Just to confirm Toshiba AKA Grundig Accoro 102....,
I'm curious but if you were to remove the back cover, 10 screws, (with mains plug removed from socket) you will see two large heat sinks (large shiny metal blocks), immediately below these there are three 7-pin connector plugs labelled Green, Red and Blue. When I remove the Blue connector the Tv switches on no problem and everything works, obviously less the Blue light gun so picture is un-converged and missing blue colour. If then I plug the Blue connector into the Red socket (with the mains plug removed from the socket), again the Tv switches on OK no problems, so at least this then eliminates the problem lying with the blue gun at least and proves the fault lies within the power distribution board PB9487.
If you feel comfortable doing this then it would be well worth doing to troubleshoot the fault and to see if we are both aiming towards the same fault and symptons.
Best Regards
rob, October 2006