Question about Philips Magnavox 27MS343S 27" TV

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My philips televison doesnt turn on Previously I would just unplug it and plug it back on and would turn on I believe that its the on/off switch that isnt working properly. The TV works it just cant be turned on and off

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Try this before you toss it...recently my magnavox 37" had been takign upwards to an hour to turn on. this past tuesday i check these threads to determine the problem. like many have said, its probably the capacitor, which it was n my case. basically i took everything apart and the bad (2) capacitors were obvious. one was oozing the electrolytic fluid and the top of the other started to 'dome' on the cap. i then went to a local electronics store (not radio shack, parts are too specific)... $3 for the (2) capacitors and a $20 solder iron. then you just de-solder the bad caps' and replace. i took the approach that - "what's the worse that could happen, the tv already didnt work?" well i just completed teh fix, it took about 3 hours and saved me nearly $300 that i didn't have. you can't be without your flatscreen at the beginning of football season!!!

gook luck

Posted on Sep 09, 2009

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Okay i have the Magnovox 42" plasma, bought in new in 2007, manufacture Jan. 2007. Tv has been working fine, then earlier it went off, i waited a few minutes then turned it back on, worked for a few hours, then off again. i disconnect the power cord and plug back in after about 5 min, as i plug it in.. you see and hear the power turn tv on (as usual) then off again in a matter of seconds.But when you try to turn it back on (remote or manually) it will not come back on! i waited 4hrs for everything to cool down also, but that didn't work either. any suggestions?

Posted on Jun 27, 2011

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This is a common sign of a main power supply that is getting tired. Our sets aren't really 'off' unless unplugged, otherwise they could not respond to the remote. This means some portion of the power supply is always 'hot.' Unplugging it allows all of the set to cool internally and temporarily causes the failing components (mostly electrolytic capacitors) to recover some of their lost value and perform as they should.
I think your problem is going to get progressively worse until even unplugging it won't restore those weakened components.
Once it reaches that point, I would suggest you find a surviving TV repair guy to ferret out the tired parts and get it back running again. Even if you decide to buy a sexy new flat screen/panel LCD/plasma, etc., don't discard your Philips since the new sets are not living as long as your current one. That way you'll have a backup (assuming you have a converter) when the new set dies 2 weeks after the warranty expires.

Posted on Sep 06, 2009

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My philips televison doesnt turn on Previously I would just unplug it and plug it back on and would turn on I believe that its the on/off switch that isnt working properly. The TV works it just cant be...


You should at least try turning it on/off using a remote if you can't turn it on/off on the TV keyboard. Pulling the the plug on it and turning it on by plugging into the wall isn't a good thing to do, you will eventually burn something out in your power supply or elsewhere due to the harsh transient currents you are subjecting your electronic components to. Your power supply may have a relay in it that delays activationg some components until others are energized and you are bypassing all that with your method.

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