Question about Sharp 27H-S60 TV

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My sharp tv wont turn on. i checked out the board and relized the fuze was blown. i changed it out but blew immediatly after i tryd powering up. please help

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Check for a shorted bridge rectifier or diodes in the main power supply

Posted on Jan 08, 2009


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Posted on Jan 02, 2017


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I have a SHARP LC65le645u TV model. The tv wont power on anymore. It has the standby blue light on when plugged in but wont turn on. is it the main board?

The only thing the main board does as far as a set turning off and on is supply the power supply on voltage (PSON) to the power supply board, if your getting a change on that pin then the main is doing its job if not your main is bad

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Sharp 19" flat panel tv has no standby light and wont turn on cant find any blown fuses ?

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.

Sep 10, 2014 | Sharp Televison & Video

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Sylvania LC320SLX 32 in. LCD TV wont turn on

There is short circuited component/s at its main power supply regulator board. Check and replace them. It is best to replace the circuit board as card bassis, rather than trying to repair it.

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1 Answer

42 inch sharp tv wont turn on no red light

check blown fuse at the power supply board.but before you replaced it with new one a component testing must be applied. check for a bad parts at the power supply section.

Sep 18, 2012 | Proscan PS27500 27" TV

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I accidentally got the negative and positive leads crossed while changing the battery on a 2000 Kia Sportage and it blew the main power fuse block. I replaced the fuze block and got power for all the...

Most have a fuse block under the hood and one under or at the driver side of the dash....It probably wont be in plain sight without removing a plastic shield...check owners manual for the location.They seem to always put them in a good hidden place away from any danger to the fuses.If you dont have a owners manual I would call kia dealer and ask for location.

Feb 26, 2011 | 2001 Kia Sportage

1 Answer

Where are the fuzes located and where when i remove the back

Look where the power cord plugs in to the back of the set. On a typical Westinghouse flat panel TV, it goes to a steel box with a line filter inside it. There will be a green wire from there to the frame of the TV and two more wires (on mine they are blue and brown) going to a connector on the power supply board. The fuse will be on the power supply board near that connector.

If this fuse is blown, simply replacing it will simply give you another blown fuse. You need to find and fix the problem that blew the fuse, usually a shorted diode, switching regulator chip or transistor on the power supply board. DON'T try to cheat with a bigger fuse (I'm sure you know better, but I've heard of a few guys who tried a screwdriver across the fuse contacts - a good way to cause a lot more damage). Leave the set unplugged, and use an ohmmeter to check for shorted semiconductor components.

More commonly the fuse is good, but a shorted diode or bad capacitor in the secondary side of the standby power circuit (on the power supply board) is keeping the set from working.

Oct 24, 2010 | Westinghouse SK-32H240S Television

2 Answers

Tv wont turn on keeps blowing fuze when powering up


The voltage tapping is set too low for the voltage you got at home. Make sure that you check.


Jan 07, 2009 | Sharp 27H-S60 TV

1 Answer

My samsung 711mp tv/monitor wont turn on, the green light flashes but immediatly turns off again

I have this problem too. I have solve it by change all the capacitor at the power circuit board. If you need the layout picture of the circuit board just email me.

Apr 20, 2008 | Televison & Video

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