Runco LS-3 User Manual

Colors in the image are 
swapped; for example, reds 
appear blue or vice versa. 

• The  Red/Pr,  Green/Y  or 

Blue/Pb outputs from the 
source are connected to 
the wrong inputs on the 
LS-3/LS-5.

• Ensure that the source 

outputs are connected to 
the correct LS-3/LS-5 
input. 

LED is flashing alternating 
green and red. 

• The lamp cover is open.
• The lamp has failed or 

exceeded its usage life.

• Close the lamp cover.
• Replace the lamp with a 

new one. 

LED is flashing red. 

• LS-3/LS-5 internal 

temperature is too high.

• Power off the LS-3/LS-5 

and allow it to cool down. 
Ensure that the intake and 
exhaust vents are not 
blocked. Turn the 
projector back on. If the 
problem persists, please 
contact Runco Technical 
Support for assistance. 

LED lights solid red.

• Fans are not working 

properly or power-on 
self-test has failed (Note). 

• Please contact Runco 

Technical Support for 
assistance.