Question about Philips Magnavox 27MS343S 27" TV

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Blown up tv (philips)

I work for a small electrical company that had a job with a department store. One of the electricians was in a hurry and did not label his hot and neutral wires for a large area in the electronics section of the store. Someone else connected the wires to the panel which was three phase. Long story short the hot AND the neutral wire feeding the receptacles for a row of LCD TVs ended up both being hot thus sending 208 volts to them. They all blew up. Our company fired the electrician and bought the TVs. They have been sitting in our storage for almost a year. My question to you is- can they be fixed. I wondered if maybe there is a fusable link inside the TVs designed for power surges that took the damage and can be replaced. Are these TVs fit for the garbage can or is there an easy way to fix them? Thank you for your time. Ethan.

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Yes,they can be fix.The problems u discribing to me,like just a big power surge to all the tvs at once.Now just take one by one test it out what wrong with it each one individual tv and fix it that all.Like changing individual componnets or boards parts that all.

Posted on May 04, 2010

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There are fuses always inside TVs. The main filters (capacitors) are probably damaged and the regulators are probably blown. Chances are the rest of the set is OK. Sudden bursts like that usually kill the fuses very fast and the regulator takes the brunt of the load. With a multimeter, you could probably check regulators for shorts and replace fuses.

Posted on May 04, 2010

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If you're NOT still under warrantee you should at least open the TV and look for a blown fuse near where the power cable enters the set. A lot of times you can buy replacement fuses at a local electronic or hardware store and they're easy to replace.
Check the fuse. If it is blown, it will be obvious and make sure that the set is unplugged before replacing it. If it blows again, or if it is not blown, your problem is probably in the 'X' volt regulator and you will need professional help with the repairs.

You can also check the board where the components are mounted and resoled any that look bad. Brief power outages may cause the TV to turn off on its own. If you are using a surge protector, try connecting the set directly to the wall outlet.

In your case it could caused by a blown fuse, a leaky diodes or a bad solder joint at the horizontal drive transformer.
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Becoming an Apprentice Electrician, and/or moving on to a Journeyman, then Master Electrician, involves either going to a Vocational Technical, (VoTech), school, or learning on the job.

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open the small hatch next to where the power cord enters the back of your t.v. using a phillips screwd you driver. There is a small fuse there that may be blown//careful not to touch anything and remember that even if the unit is unplugged their are circuits inside that will still store a high voltage charge.

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