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TV keeps blowing fuse - Televison & Video

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  • ryan_adamson Oct 02, 2008

    Hi, I have a Mitsubishi VS-45607, and it keeps blowing the F900 fuse. I ahve replaced this fuse a few times, and when I plug it in and try to turn it on, the fuse popps. Can anyone help me and tell me what could be wrong with my Television?



    Thanks,



    Ryan

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You have a direct short in the power supply. Check the horizontal ouput and the low voltage regulator transistors for being shorted.

Posted on Apr 11, 2008

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1 Answer

Tv fuse keeps blowing


What is the brand name to your TV? If fuse should blow out, there should be a reason for that, Some shorted component/s at the power supply regulator board. Check it out first, replace the damaged component/s, before replacing an other fuse. Just note; do not insert a fuse which have other rating than specified. If you wish to get more details, http://electronicshelponline.blogspot.com/ Pull up older posts there, either by its left side bar, or see it in Timeslide option.

Jun 21, 2013 | Televison & Video

1 Answer

Keep blowing the main fuse.


To which circuit section did you replaced the fuse? Main power retulator? Just understand, the fuses are used to protect the circuit and TV from any short circuit or over voltage. Without any one of these, no fuse will blow up. If it was due to over voltage, the set should work after a fuse replacement. But here, the fuse blow up again, means, there is some thing shorted component/s. Check which component is shorted, and replace it, before replacing an other fuse. One more thing to say is, never insert a fuse other than specified. The voltage and ampere specification to fuse, will be marked at the circuit board, very near to the fuse clamp. Insert a fuse of same rating only. Using other fuse, rated higher ampere rating, might make things worse.

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1 Answer

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samsung motherboards are bad for going out. they are 125 dollars online, if you have the technical skills to replace them.. basically just plug and play, with LOTS of screws to take off.

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1 Answer

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Hi,
If your fuse keeps blowing you have a shorted parts, if you have a multimeter and know how to use it you can check parts around power supply like diodes, IC's, regulator, and also check the horizontal output or you can call your nearest tech around your area to help you out. if you need more information about tv troubleshooting tips, try this site.
www.my.electronicshelponline.com
hope this help.

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1 Answer

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Yes! it sounds like a power supply problem! or the flyback in the main board needs replaced ( part is in the $70.00 range

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1 Answer

My phillips 42" flat screen model number 42pf7621d/10 keeps blowing the fuse in the plug usually after we have turned the tv off and its in standby mode or overnite when we sleep ive just change...


What is rating of fuse in your TV like amperes and volts.
There is Thermistor in TV for degaussing the picture tube while in start up. This part requires heavy current to work for a second or two.
You can increase little bit current rating of fuse to avoid blow off.

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1 Answer

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there could be a shortage in any of the dc line that cause the fuse to blow up again, either overloading or chortage will cause this, try to see for any sign of other componenet failure, wires that has been bended and cripped, transistor that has been twisted or alike

cheers

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1 Answer

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Well you could always use a bigger fuse but I would not advise to do it, it could and most likely will blow tv not fuse. Fuses ussually blow from a short or power surge. If it is new or under warranty I would return it for replacement or repair.

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1 Answer

Blown fuse


Most likely there was a power event (surge, brownout, ect) that caused the power supply to fail in the TV causing the fuse to blow. you will need to have someone come and look at the unit and give you an estimate. If you keep putting fuses in and blowing them you could actually be causing more damage.

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1 Answer

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should be covered under your insurance might give them a call.
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