Sony VPL-GH10 - Troubleshooting Common Issues; Power, Picture, and Display Problems

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This section describes how to solve the problems, how to replace the lamp and air filter,
etc.
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.
Power
Picture
Others
Symptom Cause and Remedy
The power is not turned on. c The power may not turn on if you turn the power off with ?/1
(ON/STANDBY) switch and turn it on again in a short time.
After about 1 minute, turn the power on.
c Close the lamp cover securely, then tighten the screws securely.
(1 page 62)
c Close the filter holder securely. (1 page 63)
c Check warning indicators. (1 page 58)
Symptom Cause and Remedy
No picture. c Check that the proper connections have been made.
(1 page 18)
c Set the computer signal to output from an external monitor.
c Set the computer signal to output only to an external monitor.
The bright area of the
picture may become
unclear. (When video
signal is input)
c Switch the RGB dynamic range of the connected equipment to
Full (0-255). If this adjustment is unavailable, adjust
“Brightness” or “Contrast” in the Picture menu of the
projector. (1 pages 40, 41)
The picture is too dark. c Adjust the “Contrast” or “Brightness” of the Picture menu
properly. (1 pages 40, 41)
The picture is not clear. c Adjust the focus. (1 page 23)
c Condensation has accumulated on the lens. Leave the projector
for about 2 hours with the power on.
The color of characters or
the picture is not
appropriate.
c Select the desired color registration in “Panel Alignment” of
Installation menu. (1 page 50)
Image is left on the screen.
(image retention)
c When high contrast non-moving images are displayed for a long
period of time, there may be some image retention on the
screen. This is only a temporary condition. Turning off the
power for a while will eliminate the retained image.