Troubleshooting - JVC DLA-G15U 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 a JVC-authorized dealer or service center.
Symptom
Power is not supplied. • Is the power cord disconnected?
• Is the main power switch turned on?
• Is the lamp-replacement opening cover
• Is the air 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, or audio
sound does not occur.
• Are connected devices connected
• Are signals being supplied from the
• Are input signals (scanning frequency,
• Is the source setting correctly selected?
• Is brightness adjusted correctly?
• Is volume set at minimum?
• Aren't video and audio turned off by
Video image dims. • Is focus adjusted correctly?
• Is distance too short or too long?
• Are TRACKING and PHASE adjusted
Color is poor or • Is picture quality (color density, etc.)
unstable.
• Is the correct broadcast system (color
• Are signals (scanning frequency, etc.) to
• Is the source setting correctly selected?
52
Probable cause
closed correctly?
lamp use time reached 1000 hours?)
blocked?
correctly?
connected devices?
etc.) appropriate?
Isn't a wrong source (forced mode)
selected?
pressing the remote control's AV
MUTING button?
correctly?
adjusted correctly?
system) selected?
connected devices appropriate?
Isn't a wrong source (forced mode)
selected?
Corrective action
• Insert the power cord (plug) firmly.
• Turn on the MAIN POWER switch.
• Turn off the MAIN POWER switch,
close the lamp-replacement opening
cover, and turn on the main power
switch again.
• Turn off the MAIN POWER switch, fit
the air 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 inputs with the
VIDEO and COMPUTER buttons.
• Connect connected devices correctly.
• Set connected devices correctly.
• Check if the signal is correct as input
(scanning frequency, etc.).
Input the appropriate signal.
• Set the source setting to AUTO or to
the correct dedicated source (forced
mode).
• Adjust brightness on the menu.
• Adjust volume with the remote control's
VOL. (+/–) buttons.
• Press the remote control's AV MUTING
button to turn video and audio on.
• Adjust focus with the remote control's
FOCUS (+/–) buttons.
• Set the projector at the correct
distance.
• Adjust TRACKING and PHASE on the
menu.
• Adjust picture quality on the menu.
• Set the broadcast system (color
system) to AUTO.
• Check if the signal is appropriate
(scanning frequency, etc.), and input
the appropriate signal.
• Set the source setting to AUTO. If the
problem still persists, set it to the
correct dedicated source (forced
mode).
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