Projector shut off suddenly after view minutes

This is about how to repair the LCD Projector that shut off suddenly just after turned ON for a view minutes. Shut off and nothing indicator of the Projector panel that lit. What cause of this problem? This is the great question, the answer is that the power supply of this LCD projector have get the trouble.
The power source managed by the power supply cannot covering all power needed by the projector to work as it should be. So to fix this problem is by replace the power supply, problem solved, but you should know that price of this power supply is about $50 - $100, this is not a cheap price i think.
So, how to fix the projector that shut off suddenly after turned ON for a view minutes but not need to many money?
This is the important thing in the repair service, where we should fix any problem with costs as low as possible but the problem fixed perfectly. 
Ok follow the following instruction or steps to fix this.
1. Open the upper case of the LCD projector, i use the BenQ Projector LCD for example.
2. Take out the main modul (mainboard) to access the power supply that placed bottom of the mainboard.
3. Take the power supply out, and look for the Regulator IC with the code TOP256YN ( according type of the projector LCD )
4. Replace these Regulator IC so the problem fixed.
5. Finish and reassemble the projector LCD
I have some photo for this project, and i will share next times. I hope with this post you can repairing the LCD Projector that shut off suddenly just after turned ON for a view minutes.