Troubleshooting; Warning Indication - JVC DLA-M2000LU Operating Instructions Manual

Troubleshooting

Symptom Probable cause
Color is poor or • Is picture quality (color density, etc.)
unstable. adjusted correctly?
• Is the correct color system selected?
• Are signals (scanning frequency, etc.)
of the connected devices appropriate?
• Is the PC2 input terminal being used?
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 from a video
deck?
Video image and • Are video picture and audio turned off
audio sound by pressing the HIDE button?
suddenly go out.
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 either side of remote cable
disconnected?
* 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.
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.
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
Corrective action Page
• Adjust picture quality on the menu. 47
• Set the color system to AUTO or to the 44
correct dedicated color system.
• Check if the signal is appropriate (scanning 22
frequency, etc.), and input the appropriate
signal.
• When the PC2 input terminal is being use, 11, 52
"PC 2(BNC)" must be selected from the
menu options. Set it correctly with the input
signal.
• Input separate sync signals for vertical sync 11, 28
(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 10, 13,
the HIDE button. 34
• Match the polarities of batteries correctly (+ 14
to + and – to –).
• Replace with new batteries. 14
• Remove any shielding objects. 20
• Use the remote control unit at a nearer 20
point.
• Firmly insert the remote cable when using 20
the remote control unit as the wired one.

Warning Indication

If something abnormal has occurred with the projector, the warning status will be indicated by the combination of lighting the
indicators on the control panel as shown in the following table. Then, the projector automatically stops projection and runs the
cooling fan for about 120 seconds.
Warning indication table:
Indicator
No.
LAMP TEMP STAND BY OPERATE
1 Blink Blink
2 Blink Blink
3 Blink Blink
4 Blink Blink
5 Blink
6 Blink Blink
7 Blink Blink Blink Blink
* For individual indicator lighting, refer to page 56.
Action to be taken for warning indication
Stopping the projector:
After the cooling fan has stopped, take the following action.
No. 1 : Chek that the cover for replacing the light-source lamp and the front panel are securely attached, and then, press
the OPERATE button for one second or more to turn on the projector for retrying.
No. 2 : Chek that the cover for replacing the light-source lamp and the front panel are securely attached, and then, press
the OPERATE button for one second or more to turn on the projector for retrying.
No. 3 : Press the OPERATE button for one second or more to turn on the projector for retrying.
Nos. 4-7 : Follow the next steps.
1. Turn off the MAIN POWER switch and unplug the power cord from the wall outlet.
2. Take an action according to the number.
No. 4 : Set the filter in place.Then, leave the projector until it cools down.
No. 5 : Check that nothing is blocking the air inlet nor outlet, and wait until the inside cools down.
No. 6 : Check that nothing is blocking the air inlet nor outlet, and wait until the inside cools down.
No. 7 : Leave the projector until it cools down.
3. Plug in the power cord again, turn on the MAIN POWER switch, and press the OPERATE button for one second or
more to turn on the projector for retrying.
Retrying operation:
Plug in the power cord again and operate the projector.
If the same warning indication is observed again, after the cooling fan has stopped, turn off the MAIN POWER switch, unplug
the power cord, and call your dealer for repair.
Warning content
The light-source lamp does not light and projection
is not made.
The light-source lamp has suddenly gone off during
projecting an image.
Circuit operation is abnormal.
The filter is displaced.
The internal temperature is too high. (Sensor 1)
The internal temperature is too high. (Sensor 2)
The cooling fan has stopped (locked).
63