Question about Vizio Televison & Video
I am getting no power to my Vizio tv. The Vizio logo does not even light up. I have been checking the power source with a ohmmeter. When I check the fuses they hold a charge for a moment then drop to zero. A few diodes do this as well. is this normal? I would think that if the fuse was broken it wouldn't hold any charge even for a second. I'm at a loss because everything holds a charge including diodes, transistors and capacitors. I'm starting to think it may be a coil pack if the fuses and diodes holding a charge and then dropping to zero is considered normal.
Check to see if there's power to the outlet the set is plugged into.
Posted on Dec 01, 2014
Testimonial: "I guess i should Typed that I preformed trouble shoots too. Sorry about that. Here's what I've done. I've unplugged, waited 5 minutes and plugged back in. I've moved to a different outlet. I've held down the power button while unplugged to reset the power supply in case it was a power supply glitch. I've replaced the power cord that plugs into the back of the power supply with another cord in case there was a short in the wire. After all of that I opened up my tv and started testing fuses, diodes, capacitors with an ohmmeter. There are no burn marks anywhere. No capacitors are bulging at the top or have liquid coming out. What I did notice when testing these parts with an ohmmeter is that both fuses will have a current of 40 or so then drop to zero after about 2 seconds. Some diodes also do this and all capacitors do this too.I think I had a surge and it took out most of my power board but I wanted to be sure whether or not the ohmmeter dropping to zero after a couple seconds is normal before buying a new power board."
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Posted on Jan 02, 2017
You can have them repaired using a TV Repair guy but often it costs as much as a brand new tv. My daughter broke my $1,600 LCD. It would have cost $1,200 to fix.. so I just bought a new one.After that I picked up a TV screen protector called TV Armor http://www.tv-armor.com Its designed to protect the TV from damage. Now I dont have to worry anymore when she is playing near it. It works really well.
Posted on May 04, 2008
I had a similar problem with my 32 inch plasma tv. I called vizio's
1 800 number and the guy said to unplug the tv from the wall and hold down the power button for a minute and then plug the tv back in outlet and turn on. And it works I guess from what I understood from his heavy accent was that the tv retains power and this resets it somehow. hope that was helpfull!!
Posted on Nov 04, 2009
There is a part inside
the TV that needs to be replaced. If the TV is under warranty—whether
the original warranty from the manufacture or an extended warranty
purchased with the TV—call the company providing the warranty
coverage and they will arrange to have your TV repaired at little, or
no cost to you.
Since some brands will pay for your repair even if you're out of warranty, especially if they've heard of your problem before and it's a known issue. You should always contact the manufacture first for your full range of options. If they're willing to fix the TV for free, or at a reduced cost to you, let them!
If the TV is out of warranty, and you have the experience and you know what you're doing, you can fix the TV yourself. Purchase the service manual from the manufacture to get started. However, if you've never done anything like this type of repair before and you don't know where to start, I suggest speaking with an experienced TV repair-person.
If you decide to pay for out of warranty repair by a professional repair shop, the total cost will likely be a minimum of $200 parts and labor. However, be warned that the cost could be considerably higher.
I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here. Please be sure to vote on my response. I hope I've earned a good rating from you today!
Please post a comment if you need additional assistance so that I can help you further.
Posted on Jan 11, 2010
Testimonial: "it was helpful thank you do you happen to know what this part is?"
SOURCE: Vizio E371VL doesn't turn on
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.
Posted on Jan 18, 2012
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