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The posistor which is also called Posistive Coefficient Thermistor(PTC) is an electronics device common in almost all television circuit.At room temperature(25'C) it has a low resistance but the resistance becomes high when current flows through it.The posistor works in conjunction with the degaussing coil to give a balance colour on the screen.
whenever there is colour patches on screen,this is a sign of defective posistor.A short in degaussing coil can also result to a dead circuit.
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Hi! For Technical related issues related to your LED, LCD, Plasma, Curved LED, OLED, Ultra HD LED, 4K LED of the Brand LG in Bangalore click on the below link
LG Electronics Service Centre Bangalore
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