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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 months old.

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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.

Posted on Mar 25, 2009

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What is the first thing to check after a power surge caused by a close by lightning strike?


See if everything works. Stereos & TV's are usually the first to go. Items with digital devices go next analogs after that & grounded devices last. A whole house surge suppressor costs about 50 bucks and is just a few wires to connect & at the very least wall adapter surge suppressors should be connected to everything.

Aug 03, 2015 | Refrigerators

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Blown 24v Slow Blow Fuse


Scott, I have the exact same problem. What ended up fixing this? Thanks! - Paul

May 10, 2013 | Honeywell Triangle Tube Prestige Solo 110...

1 Answer

Our electricity went out for a few minutes, and since then the TV will not turn on. The green light is flashing. We tried resetting it by pushing a pen point into the reset hole, but it does nothing. ...


Your power outage may have been caused by a nearby lightning strike, or any number of
1000 different reasons that cause power surges, brown-outs, voltage spikes, inductive loading,
and/or utility pole breaker trips and resets (this accounts for your power loss (a pole breaker trip),
followed by restoration of power (the pole breaker automatically reset) - even plain old high electrical demand causing an overload due to air conditioning demands caused by hot weather.
When the pole breaker reset, your TV caught a power surge.
Whenever a power outage occurs, quickly power off (or better, unplug) any/all computers, TVs,
etc. that are not protected by surge-protection.
As an electrician, when someone loses an item of electronics concommitant to an electrical
anomaly, its almost
always traceable to a nearby lightning strike (or the power company provided equivalent), accompanied by inadequate surge protection for
the VCR/TV/Computer/Stereo/uninsured valuable electronic item/XBOX 360/Nintendo Wii.
Surge protection can
be provided by the consumer at the power strip (a good one with builtin MOV protection and a
warranty costs $20, whereas a zero-protection 4-outlet or 6-outlet power strip will cost $4-$5).
Your electrician can provide whole-house surge protection where a whole-house MOV-based (metal oxide varistor) surge protector, or per-circuit protection can be installed with
a GFCI breaker (or better, an AFCI breaker) can be installed.
GFCI = ground fault circuit interruptor
AFCI = Arc fault circuit interruptor
Lightning protection is especially important in Florida, which is the "lightning capital of the world."
I've never found a good solution to lightning-fried electronics (random power supply components are destroyed and/or fuse blown), other than renters insurance or homeowners insurance.

Your only real hope for an economical fix is to look for a blown fuse, and replace it.

If desperate to attempt a fix on your own, you could try replacing the entire TV power supply as a module, but even this provides
no guarantee of a fix - lightning damage can extend beyond the power supply.
When traveling, I will always unplug everything before I leave (except the security system),
and also turn off the breakers to unneeded house circuits (which kills the wall switches that
control interior lighting - forcing a burglar to use their flashlight instead of interior lighting)
which is the least convenient lightning protection, but highly effective, and cheap (free).

Sep 05, 2011 | Mitsubishi WS-55511 55" Rear Projection...

2 Answers

Bad storm, lightening strike outside then TV went off and will not come back on.


I would start with your power supply. If you took a surge it is possible that you only blew a fuse. If it is a blown fuse, make sure you only use the same type fuse.

Apr 12, 2011 | Westinghouse SK-32H240S Television

1 Answer

This morning I tried to turn my RCA TV (model 24R411T) on and nothing happened. I tried plugging it into a different outlet, still nothing. I tried leaving it unplugged about 10 minutes and trying again,...


Hello,

Power surges or nearby lightning strikes can destroy electronic equipment. However, most of the time, damage is minimal or at least easily repaired. With a direct hit, you may not recognize what is left of it!

Ideally, electronic equipment should be unplugged (both AC line and phone line!) during electrical storms if possible. Modern TVs, VCRs, microwave ovens, and even stereo equipment is particularly susceptible to lightning and surge damage because some parts of the circuitry are always alive and therefore have a connection to the AC line. Telephones, modems, and faxes are directly connected to the phone lines. Better designs include filtering and surge suppression components built in. With a near-miss, the only thing that may happen is for the internal fuse to blow or for the microcontroller to go bonkers and just require power cycling. There is no possible protection against a direct strike. However, devices with power switches that totally break the line connection are more robust since it takes much more voltage to jump the gap in the switch than to fry electronic parts. Monitors and TVs may also have their CRTs magnetized due to the electromagnetic fields associated with a lightning strike - similar but on a smaller scale to the EMP of a nuclear detonation.

Was the TV operating or on standby at the time? If it was switched off using an actual power switch (not a logic pushbutton or the remote control), then either a component in front of the switch has blown, the surge was enough to jump the gap between the switch contacts, or it was just a coincidence (yeh, right).

If the TV was operating or on standby or has no actual power switch, then a number of parts could be fried.

TVs usually have their own internal surge protection devices like MOVs (Metal Oxide Varistors) after the fuse. So it is possible that all that is wrong is that the line fuse has blown. Remove the cover (unplug it first!) and start at the line cord. If you find a blown fuse, remove it and measure across the in-board side of fuse holder and the other (should be the neutral) side of the line. The ohmmeter reading should be fairly high - well certainly not less than 100 ohms - in at least one direction. You may need to unplug the degaussing coil to get a reasonable reading as its resistance may be 25 or 30 ohms. If the reading is really low, there are other problems. If the resistance checks out, replace the fuse and try powering the TV. There will be 3 possibilities:

It will work fine, problem solved.

It will immediately blow the fuse. This means there is at least one component shorted - possibilities include an MOV, line rectifiers, main filter cap, regulator transistor, horizontal output transistor, etc. You will need to check with your ohmmeter for shorted semiconductors. Remove any that are suspect and see of the fuse now survives (use the series light bulb to cut your losses - see the section.

It will not work properly or appear dead. This could mean there are open fusable resistors other defective parts in the power supply or elsewhere. In this case further testing will be required and at some point you may need the schematic.

Jun 14, 2010 | RCA 27R411T 27" TV

1 Answer

Our power went out and ever since then, the television won't work. It was on a surge protector, but the tv repair man that I consulted said those are over-rated. Please help!!


Many devices marketed as surge suppressors are actually 'temporary power taps'.

The rear of the surge protector unit should show the UL-rating of the device. If it's listed as a UL-TVSS, that's a surge suppressor. If it says 'Temporary power tap' then the only surge suppression may be a resettable circuit breaker, through which lightning could pass unchecked.

Most likely the TV power supply has failed, and the cost/complexity of the replacement all depends on the local repair shop. Modern LCD-TV power supplies are typically a $200 part, plus a similar cost for labor. If it simply blew an internal fuse, an honest shop would fix it for under $100, I would guess.

With respect to surge suppressors, the leader in this field is APC (amercian power conversion) and several other good brands are TrippLite and Panamax. These devices are not dirt cheap, but you get what you pay for.

Oct 21, 2009 | Televison & Video

1 Answer

We had a near lightning strike and now my tv (sanyo model ht27744)doesn't want to come on.


Lightening may have caused a surge on your power lines to the house and to the outlet the TV was on.
Do other things work on that outlet? If not you tripped a power breaker.If they do work check this.
Unplug the TV for 2 min or more and plug back in.
Try bypassing your surge protector you had it plugged into. It could have died when the lightening struck.
(no surge protector?) Bet you'll buy one for your next TV.
Look for 3000 joules and up rating for a surge protector and insure it has protection for a cable/antenna input too.
If this doesn't work the TV may be fried or internal fuse blown.
Time to take it to a repair shop or depending on it's age (5 years+) it may be time to buy a new TV and surge protector.
Near Lightening strikes can effect appliances from several inputs that could be affected from outside like Power, Cable, Antennas, Phone Lines that come into your house.

Jul 06, 2009 | Sanyo Televison & Video

1 Answer

Lightning struck the cable tv line coming into the house. All of the electronics connected to the cable quit working. I took the back off of one of the tvs, and could not find any sign of scotch, burn,...


A lot of electronic devices have built-in on-board surge suppressors such as MOV's, and avalanche diodes - these could get damaged during a lightning strike. Fuses are another possibility. Beyond that, gotta take out your DMM and oscilloscope and start troubleshooting, or see a technician.

Aug 26, 2008 | Televison & Video

1 Answer

Sanyo 25" TV struck by lightning - where do I begin?


Not to different from arcade, If the fuse is blowing right away check the bridge rectifiers next for shorts and anything on the primary ac to dc side first, Caps,may have a surge suppressor on the ac side. If it was lightning sure you will find it in this area. Secondary supply shorts usualy do not blow fuses, Just cause the supply to shutdown.

Jul 10, 2008 | Sanyo DS32224 TV

2 Answers

Will not turn on


The power surges and lighting damages are ussually extensive,alot of times more than one component and more than one circuit gets damage,home owner insurance cover this damages but the insurance company does not repair the damaged unit they replace them because is not worth repairing.To troubleshoot you will need the squematic diagram to locate and correct the different circuits that might be involved ,be careful there are voltages that can hurt you if you are not too familiar and touch one by accident.

Nov 04, 2006 | Toshiba 32AF45 32" TV

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