Troubleshooting – Acer DV650C User Manual

Page 48

Troubleshooting

Problem

Solution

No picture

Check the following:
• Is the display turned on? Check the power indicator of

the display.

• Is the signal source device turned on? Turn on the

device and try again.

• Are there any loose cable connections? Make sure that

all cables are connected firmly.

• Have you chosen an unsupported output resolution on

• Have you chosen an unsupported output resolution on

the DVD or Blu-ray disc player? Refer to "Supported
Input Signal Resolution" on page 35 to select a
supported resolution and try again.

No sound

Check the following:
• Have you turned on the mute function on the display or

the input source device? Turn off the mute function or
increase the audio volume level and try again.

• Are there any loose cable connections? Make sure that

all cables are connected firmly.

The computer input
image looks strange

• Have you chosen an unsupported output resolution on

• Use the Auto Adjustment function (See "Auto

Adjustment" on page 29) to let the display automatically
optimize the display of computer image.

• If the result of the Auto Adjustment function is not

satisfactory, use the Clock Frequency, Phase, H Position
and V Position functions to manually adjust the image.

The control panel
buttons do not work

Have you locked the control panel buttons? Unlock the
buttons and try again.