Question about VIZIO E390i B1E 39 Inch 1080p Smart
Vizio 39 inch flat screen .power light stays on but screen is dark. cant turn on are off with remote .
Hey, could be many things, sounds like a main board problem if can not turn off with remote or buttons on set if any some new sets have to have remote. Need model number and age to help but if main can google part number off of board itself take back off it is the one with the cable hookups on it and see what it cost. One site is www.shopjimmy.com and try it. Good luck
Posted on Apr 21, 2015
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Posted on Jan 02, 2017
SOURCE: vizio p42
had the same problem had the main powerboard replaced they were out of stock and had to send mine in and vizio referbed it I was told it was a common problem with this unit
Posted on Jul 28, 2008
This TV has 2 main circuit boards (2 LCD backlight controlers): the Power Supply board may have fried the video board on it's way out ...
You can either arange to have the TV replaced under warenty if not have it serviced. In any case best of luck with Vizio support line.
Everyone bought this TV because it was so cheap... now we find out why: Vizio cuts corners on everything from engineering to support!! All brands are not created equal. Sometimes you get what you pay for.
Posted on Feb 25, 2009
Assuming the Vizio name is the powerlight, then this is your problem and solution........................The caps (capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Have fun becoming an overnight tv mechanic lol!
If this has helped you (or not), please rate, thank you
Posted on Feb 03, 2010
Not usually as simple as that!
Try this first leave unplugged for 24 hours then replug and turn on. This is the standard reset.
However it often spells the beginning of trouble beginning.
The fail safe circuit detects overheating on certain components and will shut down to prevent fire, so now never leave it on standby and go shopping or to bed without turning it off.
The power board and the sustain boards have been compromised and some components are in the process of failing or have failed. It is not a DIY due to HTelecvtrocution and radiation risks. Circuit diagrams, special tools and knowledge are required to correctly fix this and re tune it. Unlike PC's board swapping does not rectify the total problem.
Please rate my help++++Thanks for using FIXYA
Posted on May 16, 2010
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