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We had a bad storm last night while we were asleep and now this morning the HDMI source on our Olevia 537H LCD tv doesn't work.

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Dear butifli21

This HDMI issue with regards to your television could be due to the tv resetting itself within the menu, and therefore you will have to re-enable your HDMI settings before the tv will make use of this facility or work with what ever is plugged into your TV's HDMI connection point.

Now the major thing with any electronic product, electrical thunder/ lightning storms, faults with the product and human beings in the same location at the same time, is the fact that the human being will presume that such major damage has occurred that the product is rendered useless, however the product could still be perfectly sound, apart from minor issues, but it is largely due to the awesome power of electrical storms that make humans fear it in terms of the damage that these storms do.

Now if you can answer yes to any of the following questions, then it is possible that your appliance/ vendored product has sustained serious damage from the storm.

Has your house/ location sustained a direct hit from lightning at the time your product malfunctioned?

was any power line/ aerial cable directly linked to your product hit by lightning?

was the electrical storm in the vicinity of a mains supply line/ power transformer which will supply electricity to your house and local area?

has a blackout been reported (no matter how small or large)?

have ANY telephones/ radio systems been affected? (also include cellphones, mobile hansets, land phones, satellite phones, HAM and CB radios)?

are you running your equipment from a power supply that is NOT SUPPLIED and protected by a SURGE PROTECTOR/ anti spikes.?

has a product of the same manufacturer/ vendor model been affected in the same way to yours after the incident?

The previous questions here are only as a base guide and will aim to assist in how to rectify this fault. Much in the same way as when a sick person goes to a doctor complaining of pains in the stomach, and saying they think they have a pulled muscle, when in reality, the questions are asked and the doctor states that it is merely just a slight upset tummy due to eating to much spicy food. This is how we will deal with your problm, and is why i have asked the questions about your storming situation.

Now, lets suppose this is sustained damage from lightning (direct hit), firstly, you are lucky your television is working still, so this makes repairing you model a little easier.

Secondly, if any component is damaged internally, we will be able to work out which ones, and how they are damaged. This means that yo will have to disassemble your TV. Once you can find the circuit board where your HDMI connectors are, then just look on that circuit board, and the circuit board that supplies power to this area. In this instance,, you will be looking for any cylinder shaped objects that have markings on them (uF, F, pF etc) and these are capacitors. If damaged, they will be blackened, will smell, and may even be split. These components are designed to discharge electricity on a set timescale and have a maximum voltage threshold which should not be exceeded, in addition to this, the polarity must NEVER be reversed on certain types of cap otherwise they can explode. Now as lightning is somewhere in the millons of volts, and carries huge amount of amperage, i would find it extremely unlikely that anything electronic would survive a direct hit from a strike, unless shielded. However the component i have given reference to here, and indeed, other components such as fuses, resistors and logic gates can be damaged by exessive amounts of current, load, or frequency.

Now i think the best course of action to take here, is firstly to acquire yourself a copy of the service/ overhaul and repair manual, now you can either do this by going to various websites and enquiring for the manuals there. I have given a few details of these to get you started. (needed for you to read the manuals as they are in PDF format) (type in your model details followed by repair manual

Now before going off to get the repair manual, its best to start with the easier tasks and the cheaper option. So i would start with checking those menu settings just in case they have been reset, next up, it would be to ask about, and enquire if anybody else has had the same or similar models go corrupt, and what they did about it. After this, i would probably open up the TV and have a look (and a sniff around........quite literally.......for burnt out parts and other faults), then find your repair guide, and then commence repairing the unit.


Firstly, you will need to isolate your TV from the mains electricity supply for at least 24hours as telly sets carry high amounts of voltage within them, and some can store electricity for long periods of time. In addition to this, if you are not sure about a component, or something within the set, just ask me, and i will help you. Now for obvious reasons, you should never work on a TV or high voltage equipment if you have heart problems, if you are physically ill (even a headache can effect your judgement), if you are drunk (now believe me, ive seen this happen) or if you have hyperelectrical sensitivity (sensitive to electrical, or static environments).

Lastly you will need to be pretty handy with a multimeter, soldering iron and tools, so going to a library, evn goign online or to a school/ university is always a good option, or yo can ask someone in the know.

One more site to check out is
type in the search bar the words THE ELECTRONICS CLUB..
here you will get a vault of information which IS useful to you if you want to repair this fault yourself. If not, then there is always the option of the good old fashioned electronics engineer who can fix it for you.

I really wish you all of the best of luck on this one, and hope that my information to you is the fixya for you. I also look forward to hearing from you soon, and you can fel free to ask me any question about this matter in full, and I WILL ANSWER it for you.

Until then, i give you my best regards and wish you the best of sucess once again.

Yours sincerely


Posted on May 11, 2008

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This is very common if you dont have a power surge protector on your cable line or wall outlet. the lightining travel through the line and most likely damaged the hdmi board.check first go to menu and check if settings are correct.

things to do:

1. unplug and plug back in 5 minutes might reset
2. see if you have warr or home insurance to cover repair local tv repair shop to come over and look at ask about estimate on phone.

Thanks doctor video

Posted on May 11, 2008

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