Chapter 5  Maintenance — Troubleshooting

Troubleshooting

Review the following points. For details, refer to the corresponding pages.

ProblemsPoints to be checked

Page

 

ff Is the power plug firmly inserted into the outlet?

 

ff Is the <MAIN POWER> switch turned <OFF>?

34

Power does not turn on.

ff Is the wall outlet supplying electricity?

ff Have the circuit breakers tripped?

 

 

ff Is the temperature indicator <TEMP> or the light source indicator <LIGHT> lit or

109

 

flashing?

 

 

 

ff Are connections to external devices correctly performed?

27

 

ff Is the input selection setting correct?

38, 74

No image appears.

ff Is the [BRIGHTNESS] adjustment setting at a minimum?

47

 

ff Is the external device that is connected to the projector working properly?

 

ff Is the AV mute function in use?

37

 

 

 

 

ff Is the lens focus set correctly?

35

The image is fuzzy.

ff Is the projection distance appropriate?

25

ff Is the lens dirty?

16

 

 

ff Is the projector installed perpendicular to the screen?

 

 

 

 

ff Is the [COLOR] or [TINT] adjusted correctly?

47

The color is pale or grayish.

ff Is the external device connected to the projector adjusted correctly?

27

 

ff Is the RGB cable damaged?

 

ff Are the batteries depleted?

 

ff Is the polarity of the batteries set correctly?

22

 

ff Are there any obstructions between the remote control and the remote control signal

19

 

receiver of the projector?

The remote control does

 

ff Is the remote control being used beyond its effective operation range?

19

not respond.

ff Are other forms of light, such as fluorescent light, affecting the projection?

19

 

 

ff Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to

87

 

[DISABLE]?

 

 

 

ff Is the ID number setting operation correct?

22

 

 

 

The buttons on the control

ff Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]?

87

panel do not operate.

 

 

 

The image does not display

ff Is the [SYSTEM SELECTOR] selection set correctly?

50

ff Is there a problem with the video tape or other image sources?

correctly.

ff Is a signal which is not compatible with the projector being input?

121

 

 

ff Is the cable too long? (Use D-Sub cables that are 10 m (32'10") or shorter.)

Image from a computer

ff Is the external video output of the laptop computer set correctly? (Ex.: The external

 

output settings may be switched by pressing the “Fn” + “F3” or “Fn” + “F10” keys

 

does not appear.

simultaneously. Since the method varies depending on the computer type, refer to

 

 

 

the user manual provided with your computer.)

 

 

ff Is the [DVI-I IN] setting set to [EDID3]/[EDID2]?

62

Image from a computer’s

ff The graphics accelerator driver of the computer may need to be updated to the

DVI-I output does not

latest version.

 

appear.

ff The computer may need to be restarted after performing [DVI-I IN] settings.

62

 

ff Is the [DIGITAL/ANALOG] setting in [DVI-I IN] correct?

62

 

 

 

Video from HDMI

ff Is the HDMI cable connected securely?

27

compatible device does

ff Turn the power of the projector and the external device on and off.

not appear or it appears

ff Is a signal which is not compatible with the projector being input?

121

jumbled.
No audio is coming from

ff Set audio of the external device to linear PCM.

ff Check [AUDIO IN SELECT] in [AUDIO SETTING].

78

the HDMI compatible

ff When there is no audio through the HDMI cable connection, use the <AUDIO IN>

 

device

78

 

terminal.

 

 

There is no DIGITAL LINK

ff Are the connections between the twisted-pair-cable transmitter and the projector or

input audio or video.

an external device correctly done?

 

ff Is [DIGITAL LINK MODE] set to [AUTO] or [DIGITAL LINK]? Is it set to [ETHERNET]?

88

 

 

 

 

112 - ENGLISH