Troubleshooting - JVC DLA-G150 Instructions Manual

Troubleshooting

Solutions to common problems related to your projector are described here. If none of the solutions presented here solves the
problem, unplug the projector and consult an authorized dealer or Service Center.
Symptom
Power is not • Is the power cord disconnected?
supplied.
• Is the MAIN POWER switch turned
• Is the fuse blown?
• Is the lamp-replacement opening cover
• Is the filter closed correctly?
• Has the lamp life expired? (Has the
Light is not emitted, • Is the lens cap removed?
or light level is low.
• Is the lamp life near its end?
With power on, • Is the air intake or exhaust area
operation starts but
stops in a few
minutes.
Video image does not • Is the correct input selected?
appear.
• Are devices connected correctly?
• Are signals being supplied from the
• Are input signals (scanning frequency,
• Is the correct color system selected?
• Is brightness adjusted correctly?
• Is video turned off by pressing the
• During DVI input, are image signals
Video image dims. • Is focus adjusted correctly?
• Is distance too short or too long?
• Are Tracking and Phase adjusted
Video image is • Is picture quality (Brightness, etc.)
abnormally dark or
bright.
Video image freezes. • Was the FREEZE button on the
64
Probable cause
on?
closed correctly?
lamp use time reached 1000 hours in
the normal mode?)
(Has the lamp use time reached 2000
hours in the LPC or LOC mode?)
blocked?
connected devices?
etc.) appropriate?
HIDE button?
output from the computer graphic
board (DVI output terminal)?
(During DVI input, depending on the
computer settings, there may be no
signal input or an error may occur (blue
screen).)
correctly?
adjusted correctly?
remote control pressed?
Corrective action
• Insert the power cord (plug) firmly.
• Turn on the MAIN POWER switch.
• Turn off the MAIN POWER switch and
check the fuse.
If it is blown, replace it
• Turn off the MAIN POWER switch, close
the lamp-replacement opening cover
correctly, and turn on the MAIN POWER
switch again.
• Turn off the MAIN POWER switch, fit the
filter correctly, and turn on the MAIN
POWER switch again.
• Turn off the MAIN POWER switch, replace
with a new light-source lamp, and turn on
the MAIN POWER switch.
Reset the lamp use time after replacing with
a new lamp.
• Remove the lens cap.
• Check the lamp use time on the menu, and
if the lamp life is near its end, arrange for a
replacement lamp, or replace a little earlier.
• Turn off the MAIN POWER switch, remove
any blocking objects, and turn on the MAIN
POWER switch again.
• Select the correct input with the VIDEO and
PC buttons.
• Connect devices correctly.
• Set connected devices correctly.
• Check if the signal is appropriate (scanning
frequency, etc.) and input the appropriate
signal.
• Set the color system to AUTO or to the
correct dedicated color system.
• Adjust brightness on the menu.
• Press the HIDE button to turn video on.
• If this happens, turn off the power to both
the projector and the computer, and then
turn the projector back on before turning the
computer on again. Then correctly set the
computer's graphic board.
• Adjust focus.
• Set the projector at the correct distance.
• If satisfactory results are not obtained by
pressing the QUICK ALIGN. button to
conduct quick alignment, adjust Tracking
and Phase on the menu.
• Adjust picture quality on the menu.
• Press the FREEZE button to release
freezing.
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