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Power supply no output posible lightning - Akai Projection Televisions

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  • Akai Master
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I will need to know thw model number of your set in order to assist you.

Posted on May 26, 2008

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After a lightning stike, the TV will not turn on at all. No lights. Is it the power supply? Is it worth fixing?


is 30% chances that only the power suply is broke, and after a lightning ...is beter to go to a profesional repair shop and check it there.

if the power suply is external before u go to a serice u can try whit a power suply that got same V and A

best regards.
P.S.

i dont wana upsad u but prepare for worst

Sep 22, 2011 | Sony KP-57HW40 57" Rear Projection...

1 Answer

I need a power supply for a Mitsubishi Medallion WS-55819


did you try contacting the Mitsubishi service center for the part?

Oct 22, 2008 | Mitsubishi WS-55819 55" Rear Projection...

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...

1 Answer

My home was struck by lightning and my tv recieved a power surge. Now it powers on, but no picture or sound.


Hi, I do hear often about this problem, check the power supply its possible it was damged during the lightinin.

Apr 18, 2011 | JVC AV-48WP30 48" Rear Projection...

2 Answers

I have a 58'' HP Pavillion Projection screen TV. It was struck by lightning. the power cord is good. It will not turn on at all, no fans running, etc. What do you think I will have to fix?


As u have just said that it was struck by lightning the only way to get the TV back working is to replace burnt items on the moterboard .becouse lightning must have demaged some components on the power supply, if possible i would preffer a new power supply board

Aug 31, 2009 | Projection Televisions

1 Answer

Sony Trinitron Hit by Lightning


hello if you give me the model number of the tv i'll try and get you some info thanks

shaun

Aug 04, 2009 | Sony Projection Televisions

2 Answers

Tv after power surge


There isn't really an absolute answer to your question. The power supply affords some protection to the rest of the set when the components designed to prevent short-term power spikes activate but their primary purpose is the protection of the supply. There is surely a fuse on the line-side of the supply, then there are two more devices normally included (they cost little) that will force the fuse to blow if a certain line voltage peak is encountered, a type of resistor that is actually a semiconductor that has little effect until its design is exceeded; it then looks electrically more like a  dead short, causing the fuse to blow. The other device doesn't do much after the first few cycles of AC and is there to reduce 'inrush' current. Well-designed supplies will have fuses on the output side of the supply that protect specific voltages and circuits.
Could the low-level circuits have been affected?  Yes, but in some cases, only a working supply and time would show up some kinds of failures.
In addition, I always include the suggestion pasted below:
If you live in an area of frequent lightning strikes, investing in a 'whole house' surge arrester makes sense.
These are installed in the main breaker box and any brand I've seen comes with a $10-25,000 insurance policy to replace any dead appliances that fail despite the surge protector.
They cost $150-250 US plus installation which you can save if you are afraid to DIY.         

May 17, 2009 | Toshiba 65H81 65" Rear Projection...

1 Answer

Surge from lightning strike damaged tv and won't turn on.


Unless you are skilled at trouble shooting power supplies , you will be better off getting a skilled repair center to repair yourset. If its repairable I have seen surges from lightning strikes make the set no longer cost effective to repair.

Jun 18, 2008 | Projection Televisions

2 Answers

Mitxubishi WS-48311


yes !! probably need to replace some parts in the POWER SUPPLY area, starting with the main fuse , or the whole POWER SUPPLY unit may need to be replace . hope this helps

Apr 26, 2008 | Mitsubishi WS-48311 48" Rear Projection...

1 Answer

No audio, no video


Can you find out what Led is not on or which comes up and goes out? Most of these sets have convergence problems. Or Power Regulators.

Sep 23, 2007 | Hitachi 61SDX01B 61" Rear Projection...

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