Question about Vizio VW37L 37 in. LCD HDTV

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Only lines on upper part of the my screen

I only get some lines in the upper part of my screen and after a minute, the lower part is white. This was after a move to another state, TV was in the original box and in storage for about 7-8 weeks This problem is present on all inputs. It reminds me of older TVs that the vertical/horizontal hold is totally out of adjustment

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With the limited information on your issue and no voltage checks from within the TV, the best I can do is suggest the following.

sounds like a Ysus board issue and/or Zbuffer issue.

If it's the Zbuffer, change the Ysus card along with it as it could be the reason why you are having buffer problems.

While a buffer problem alone will not affect the Ysus card, a Ysus card issue will continue to blow Zbuffers if that's all you change.

check to see if it's still under an extended warranty, if not, then find the service manual for your model online and see if this is something you want to DIY.




Posted on Nov 23, 2013

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Posted on Jan 02, 2017

  • 54 Answers

SOURCE: VIZIO GV4VL cuts off the bottom of screen

on the tv's remote you have a button which says one of a couple things. 1) pic size 2) ratio 3) zoom 4) aspect. using that button push it a couple of times until you get to either 16x9 or full depending on the brand of tv you have

Posted on Jan 22, 2009

  • 1 Answer

SOURCE: Vertical Red Line

I had a bright red 1" wide vertical line on the right side of my Vizio P42HDE as well as an equivalent Green line on the left. Sometimes a Blue line would appear adjacent to the red line. Had this TV sinc Oct. 2005. Based on internet research, I opted to purchase an LG 6871QCH060Q board (upgrade to the 6871QCH038A and the 6871QCH038C). Picked the board up on Ebay for $100 + $10 shipping from ShopJimmy parts.

From start to finish, this took about 2 hours to repair. Tons of screws to remove. Took me a while to figure out that the video connection unit in the back is completely modular and needs to be removed before attempting to remove the back cover. Once the cover was removed, I was surprised that I could not see where the replacement board was located. Turns out, you have to go one level deeper and remove the audio board and digital board followed by metal bracket/cover. Once removing the metal cover, the bad 6871QCH038A board was visible. A couple of zip ties will need to be cut as well as several cable connections to get to the 6871QCH038A board. Replaced the board with the 6871QCH060Q upgrade. Make sure to keep the sticky foam rubber isolation pieces and adhere them to the new board. It did take some time to figure out how to disconnect and reconnect all the various types of cable connections. Just take your time. The power cable connector for the 6871QCH060Q board is in a different location, thus I had to reroute the cable. Reassembled and only had 2 unused screws left!

TV workd great. Lines are gone. Have a little burn-in going on where the red line appeared, but still better than forking over $800 for a new 42" LCD 1080P TV. Hope to get a couple of more years out of this Vizio.

One line I found has a general example of LG/Vizio repair manual. Not exact, but close enough...http://www.scribd.com/doc/7580885/LG-TV-Plasma-Training-Manual

Posted on Feb 18, 2009

dsacco86
  • 1077 Answers

SOURCE: We also have a Vizio with red horizontal lines and our TV is new

It's possible that the motherboard or the controller board for the screen is defective. At this point, I would use the warranty from Vizio. It should be no doubt that it covered. Here's the info you will need from the Vizio web site.
http://www.vizio.com/support.aspx?id=1588

Posted on Jun 13, 2009

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