Question about Philips Magnavox 27MS343S 27" TV

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Wont say On

I have 19 Magnavox PS1944c127 It will not stay on. Hit on button and powers up for about 2 seconds then shuts it self off. Same using the remote and with remote out of the room

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This TV needs to be taken to a service center, its problem is internal and needs a qualified technician service center to make the simple repair.

Posted on May 15, 2008

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MY R.C.A. MODEL 20F420T WILL NOT STAY ON. TURN IT ON IT MAY STAY ON 3 SECONDS TURNS IT SELF OFF TRY AGAIN IT MAY STAY ON 2 SECONDS BACK OFF THANK YOU ????


The first couple of seconds of operation, most TVs are doing some self-test and if something has failed making full power on dangerous (for fire) they will shut down. Either a major component in the horizontal section has failed or the main power supply itself is defective.

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I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Jun 04, 2009 | Philips Magnavox 27MS343S 27" TV

1 Answer

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You have problems with a condenser that allow the power supply to maintan an acceptable level of voltage in order to keep the TV on. take to a tech to be fixed. unfortunatelly, this problem needs a tech to take measures in the circuitry to find the component that causes the problem.

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MAGNAVOX mODEL 27ms3404/17 shuts down after after a few seconds. Mine does the same thing! My TV tube turns black after sew seconds. The green light stays on saying that the power is on. If you change...


first place to start on this chasss is with a known failure in the horizontal circuit. there is a capacitor 2455 and 2 transistors locations 7461 and 7463 that have caused a wide variety of failures. i would recommend replacing these components before proceeding as they could be the whole of the problem.

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1 Answer

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aparece codigos en la pantalla MSD luego 55 sy

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2 Answers

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Press the up and down volume buttons on the TV at the same time. This will turn off demo mode.

Aug 29, 2007 | Philips Magnavox 27MS343S 27" TV

2 Answers

My TV keeps shutting off


Tvtek is on the right track. The remote will not solve the problem. Sounds like a voltage regulator in HV circuit if it only lasts a few seconds. If it stays on for a couple of minutes, beam limiter cicuit is pushing to overload and shutting unit down. Magnavox set not hard to repair, but a 27" set is not cost effective to repair either.

Jun 06, 2007 | Philips Magnavox 27MS343S 27" TV

1 Answer

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Same problem. The power button does not work. The volume and channel buttons turn the tv on. the tv then shuts its self off 15 seconds later. the red light blinks in second intervals while this happens.

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Try pressing the vol up and vol down buttons on the tv at the same time(not on the remote)

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My tv is a Toshiba. It comes on for a second and then goes off by itself. I use the remote and the power button on tv and the same thing happens. Is there a solution to this?

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