ViewSonic VA2246a-LED Uživatelská příručka stáhnout pdf (Strana 19)

Troubleshooting

No power

• Make sure power button (or switch) is ON.

• Make sure A/C power cord is securely connected to the LCD display.

• Plug another electrical device (like a radio) into the power outlet to verify that the

outlet is supplying proper voltage.

Power is ON but no screen image

• Make sure the video cable supplied with the LCD display is tightly secured to

the video output port on the back of the computer. If the other end of the video

cable is not attached permanently to the LCD display, tightly secure it to the LCD

display.

• Adjust brightness and contrast.

• If you are using an Macintosh older than G3, you need a Macintosh adap

Wrong or abnormal colors

• If any colors (red, green, or blue) are missing, check the video cable to make

sure it is securely connected. Loose or broken pins in the cable connector could

cause an improper connection.

• Connect the LCD display to another computer.

• If you have an older graphics card, contact ViewSonic

for a non-DDC adapter.

Control buttons do not work

• Press only one button at a time.

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ViewSonic VA2246a-LED Uživatelská příručka Strana 19