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Troubleshooting > When You Suspect a Problem
f Image is dark
f No sound can be heard
• Does the lamp need replacement?
When the lamp is due for replacement, colours will weaken and the image
will become dark. Replace the lamp when this is the case. s "Lamp
replacement period" P.57
• Has the image brightness been adjusted
correctly? ([Menu] button → "Image" →
"Picture Quality" → "Brightness")
s "Image menu" P.35
• Has the image contrast been adjusted
correctly? ([Menu] button → "Image" →
"Picture Quality" → "Contrast")
s "Image menu" P.35
• Is A/V Mute activated?
The projector may be in A/V Mute mode.
Press the [A/V Mute] button on the remote control to cancel A/V Mute.
s "A/V Mute" P.28
• Is the volume turned down to the minimum
setting? ([Menu] button → "Setting" →
"Volume")
s "Setting menu" P.38
• Is the audio source connected correctly?
s "Playing sound from a computer" P.14 , "Playing sound from video
equipment" P.19