Panasonic PT-DZ680ULS User Manual
114 - ENGLISH
Chapter 5 Maintenance — Troubleshooting
Troubleshooting
Review the following points. For details, see the corresponding pages.
Problems
Points to be checked
Page
Power does not turn on.
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Is the power plug firmly inserted into the outlet?
―
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Is the <MAIN POWER> switch turned <OFF>?
41
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Is the wall outlet supplying electricity?
―
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Have the circuit breakers tripped?
―
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Is the temperature indicator <TEMP> or the lamp indicator <LAMP1>/<LAMP2> lit or flashing?
108, 109
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Is the lamp unit cover securely installed?
112
No image appears.
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Are connections to external devices correctly performed?
35
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Is the input selection setting correct?
46, 77
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Is the [BRIGHTNESS] adjustment setting at a minimum?
53
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Is the external device that is connected to the projector working properly?
―
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Is the shutter function in use?
45
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If the power indicator <ON (G)/STANDBY (R)> is flashing in red, consult your dealer.
―
The picture is fuzzy.
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Is the lens focus set correctly?
43
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Is the projection distance appropriate?
27
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Is the lens dirty?
16
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Is the projector installed perpendicular to the screen?
―
The color is pale or grayish.
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Is the [COLOR] or [TINT] adjusted correctly?
54
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Is the external device connected to the projector adjusted correctly?
35
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Is the RGB cable damaged?
―
The remote control does
not respond.
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Are the batteries depleted?
―
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Is the polarity of the batteries set correctly?
23
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Are there any obstructions between the remote control and the projector’s remote control
signal receiver?
20
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Is the remote control being used beyond its effective operation range?
20
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Are other forms of light, such as fluorescent light, affecting the projection?
20
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Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]?
88
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Is the <REMOTE 2 IN> terminal used for contact control?
122
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Is the ID number setting operation correct?
23
The menu screen does not
appear.
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Is the on-screen display function turned off (hidden)?
22, 45
The buttons on the control
panel do not operate.
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Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]?
88
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Is the <REMOTE 2 IN> terminal used for contact control?
122
The image does not display
correctly.
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Is the [SYSTEM SELECTOR] selection set correctly?
57
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Is there a problem with the video tape or other image sources?
―
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Is a signal which is not compatible with the projector being input?
123
Image from a computer
does not appear.
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Is the cable too long? (Use D-Sub cables that are 10 m (32'10") or shorter.)
―
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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 simultaneously. Since
the method varies depending on the computer type, refer to the user manual provided with
your computer.)
―
Image from a computer’s
DVI-D output does not
appear.
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Is the [DVI-D IN] setting set to [EDID3]/[EDID2:PC]?
68
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The graphics accelerator driver of the computer may need to be updated to the latest version.
―
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The computer may need to be restarted after performing [DVI-D IN] settings.
68
Video from HDMI
compatible device does
not appear or it appears
jumbled.
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Is the HDMI cable connected securely?
35
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Turn the power of the projector and the external device on and off.
―
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Is a signal which is not compatible with the projector being input?
123
Attention
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If problems persist even after checking the preceding points, consult your dealer.