69AppendixThe image is distorted or runs off – Check "PC adjustment" menu or "Screen" menu and adjust them.(page 33-34, 38-39)PIN code dialog box appears – PIN code lock is being set. Enter a PIN code (the “1234” or numbersat start-up you have set). See pages 22, 54–55.Page Up/Down function does – Make sure your computer is connected to the projector with USBnot work cable.(see page 19)– Check cable connection between the projector and your computer.(see page 19)The Remote Control does – Check the batteries.not work – Make sure no obstruction is between the projector and remotecontrol.– Make sure you are not too far from the projector when using theremote control. Maximum operating range is 16.4'(5 m).– Wireless reomete control does not work when the remote controlcable is connected to the projector.(see page 13)– Make sure the code of the remote control is conformed to theprojector’s code. See page 53.– Unlock the Key lock function for the remote control function. Seepage 54.– Check RESET/ON/ALL-OFF switch on the remote control is set to“ON”. See page 15.Alarm does not stop ringing – Connect the AC power cord to the AC outlet. (Alarm will notstop ringing when the alarm goes off while trying to remove therechargeable battery cover.)Indicator blinks or lights – Chek the status of the projector with referring to "Indicators andprojector Condition".(see page 73 )– In the case of the ALARM indicator blinks, check the setting.(seepage 58)Wireless Mouse function does – Check the connection between a projector and your computer.not work – Check the mouse setting on you computer.– Make sure the mouse driver is installed on your computer,otherwise, the remote control can not be used as a wireless mouse.– Make sure the signal is from the computer, otherwise, the remotecontrol can not be used as a wireless mouse.– Turn on the projector before turning on the computer.The exclamation mark appears – Your operation is invalid. Operate correctly.on the screenTop control does not work – The top control is not available if the top cotrol is locked at "Key lock"under "Security" of SETTING section. Please check "SETTING"section on page 54.Uable to unlock the Logo PIN – Contact the dealer where you purchased the projector or the servicecode lock, Security key lock center.or Security PIN code lock