20English AppendicesTroubleshootingIf you experience a problem with your Acer projector, refer to the followingtroubleshooting guide. If the problem persists, please contact your local reselleror service center.Problems and Solution# Problem Solution1 The projector stopsresponding to allcontrolsIf possible, turn off the projector, then unplugthe power cord and wait at least 30 secondsbefore reconnecting power.2 Image or projectorproblemsPlease refer to projector CD manual’stroubleshooting.3 USB/SD read fail Please make sure the USB device or SD card isgood and well inserted. Remove to try forseveral times if necessary.4 USB drive fail USB does not support USB hub function andwhich power consumption is over 500mA.5 Media file notfound or can’t beopened in file listThe files by un-supported codec won’t be shownon file list. Please check the media support tableagain in this manual.