iPad mini 1 lỗi không hiển thị màn hình
step 1: Measure the resistance of sockets. If lost -> tracking to line and joining the wires (yellow frame). If The wires lost resistance from both sides -> takeoff IC source and measure clear circuit.
step 2: measure the capacitors (purple frame), if shorting -> isolate and remove.
step 3: Glue mh and turn on to measure, if voltage too weak ->replace diot and the wire (orange frame) to order 1-2.
step 4: replace IC source. It has duty to amplified voltage supply for screen too. Don’t have personal IC light.
note: 99% light of Ipad mini weren’t worked by broke the lead voltage wire to screen, the reason was took off screen broadside or shorting. Sometime we hadn’t seen break when measured, but still error -> just short lifting it, if socket wasn’t shorting and enough resistance. Go deeper, replace diot 1 ->done.
step 2: measure the capacitors (purple frame), if shorting -> isolate and remove.
step 3: Glue mh and turn on to measure, if voltage too weak ->replace diot and the wire (orange frame) to order 1-2.
step 4: replace IC source. It has duty to amplified voltage supply for screen too. Don’t have personal IC light.
note: 99% light of Ipad mini weren’t worked by broke the lead voltage wire to screen, the reason was took off screen broadside or shorting. Sometime we hadn’t seen break when measured, but still error -> just short lifting it, if socket wasn’t shorting and enough resistance. Go deeper, replace diot 1 ->done.