Facing TV Problems? Ask a TV Technician.
Replacement HV power supplies for this TV chassis are no longer made, and are therefore difficult to find available.
I have checked many different suppliers over the past two hours, and none have a board for this model in stock.
Your two best options are to obtain a faulty set which you can salvage the board from, or get your own board repaired.
There are some ebay sellers who offer a repair service, e.g. http://www.ebay.com/usr/knddiscounts?_trksid=p2047675.l2559