Question about LG Televison & Video
Hi hope someone can give us some help there is redness and shadowing all over screen, its still watchable but want the problem solving its worse when its a dark background on film for ex.
There is one pixel that has gone but i have had someone to look at it and he says they allow upto 5 to be out when they test them is this true, he wasnt very helpful.
hope someone can help thanks sue
It is a plasma so the screen will be OK, the white balance requires adjusting in the main menu.
Plasma Screen have no tolerance with pixels that are out. If faulty in the factory, they are switched off but only if they are not in the centre portion of the screen, otherwise the screen is scrapped.
Posted on Aug 07, 2017
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Posted on Jan 02, 2017
SOURCE: Samsung plasma PS42D5S
You need to adjust the panel voltages, adjust the VS voltage to around 186 volts, if that doesn't change it then adjust the V-Scan voltage down, turn the unit on and apply a video source to it, and while adjusting the voltages look at the screen and you should be abe to watch the video noise fade out.
Posted on Feb 17, 2007
SOURCE: red pixels
you will need a professional to service your tv. basically the tech needs to connect an osciliscope to the y susatain board and adjust the voltages on this board. most plasma tvs will need this done about every seven years because electronic components tend to lose their value over time. this is called electronic drift.
Posted on Oct 24, 2007
I had the red blinking light problem on a toshiba 55s rear projection. It happens once in a while 6 mos ago, but gradually shutsdown after 45 sec or so lately. search the net and found www.casias.com repair log. typical hunch on convergence ic or power supply problem. Decided to replace convergence ic bought at Suburban Electronic Wholesalers ebay store ($15 for 2pcs of STK392-110 ICs). Removed the board at the back 9 screws and wirings (make sure to mark it). removed a electronic board (soldered) that hinders access to the ICs and removed/replaced ICs. You can go to casias.com for actualy pix. And voila!! my TV is now back to normal... I would say if nothing is physically wrong with your motherboard (fuses, etc.) most of the time it is the convergence IC. It doesnt cost much.. so start from there..
Posted on Mar 17, 2008
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