Re: LG W3000H distortions after a short while

Well the sad story of this monitor has finally come to an end.
I've finally pinpointed the issue: it was not the tcon, psu or cfl inverter. It was indeed the panel, and specifically one of the side COF chips that went bad once heated.
When mounted inside its case, with the backlight warming everything up, it started misbehaving after about 5 minutes, while out in free air as I was testing it, it could go on indefinitely but a quick blast of hot hair would quickly reveal the fault.
I tried to fiddle with it applying...

Re: LG W3000H distortions after a short while

I've had this monitor for literally years in pieces, can't bring myself to throw it away, so I'm giving it another go!
I've seen some videos of how the pros lay their lcds on transparent tables with a backlight to diagnose issues, so tried the same. All the boards neatly laid out on a table, lcd on a transparent sheet of polycarbonate with some led strips below.
Doing so I've discovered that the panel *works*! I've just noticed a hint of flickering once when just turned on, otherwise I've left it for hours and it's been faultless....

Hello! I have a beautiful 30" LG W3000H lcd monitor which I used up until 2 or 3 years ago: then it started flickering along with portions of the picture moving up and down on their own.
Brought twice to an LG repair centre, the final diagnosis was "it's the panel", and of course the panel was more than a new monitor.
Bit the bullet and bought another monitor, but didn't throw away the LG as I hoped to fix it one day.
Fast forward to today: I suspected the tcon, so bought a replacement on aliexpress for the pricey sum of 30 dollars, and it seems to have fixed the...

Re: LG W3000H distortions after a short while

The thermal paste you see is what remained on the chip after an attempt to cool it with a cpu heatsink (which made no difference), originally it had none.

I ended up carrying it to the shop which will quote me a repair: they said that it could be the tcon...who knows.

I fear that once they'll see the slightly melted inductors on the logic board (as a result of my diy oven reflow attempt) they'll want to change it even if it is not faulty at all
Anyway, thanks for the inputs: I will let you know...

Re: LG W3000H distortions after a short while

Today I have tried reflowing the tcon board by baking it in the oven at 200c for 10 minutes, but it didn't work.
I have also put some rubber seal behind the little elongated things that are sandwiched in the flat cables of the lcd, as I've seen done in a video somewhere...again, no perceivable difference.
I'll buy another 30" (Iyama maybe?) and try to have this repaired by the shop for a fair price, otherwise it's going in the bin

Hi All,
I have this 30" LG display, its story is as follows:

- worked flawlessly for 4 years, then a 200 pixels high horizontal band on the bottom of the screen started acting funny: it would freeze, then slowly become washed out, then black.

- had it repaired by an official LG shop, they changed the logic board and it worked fine again for about 1 year. A thing I've noticed immediately is that after the repair, while disconnected from a signal, it would cycle red, green, blue, white. Beforehand it would just stay black so I think that they have changed something,...

Re: New Members - please post your introductions here

Hi All! I've been lurking this forum every now and then and always found very valuable informations. Now I've joined it because of a nasty problem with my beloved 30" monitor that I desperately want to save...