Sony VPL-CX20 Manuale Utente

36

Troubleshooting

The picture is noisy.

Noise may appear on the background depending on the combination 
of the number of dots input from the connector and the numbers of 
pixels on the LCD panel.
c Change the desktop pattern on the connected computer.

The picture from the 
INPUT A connector is 
colored strangely.

The setting of “Input-A Signal Sel.” on the Setup menu is incorrect.
c Select “Auto”, “Computer,” “Video GBR” or “Component” 

correctly according to the input signal (see page 29).

“Please check Input-A 
Signal Sel.” appears in 
spite of inputting the 
correct signal from 
INPUT A.

The setting of “Input-A Signal Sel.” on the Setup menu is incorrect.
c Select “Auto”, “Computer,” “Video GBR” or “Component” 

correctly according to the input signal (see page 29).

On-screen display does not 
appear.

“Status” on the Setup menu has been set to “Off.”
c Set “Status” on the Setup menu to “On” (see page 29).

Color balance is incorrect.

• The picture has not been adjusted properly.

c Adjust the picture (see page 22).

• The projector is set to the wrong color system.

c Set “Color System” on the Setup menu to match the color 

system being input (see page 29).

The picture is too dark.

• Contrast or brightness has not been adjusted properly.

c Adjust the contrast or brightness on the “Adjust Picture...” menu 

of the Picturem menu properly (see page 22).

• The lamp has burnt out or is dim.

c Replace the lamp with a new one (see page 32).

The picture is not clear.

• The picture is out of focus.

c Adjust the focus (see page 13).

• Condensation has accumulated on the lens.

c Leave the projector for about two hours with the power on.

The image extends beyond 
the screen.

The APA key has been pressed even though there are black edges 
around the image.
c Display the full image on the screen and press the APA key.
c Adjust “Shift” on the Adjust Signal... menu of the Signal menu 

properly (see page 23).

The picture flickers.

“Dot Phase” on the Adjust Signal... menu of the Signal menu has not 
been adjusted properly.
c Adjust “Dot Phase” on the Adjust Signal... menu of the Signal 

menu properly (see page 23).