JVC DLA-M2000LU Manuel D'instructions page 64

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Troubleshooting
Symptom
Color is poor or • Is picture quality (color density, etc.)
unstable.
• Is the correct color system selected?
• Are signals (scanning frequency, etc.)
• Is the PC2 input terminal being used?
The upper part of the • While computer system signal is input,
video image bows or
distorts.
• Isn't signal with much jitter or skew
Video image and • Are video picture and audio turned off
audio sound
suddenly go out.
Remote control unit • Are batteries installed correctly?
does not work.
• Are batteries exhausted?
• Is there a shielding object between the
• Is the distance too long?
• Is either side of remote cable
* This device uses a computer. External noise may cause it to malfunction. If this happens, turn the power off, remove the
electric plug from the wall outlet. Then insert the electric plug back into the wall outlet, turn the power back on and check the
operation.
I When warning indication is shown by the blinking indicators:
The warning status will be notified by the combination lighting of the projector's indicators.
For the warning contents and the action to be taken, refer to "Warning Indication" on page 63.
I
Maintenance
• Stains on the cabinet
These should be wiped off with a soft cloth. If the cabinet is heavily stained, wipe it with a cloth soaked in water-diluted
neutral detergent and wring well, then wipe clean with a dry cloth.
• Since the cabinet may deteriorate in quality, become damaged, or show paint peeled, note the following:
– Do not wipe with rough cloth.
– Do not wipe vigorously.
– Do not wipe with thinner or benzene.
– Do not apply any volatile substance such as insecticides.
– Do not allow any rubber or vinyl article to remain in contact with the cabinet for a long time.
• Stains on the lens
These should be cleaned off with commercially available lens blowers or lens cleaning paper (for cleaning glasses and
cameras).
Do not use liquid cleaning agents. This could cause the surface coating to be removed.
Do not rub, scratch or hit the lens as its surface is prone to damage.
62
Probable cause
adjusted correctly?
of the connected devices appropriate?
isn't a sync signal for composite sync
(Cs) or G on sync being input?
distortion being input from a video
deck?
by pressing the HIDE button?
remote control unit and the remote
sensor?
disconnected?
DLA-M2000LU/M2000SCU/ LCT0940-002A / ENGLISH
Corrective action
• Adjust picture quality on the menu.
• Set the color system to AUTO or to the
correct dedicated color system.
• Check if the signal is appropriate (scanning
frequency, etc.), and input the appropriate
signal.
• When the PC2 input terminal is being use,
"PC 2(BNC)" must be selected from the
menu options. Set it correctly with the input
signal.
• Input separate sync signals for vertical sync
(V) and horizontal sync (H) signals.
• Input signals with little jitter or distortion.
Use a TBC or a device with a built-in TBC.
• Turn on video picture and audio by pressing
the HIDE button.
• 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.
• Firmly insert the remote cable when using
the remote control unit as the wired one.
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