INSIGHT 4K LASER User Manual 
 
 
6.  Appendix 
6.1. Troubleshooting 
Before asking for repair, please check your connection, settings and operation once again. If the trouble cannot be corrected,  please contact 
your dealer/distributor for instructions or repair.
 
6.1.1. Problems and where to check 
Problem  Check these items 
The projector cannot be turned on.  Check to see if AC power is supplied to the projector. 
Make certain that the main power switch is ON. 
Check to see whether the panel key lock function is activated. If so, the main unit’s 
control  buttons are locked and do not work. 
Is the temperature inside the projector too high? When the inside temperature is too high, the 
protective function does not allow your projector to be turned on. Wait some time and then 
Are  you  using  the  projector  at  high  elevations  with  an  altitude  of  approximately  5500 
feet/1600  meters or higher?  The  cooling  fan  settings need to  be  configured  when  using the 
projector at high  elevations. Please contact your dealer/distributor for instructions. 
The image cannot be projected.  Check to see if the connected input has been selected. 
Check to see if a cable is properly connected to the input terminal. 
Check to see whether the douser is closed. 
Check to see if the settings are all adjusted properly. 
Check to see if the protractor is properly set up. 
The image is blurred.  Make certain that the lens is properly focused. 
Check to see if the screen and a projector are installed at correct angles. 
The projection distance may be larger than the focusing range. 
See if the lens and other parts have condensation on them. If the projector is turned on in 
a  warm place after storage in a cold place, the lens and other optical components inside 
may develop condensation. In such a case, please wait several minutes until the 
Video image is disturbed. 
Check whether the signal cable connected to the projector is disconnected. 
The SYSTEM status indicator blinks 
Your projector may have trouble. Please contact your dealer/distributor for instructions. 
An error code is displayed.  Please contact your dealer/distributor for instructions. 
 
   
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