Re: Vizio VT420M speckled picture
Ok now i did something really stupid., I set the LCD to the wrong type in the service menu and now I have no picture. Anyway to recover from that?
cat farmer
Member
Last Activity: 08-13-2016, 06:53 AM
Joined: 03-27-2014
Location: cedar rapids,Iowa
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Re: Vizio VT420M speckled picture
yep, been through the service menu. I reset everything with no change. I ran burn in and the colors all looked good. I am going to look at the LVSD cables again today, see what or if there is something wrong with them, but without a schematic or voltage reference I'm just guessing. I did find that unplugging the right cable made almost no difference to the picture, but by looking at the cables the left one may be the one that carries the voltage to the T-Con, as it has more connecters on it.
my search continues..
...Leave a comment:
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Re: Vizio VT420M speckled picture
So I noticed the service manual I downloaded is missing pages 37 thru 63 which are the pages I need. Found that version a few times on the web. Anyone have the complete manual?Leave a comment:
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Re: Vizio VT420M speckled picture
Thanks guys. I found the service manual but it was worthless. Was more uesr manual then service manual. What happened to the good old days when a service manual told you how to fix a problem?Leave a comment:
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Re: Vizio VT420M speckled picture
Here is a better picture. I have already replaced the tcon board, video is the same....Leave a comment:
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Re: Vizio VT420M speckled picture
Here you go...thanks...Leave a comment:
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Vizio VT420M speckled picture
Hello all,
So my Vizio has a very odd looking picture, one that I can't even find while searching the web. The image starts of jittery for 5 -10 minutes then settles down, but there is red and green shading on the image. I have replaced the tcon board, to no avail. I checked the LVSD cables and they seem to have continuity. I'm guessing it is something with the main board, but not even sure what to look at. I can do the component repair if I knew which ones to even look at.
thanks for any advice.... -
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Great site.. glad I found you!Leave a comment:
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