Troubleshooting

Should any problem persist, contact your dealer.

 

 

 

 

 

 

 

 

Problem

Cause

Reference

 

 

page

 

 

 

 

 

 

 

The Mains lead may not be connected.

20

 

 

 

No electric supply is at the mains socket.

20

 

 

Power does not turn on.

TEMP indicator is lit or flashes.

41

 

 

LAMP indicator is lit or flashes.

41

 

 

 

 

 

 

The lamp unit cover has not been securely installed.

43

 

 

 

The circuit breakers have tripped.

-

 

 

 

 

 

 

 

 

The video signal input source may not be connected to a terminal

19

 

 

 

properly.

 

 

 

No picture appears.

The input selection setting may not be correct.

26

 

 

The BRIGHTNESS adjustment setting may be at the minimum setting.

32

 

 

 

 

 

 

The signal input source may not be operating properly.

-

 

 

 

The SHUTTER function may be in use.

26

 

 

 

The lens focus may not have been set correctly.

24

 

 

The picture is fuzzy.

The projector may not be at the correct distance from the screen.

16

 

 

The lens may be dirty.

42

 

 

 

 

 

 

The projector may be tilted too much.

24

 

 

 

 

 

 

 

The colour is pale or

COLOR or TINT adjustment may be incorrect.

32

 

 

The input source which is connected to the projector may not be

30

 

 

greyish.

 

 

adjusted correctly.

 

 

 

 

 

 

 

 

 

 

 

 

No sound can be heard

The audio signal source may not be connected properly.

18

 

 

A cable may be connected to the VARIABLE AUDIO OUT terminal.

15

 

 

from the internal speaker.

 

 

The volume adjustment may be at the lowest possible setting.

28

 

 

 

 

 

 

 

 

 

 

The control buttons of the

CONTROL PANEL in OPTION menu is invalidated. If you have a loss

 

 

 

of the Remote control while the CONTROL PANEL is invalidated,

37

 

 

projector do not operate.

press and hold the MENU button for 2 seconds with pressing the

 

 

 

 

 

 

ENTER button.

 

 

 

 

The batteries may be weak.

-

 

 

The Remote control does

The batteries may not have been inserted correctly.

12

 

 

The Remote control signal receptor on the projector may be

25

 

 

not operate.

obstructed.

 

 

 

 

The Remote control unit may be out of the operation range.

25

 

 

 

The Remote control is under the strong light such as fluorescent.

25

 

 

The picture does not

The signal format (TV-SYSTEM) may not have been set correctly.

33

 

 

There may be a problem with the VCR or other signal source.

-

 

 

display correctly.

 

 

A signal which is not compatible with the projector is being input.

46

 

 

 

 

 

 

 

 

 

 

 

The cable may be longer than the optional cable.

-

 

 

 

The external video output from a laptop computer may not be correct.

49

 

 

 

(You may be able to change the external output settings by pressing

 

 

 

Picture from a computer

the [Fn] + [F3] or [Fn] + [F10] keys simultaneously. The actual method

 

 

 

varies depending on the type of computer; refer to the documentation

 

 

 

does not appear.

 

 

 

provided with your computer for further details.)

 

 

Maintenance

 

 

 

 

If an COMPUTER INPUT indicator is turned off, the video signals may

14

 

 

 

 

 

not be output from the computer.

 

 

 

 

COMPUTER2 SELECT setting in OPTION menu is not correct.

36

 

 

 

 

 

 

 

ENGLISH - 45

Page 45
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Panasonic PT-LB51E, PT-LB51NTE operating instructions Troubleshooting