I fixed two Samsung 225bw lcds with this problem, by replacing three capacitors each (about $5 value total). You can do the same, if you have a soldering iron, though it is not a difficult job. I found helpful information at: http://www.badcaps.net/forum/
This guide was perfect, I successfully repaired my machine with a replacement board.
I just wanted to make two comments that might help someone else following this guide:
* (Step 20) When inserting the replacement board, I had a bit of trouble getting it to sit in place; it would go in, but even when pushed, was about 1.5mm out of position. After a while I realised there was a tiny plastic rib under the board that seemed to be interfering. I pinched the plastic rib with pliers and then my board slotted fully into place.
* (Step 10, when reassembling) When replacing the top half on to the case, make sure the trackpad ribbon cable is poking through the small slot in the base chassis! First time I reassembled, the ribbon was folded up and I had to re-separate the case to poke it through.
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This guide was perfect, I successfully repaired my machine with a replacement board.
I just wanted to make two comments that might help someone else following this guide:
* (Step 20) When inserting the replacement board, I had a bit of trouble getting it to sit in place; it would go in, but even when pushed, was about 1.5mm out of position. After a while I realised there was a tiny plastic rib under the board that seemed to be interfering. I pinched the plastic rib with pliers and then my board slotted fully into place.
* (Step 10, when reassembling) When replacing the top half on to the case, make sure the trackpad ribbon cable is poking through the small slot in the base chassis! First time I reassembled, the ribbon was folded up and I had to re-separate the case to poke it through.