My Samsung LCD #LN52A750R1FXZA will not turn on. It keeps clicking like it will come on but doesn't. I have read it could be the power capacitor. Has anyone had the same problem with this model? If so, how did you resolve?

buy new tv may be cheaper in long run

Had a similar issue with my set LNT 4061FX/XAA. After doing some research on line I found that Samsung company had an issue with some capacitors. There is a group action law suit. I found that my set was included. Called Samsung and they were extremely nice and helpful. They called a local repair shop, gave them a invoice charge #, and the repair shop ordered parts needed for me. I took TV to them (althought I was offered home repair), and my TV was fixed for "FREE"!!! Got it back and working better than it had in years!!!!! Thank you Samsung!!!!

I would suspect faulty power supply capacitors, check for any with bulging tops.

Sounds like a bad main board, but you will need to have the set diagnosed to make sure.

if you did find puffed up caps and replaced them consider replacing the power board as there may be other bad parts on it.

I've experienced similar issues with a 42" Samsung LCD TV. From what I've read online, I believe it could be a problem in the circuitry of the power supply. Apparently, Samsung used under rated capacitors in the power supply and the result is a turn on delay or blinking on and off. If this is the case, then the capacitors would need to be replaced to fix the issue.

This is a capacitor problem. Several Samsung models have bad capacitors installed on the power supply boards. Samsung currently offers a recall fix for this and other models. Call Samsung direct to see if your TV qualifies for this one time fix. It is a free fix, so if the person on the other end doesn't have a clue, ask to speak to a supervisor or hang up and try again.

Nothing to do with connecting the TV to the stereo, more likely you are having power supply failing, the clicking sound is from power relay, the power supply may have unstable DC due to bad DC filter caps, bad solder joints or loose connections.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Please post back what you find.

Check for swollen capacitors on the power supply board.Very common problem on samsung lcd tv's.