Ok so I have a smd fuse 3a on a main board I have that needs to be replaced. I don't have any extra ones but I do have a 5a laying around. Would it really be that bad to put the 5a in place of the 3a. Or do I need to order a 3a.
Smd fuse replacement
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Re: Smd fuse replacement
Haha. I might just do it anyway. I'm hoping it will fix the problem w/ the main board.Comment
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Re: Smd fuse replacement
I have seen various warnings in tv's, home electricity, and car fuses that you should always replace the fuse with the same type/amperage.Comment
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Re: Smd fuse replacement
Ah, ok, you still have a problem with the board? In that case do not replace it with a fuse with a higher current rating. It gets damaged for a reason. You may end up damaging traces if you pass too much current through them.Comment
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Re: Smd fuse replacement
Yea it still didn't fix the problem. I'm almost completely exhausted on this tv. I checked all fuses for voltage. All caps good. All points on power board getting correct voltage. I have no idea where to go one this one. The heat shield on the main board still gets kinda warm. Not so warm it burns but enough to notice. The tv is a m550nv vizio that when plugged it logo flashes for a while then goes to stand by. U turn it on and the backlight turns on but no picture on screen. If u hit the power button to turn on menu the screen dims but no image.Comment
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Re: Smd fuse replacement
No I don't. Left it in my other spy bag. Lol jk. But originally I had to replace a melted capacitor that was underneath side of the main board next to where the heat shield would be.Comment
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Re: Smd fuse replacement
I don't know what it was connected to but the last picture showed the plastic part melted down. So I replaced it but did a real bad solder job.Comment
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Re: Smd fuse replacement
The cap on the last picture has very likely not been mounted like this in factory. Somebody replaced it already. Was it shorted?
You can determine what it is connected to when you follow the traces back to the power supply. I assume it to be on GND on one side and on 3V3 or %V on the other side.Comment
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Re: Smd fuse replacement
I wasn't sure. I don't have the board infront of me right now. Before I replaced the cap the tv wouldn't even power on or have the logo light up. And after I replaced it it will turn on but no image.Comment
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