JVC DLA-G150CLU, DLA-G150CLE manual Troubleshooting, Maintenance

Troubleshooting

Solutions to common problems related to your projector are described here. If none of the solutions presented here solves the problem, unplug the projector and consult an authorized dealer or Service Center.

Symptom

Probable cause

Corrective action

Page

Power

is not

•

Is the power cord disconnected?

•

Insert the power cord (plug) firmly.

30

supplied.

•

Is the MAIN POWER switch turned

• Turn on the MAIN POWER switch.

32

on?

•

Is the fuse blown?

•

Turn off the MAIN POWER switch and

57

check the fuse.

If it is blown, replace it

•

Is the lamp-replacement opening cover

• Turn off the MAIN POWER switch, close

7, 32, 60

closed correctly?

the lamp-replacement opening cover

correctly, and turn on the MAIN POWER

switch again.

•

Is the filter closed correctly?

• Turn off the MAIN POWER switch, fit the

7, 32, 63

filter correctly, and turn on the MAIN

POWER switch again.

•

Has the lamp life expired? (Has the

• Turn off the MAIN POWER switch, replace

32, 58,

lamp use time reached 1000 hours in

with a new light-source lamp, and turn on

59, 62

the normal mode?)

the MAIN POWER switch.

(Has the lamp use time reached 2000

Reset the lamp use time after replacing with

hours in the LPC or LOC mode?)

a new lamp.

Light is

not

emitted,

•

Is the lens cap removed?

•

Remove the lens cap.

30

or light

level is low.

No.

•

Is the lamp life near its end?

•

Check the lamp use time on the menu, and

56, 58,

if the lamp life is near its end, arrange for a

59

replacement lamp, or replace a little earlier.

51931

minutes.

on,

•

Is the air intake or exhaust area

• Turn off the MAIN POWER switch, remove

6, 7, 32

With

power

operation starts but

blocked?

any blocking objects, and turn on the MAIN

stops in

a

few

POWER switch again.

Video

image

does not

•

Is the correct input selected?

•

Select the correct input with the VIDEO and

9, 13

appear.

PC buttons.

•

Are devices connected correctly?

•

Connect devices correctly.

11, 22

•

Are signals being supplied from the

• Set connected devices correctly.

–

connected devices?

•

Are input signals (scanning frequency,

• Check if the signal is appropriate (scanning

22, 23

etc.) appropriate?

frequency, etc.) and input the appropriate

signal.

•

Is the correct color system selected?

• Set the color system to AUTO or to the

45

correct dedicated color system.

•

Is brightness adjusted correctly?

• Adjust brightness on the menu.

49

•

Is video turned off by pressing the

• Press the HIDE button to turn video on.

10,

12,

HIDE button?

35

•

During DVI input, are image signals

• If this happens, turn off the power to both

22

output from the computer graphic

the projector and the computer, and then

board (DVI output terminal)?

turn the projector back on before turning the

(During DVI input, depending on the

computer on again. Then correctly set the

computer settings, there may be no

computer’s graphic board.

signal input or an error may occur (blue

screen).)

Video

image

dims.

•

Is focus adjusted correctly?

• Adjust focus.

12, 34

•

Is distance too short or too long?

• Set the projector at the correct distance.

18, 76,

77

•

Are Tracking and Phase adjusted

• If satisfactory results are not obtained by

13, 36,

correctly?

pressing the QUICK ALIGN. button to

47

conduct quick alignment, adjust Tracking

and Phase on the menu.

Video

image

is

•

Is picture quality (Brightness, etc.)

• Adjust picture quality on the menu.

49

abnormally dark or

adjusted correctly?

bright.

Video

image

freezes.

•

Was the FREEZE button on the

• Press the FREEZE button to release

12, 37

remote control pressed?

freezing.

64

1-33

						Troubleshooting
Symptom			Probable cause			Corrective action		Page
A part of image is		•	Was the DIGITAL ZOOM T button on			• Press the PRESET button to restore the		12, 37
magnified.			the remote control pressed?			original video screen.
Color is poor	or	•	Is picture quality (color density, etc.)			• Adjust picture quality on the menu.		49
unstable.			adjusted correctly?
		•	Is the correct color system selected?	•		Set the color system to AUTO or to the		45
						correct dedicated color system.
		•	Are signals (scanning frequency, etc.)			• Check if the signal is appropriate (scanning		22
			of the connected devices appropriate?			frequency, etc.), and input the appropriate
						signal.
The upper part of the		•	While computer system signal is input,			• Input separate sync signals for vertical sync		11, 28
video image	bows or		isn’t a sync signal for composite sync			(V) and horizontal sync (H) signals.
distorts.			(Cs) or G on sync being input?
		•	Isn’t signal with much jitter or skew			• Input signals with little jitter or distortion.		–
			distortion being input from a video			Use a TBC or a device with a built-in TBC.
			deck?
Video image		•	Is video picture turned off by pressing			• Turn on video picture by pressing the HIDE		10, 12,
suddenly go	out.		the HIDE button?			button.		35
Remote control unit		•	Are batteries installed correctly?		• Match the polarities of batteries correctly (+			14
does not work.						to + and – to –).
		•	Are batteries exhausted?	•		Replace with new batteries.	14
		•	Is there a shielding object between the			• Remove any shielding objects.	20
			remote control unit and the remote
			sensor?
		•	Is the distance too long?		• Use the remote control unit at a nearer			20
						point.
		•	Is either side of remote cable			• Firmly insert the remote cable when using		21
			disconnected?			the remote control unit as the wired one.
* 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 t								he
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 66.

■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.

65

ESPAÑOLITALIANO FRANÇAISDEUTSHENGLISH

DLA-G150CLU DLA-G150CLE