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Troubleshooting (Cont.)
Symptom
Probable cause
During video replay,
• have Installation adjustment been
video image
performed?
sometimes is
disturbed
Image color is poor or
• Is picture quality (color desity, 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.
(Cs) or G on sync being input?
• 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
position on the screen
been 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? • Check signals and connections.
62
Corrective action
Page
• For installation, consult the dealer
where you purchased the projector or a
––––
local service center.
• Adjust picture quality on the menu.
38, 40
• Set the broadcast system (color
34
system) to AUTO.
• Check if the signal is appropriate
19
(scanning frequency, etc.), and input
the appropriate signal.
• Set the source setting to AUTO. If the
problem still persists, set it to the
44 ~ 46
correct dedicated source (forced
mode).
• Check specifications of both signal
being input and video input card.
––––
• Check cable connections.
21
• Check the used lamp hours on the
menu, and if the lamp life is near its
60
end, consult the dealer where you
purchased the projector or a local
service center.
• Input separate sync signals for vertical
10
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
44 ~ 46
correct dedicated source (forced
mode).
• Check the setup contents been
47 ~ 51
changed.
• Check the setup contents of the
47 ~ 51
channel and correct them if necessary.
• Check sync signal and related
10
connection.
• Check the installed position.
––––
• Press the remote control's AV HIDE
12
button to turn video on.
19 ~ 23
Troubleshooting (Cont.)
Symptom
Probable cause
Lens shift adjustment
• Is the shift center lock pin for shipment
is not possible.
left attached?
Remote control unit
• Are batteries installed correctly?
does not work.
• Are batteries exhausted?
• Is there a shielding object between the
remote control unit and the remote
sensor?
• Is the distance too long?
• Is the remote control's LENS
LOCKÔUNLOCK switch set to LOCK?
When the emergency indicator starts blinking:
Refer to the CAUTION and NOTES on page 24.
* This projector is equipped with a microcomputer that may operate abnormally due to interference from external components.
If this happens, turn off the main power and disconnect the power cord from the wall AC outlet. Then reconnect the power cord
to AC outlet and turn on the main power again.
(For the turning on and off the power, see pages 25)
Corrective action
Page
• Remove the shift center lock pin, and
then make adjustments. (For how to
remove the shift center lock pin,
16
consult the dealer where you
purchased the projector or a local
service center.)
• Match the polarities of batteries
correctly (+ to + and - to -).
13
• Replace with new batteries.
13
• Remove any shielding objects.
––––
• Use the remote control unit at a nearer
22
point.
• Set the remote control's LENS
LOCKÔUNLOCK switch to UNLOCK?
12
63
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