Sony VPL-MX20 Manual De Referencia página 31

Troubleshooting
If the projector appears to be operating erratically, try to diagnose and correct the problem
using the following instructions. If the problem persists, consult with qualified Sony
personnel.
For details on the symptoms, see the Operating Instructions contained in the CD-ROM.
Power
Symptom
The power is not turned on. • The lamp cover is not secured.
Picture
Symptom
No picture.
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.
Cause and Remedy
c
Close the lamp cover securely.
Cause and Remedy
• A cable is disconnected or the connections are wrong.
c
Check that the proper connections have been made.
• The connections are wrong.
c
This projector is compatible with DDC2B (Digital Data
Channel 2B). If your computer is compatible with DDC, turn
the projector on according to the following procedures.
1 Connect the projector to the computer.
2 Turn the projector on.
3 Start the computer.
• Input selection is incorrect.
c
Select the input source correctly.
• The picture is muted.
c
Press the PIC MUTING key to release the picture muting.
• The computer signal is not set to output to an external monitor or
set to output both to an external monitor and a LCD monitor of a
computer.
c
Set the computer signal to output only to an external monitor.
• Wait a while (90 seconds at the longest) until the lamp lights again.
• Noise may appear on the background depending on the
combination of the number of dots input from the computer and
the numbers of pixels on the LCD panel.
c
Change the desktop pattern on the connected computer.
• Input a video signal with the jitter.
c
Use a TBC (Time Base Corrector) to try to reduce video jitter.
The setting of "Input-A Signal Sel." in the Setup menu is incorrect.
c
Select "Computer," "Video GBR" or "Component" correctly
according to the input signal.
The setting of "Input-A Signal Sel." in the Setup menu is incorrect.
c
Select "Computer," "Video GBR" or "Component" correctly
according to the input signal.
"Status" in the Setup menu has been set to "Off."
c
Set "Status" in the Setup menu to "On".
13
Troubleshooting
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