Re: Vizio XVT473SV mainboard question (w/ pics)
OK, so the TCON got there yesterday and (aside from it being improperly shipped, in a too small box, with ZERO padding) it works!
So thanks for all for reading, sorry about misdirection with that off-kilter inductor (which I can now confidently assume came like that from the factory).
If you are like me and have no picture but DO have backlight and DO have sound and CAN switch inputs, there is a good chance it is your tcon. I got mine for $37 ebay refurb but it looks clean enough to be brand new.
Alderweis
Member
Last Activity: 10-29-2014, 08:54 AM
Joined: 09-09-2014
Location: Kernersville, NC
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Re: Vizio XVT473SV mainboard question (w/ pics)
Additionally, I've been building PC's since mid-late 90's (The first CPU I cracked was my first 1ghz AMD T-bird, because of a badly installed heatsink
). My opinion of this is that the thermal paste used was of poor quality and very badly applied. They used too much, as is evidenced with the globs of it covering all sides of the chip on the die itself. This, coupled with the most likely below budget quality of the paste, over time caused the heating function of the heatsink and paste to degrade to the point of thermal...
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Re: Vizio XVT473SV mainboard question (w/ pics)
Well dang, that is crazy. Yeah, I'm the original owner so any rework would have been done prior to boxing. Crazy.
I did some additional scrubbing of the chip itself and that wire. I scrubbed pretty hard with a q-tip and alcohol and broke the little "jumper" wire off. Additionally, the ceramic chip die is coated with a waxy residue that came off when I scratched at it with my fingernail. If this was all from a rework, they sure left a mess. There is a ton of residue coating both the chip and...Leave a comment:
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Re: Vizio XVT473SV mainboard question (w/ pics)
The refurb replacement ($37 USD shipped) was shipped yesterday, should arrive the first of the week. I assure you it is a wire....Leave a comment:
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Re: Vizio XVT473SV mainboard question (w/ pics)
Perhaps you are not expanding the pictures to the original size?
I'm including a detailed image.
Additionally, if you look at the image of the entire tcon I posted, you will see the white square outline around the heatsink/gpu area (could be misidentified as a shadow, but trust me.. it is absolutely not a shadow). On the right side of the image, the outline is white, turning to brown as you move left. Brown = burnt....Leave a comment:
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Re: Vizio XVT473SV mainboard question (w/ pics)
Check out the pictures I posted in the 2nd post. The tcon board is completely fried. I concluded this based on visual inspection of burned/melted wires....Leave a comment:
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Re: Vizio XVT473SV mainboard question (w/ pics)
OK. Should I worry about this (now that I know with certainty that it was the burned up tcon)? Is it possible it came from the factory cock-eyed? I can't really move it... so its not like its lose or anything....Leave a comment:
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Re: Vizio XVT473SV mainboard question (w/ pics)
Well, as that board is completely cooked, I'm going to be replacing the entire thing... so no need for further testing and thus no results...
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Re: Roku/XMBC etc. Something to cut the cable cord
I "cut the cord" 90%, but still have local basic cable ($11/month) for the OTA air stuff, because my house is completely surrounded by 80+ft tall trees, and I can't really get OTA using even super-good antennas. Every time the wind blows, the signal blips.
I also use an older PC tower (Core2Quad, 8GB, 1TB hdd, HDMI), with Windows 7. I prefer the website functionality of HBOGo/Netflix/Amazon/XFinity to any of their apps, so it was a simple choice. I also use a usb "air mouse" (like a wii controller,...Leave a comment:
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Re: Vizio XVT473SV mainboard question (w/ pics)
OK, so its possible that the mainboard came like that from the factory? Not sure. Continuity tests fine on it.
Meanwhile, I could not see the forest for the trees. I had previously inspected each cap and tested the continuity of the fuse on the tcon, but had missed that the entire damn thing was cooked!
New (refurb) tcon is on the way, hopefully resolving my issue. (First thing I'll do is rip the heatsink off and clean/reapply thermal paste.)...Leave a comment:
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Vizio XVT473SV mainboard question (w/ pics)
So during the first Patriot's game of the NFL season on sunday, about 5 minutes into the 2nd quarter, my TV lost its picture. Still saw back light, still had sound, but no picture. I powered it off, and waited a minute and powered it back on. Still no picture (no start logo, nothing) but definetely had back light, and sound.
I was able to change inputs, channels, etc. Sound on different inputs, but no signal at all. I've since let it sit for 3-4 hours unplugged, plugged it in, and powered it on with same behavior (sound, black light, no picture).
I took it apart,... -
Re: New Members - please post your introductions here
Hello. I am a new member, brought here by a malfunctioning Vizio XVT473SV. Great site so far, impressed with the amount of knowledge archived here.Leave a comment:
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