iPad Air 2 lỗi đèn màn hình
step 1: measure the resistance of socket, if lost -> tracking to line.
step 2: if break or increase number -> short lifting the wires.
step 3: This cathode led lines go straight to IC source. If shorting -> isolate the capacitors (purple frame) on shorting line, if it doesn’t work ->shorting IC source.
step 4: Which side of lights were broke ->replace diots and wire (orange frame) at this line. The capacitors (purple frame) on anode line weren’t found that shorting, but if it has -> gradually isolate.
Note: Most of Lights of Ipad Air will be not bright at one side, often diot was shorting or break -> replace right direction.
step 2: if break or increase number -> short lifting the wires.
step 3: This cathode led lines go straight to IC source. If shorting -> isolate the capacitors (purple frame) on shorting line, if it doesn’t work ->shorting IC source.
step 4: Which side of lights were broke ->replace diots and wire (orange frame) at this line. The capacitors (purple frame) on anode line weren’t found that shorting, but if it has -> gradually isolate.
Note: Most of Lights of Ipad Air will be not bright at one side, often diot was shorting or break -> replace right direction.