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Magnavox 32 ME 303v/fa turned off on its own and won't turn back on. Capacitors?

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Posted on Jan 02, 2017

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SOURCE: Magnavox tv won't turn on or off

Hello,

The typical cause of power up problems in a failure of the power supply filter capacitors. The board can be repaired by replacing the bad components. Below is a picture of the power supply board with the bad capacitors circled and below that is a link to a it that is available with the correct parts to rebuild that board.


10_1_2012_3_58_30_pm.jpg

http://www.ccl-la.com/catalog/product_info.php?products_id=216


I hope this helps you out,
BuddyMc

Posted on Oct 01, 2012

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1 Answer

Magnavox turns on then goes off model 37f337b/37f437b


More than likely power board,usually repairable,look for blown capacitors.A blown capacitor will look like the top is rounded also suspect capacitors will show signs of the plastic coating shrinking .

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Magnavox 37" model 37mf231d-37 wont tun on when i hit power button the screen lights up for a secongd and turns right back to black and the power button green light comes on and right back off I found


Your power supply is weak. If you think you can repair this I will tell you how. If you cannot do this,find someone who works electronics and share this repair. Two capacitors are bad. When pulling the back cover off, you may see one or two capacitors bulged. Even if they look good....replace these capacitors. The locations are numbered and, the capacitor having a value and temperature of 105 degrees.. Location of the first capacitor is 2074, value 25volts @ 2200 mf @ 105 degrees and will most certainly be bulged. The next capacitor may look fine....replace it. That capacitor location is 2066, value is 35 volts @ 1200mf @ 105 degrees. When you replace these, please be sure to get the polarity (positive leg and negative leg) of these capacitors seated correctly...this is a must. This will correct your TV. You will save lots of money, because you asked. Thanks for listening ..good luck...we will be here for your next repair.

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if just an stand by indicator at the front panel check for bulging capacitors at the power supply board.

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1 Answer

Magnavox tv won't turn on or off


Hello,

The typical cause of power up problems in a failure of the power supply filter capacitors. The board can be repaired by replacing the bad components. Below is a picture of the power supply board with the bad capacitors circled and below that is a link to a it that is available with the correct parts to rebuild that board.


10_1_2012_3_58_30_pm.jpg

http://www.ccl-la.com/catalog/product_info.php?products_id=216


I hope this helps you out,
BuddyMc

Sep 25, 2012 | Toymax Magnavox 37MF331D 37 in. LCD TV

1 Answer

Magnavox 47MF437B/37 works fine until turned off. The red standby light comes on but the TV will not turn back on again. I have unpluggged the TV then plugged it back in again. Sometimes the the TV will...


Hello,

power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Hope it work with the solution

Jun 12, 2011 | Toymax Magnavox 47MF437B 47 in. LCD TV

1 Answer

Magnavox television turn off and on by itself


check the capacitors on the power pcb,the tops will be swelled,replace the swelled capacitors,this should correct the problem,if not replace the power pcb

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1 Answer

My magnavox 42in. 42MF521D-37 shut off and will not turn on


Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

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1 Answer

I have a 50' Plasma HDTV and when I turn it on


First thing to try is replace any swollen capacitors on the power board.

Nov 01, 2009 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

Magnavox 19" TV shuts itself off.....won't stay on


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

Magnavox 15inch lcd shuts itself off


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

Mar 15, 2009 | Philips Magnavox 15MF400T 15 in. LCD...

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