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Symptom
Image color is poor or
• Is picture quality (color density, etc.)
image is disturbed.
adjusted correctly?
• Is the correct broadcast system (color
system) selected?
• Are signals (scanning frequency, etc.) to
connected devices appropriate?
• Is the source setting correctly selected?
Isn't a wrong source (forced mode)
selected?
Specific colors fail to
• Are specifications of the signal being
be displayed.
input matching those of the video input
card?
• Is the input cable connected correctly?
• Has the lamp's life come to its end?
The upper part of the
• While computer system signal is input,
video image bows or
isn't a sync signal for composite sync
distorts.
(C
• Isn't signal with much jitter or skew
distortion being input to a video deck?
• Is the source setting correctly selected?
Isn't a wrong source (forced mode)
selected?
• Have the channel's setup contents been
changed?
The projection
• Have the channel's setup contents been
position on the screen
changed?
has shifted.
• Is sync signal being input correctly?
• Has the projector been moved from its
installed place?
Video image suddenly
• Aren't video turned off by pressing the
go out.
remote control's AV HIDE button?
• Are all color video signals being input?
Lens shift adjustment
• Is the shift center lock pin for shipment
is not possible.
left attached?
Probable cause
) or G on sync being input?
S
Corrective action
• 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).
• Check specifications of both signal being
input and video input card.
• Check cable connections.
• Check the used lamp hours on the menu,
and if the lamp life is near its end, consult
the dealer where you purchased the
projector or a local service center.
• Input separate sync signals for vertical
sync (V) and horizontal sync (H) signals.
• Input signals with little jitter or distortion.
• Set the source setting to AUTO. If the
problem still persists, set it to the correct
dedicated source (forced mode).
• Check the setup contents been changed. 46
• Check the setup contents of the channel
and correct them if necessary.
• Check sync signal and related
connection.
• Check the installed position.
• Press the remote control's AV HIDE
button to turn video on.
• Check signals and connections.
• Remove the shift center lock pin, and
then make adjustments. (For how to
remove the shift center lock pin, consult
the dealer where you purchased the
projector or a local service center.)
Troubleshooting
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