3M MP7740i Operator's Manual

Also see for MP7640I: Product safety guide Operator's guide Specifications Operator's guide

3M MP7740i Operator's Manual Manual pdf 23 page image

ENGLISH-21ENGLISHTTTT RRRR OOOO UUUU BBBB LLLL EEEE SSSS HHHH OOOO OOOO TTTT IIII NNNN GGGG (((( cccc oooo nnnn tttt iiii nnnn uuuu eeee dddd ))))SymptomBefore requesting repair, check in accordance with the following chart. If the situation cannot becorrected, then contact your dealer.Table 11. SymptomSymptom Possible cause Remedy PageThe power is notturned on.The main power switch is notturned on. Turn on the main power switch.7,8The power cord isdisconnected.Plug the power cord into an ACpower outlet.No video or audio.The input is not correctly set. Use the projector or remote controltransmitter to set. 9No signal input. Connect correctly. 6,7Video is present butno audio.The projector is not correctlyconnected. Connect correctly. 6,7The volume is set to minimum.Press VOLUME on the remotecontrol or display the menu screenand adjust the volume.10,14Mute is turned on. Press the MUTE button. 10Audio is present butno video.The projector is not correctlyconnected. Connect correctly. 6,7The brightness is set tominimum.Select BRIGHT with the MENUbutton and the press the button. 11The slide lens door is stillclosed. Open the slide lens door. 8Colors are pale andcolor matching ispoor.Color density and colormatching are not correctlyadjusted.Adjust the video. 11Images are dark.Brightness and contrast are notcorrectly adjusted. Adjust the video. 11The lamp is nearing the end ofits service life. Replace with a new lamp. 16,17Images are blurred. Focus or H PHASE is out ofadjustment. Adjust the focus or H PHASE. 8,113M™ Multimedia Projector MP7740i© 3M 2002. All Rights Reserved.