My 18-month old Samsung LN-T4665F LCD TV started delayed power on symptoms several weeks ago, and became progressively worse with time. Longer clicking at start up and pixelation that required powering off then back on. After reading the experiences of others, and after getting a $400 estimate to repair the set, I opened the TV and power supply unit. There I found two bad 2200uF 10V capacitors. I purchased 2000uF 25V capacitors, and viewed several youtube tutorials on soldering and de-soldering circuit boards. I was able to replace the bad capacitors and now the TV powers on like new with no pixelation at all. The soldering equipment and experience may serve me well, because I noted other capacitors in the power supply that may require replacement at a future date.
My TV started making this awful clicking sound during our thanksgiving day family event. Everyone was mad because we coudln't watch movies we rented. I looked up my warranty and I was 3 months out. I goggled clicking sound and found many others have had this issue as well with samsung. Seems the issue is perfectly timed to fail just outside the 1 year warranty. It appears the issue is the use of cheap electrolytic capacitors to save money or too low of a voltage. Since I have 10 years of CRT repair experience I quickly pulled the back off my TV and located the caps, 2 1000 UF 10v caps. Both were bulging at the top. I pulled them both and tested them on my digital LCR meter which I bought 15 years ago for a contract project both were reading about 10-60 uf. I noticed Frys electronics was open at 5am for black Friday I went down around 7 it was really busy all the parking spots were full but I was able to get in and the checkout was really fast they had about 50 cash registers open. Total repair cost $7. I'm surprised to see such issues so fast the CRT monitors I used to work on in the 90's lasted years before you would see this issue.