WS-55909 convergence problem turns now into F9A04 Fuse issue
I had this happen on my WS55909 about 2 years ago. I dont remember what the circuit id's for the fuses were, but out of 6 fuses on the middle board, the two in the middle were blown. I traced the circuit schematic and found that only the convergence IC could cause these fuses to blow. It sounds like you already put in a new convergence IC (the one with the big-*** heat-sink which probably also needs a fan) but you need to make sure all those fuses on that board are still good. After I replaced that IC, my TV still didn't work. I went and double checked for continuity of all the fuses on that board and one was blown (after checking all of them and replacing the IC). Replaced it and the TV has worked ever since. Total repair cost was 23 bucks.
Professionals recommended that I would be better off just buying a LCD TV than fixing my rear projection TV, but I still dont think you can get one of those as big as 55" for only 23 bucks! ****.
BTW, mitsubishi would probably tell you otherwise, but you don't have to use those "littlefuse" fuses. I soldered in a fuse-holder for a glass fuse of the same value (5amp 125v in my case) that can be purchased at radio shack. A fuse is a fuse. My TV never burst into flames.
Apr 06, 2010 |
Mitsubishi VS-50501 50" Rear Projection...