There is a long three short alarm problem occurs when the laser coder online, how to do?
 
The cause of this failure are the following:
 
First, we check the software did not work, there is no loose motherboard, if you turn on the computer re-inserted.
 
Secondly, Q drive when the warning lights, check the 37-pin and 15-pin loose and there is no Q switch has no normal through the water.
 
Finally, when the laser power warning lights when the chiller to check there are no open, there is no broken lamp, if there is to replace it.