightness of the picture on the screen Focus This removes any horizontal distortion and makes the picture clear and sha...

Page 7: ...itional Chinese French Italian and Japanese OSD SETTING This changes the position of the OSD window on the screen and staying time Auto Config System runs auto configuration INFORMATION This shows bri...

Page 8: ...inappropriate colors See Color Adjustment to adjust RGB color or to select color temperature Picture bounces or a wave pattern is present in the picture Move or switch off electrical devices that may...

Page 9: ...ttons Auto MENU OSD Function Contrast Brightness Contrast Brightness Focus Clock Focus Clock Position Position Color Color Language Language OSD setting OSD Setting Auto config Auto config Information...

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