Acer AT2001 - Manual (Page 32)

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TROUBLESHOOTING AND SUPPORT
Before contacting customer service, use the following information to solve
common problems.
No Picture
Make sure that the power cord is properly plugged into a grounded
electrical outlet.
Make sure that the main power switch and power button are turned ON.
Make sure that the selected video input source is connected to a working
device.
If your LCD TV is connected to your computer in VGA mode, press any key
on your keyboard to wake up your computer.
No Sound
Try pressing the MUTE button.
Make sure that the headphones are not connected.
Check Audio setting under the OSD Audio menu.
Distorted Picture or Unusual Sounds
You may be getting interference from electrical appliances, cars, motorcycles,
or fluorescent lights. Try moving your LCD TV to another location.
Abnormal Patterns
Make sure that the input source cable is attached securely and correctly.
Make sure that the video input source is within the range of your LCD TV.
Compare the video input source’s specifications with your LCD TV’s
specifications.
Abnormal Colors
Make sure that the input source cable is connected securely and correctly to
your LCD TV.