plasma TV - T4AH/250V fuse keeps blowing

[Reek]

TV fuse keeps blowing

I have a plasma TV with dim display. When I checked the X-sus board, I found one of the two fuses was blown. The fuse was rated T4AH/250V. I replaced the fuse with the same type and voltage but it blew up with high pitch sound when I turned on the TV.

I heard some people saying if the fuse is blown there could be shorted components in the circuit. The main power supply that connects to the X-sus via cable wire has a Thyristor and could this component be the culprit? Or could the failed diodes have affected it?

Also, is the T4AH fuse a slow-blow or fast acting fuse?

Any input will be appreciated.

 

[pranam77]

TV fuse keeps blowing

Yes.. there may be sone short circuits in the later circuits. Thaz why the fuse blows. Cheers

 

[horzcat]

TV fuse keeps blowing

You should contact the TV manufacturer. You can replace the fuse with a fuse of same voltage but a higher current rating also, but that could be dangerous.