Infamous Toshiba power supply

I have several old Toshiba T1000 laptops, which all are suffering from the (known) problem, where the onboard switching power supply has failed. When you turn on the power switch, the power light comes on for a moment, then winks out (or flashes in some cases). I have been told by a Toshiba insider that this was a well-known defect (much like Toshiba floppy drives) but Toshiba was never willing to own up to it. Hard to say if this is true or not. This problem can be seen in may models of Toshiba notebook, I have even heard of it on Pentium class machines. I'm told that there is a fix, but the techs were not allowed to do it - the official remedy was to replace the board. A person with limited English once told me that I needed to replace the 'filters' on the board - to which end I replaced all of the electrolytic filter caps. The machine ran for 30 seconds, before relapsing. Does anyone know the right fix for this problem? I would be in your debt.. -- Bill Layer Sales Technician <b.layer(a)vikingelectronics.com>