Panasonic PT-MZ680

Chapter 6 Maintenance — Troubleshooting
178 - ENGLISH
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>? 58
f
Is the wall outlet supplying electricity? ―
f
Have the circuit breakers tripped? ―
f
Is the light source indicator <LIGHT> blinking? 172
f
Is the temperature indicator <TEMP> lit or blinking? 173
No image appears.
f
Are connections to external devices correctly performed? 43
f
Is the input selection setting correct? 59
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? 63, 104
f
If the power indicator <ON (G)/STANDBY (R)> is blinking red, consult your dealer. ―
Image is fuzzy.
f
Is the lens focus set correctly? 60
f
Is the projection distance appropriate? 35
f
Is the lens dirty? 24
f
Is the projector installed perpendicular to the screen? ―
Color is pale or grayish.
f
Are [COLOR] and [TINT] adjusted correctly? 77, 77
f
Is the external device connected to the projector adjusted correctly? 43
f
Is the computer cable damaged? ―
Audio is not output.
f
Is the external device connected correctly to the audio input terminal? 30
f
Is the volume set to minimum? 64, 118
f
Is the mute function used? 63, 118
f
Is [AUDIO IN SELECT] in [AUDIO SETTING] correctly set? 118
f
Is there a cable connected to the <AUDIO OUT> terminal? 43
Remote control does not
respond.
f
Are the batteries depleted? ―
f
Is the polarity of the batteries set correctly? 31
f
Are there any obstructions between the remote control and the remote control signal
receiver of the projector?
28
f
Is the remote control being used beyond its effective operation range? 28
f
Are other forms of light, such as uorescent light, affecting the projection? 28
f
Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]? 132
f
Is the ID number setting operation correct? 69
Menu screen does not appear.
f
Is the on-screen display function turned off (hidden)? 64
Buttons on the control panel
do not operate.
f
Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]? 132
Image does not display
correctly.
f
Is [SYSTEM SELECTOR] set properly? 80
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? 202
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” keys or the “Fn” + “F10” keys
simultaneously. This will differ depending on the model of the computer. Refer to the user
manual provided with your computer.)
―
Video from HDMI compatible
device does not appear or it
appears jumbled.
f
Is the HDMI cable connected securely? 43
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? 202
No audio is coming from the
HDMI compatible device.
f
Set the audio for connected device to linear PCM. ―