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I have a Vizio M650VSE. The TV will not turn on. I replaced the power supply but same issue. Any ideas. I believe it was caused by a storm.

Posted by grutledgem35 on

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Anonymous

SOURCE: Vizio P42HDTV Power on Diagnosis

Please check the U29 8 pin little surface mount mosfet it has this letters > FDS4935 > > In this part inputs 13.2 volts which is ok for the near 12 vdc but it > outputs 1.250 vdc i am 100% sure that this is all the problem > > check it out, and tell me if you´re agree with me > > On this output pin it feeds the audio Ic, the 7809 and the tuner side board > which needs de 12vdc too and its getting only the 5vdc part > > what do ya think?? > > Richard

Posted on Apr 13, 2008

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Anonymous

  • 87 Answers

SOURCE: polaroid 2700 hdtv power supply

The only place I have been able to find the power supply or main board for this is shopjimmy.com or Ebay but even there I can find none.Tell your husband to check for puffy capacitors in the power supply.This is a very common problem with these power supplys.

Posted on Jan 15, 2009

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Anonymous

  • 13 Answers

SOURCE: My Vizio VX32L LCD TV will power on but no picture or sound

I had the same problem after having a Vizio for 2 and a half years. I left the room for a minute, i came back and the screen went black. There was still power to the unit and you could see that the back light was working, just no picture, no sound, and you couldn't use any of the buttons. The only way to turn it off was to unplug it. It would then start up, with the Vizio logo going from orange to white, and then do the same thing all over, no pic or sound.

HOW I FIXED MINE: I ordered a new "main PCB" from tigerdirectparts.com (you can also use searspartsdirect.com). This is the circuit board with all of the inputs on it (hdmi, cable, etc.) I opened it up, disconnected the old one, put in a new one and now it works fine. I used both serial numbers on the board to search for it online. It cost me $144 to do it, but that's better than $450 for a new TV. My tv is the vx32l hdtv10a. I hope that helps.

For me the part number was either (depending on the vendor) : 0171 2272 2174 or it was 3632 0212 0150. Check your circuit and see if any of those numbers match up.

Posted on Jan 22, 2010

Chi Chu

  • 8457 Answers

SOURCE: My vizio plasma tv quit, Problem with the

Check ur power source with other devices?Yes.Than,the power supply board it dead.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a refurbish power supply board for the replacement.

Posted on Oct 23, 2010

Anonymous

  • 2 Answers

SOURCE: My VP504fhdtv10a vizio plasma TV when connect

Logic Control D Board got nothing to do with this problem. This is your main power supply gone bad(usually not the sub power supply). I just repaired my VIZIO by replacing main power supply. Just remove back cover and your board will be right in the middle of the screen. Just get board part/serial # and google it. My best price was through eBay(around $100). Everything is fine now.

Posted on Feb 07, 2011

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I have a Vizio p502ui-b1e that I believe was hit by lightning during a storm. The light at the bottom right comes on then flashes but there is no backlight and no picture. I'm not sure if my issues are the...


This is unfortunately a not uncommon problem that others have told me about and Vizio only advised them to buy another television.

Struck by lightning is highly unlikely.

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You need to find out which board the led driver resides on. The main board sends a signal to the power supply board to turn on the LED's Look on the power supply board for swollen capacitors. They all have to have flat tops. If any are bulged, they have to be replaced www.shopjimmy.com. TV Parts Universal TV Stands DLP Chips ShopJimmy These guys can tell you which board you need.

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Vizio m650vse: powers then it turns and shows the vizio logo then it shuts off.


From what I've seen on a lot of these TVs you have a bad capacitor on the power board. If you you are confident and have the skill and tools, you should be able to fix it yourself. Remove the rear panel and near where the power cord comes into the unit, you should see a grade b/c board. Usually tan or brown in color. Sometime you can see the capacitor has swollen or leaked and that makes it easier to know which one it is. Other times you will need a meter that can measure capacitance to figure out which one is bad. E Bay can be your friend when trying to locate replacement power boards if all you want to do is a swap on them.

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Why won't it turn on?


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. Surf the site with patience. 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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The downside of a product getting a power surge is it will never be just right. It is not worth the cost to repair it. Consider buying a new TV instead. Suggest a Smart TV.

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If your power indicator isn't lighting up, you don't have your 5vdc standby power. You're most likely looking at a power supply issue. Did this happen after a T-storm???

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Vizio E371VL doesn't turn on


Hello,
The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.
The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.
All these can be checked on the power supply board.
But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.
The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)
You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.
What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).
You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.
Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.
If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.
I hope this helps.
Regards.

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1 Answer

Vizio plasma tv will not turn on by button or remote, cable box is lit. We had a loss of power last night due to a storm. What do we do to check it.


hi usually the cause of won't power on problem due to the storm is the current fluctuation which the tendency is power supply failure. now since totally dead set what you need is to open the tv unit then look for the power supply where the power cord is connected. check obvious defective component part like blown fuse and burnt part like resistor and capacitor. just replaced with the same value and ratings to avoid damage from others component.if their is no problem with the power supply the output voltages are good the main board get damaged. good luck thanks for consulting the fixya.

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