Question about Akai PT5598HD 55" Rear Projection HDTV-Ready Television

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Keeps blowing fuse

This tv was damaged by a power surge from a downed power line. I have replaced the 6.3 amp fuse located near the power cord twice. Any ideas...Where can I find another board?

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CHANGED THE BRIDGE RECTIFIER

Posted on May 11, 2009

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You will probably be replacing boards left and right with a surge. I would make a claim with the insurance company, it's covered under most home owner's insurance.

Posted on Jan 12, 2009

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Tv dead during lightning


Could be minor or maybe done for but here goes. Some flat panel TVs have the main power cord with one of those small transformers built into the plug end that converts 120volt ac to DC power. Output voltage should be listed on the transformer tag. You need to find someone with a voltage tester and see if the TV plug end is showing DC voltage. If not the complete power cord needs replaced. If that checks out-- the next thing is to remove the complete TV back cover and look for fuses right near the power plugs into the TV. The fuses should blow out first from a lighting surge. The problem is how much of a surge you got. It may have damaged the power supply board in the TV which may need replaced. Hope this helps

Jul 12, 2015 | Televison & Video

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Fuse keeps blowing (LCD,Projection,Standard,Flat panel TV.)


A blown fuse is very common on Electronics Appliances like TV's, DVD's, Receiver's etc. Sometimes fuse blew because of power surge, replacing alone with exact volt/ampere cure the problem. It is necessary to understand that blowing of fuse second time around you replaced it means that you have a shorts in the circuit.

jdvillanueva_4.jpg

Troubleshooting the shorted parts on the power supply section needs an experienced in electronics because you will isolate the shorted parts one-by-one. Since we are working on the power supply section (110v/220v AC) this is fatal and can cause you an electric shocked with a simple mistakes only.

Usually shorts are quite near to the AC power line where you can locate this components :

1. Power Cord - Even a very low of chances for short but still to be checked because this is a part of AC line input. This is due to frequent bending and pulling, internal wire will shorts.

2. VDR (Voltage Dependent Resistor) this serves as a guard for voltage fluctuation or excessive voltage to avoid further damaged to other parts. If there was an over voltage(reach the peak allowable voltage designed by the manufacturer) from the AC line, this parts will vary its resistanceand drive the line to excessive current which causes the fuse from blowing.
http://en.wikipedia.org/wiki/Varistor

3. Posistor (for standard TV) - connected here the degaussing coil.Check it also for shorts.

jdvillanueva_5.jpg

4. Rectifier Diode - Some unit this is come in bridge type package.
jdvillanueva_8.jpgjdvillanueva_10.jpgjdvillanueva_11.jpg
This is very common parts that are prone for shorts. For more info click this link
http://www.fixya.com/support/r8519792-shorted_rectifier_diode_fuse_keeps

5. Main filter electrolytic capacitor.

jdvillanueva_13.jpg

6. Voltage Regulator IC/Transistor.
7. H-out Transistor (for standard TV)
8. Flyback Transformer- (for standard TV)

Isolation technique is done to locate the shorted parts. Pull-out the suspected parts one-by-one in the board and test it using the ohmmeter.

Hope that it may help you find the solution on your problem.

Have a nice day!
Thanks for using fixya


JDVillanueva

on Jan 30, 2011 | Televison & Video

1 Answer

Will not turn on, no blinking lights, power coming from cord is good


Sounds like the power supply board is dead. Probably has a blown power line fuse on the board. A power surge will sometimes blow the fuse and protect the board from damage. Replacing the fuse will restore the TV if this is the case. Most times though, the supply has a blown part that causes the fuse to blow and your only option then is to replace the board.

Mar 23, 2014 | Panasonic Tc-42px24 42 in. Plasma TV

2 Answers

I got Nuttin'


The point of the fuse is that it blows before a surge can damage anything past it. If there's a component that could be damaged with a 3 amp surge for example, the 2.5 amp fuse would blow before the surge gets there but the 3.15 would let it through, and damage would be done.

Jan 26, 2014 | Peavey PVi 4B 4 Channel 100-Watt Powered...

1 Answer

How many amps is the fuse that is located on the back of the TV near the power cord. It says T5AL/125 or 250 v. f800


Something else is going on to cause the fuse to keep blowing. Sounds like you have an issue on your power supply in the unit. Also check the outlet that your plugging it in to. Good luck!

Jun 28, 2012 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

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 Televison & Video

3 Answers

I am wondering if there is an in-line fuse that may blow if there is a power surge? When tv is plugged in the red light is not on, and will not turn on..


Viewsonic 32" TV has an inline fuse. It is soldered to the power board. It is a small black cylinder. You can order a replacement fuse from aliexpress. Cost is about $1.40, but I had to purchase 10 for total cost of $14

Oct 07, 2011 | ViewSonic N3252w 32 in. LCD Television

1 Answer

I had a power outage and now the tv will not power on. This is for a 55" Mitsubishi WS-55511. no green blinking lights.


Hi,

You may have a blown fuse. Unplug the TV and remove the back. Look for a small fuse near where the power cord goes in.
If it is blown that may be the problem.
Use a magnifying glass to read the AMP rating.
replace the fuse and plug it in. If the fuse blows again you need expert repair services.

If the fuse doesn't blow then try to turn it on.
If it turns on then check the operation of the TV.

If the fuse blows again or the TV won't work correctly then you need expert repair service to fix your TV.

You may be able to have your household insurance pay if it is damaged by lightening or a power surge.

Lee

May 02, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Have a Toshiba MW24F11 combo tv. Near lightning strike through surge suppressor. Will not turn on. 6.3 amp fuse blown; replace, blew again. Next step, or start looking for replacement. Set is 25...


power surges generally damage diodes and capacitors causing the fuse to blow, any reputable tv shop can repair for a fraction of replacing this set.

Sep 15, 2008 | Televison & Video

4 Answers

T.v won't turn on at all


The 6.3 Amp 125V fuse always blows on this TV after a while. replace with a 6.3Amp 250V fuse and it should do the trick unless something else is wrong. a 6.3 amp 125V is almost impossible to find so chances are if you find a 6.3 it will work. Tried a 6 Amp 125v at first and it blows after the first time you turn it on and off and then back on again. 250V seems to work well. Hope this works for anyone else with this TV. Beats having to move it to the trash because it is HEAVY.

Feb 12, 2007 | Panasonic CT-32HXC43 32" TV

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