Anyone bought LG LA6200? - Page 25 - AVS Forum
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post #721 of 733 Old 08-23-2014, 10:00 PM
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Originally Posted by newbienoob View Post
The tech just came out and replaced the mainboard, wiring harness and tape. He said he sees this problem all the time and they all fail the same way. Lg has a service bulletin out there for this exact problem. Mines fixed now.

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Did the tech mention if this particular fault is likely to show sooner as opposed to later? Any particular patterns of operation that are associated with the issue? It'd be nice if it was less likely to occur after a certain term of use. I should start putting more hours on my LA6200 in hopes that if it goes, it goes while under warranty.

My first LA6200 died after about four hours of use; I hope my luck has turned with the replacement.

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post #722 of 733 Old 08-23-2014, 10:09 PM
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Originally Posted by JackN View Post
Did the tech mention if this particular fault is likely to show sooner as opposed to later? Any particular patterns of operation that are associated with the issue? It'd be nice if it was less likely to occur after a certain term of use. I should start putting more hours on my LA6200 in hopes that if it goes, it goes while under warranty.
He said mine was the first he had seen go outside of the factory warranty. He said it would be a $250 repair without my lg extended warranty.

Here is the gist of the problem, faulty tape. Underspecced adhesive on the tape. The service bulletin explains that due to the tv getting hot and then cooling down each time the tv turns on and off the tape eventually looses adhesion. The tape in question holds the wiring harness between the main board (where hdmi ports are) and the power supply. The weight of the cable starts to pull down on the connectors between the 2 parts and eventually through expansion and contraction the connections breaks. He said thats why the tv would turn on and then heat up which in turn breaks the connection between the harness and the board. He also said the wiring harness was under specced as well so he replaced that. He also replaced the main board. He said all three parts are for the bulletin. The firmware on is different than what is currently out.

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post #723 of 733 Old 08-23-2014, 10:42 PM
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Originally Posted by newbienoob View Post
He said mine was the first he had seen go outside of the factory warranty. He said it would be a $250 repair without my lg extended warranty.

That's encouraging; hopefully, the warranty's got me covered (I've about three months left). In your first post about this problem, you mentioned your 6200 showed this issue before a year's time; wasn't the factory warranty still in effect?



Quote:
Originally Posted by newbienoob View Post
Here is the gist of the problem, faulty tape. Underspecced adhesive on the tape. The service bulletin explains that due to the tv getting hot and then cooling down each time the tv turns on and off the tape eventually looses adhesion. The tape in question holds the wiring harness between the main board (where hdmi ports are) and the power supply. The weight of the cable starts to pull down on the connectors between the 2 parts and eventually through expansion and contraction the connections breaks. He said thats why the tv would turn on and then heat up which in turn breaks the connection between the harness and the board. He also said the wiring harness was under specced as well so he replaced that. He also replaced the main board. He said all three parts are for the bulletin. The firmware on is different than what is currently out.

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Very informative, thanks.

It'd almost be tempting to check for this if signs of the problem appear. But: I wouldn't know where to look, and some degree of dismantling would probably be required...and I wouldn't want to get fried touching some capacitor, etc.

I guess I'll just have to go on hoping for the best.
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post #724 of 733 Old 08-24-2014, 12:26 AM
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I was mistaken about being inside my manufactured warranty period. I looked it up and I had purchased the tv last JUNE.



He said that there is a way to tell if the back cover has been removed. Instant warranty void. But if you are outside of warranty there is really nothing to the removal to check the issue. Take ALL the screws off the back and 2 from the bottom near the mount. If it is the first time for removal the back will need to be jiggled a bit to get it to come off. The inside is basically hollow. The main board is basically a 6x6 board. The harness is 12-14" long and goes to the PSU which is even smaller than the main board. There is also 3rd board which I imagine is related to ethernet and back panel connections. That is it it. I was quite suprised to see so little.

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post #725 of 733 Old 08-24-2014, 04:19 AM
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Originally Posted by newbienoob View Post
I was mistaken about being inside my manufactured warranty period. I looked it up and I had purchased the tv last JUNE.



He said that there is a way to tell if the back cover has been removed. Instant warranty void. But if you are outside of warranty there is really nothing to the removal to check the issue. Take ALL the screws off the back and 2 from the bottom near the mount. If it is the first time for removal the back will need to be jiggled a bit to get it to come off. The inside is basically hollow. The main board is basically a 6x6 board. The harness is 12-14" long and goes to the PSU which is even smaller than the main board. There is also 3rd board which I imagine is related to ethernet and back panel connections. That is it it. I was quite suprised to see so little.

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Interesting. I looked over a few pictures of the inside of LGs--couldn't find a 6200--to get a sense of the innards. They do seem to be fairly basic in their connections. Did you notice if the cables use a kind of clip-on connector type? I've done a little work with PCs; much the same ball game, it appears.

It'd be interesting to know whether your 6200 could have been returned to a working state simply by tightening up the connections and re-taping the wires...without any of the component swap outs.

If I'm ever out of warranty with a failed set, it'd probably be worth a quick look at the wiring harness, main board and PSU connections.


Thanks again!
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post #726 of 733 Old 08-24-2014, 10:01 AM
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Originally Posted by JackN View Post
Interesting. I looked over a few pictures of the inside of LGs--couldn't find a 6200--to get a sense of the innards. They do seem to be fairly basic in their connections. Did you notice if the cables use a kind of clip-on connector type? I've done a little work with PCs; much the same ball game, it appears.

It'd be interesting to know whether your 6200 could have been returned to a working state simply by tightening up the connections and re-taping the wires...without any of the component swap outs.

If I'm ever out of warranty with a failed set, it'd probably be worth a quick look at the wiring harness, main board and PSU connections.


Thanks again!
If you are familiar with IDE style ribbon cables then that is kind of what the cable looks like and has a similiar connector just smaller.

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post #727 of 733 Old 08-25-2014, 07:01 AM
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Originally Posted by Primestar31 View Post
New firmware download available! 05.07.01

I've loaded it and power cycled the tv. I don't know what this one does. I sure wish LG would provide changelogs...
Is everyone seeing this version?

I'm still on 05.06.17 with no update available.
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post #728 of 733 Old 08-26-2014, 05:29 PM
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Originally Posted by newbienoob View Post
If you are familiar with IDE style ribbon cables then that is kind of what the cable looks like and has a similiar connector just smaller.

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Awesome sauce.
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post #729 of 733 Old 08-26-2014, 05:31 PM
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Originally Posted by ande8150 View Post
Is everyone seeing this version?

I'm still on 05.06.17 with no update available.


Weird. Maybe they pulled it down after discovering some issues with it.

Or are you looking at the website (it usually lags behind the direct to tv downloads)?
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post #730 of 733 Old 08-26-2014, 05:56 PM
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Weird. Maybe they pulled it down after discovering some issues with it.

Or are you looking at the website (it usually lags behind the direct to tv downloads)?
No, was checking from the TV.
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post #731 of 733 Old Yesterday, 12:21 AM
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No, was checking from the TV.

Huh. Well, odds are it's better to be you in this scenario. It'll be interesting to see how quickly they roll out the next update.
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post #732 of 733 Old Yesterday, 12:21 PM
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Originally Posted by ande8150 View Post
Is everyone seeing this version?

I'm still on 05.06.17 with no update available.
I'm not having any issues since I installed the new firmware, but I have no idea what if anything it "fixed" or added.

My tv is a 42LA6200-UA from last year.
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post #733 of 733 Old Yesterday, 06:18 PM
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Im currently on 5.01.04. How current is that?

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