Number 2 in upper right corner of samsung dlp TV

You are right, this is caused by a faulty power supply that gives you bad voltages. So it can get worse in time.

Fan #2 is the fan that blows air accross the lamp itself. It sits in the far upper right corner covered by a shroud. The ONLY way to remove the fan is to remove the complete light engine itself. I would recommend a technician to do so : )

make sure put the lamp door back before trying to turn it on because they have switches on them that allow the tv to turn on. If that is ok you probably have a bad ballast.
Call a local tv repair shop to further diagnose the problem.

Sounds more like the TV is overheating. The lamp cooling fan may be seized or not spinning fast enough. If the TV gets hot enough to trip the thermal, it could rupture the lamp.

check the uhp lamp

some flat panel tvs are very tempermental like this...your best bet is to call the customer service number for your tv and ask them what to do.

It looks power board problem.
You need to get service from Samsung.

Had this problem also when I rebooted my Time Warner Cable box. Unplug everything from the wall including power strip and wait 60 seconds then plug back in and turn everything back on. Worked for me and havent had a problem since. Time Warner does not know what causes this yet.

Because the issue is occurring in multiple brands of TVs, mine is a Samsung plasma, the element that is linking all the issues together is the cable and/or SATELLITE boxes. I have actually called Samsung and they disavow any responsibility for the 2 and say that it is a cable issue. I have to agree. THE SOLUTION is to replace the cable box with a new box. I just did this last week and the 2 was gone. So if you are having this problem then i recommend trying the same thing. REPLACE YOUR CABLE BOX and/or SATELLITE TV BOX AND THE 2 GOES AWAY...at least it did for me.

This Tv make a lot problems with the color wheel and fan thermostat, lamp cool. Need be check the color wheel first. I am suggested dont have nothing on the back cover ( make hot or not ventilation). More information parts at tritronicsinc.com Thank you