iPhone 6 plus chạm áp sơ cấp part 2
step 1: measure here, if shorting -> it was the shorting of primary voltage part 2.
step 2: take off Q1403, then lifting like picture and use heat tracking method in begin part to find where was heat shorting.
step 3: Isolate the capacitors (purple frame and orange frame) at heat area that you doubt.
step 4: Isolate ICs (red frame) at heat area, if it heat nomore -> replace another IC.
In reality, We found that the capacitors (orange frame) were the most shorting. You can see by microscope, if see any capacitors change colour at 2 sides -> shorting ability was high.
step 2: take off Q1403, then lifting like picture and use heat tracking method in begin part to find where was heat shorting.
step 3: Isolate the capacitors (purple frame and orange frame) at heat area that you doubt.
step 4: Isolate ICs (red frame) at heat area, if it heat nomore -> replace another IC.
In reality, We found that the capacitors (orange frame) were the most shorting. You can see by microscope, if see any capacitors change colour at 2 sides -> shorting ability was high.