Each year around beginning of May our local Council has a big household clean out pickup service where old frig microwaves bbqs etc including tvs are placed on the kerb for collection - a scavengers paradise! About 10 days before this I advertise on local Facebook buy swap sell for non-working flat screen tv's of about 40" or over. This year I had immediate response with six offered to me and messages then advising where others had been put out for collection. In the end I got twelve and one of the reasons I think was that these tv's were headed for a compactor truck then landfill which I mentioned in the ad.
The make up of the sets was age 2008 - 2011 models with 5 being name sets (LG and Samsung) the others Chinese generics marketed by electronic chains and Aldi with their in house brands one of which I had never heard of (GVA) there was only one plasma and only 4 had remotes (don't they lead a hard life!).I have very limited workspace so as they came in I did a quick test noted make model year if available on label and what was the basic problem. Strangely enough a number of them had sound ok plus a picture ranging from good to polarised. The mix was 2 x no start, 1x slow to start then ok, 3 x picture problem, 4 x sound no picture, 1 x intermittent picture, 1 x LG plasma which owner advised went pop and went off with no restart. Now we get down to the nitty gritty.
First I decided would be the not starts and sure enough there were 2 x2200uf 10v caps gone so placed an order for 10 rated 16v and after opening the next two sets I only had 3 of those left with two sets now up and running while the third wouldn't do anything now - it was the slow to go one then I found a post on forums very adamant that when recapping that psu a certain small 33uf also had to be replaced - I put in a used 47uf and it worked. One of the sets was working but no remote and buttons on set fiddly to operate - one of the people had given me two sets not working saying he only used them to watch dvds of which he had hundreds so I asked him if he would like this one which he did so set it up for his player and that cleared one out. The GVA a 50" set had a weird toned picture all purplish on the blacks but it came with remote and was in excellent cosmetic condition. I tried several times to adjust the picture setting which were all over the place but it kept reverting to the strange settings until a I saw the reset command which I clicked on then on yes and off went the screen to come back on with a very nice picture - so good my wife claimed the set for her sport viewing (tennis and oz cricket team). The other sets I diagnosed 3 with inverter problems one of which I fixed with a new board for $12 and another by building up the solder contacts on the board tabs going into screen feeds - got that idea off a post here and it fixed the intermittent picture about 8 tabs with 2 contacts each one. I get my parts mainly from China although have had some from UK, USA, and even Poland. I'm away from home now past 5 weeks and have 3 t-cons to fit when I get back - they take from 4 - 6 weeks to arrive and I'm hopeful of at least 2 fixed. The plasma is a problem as I think both the Y and Z boards may be gone and I don't like spending any more than $30 on a tv fix. The last set to I have to work on is a Samsung can't get backlight on, all voltages ok and circuit working as I did get them to flash briefly when poking and prodding but it is 10 years old so if a reflow of inverter or some such doesn't work it may yet make the tip. At least when I do take one out there it does go to a recycling centre and not to a compactor!!
The make up of the sets was age 2008 - 2011 models with 5 being name sets (LG and Samsung) the others Chinese generics marketed by electronic chains and Aldi with their in house brands one of which I had never heard of (GVA) there was only one plasma and only 4 had remotes (don't they lead a hard life!).I have very limited workspace so as they came in I did a quick test noted make model year if available on label and what was the basic problem. Strangely enough a number of them had sound ok plus a picture ranging from good to polarised. The mix was 2 x no start, 1x slow to start then ok, 3 x picture problem, 4 x sound no picture, 1 x intermittent picture, 1 x LG plasma which owner advised went pop and went off with no restart. Now we get down to the nitty gritty.
First I decided would be the not starts and sure enough there were 2 x2200uf 10v caps gone so placed an order for 10 rated 16v and after opening the next two sets I only had 3 of those left with two sets now up and running while the third wouldn't do anything now - it was the slow to go one then I found a post on forums very adamant that when recapping that psu a certain small 33uf also had to be replaced - I put in a used 47uf and it worked. One of the sets was working but no remote and buttons on set fiddly to operate - one of the people had given me two sets not working saying he only used them to watch dvds of which he had hundreds so I asked him if he would like this one which he did so set it up for his player and that cleared one out. The GVA a 50" set had a weird toned picture all purplish on the blacks but it came with remote and was in excellent cosmetic condition. I tried several times to adjust the picture setting which were all over the place but it kept reverting to the strange settings until a I saw the reset command which I clicked on then on yes and off went the screen to come back on with a very nice picture - so good my wife claimed the set for her sport viewing (tennis and oz cricket team). The other sets I diagnosed 3 with inverter problems one of which I fixed with a new board for $12 and another by building up the solder contacts on the board tabs going into screen feeds - got that idea off a post here and it fixed the intermittent picture about 8 tabs with 2 contacts each one. I get my parts mainly from China although have had some from UK, USA, and even Poland. I'm away from home now past 5 weeks and have 3 t-cons to fit when I get back - they take from 4 - 6 weeks to arrive and I'm hopeful of at least 2 fixed. The plasma is a problem as I think both the Y and Z boards may be gone and I don't like spending any more than $30 on a tv fix. The last set to I have to work on is a Samsung can't get backlight on, all voltages ok and circuit working as I did get them to flash briefly when poking and prodding but it is 10 years old so if a reflow of inverter or some such doesn't work it may yet make the tip. At least when I do take one out there it does go to a recycling centre and not to a compactor!!
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