This TV is in our home in Mexico, so I am getting this information second0hand from our house manager there. Online discussion forums seem to relate this problem with LCD-TV's but I have not found a solution.
I do not know if there are other problems. This is the only problem that has been reported. However, it is quite troublesome and has wakened our tenant in the middle of the night out of a sound sleep.
So I should be able to purchase a Philips part called a "Mainboard"? Is there any other name for such a part?