Mobile phone influent dark ill ! Apple iphone 6 with no backlight display actual maintenance

Machine model iphone 6

Fault phenomenon mobile phone searching for water , there is no display backlight

maintenance process

machine after the first test , after starting up can display white apple , but the backlighting is inactivated .

Remove the mainboard , use a multimeter to measure the seat and the display of the three backlight associated pin when it is found that , due to the main board into the water , the backlight and the backlight power supply circuit 1 , two imaginary pin is welded . FIG . :


display lies in pseudo soldering pin seat

Remove the rear seat will display , we may see more clearly .


soldering pin

The pad , the project is ready to fill the new seats , startup test , the screen was bright , the display normal .


normal display

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