JVC DLA-QX1G Instruction Manual - Page 54

Troubleshooting Cont.

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Troubleshooting (Cont.) Symptom Specific colors fail to be displayed. The upper part of the video image bows or distorts. The projection position on the screen has shifted. Video image suddenly goes out. Lens shift adjustment is not possible. Remote control unit does not work. Probable cause • Has the lamp's life come to its end? • While computer system signal is input, isn't a sync signal for composite sync (Cs) or G on sync being input? • Isn't signal with much jitter or skew distortion being input from a VCR? • Is sync signal being input correctly? • Has the projector been moved? • Isn't video turned off by pressing the remote control unit's HIDE button? • Are all video signals being input correctly? • Is the shift center lock pin for shipment left attached? • Are batteries installed correctly? • 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 unit's LOCKÔUNLOCK switch set to LOCK? Corrective action • Check the lamp's use hours on the menu, and if the lamp life is near its end, consult the dealer where you purchased the projector. • Input separate sync signals for vertical sync (V) and horizontal sync (H) signals. • Input signals with little jitter or distortion. • Check sync signal and related connection. • Check the installed position. • Press the remote control unit's 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.) • Match the polarities of batteries correctly (+ to + and - to -). • Replace with new batteries. • Remove any shielding objects. • Use the remote control unit at a nearer point. • Set the remote control unit's LOCKÔUNLOCK switch to UNLOCK. Page 44 25 ---- 26 to 29 ---- 36 ---- 20 16 16 ---- 24 15 * 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 main power, refer to pages 32 and 33. 52

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52
Corrective action
•
Check the lamp’s use hours on the menu,
and if the lamp life is near its end, consult
the dealer where you purchased the
projector.
•
Input separate sync signals for vertical
sync (V) and horizontal sync (H) signals.
•
Input signals with little jitter or distortion.
•
Check sync signal and related connection.
•
Check the installed position.
•
Press the remote control unit’s 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.)
•
Match the polarities of batteries correctly
(+ to + and – to –).
•
Replace with new batteries.
•
Remove any shielding objects.
•
Use the remote control unit at a nearer
point.
•
Set the remote control unit’s
LOCK
Ô
UNLOCK switch to UNLOCK.
Probable cause
•
Has the lamp’s life come to its
end?
•
While computer system signal is
input, isn’t a sync signal for
composite sync (Cs) or G on sync
being input?
•
Isn’t signal with much jitter or skew
distortion being input from a VCR?
•
Is sync signal being input
correctly?
•
Has the projector been moved?
•
Isn’t video turned off by pressing
the remote control unit’s HIDE
button?
•
Are all video signals being input
correctly?
•
Is the shift center lock pin for
shipment left attached?
•
Are batteries installed correctly?
•
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 unit’s
LOCK
Ô
UNLOCK switch set to
LOCK?
Symptom
Specific colors fail
to be displayed.
The upper part of
the video image
bows or distorts.
The projection
position on the
screen has
shifted.
Video image
suddenly goes
out.
Lens shift
adjustment is not
possible.
Remote control
unit does not
work.
Page
44
25
26 to 29
36
20
16
16
24
15
* 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 main power, refer to pages 32 and 33.
Troubleshooting (Cont.)
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