Panasonic PT-DX820

Chapter 5 Maintenance — Troubleshooting
ENGLISH - 169
Troubleshooting
Review the following points. For details, see the corresponding pages.
Problems Points to be checked Page
Power does not turn on.
f Is the power plug rmly inserted into the outlet? ―
f Is the <MAIN POWER> switch set to <OFF>? 61
f Is the wall outlet supplying electricity? ―
f Have the circuit breakers tripped? ―
f Are the lamp indicators <LAMP1>/<LAMP2> or the temperature indicator <TEMP>
lit or blinking?
162
f Is the lamp unit cover attached securely? 167
No image appears.
f Are connections to external devices correctly performed? 49
f Is the input selection setting correct? 67
f Is the [BRIGHTNESS] adjustment setting at a minimum? 76
f Is the external device that is connected to the projector working properly? ―
f Is the shutter function in use? 66
f If the power indicator <ON (G)/STANDBY (R)> is blinking in red, consult your dealer. ―
f Is the lens cover still attached to the lens? 56
Image is fuzzy.
f Is the lens focus set correctly? 62
f Is the projection distance appropriate? 32
f Is the lens dirty? 21
f Is the projector installed perpendicular to the screen? ―
Color is pale or grayish.
f Are [COLOR] and [TINT] adjusted correctly? 77
f Is the external device connected to the projector adjusted correctly? 49
f Is the RGB cable damaged? ―
Remote control does not
respond.
f Are the batteries depleted? ―
f Is the polarity of the batteries set correctly? 28
f Are there any obstructions between the remote control and the remote control
signal receiver of the projector?
24
f Is the remote control being used beyond its effective operation range? 24
f Are other forms of light, such as uorescent light, affecting the projection? 24
f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
135
f Is the <REMOTE 2 IN> terminal used for contact control? 184
f Is the ID number setting operation correct? 69
Menu screen does not
appear.
f Is the on-screen display function turned off (hidden)? 104
Buttons on the control
panel do not operate.
f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to
[DISABLE]?
135
f Is the <REMOTE 2 IN> terminal used for contact control? 184
Image does not display
correctly.
f Is the [SYSTEM SELECTOR] selection set correctly? 81
f Is the [RGB1 INPUT SETTING] setting performed correctly? 98
f Is there a problem with the video tape or other image sources? ―
f Is a signal which is not compatible with the projector being input? 186
Image from a computer
does not appear.
f Is the cable too long? (For D-Sub cables, the cable length should be 10 m (32'10")
or shorter.)
―
f Is the external video output on the laptop computer set correctly? (Ex.: The external
output settings may be switched by pressing the “Fn” + “F3” or “Fn” + “F10”
simultaneously. Since the method varies depending on the computer type, refer to
the user manual provided with your computer.)
―
Image output from DVI-D
of the computer does not
appear.
f Is the [EDID SELECT] setting in [DVI-D IN] set to [EDID3] or [EDID2:PC]? 99
f The graphics accelerator driver of the computer may need to be updated to the
latest version.
―
f The condition may be improved by making the [EDID SELECT] setting in [DVI-D IN]
and then restarting the computer.
99
Video from HDMI
compatible device does
not appear or it appears
jumbled.
f Is the HDMI cable connected securely? 49
f Turn the power of the projector and the external device off and on. ―
f Is a signal which is not compatible with the projector being input? 186
Lens shift cannot be
adjusted
f Perform [LENS CALIBRATION]. 125
f Is the xed-focus lens (Model No.: ET-DLE055) attached? ―