I have a Samsung HT-TX500, which is one of those home theatre in a box systems, not the best I know but does the job. Lately I've had trouble turning on the amp. When you press the power button, the power light goes out for a second (as per normal) but then comes on again and the amp stays in standby.

This has happened for a while, usually I just keep pressing the button over and over, and eventually it wakes up. It seems to be getting worse, as in I have to press it more times before it powers on.

I've done a google search, links below, it seems a few people had the same problem. I've tried unplugging it, overnight in same cases but doesn't seem to make a difference.

http://www.justanswer.com/electronics/31xnv-hi-i-having-problem-home-theater-system-samsung.html
http://www.fixya.com/support/t9772076-home_cinema

If it is a blown capacitor on the power supply like the links suggest, how much would somewhere charge to do this? Any recommendations in for a place in Auckland to do this? I've used Next electronics in the past, seems overpriced for what they did.