Pioneer DVD recorder DVR-530H-S power off?

My pioneer DVD recorder powered off itself automatcially after the timer recording. I won't be able to turn it on again without turning on and off the switch several times.

In the begining I can get the power back on after turning off the machine for a minute and then turn on the power again. And this duration graudally gets longer and this situation last for a few weeks. And now I can't even turn it on again.

Anyone has the same experience and advise the problem and solution?

TSE
January 2008