Sony VPL-CX21 Operating Instructions Manual page 35

Symptom
The picture is noisy.
The picture from the
INPUT A connector is
colored strangely.
"Please check Input-A
Signal Sel." appears in
spite of inputting the
correct signal from
INPUT A.
On-screen display does not
appear.
Color balance is incorrect.
The picture is too dark.
The picture is not clear.
The image extends beyond
the screen.
The picture flickers.
Cause and Remedy
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 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 28).
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 28).
"Status" on the Setup menu has been set to "Off."
c Set "Status" on the Setup menu to "On" (see page 28).
• The picture has not been adjusted properly.
c Adjust the picture (see page 21).
• 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 28).
• 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 21).
• The lamp has burnt out or is dim.
c Replace the lamp with a new one (see page 31).
• 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 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 22).
"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 22).
35
Troubleshooting