I have a 32MF231D/37 that no longer gets any power. First thing I tried was replacing the fuse, and it continues to trip as soon as power is applied. I then isolated the board (unplugged all the cables and removed it from it's case to ensure that it's not being shorted by something in the case) and the same thing happens. As soon as power is applied, it shorts.
Any ideas? Obviously I'm looking for a cheap fix, as the TV is only worht about 700 bucks.
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Re: Power Supply Keeps Tripping Fuse
Freeze the capacitors is a trick worth trying. These usually are the problem
the way you run this is too use freeze spray to freeze each capacitor one at a time . Turn the TV on and if it doesn't trip for a few second longer you know that is the capacitor to change. Freezing capacitors only helps identify the fault if it is a capacitor issue (usually is with power on TV's)
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Blown fuse or bad capacitor on the power supply. the set and remove the back panel. Locate the power supply. There is usually a fuse in line with the hot supply wire. Check it for continuity with an ohmmeter. Look for bulging electrolytic capacitors on the power supply. Electrolytics are polarized (+-) and can fail if they go even slightly overvoltage. Replace bad capacitors with components with the same microfarad rating but a slightly higher voltage rating. I.E. replace a 16 volt cap with a 25 volt cap.
Earl, First, let me ask you...are looking for the power supply or the signal board? The reason I ask, the product shown, is the signal board. In some cases a bad power supply can ruin the signal board.You will know this when examining the signal board (will be burned). But you ask for the power supply. This power supply is difficult to find, that is why you ask to locate one. You may have already checked with shop jimmy.com. So, lets ask for a rebuilt power supply. Call Union Electronics at 1 800 648 6657. Call Andrews electronics at 1 800 274 4666. These places will rebuild or exchange boards. Have your TV model number and if you can the power supply in hand with the part number. The part number is on the board,, with white tape (will start with 313#). Another thing to try, is to locate a TV Repair shop. They may have a salvage area with a working power supply. As to say the same TV with a shattered screen etc. Thanks for asking me Earl....good luck, Matt.
you have a short most likely on the power supply but could be on the mainboard, inverter board, av/input board. The T-con board is fused and should blow its fuse before blowing the fuse on the power supply. I'm going with a faulty power supply, most likely a shorted Mosfet.
First thing to do if your television have no power is check the power outlet,then the AC cord continuity.If the ac cord have power supply,check the fuse,maybe the fuse is busted.Its is located at the power supply.So try to remove and open the back cover of your TV and look the power supply and replace the fuse if busted.Replace same value of fuse.Try this procedure,hope it will help you.Thanks..
The first thing to do would be to get an electrician to your home to check that the problem is not with your supply. If you ask nicely then the same guy could probably check your fryer for short circuits - the most likely culprit if the problem is intermittent is the plug on the power cord, the cable and the connection inside the fryer where the cord goes in - check that all these are ok.
The other possible cause could be a faulty element, however this is unlikely to be an intermittent fault, and it would usually get worse quickly to the point of not working at all.
Hope this helps - please post again if not :)