Question about LG M2794DP TV

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Product lg 2794dp the tv switches on for approx 2 seconds then goes off

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Could be power supply board needing new capacitors
lgs are known for this fault.....
you may be able to get another power board from ebay......
cheers

Posted on Apr 01, 2011

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Posted on Jan 02, 2017

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Maybe you could try the auto-set. Found this using google:
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inverter panel is faulty you can probably source another via ebay if your confident on fitting it could be expensive otherwise

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1 Answer

Will not switch on


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There's a problem with the video card of the lcd TV  needs replacement .
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Re44sz21rd


HI,

All I can suggest is to replace the bulb. I experienced a similar problem after about 2 years viewing when the recommend lamp life was approx 8000 hours (I got to approx 3000 hours). There is a service menu you can access where you can reset the lamp hours time. I have read that if this is reached you must replace your lamp, but you can extended this by reseting the hours.

I have since learnt that a lamp bulb can go at anytime, so it is worth having a spare. Also I have noticed that switching the TV off at the switch (not leaving it in standby helps).

Try this to access the service menu. Holding down the menu button on the remote and the one on the TV for a few seconds. I think the TV needs to be off.

From memory, I think it is option 4 and option 5, then reset the lamp hours to zero

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the only info I could find on this is one withthe same problem. Replacingthe monitor had no effect and the store exchange it.

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LCD Screen problem


You have a failed inverter circuit. This is a very common fault with BenQ and other LCD monitors. I have seen more FP737 and FP731's and all their cousins in the last 2 years then I care to count.

You will be best to take it to a TV technician and have them do the repair. There are ways to fix it yourself, but the chances of success are not great without a decent amount of electronic knowledge.

Call several places and get approx quotes based on the inverter fault. A lot of TV techs will not work on LCD monitors and is another good reason to call around first.

One final thing, check the manufacture date on the back of the monitor, these normally come with a 3 year warranty and it will be either expired now, or very close to it. If it is still under warranty, then contact BenQ near you to facilitate the repairs.

BenQ support webpage.

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