35
Troubleshooting
If the unit 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.
Power
Picture
On-screen display
Remote control
Error Handling
Symptom
Cause and Remedy
Page
The power is not turned on.
Check the indicators.
After the AC power cord is connected, it may take about 10 seconds until the unit is ready
to be turned on. Wait a while then turn on the unit.
–
The power is suddenly turned off.
Check that “Power Saving” in the Setup
menu is set to “Standby.”
Set “Power Saving” to “Off.”
Symptom
Cause and Remedy
Page
No picture.
Check that the connecting cable is connected to the external equipment properly.
Select the input source correctly using the INPUT button.
Check that the computer signal is set for output to an external monitor.
If a notebook computer and the signal is output to its display and an external monitor, the
external monitor’s image may not be displayed correctly. Set your computer to output the
signal to only an external monitor.
–
The picture is too dark.
Adjust “Contrast” or “Brightness” on the Picture
menu properly.
The picture is not clear.
Adjust the focus.
Condensation has accumulated on the lens. Leave the unit for about two hours with the
power on.
–
The color of characters or the picture
is not appropriate.
Select the desired color registration in “Panel Alignment” on the Installation
menu.
Image is left on the projection image.
(Image retention)
When high contrast non-moving images are displayed for a long period of time, there may
be some image retention on the projection image. This is only a temporary condition.
Turning off the power for a while will eliminate the retained image.
–
Symptom
Cause and Remedy
Page
On-screen display does not appear.
Set “Status” on the Setup
menu to “On.”
Check if the ON/STANDBY indicator should light in green. When the ON/STANDBY
indicator blinks in green, the unit is starting up. Wait until it stops blinking and remains lit
in green.
Symptom
Cause and Remedy
Page
The remote control does not work.
Batteries could be weak. Replace them with new batteries.
–
Insert the batteries with the correct polarities.
If there is a light source near the remote control detector, the unit may work improperly or
inadvertently.
–
Confirm the position of the remote control detector on the unit.
Set “IR Receiver” to “Front & Rear” on the Installation
menu.
Check if the “ID Mode” of the projector corresponds to that of the remote control.
Make sure that the cable is not connected to the IR IN connector.
Summary of Contents for VPL-GTZ280
Page 49: ...Sony Corporation ...
