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Internal fuse keeps blowing and unable to power up on a Daewoo DTE-2898GB TV Set.

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Typically this is because the horizontal output transistor is shorted or there is a major problem with the power supply. If you have no experience with TV repair, I would bring this in for a repair estimate.
Dan

Posted on May 02, 2008

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How to pix daewoo 21" FLAT PANEL TV NO POWER


Here's how to pix it: Usually a fuse is on the power supply module inside the tv. You'll have to replace the module.

May 13, 2014 | Samsung DLP HL-P4663W 46" Rear Projection...

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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.

May 27, 2013 | Mitsubishi WD-73827 73" HDTV DLP TV

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Samsung dlp 5065w keeps blowing fuse


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.

Oct 06, 2012 | Samsung HLN5065W 50" DLP TV

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I have a RCA HD50LPW175 TV and it keeps blowing the 6-Amp fuse125v. Why?


Either you have a dead short or you used the wrong fuse--not all 6a fuses are the same---buy a cheap generic one from Radio shack etc and it can blow for no reason.

If not the wrong fuse---the fuse you are talking about should be where power enters the set--means a short on primary side of set's power supply---somewhere between power cord and input side----possible the bridge rectifier is shorted.

l have usually seen this when there was a power outage or a surge on the incoming power line.

May 28, 2012 | RCA Projection Televisions

1 Answer

Had a power surge into the house- the tv was not on a surge protector and i am wondering if the tv is blown out- or is there a fuse possibly that blows at a power surge?


hello kath... if the tv won't come on now the power surge fried internal fuse and possibly more. The least expensive way to get this repair is to physically take the tv to the repair shop. If they have to make house calls, the cost goes up significantly. Joe

Apr 21, 2011 | RCA HD52W59 HDTV Projection Television

2 Answers

No power standby light


If it is the main fuse that is being smoked, there are a number of possibilities:

1) Since this is a CRT based set, the most common failure os of the horizontal output transistor. This goes shorted which causes too much current draw on the power supply and it pops hte fuse.

2) The switch mode power supply transistor has shorted.

3) Failure of the primary side capacitor.

Without seeing the set and taking some internal measurements, I can not state for sure the exact problem with your set. Since there are potentially dangerous high voltages present inside even when unplugged, I would suggest that you get a detailed repair estimate from a local service shop and post the results here. We may be able to walk you through the actual repair.

Dan

Feb 12, 2010 | Samsung HCN436W 43" Rear Projection...

1 Answer

Hitachi 43UWX10B TV went off constant clicking from blinking red light (on/off light) did smell burning TV will not go on The TV goes off, then sounds like it surges itself and tries to come back on. Red...


it could be an internal corruption problem, but I doubt it. This problem is usually a serious power failure and generally very expensive. Sorry to say.

ONE: First, reset the tv by unplugging the power cord and let it remain unplugged for at least 4 hours. When you plug it back in the internal codes will come up as factory default settings. It may reset the power control section, but I doubt it; maybe 10% chance.

TWO: Look for a fuse on the back side of the set. It would be a black round knob with a fuse inside when you unscrew the cap. The fuse is usually about 1.5 inches long and 1/4 inch in diameter with metal on both ends and glass tube in the middle. Replace it with the exact same rating. It will probably blow again when you put in the new fuse (90% probably) and you will have to find out what is causing the failure.

THREE: If nothing seems to make any improvements, you will need to have a trained tech come to your home for a house call. If you can find someone who has experience with your model or similar chassis from the same manufacturer you will be better off.

IS THE SET WORTH FIXING: Yes, generally speaking, big projection sets are built to last 10 to 20 years. If you like the set and it has been a good product for you it would be worth fixing. The cost of repair will likely be in excess of $200 plus the house call. But that may not be a bad investment to keep it running for another few years.

But, in the long run it is a decision you will have to make.

Technically speaking, the cause of power interrupt failures are caused by heavy power drawing circiuts such as the projection tubes, power supply and high voltage sections. The projection tubes are very, very expensive to replace, but the others are not so bad.

Hope this helps you get started on the right solution.

Thanks for sending in your question and let me know if you will need further commentary.

Mar 29, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

My sd-533hd5 keeps blowing the 5 amp 125v fuses


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

Dec 12, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

2 Answers

I have a 3 year old Panasonic CT-32HXC14J TV. It has been working fine until today. When I tried to turn it on the internal (6.3amp/125v fuse) blew. I went to get a new one and could only find a 4 pack...


Hello sjday62

It sounds as if you have a component that has changed value enough in value to cause a high current draw, but has not completely shorted out. this phrase from you "so I did a stupid thing and bypassed the internal fuse and it turned on and worked" Not as stupid as you would think because it confirms what I said above, the 6.3 amp fuse tells me that the current draw normally is about 3 amperes since the normal rule of thumb is to double the value of the current to select the type of fuse. a five amp fuse should as well as a 4 amp fuse (it's best and recommended to use the exact fuse type). Now back to your issue. I would suspect that a transformer in the power chain has developed a shorted winding, or a capacitor begun to develop a short or excessive absorption.

I would suggest that you have the set looked at by a qualified TV technician.

I hope this helps,

Thank you,

Shuttle83

May 01, 2008 | Draper Cineperm 132" 1.85:1 Projector...

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.

Mar 10, 2008 | Projection Televisions

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