Toshiba 46rv350u No backlight, No picture but has sound
Hey my first post and I'm already begging for help 
My name is Joel.
Toshiba 46rv530u
So I have had this tv for 8 years and it has had alot of use. By use I mean kids, grandmothers constantly leaving this thing on. So about 1 month ago I was watching tv and I noticed these 2 extremely narrow colored lines (literally the size of a hair) running all the way down the tv vertically on both sides equal distances from each side of the tv. It was the one and only time I had ever seen them and they never returned. Whether or not this is important information to the problem I have now I figured sharing it go be vital to the repair of this.
So a month has past from this incident and I had the tv on, I went into the other room for a few minutes and left the tv running as I was going to return to it. I walk back out and just see a black screen. I assumed it was a new commercial I had never seen, thought nothing of it walked away only to return to it still being black.
So here is the problem in short:
1) No picture
2) No backlight
3) Working sound
So not being a tv repairman I resorted to online information and absorbed all that I could to perform a few troubleshooting tests.
Tests I did
1) tried different inputs with same results
2) opened up the tv looked for buldged/popped capacitors and then looked for burnt chips. nothing.
2) checked main fuse. was good
3) observed the backlight was not lighting
4) did the flashlight test and could not see any images
5) discovered a second fuse on the main power supply which is fried. it was so dark I had mistaken it as a resister pack the first time I examined the board, lol.
red line points to its location
So I discovered this burned fuse, it is a t2.5al250v which I am hesitant on replacing. Fuses typically burn out for a reason although with this one being on a power supply and it being a time delayed fuse I suppose the possibility of it reaching its end of a life in a mechanical failure kind of way is possible. I really don't want to start replacing parts randomly as this tv is 8 years old and isn't very efficient compared to the new tvs, plus it heats up the room like crazy! My best guess is that its a PS problem but could also be the inverter, again just guessing as my knowledge is pretty basic on tvs.
I'm hoping someone can shed some light on this problem, otherwise I think I will just upgrade. Thanks for taking the time to read this and supply me with any help I receive.
My name is Joel.Toshiba 46rv530u
So I have had this tv for 8 years and it has had alot of use. By use I mean kids, grandmothers constantly leaving this thing on. So about 1 month ago I was watching tv and I noticed these 2 extremely narrow colored lines (literally the size of a hair) running all the way down the tv vertically on both sides equal distances from each side of the tv. It was the one and only time I had ever seen them and they never returned. Whether or not this is important information to the problem I have now I figured sharing it go be vital to the repair of this.
So a month has past from this incident and I had the tv on, I went into the other room for a few minutes and left the tv running as I was going to return to it. I walk back out and just see a black screen. I assumed it was a new commercial I had never seen, thought nothing of it walked away only to return to it still being black.
So here is the problem in short:
1) No picture
2) No backlight
3) Working sound
So not being a tv repairman I resorted to online information and absorbed all that I could to perform a few troubleshooting tests.
Tests I did
1) tried different inputs with same results
2) opened up the tv looked for buldged/popped capacitors and then looked for burnt chips. nothing.
2) checked main fuse. was good
3) observed the backlight was not lighting
4) did the flashlight test and could not see any images
5) discovered a second fuse on the main power supply which is fried. it was so dark I had mistaken it as a resister pack the first time I examined the board, lol.
red line points to its location
So I discovered this burned fuse, it is a t2.5al250v which I am hesitant on replacing. Fuses typically burn out for a reason although with this one being on a power supply and it being a time delayed fuse I suppose the possibility of it reaching its end of a life in a mechanical failure kind of way is possible. I really don't want to start replacing parts randomly as this tv is 8 years old and isn't very efficient compared to the new tvs, plus it heats up the room like crazy! My best guess is that its a PS problem but could also be the inverter, again just guessing as my knowledge is pretty basic on tvs.
I'm hoping someone can shed some light on this problem, otherwise I think I will just upgrade. Thanks for taking the time to read this and supply me with any help I receive.
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