|
|
|
View previous topic :: View next topic |
Author |
Message |
Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24303 Location: Langley, BC
TV/Projector: All of them!
|
Link Posted: Sun May 06, 2018 1:45 am Post subject: Repairing defective LED and LCD TVs, incl late model sets. |
|
|
I thought I'd throw this out there, even though it's a bit off the norm for most of you. I have a deal going with a local recycler where I pay him cash, and can have my pick of whatever I want out of the place.
As an aside, BC was late to the recycling table, and as a result, I think it's a bit more organized than other provinces or states. Nothing (AFAIK) leaves the province, the smeltering and processing of all the electronics is apparently in house.
I've done this for about 10 years now, and get all sorts of crap, from laptops to flat screen TVs. The flat screens went through a dry spell for some reason, but recently I received a couple of late model sets that were smart TVs to boot.
I looked at both today, and got them both up and running. Both were LG. One was dead, although the power light was on in standby mode, the other powered up, but had no video or backlight.
Since there are so many issues with the VLSI chips and their ball solder connections, I figured I'd take a standard heat gun/wallpaper removal tool, and gently heat up the big processing chips. My method was very unscientific.. I'd circle the heat wave around the chip, avoiding other SMT components around the chip itself. Once the chip was too hot to touch (somewhere around 400 degrees F, I'd let it cool down. The first set took 3 tries, but it's now been working fine for 3 hours.
The second one I tried something different, I left the set powered up while heating it up. After about 20 seconds of heat, I saw the backlight fire up, stopped heating it up, and saw that the menus popped up on the screen.
Not sure how long they will last, but I'll flip them on CL cheap for $150-200 each with a new universal remote for $8 on ebay, so for 30 minutes total time, not a bad investment!
|
|
Back to top |
|
|
the big E
Joined: 20 Apr 2013 Posts: 1928 Location: speedwell Tn.
|
Link Posted: Mon Jan 10, 2022 6:52 am Post subject: |
|
|
Curt I recently got a couple flat panels tvs I may need some assistance on.(if you don’t mind)
I will likely be posting them on here(both was given to me btw) one is a plasma by lg(1080 model according to the model number when I pull it up) the other is a Emerson brand lcd(works on everything aside from the picture and menus being upside down)
The plasma won’t power up though.
_________________ crt king of black
|
|
Back to top |
|
|
Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24303 Location: Langley, BC
TV/Projector: All of them!
|
Link Posted: Tue Jan 11, 2022 3:00 pm Post subject: |
|
|
Sorry, I am totally out of flat screen repairs at this point. Most aren't worth doing anything with at this point.
|
|
Back to top |
|
|
the big E
Joined: 20 Apr 2013 Posts: 1928 Location: speedwell Tn.
|
Link Posted: Tue Jan 11, 2022 4:06 pm Post subject: |
|
|
Ah ok.
I know what you mean on that.
I prefer to work on crt based sets but im going to see if I can get these two to work.
_________________ crt king of black
|
|
Back to top |
|
|
|
|
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum
|
Forum powered by phpBB © phpBB Group
|
|