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The T con Board or the LCD panel is faulty. Can confirm by replacing the TCON board.
If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
TV display inverted colors, like a negative photograph because defective panel. Mostly from T-con board. Replace T-con board.
I hope that will solve your problem.
Thanks.
The ic on the T-con board is failing you could confirm this by spraying circuit cooler on the ic . The T-con board is located in the middle top on the unit has a cable from the mainboard to the t-Con
and two other going from it to the panel
You can try either Shopjimmy.com or TopsElectronics in Haverhill Ma
You have bad solder connection in or around the Jungle IC and or color processing Circuits. Most commonly the area is the color cyrstal, located on the main board.
I had the same problem....turned out it was the "lvds" cable that runs from the mainboard to the lcd controller board. Simply remove the tape that holds it to the back of the backlight housing and also remove the foil shielding tape from the connector on the lcd controller board.
You must focus to mainboard of LCD monitor find the voltage regulator IC. Voltage test the regulator IC use digital or analog multimeter range 10v dc connect the negative to cold ground, these regulator providing a constant supply of 2.5 - 5v to all IC in the mainboard. check the scalar IC. Because scalar IC will convert analog input signal of Red, Green & Blue. Lastly check the controller board, check the ribbon cable connector from mainboard to
controller board for lose, check the fuse inside controller. I think the exact problem of your monitor could be either the (mainboard) or (LCD panel where the controller board is located).
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