Mulja tv repair portal
Equipment Repairs => PLASMA TV forum => Topic started by: Ron-TV on August 19, 2010,08:32:38
-
Hi All
Back about this y-sus board i have now ordered a replacement board!
The fault i was getting was when tv was first switched on the picture would come on and it was a good clear picture although it did have a few sparklies all over the picture, Then after about 5 miniuts the picture would start to be unstable and go very bright like a negative picture and then the picture would go all together.
I have read up the faults on this set and from what i can see is the ipm has gone faulty on the y-sus board and hopfully a replacement should cure this fault. I am hoping it has not caused any damage to any other componants on any other boards it was mentioned that on the back of the control board there are some grey pads and these have a sticky resin and that can become conductive and cause some problems so i have removed this board and cleaned of this resin, I will keep you all posted on how things go with this set .
In the meantime if anyone has any additional info to add i am all ears.
Kind regards to all Ron-TV
:c017:
-
Hi Ron,
From your last have a feeling that a piccy of fault you describe might be useful.
All the best with your Y-Sus - Chris.
-
Hi All
Well i am still having problems with this set i have now changed the y-sus board and it seems the problems are worse ! the picture will only come on when it feels like it i will if i can upload some pics of the screen it sometimes has a grey band down each side of pict about 3" wide. And it flickers on/off it has sparklies all over the screen and is very unstable It looks like it will need more boards giving the fact this is not hd i am thinking is it worth the cost of replacement boards it has already cost £65.00 for the y-sus board if any one knows where i can get cheep replacement boards or even has any replacement (cheep) boards then maybe it would be worth the repair !! who knows ?
:03:
-
Hi Ron,
I'm not an LG expert, but when i see sparklies and LG together, then I always think control board!
I have had a few LG's which usually sparkle when cold(particularly on dark backgrounds) and that is
usually mal discharge of the PDP, which on some models you can 'reprogran' the control board using a Jig from LG. Or i have had to change the control board on some others.
But, I'm a bit worried by the bands down the picture, although I suppose that could be being caused by the control board, I would make sure you check all the caps in the PSU with an ESR meter first.
I think TV tony is the resident LG expert he may be able to pint you in the right direction
Brian
-
Thanks Brian
For your input on these problems, I have had thoughts of it being the control board so have ordered a replacement board and of course will check the caps on the power board. I have tried to contact Tony tv via e-mail and phone but can not make contact, Maybe he is on his summer break?
Any way will see how i get on when i have changed the control board and will keep all posted as to out come.
Thanks for your help Kind regards Ron-TV
-
:57:Big red sweater is very cute FEEL and snow bootstiffany & co (http://www.tiffany-jewellery.net/) are a perfect match. This ultra-popular lamb wool jacket lapel coat, classic Korean style. Big Slim jeans ladies turtleneck sweater dress with a neat able.
-
Hi
Big red sweater with the snow boots just doesnt work for me, but slim jeans and a turtleneck sweater dress, well now you are talking
Brian
-
Hi Bri,
Thought I saw you in Norfolk yesterday - Big red sweater and snow boots, bit of a give-away, but guess was just another passing Tory trying to avoid contact with swaying bovines and smelly natives.
Most Tories hereabouts have moats - well those rustic folks who aren't on their sweet and thoughtful village war memorials try avoid their passing crappy horses and off road motors.
Tugging, as you do in these parts, but forelock is long since in the mind only - Chris.
-
Hi Chris,
You will never see me in a red sweater it clashes with my eyes(bloodshot) and as for my forlock, I had to have it removed in the seventies- a nasty business
Brian
-
Hi Bri,
Thought to add a piccy (mainly for Sparky who doesn't believe in Tories) Daughter has worked there - well she loves moats, gardens and such, as for me - well, couldn't hold my spares case above water long enough to reach the hall and mend the telly.
Still gasping (not drowning) - Chris.
PS - Hall pictured is Helmingham, near Ipswich - featured in a recent 'GQT' on Radio 4 - well worth a visit.
-
Hi Chris,
It looks like a nice place, are you sure it's not your pad and you are really a closet Tory?
Well, if I'm ever in Ipswich I will pay it a visit, if I mention your name will I get a discount??
Brian
P.S I think R.S do a waterproof toolbox and 'crocodile proof' trousers
-
Hi Bri,
Guess you thought I might just be pulling your horticultural carrot,
Not so, as we 'Horny Handed Norfolk Folks' are far more tedious than we might first appear, if possible - well just think - Stephen Fry - and all that useful stuff he hoarded whilst a rather wicked kid in Norfolk before God's own Turkey's came to his rescue.
He was initially mild, but now has great wattles - Chris.
PS - after listening - worth a visit perhaps ? Just remembered original Y-Sus - Small regrets.
-
After 13 months of ownership (just past the warranty expiration) my LG Plasma TV developed a serious problem. These include picture degradation, shutting down at random, screen lines, color degradation and others. We systematically applied solutions such as switching cable locations, using different cables, trying a variety of power supplies (basic strips to battery backup) and nothing seemed to help. We observed the TV in different modes and kept having the same problems whether we were using the Set Top Box (cable), the DVD player or the gaming system. One observation stuck out form the rest – the problem did not occur when we were watching a black and white movie. But as soon as the film ended and we switched to a color movie, the screen popped and went blank.
I started researching the issue on-line (thank you Google!) and after some trial and error with search terms eventually discovered other plasma television owners with similar problems – some have been kind enough to post pictures and videos that allow me to see the same problems as my plasma TV. Further investigation revealed that a common culprit appears to be the Y and Z Sustain Boards. These circuit boards are akin to the vertical and horizontal deflection circuits of older televisions and are at the heart of creating a picture on the screen.
Unfortunately, the Y and Z Sustain Boards (more simply called the YSUS and the ZSUS) are a serious weak point in ALL plasma televisions. Do a Google search for problems with plasma televisions or problems with these boards and your search results will light up with hits! Information about problems with these components span years of plasma manufacturing and cover a wide variety of brand names. The worst offender seems to be LG – especially since they manufacture these boards as components for many other brands and have been doing so for many years.
Doubly unfortunate is that this problem seems to be rampant in the plasma television industry yet no one seems to know about it. It does not seem to be a safety issue (no fire hazard, etc.) so the Consumer Product Safety Commission has no information on it, it is a standard component of larger items with no particular brand involved, so the Better Business Bureau has no records on it, and the issue is spread out and technical enough that the average consumer seems to be unaware that it is such a large issue. How many plasma TV owners have to have this problem before it becomes general consumer knowledge?
In other words – this is a KNOWN ISSUE with plasma televisions yet it has somehow fallen through the cracks of consumer knowledge and the plasma manufacturing industry is certainly not bringing to anyone’s attention.
A call to LG customer support was less than helpful. The customer service representative on the other end of the line had no information on this issue (even though it is quite common). I knew more about the inner workings of my television than he did. The LG warranty does cover the “Panel” for a two year period – and these components would appear to be core to the “Panel” – but the service rep I spoke with could not provide me a definition of what is included as part of the “Panel”.
To put this in perspective, my family once owned a Sony Trinitron for nearly 20 years before it was replaced and our former primary television (still in service) is a nearly decade old Sharp CRT unit. Neither of these units developed the problem this LG Plasma is having and neither ever needed to sort of repairs (both dollar and labor wise) that this plasma unit needs. So yeah – this is big deal. When I spend the kind of money necessary to purchase a product such as a television, I expect to get more than 13 months of service out of it. I intend to get this unit repaired or replaced and I do not intend to be the one paying for it!