Question about Televison & Video
Screen had red pixelation in top left corner and now the screen has darkened quite a bit
Suspects are main board and power supply board--either can do this. Keep in mind only boards are sold for this type of set---If LG Google the model number with "parts" as there is a place that sells all the boards by model number (not LG itself). You will see a list of the boards the set uses and prices.
Posted on Nov 08, 2012
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Posted on Jan 02, 2017
the actual problem is some of the components on some of the boards are showing signs of age (some of the values are changing slightly) this can be compensated for by adjusting your voltages (such as va & vs ) this take a little tech knowhow. or you can replace the y sus board but adjustments are necessary whenever replacing y or z control boards. hope this helps. i may know where to get boards if you need them.
Posted on Mar 28, 2008
SOURCE: red pixels
This prob shows up often in this set. To solve , remove the 4,784 screws from the rear cover. Plug in and connect the set. Operate until red dots appear. Locate the V_SET-UP control on the Y-SUS board ( the one on the right from the rear ) . VERY CAREFULLY and SLOWLY adjust till dots dissapear and STOP. This adjustment is VERY sesitive and requires only the slightest adjustment with a small insulated screwdiver and a steady hand. BE WARNED ... there are high voltages and high peak pulses on these boards. Not all heat sinks are grounded... some are quite lively. Dont touch anything else, unplug the set and carefully replace the cover. Good Luck..
Posted on Nov 08, 2008
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