Question about NEC PlasmaSync 61MP1 61 in. Television

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61MP1 turns off after 5-10 minutes

When powered on, the monitor will display a picture for anywhere between 5-10 minutes before shutting off. After powering it off and unplugging it for 20 minutes the unit will work fine again. Emailed NEC and they said that it's possibly an overheating issue. Has anyone had similar issues?

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  • Ryan Oct 03, 2008

    I was able to fix this issue after replacing some capacitors on one of the display boards. Found out that the board had been previously repaired and actually repaired with the WRONG parts. after putting the correct parts back on the tv, it has been working fine for a while now.

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Ryan

I have a 61MP1 that wont turn on. I get the green flashing light to signal power but nothing happens with the plasma. You seem to know a fair bit. A guy in UK said he'd supply a new power board for $500 but wants my old one in return. Sounds like it might be something I can fix here. Any suggestions. Barry

Posted on Jun 09, 2010

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Posted on Jan 02, 2017

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61mp1 nec plasma keeps shutting down after 5 minutes, when switch on picture ok


Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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Here is the link for the user manual if you need it; http://www.necdisplay.com/Documents/UserManuals/PX-61XM1A_MAN_2ed.pdf Check page 54 of the manual (61 of the pdf) right at the bottom. The lights you have indicate that either the power supply citcuit, the screen, or one or more fans have been damaged. If you are sure all the fans work, then the power supply is the only repairable posssibility. replacing the screen is not worth it. The fact that the fuse blew but doesn't blow again makes me suspect one of the transformers or capacitors in the power supply has blown, causing the short that blew the fuse, but also then melted the short so it no longer blows the fuse. If you have a multimeter, and ideally an ESR meter, with a good photo of the power supply unit we can hopefully talk you through what to check - otherwise get a repair shop to look at the power supply. Hope this helps :)

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