Where can i buy the ceramic fuse for my toshiba flat screen?

possible bad power board

have you checked for dry joints or blown capacitors , with a power surge depending what kind voltage or amperage the circuit received it might have even blown screen connect it will certainly fry a lot of components ,have you looked for holes in capacitors ,resistors or burnt tracks between components . that's about all I can think of to check also some power panels have built in fuses to stop surges if you could obtain a circuit diagram that should help you also you could google your query and see if you get any assistance it costs nothing and you could get your TV up and running again . All the best .

Check all the AC input connections. As the power board is new, the TV should show standby light at least, when you switch it ON.
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Check whether there is a line fuse inserted at AC path. Check whether there is a plug-fuse included inside the power plug.

There is a 20A fuse on the AC power board it is most likely blown. Follow the power cable to the board the big white ceramic fuse is the main, check continuity with meter and replace.

It can be affected due to current surge on the line, the most probable affected area is the power section of your TV. Some incidence are only fuse blown out where you can replace the fuse with a new one just be sure that the rating is the same. But others are major components like MOSFET, Thyristor, Varistor which are usually sensitive on current surge.

Now ur tv LED power light indication on the front LCD panel flashes?Yes,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay,com to buy a refurbish power supply board for the replacement.

Look at the power supply module, most of them will have a surge protection devices (called MOV, same as used in common surge power strip but cannot handle big surge that power strip can handle) installed to protect minor surge, it should blow the fuse. Once MOV blown, it will more likely stay short circuit, if you put the new fuse in it will blow the fuse right away. You need to see if the MOVs blew up any sign of blown up components.

check the branch circuit of your convenience outlet..the circuit breaker may have tripped..try to connect other appliance to the outlet where your TV is connected..this is to ensure there's power in it..if you are certain then that there's indeed power from the outlet you are sure that the TV is not working..check TV fuse and replace if blown..check resistance between the plug terminals after fuse replacement..if resistance is low, change voltage dependent resistor (VDR) with same value..it is a disk type resistor that looks like a big ceramic capacitor located just after the fuse..either blue,black or red.blown fuse may be due to power surge during the night..

I would suspect it has blown a fuse, more than likely on the Y-sustain board due to the power failure causing a surge. Possibly just replcing the fuse may rectify things but if it were to blow straight then the power failure has caused some component damage & would need to be investigated further by a repair engineer.