I have a Samsung LNT4665FX/XAA version SX10 and isn't powering up. It's making a clicking sound for a half an hour and still no power. Can i troubleshoot this problem? How can it be fixed?

First of all stop trying to turn the tv on because you can damage a second board by repeatedly attempting to power the set up after a power supply failure. I have seen it on this model. Usually what happens to this set is the power supply filter capacitors fail. If you were to look at them you would see they are physically bulging. These capacitors are rated at 2200uf/10volts. They can be changed with a higher voltage capacitor to outlast the original components. If you choose to replace the entire power supply more than likely this will happen again in a few years. Anyone who can solder somewhat can replace these parts and repair the problem. A reasonable repair cost for this repair would be between 95-175 at a repair shop. Good luck, Russmann. You're welcome.

SAMSUNG BN44-00168A POWER SUPPLY SIP460A for SAMSUNG LNT4642HX/XAASAMSUNG LNT4661FX/XAASAMSUNG LNT4665FX/XAA https://www.abctay.com/original-samsung-bn4400168a-power-supply-sip460a-p-3567.html