Apple MacBook a1466 laptop water damage screen does not display maintenance

Apple MacBook a1466 laptop water damage screen does not display maintenance

Apple MacBook a1466 laptop water damage screen does not display, under the microscope, we found the resistance r7731-pin corrode pad break off. Make up the point, install the resistance, and solve the fault.Normally booting up.

[machine model] Apple MacBook Air a1466 notebook

[mainboard version] 820-00165-a

[fault phenomenon] the screen of notebook water damage is not displayed

[maintenance process]

Received an apple MacBook Air 1466 notebook. The customer described that the screen of water damage was not displayed. Open it and have a look. There are many traces of water damage on the motherboard.

Apple MacBook a1466 laptop water damage screen does not display maintenance Figure 1

Apple MacBook a1466 laptop water damage screen does not display maintenance Figure 2

water damage at the back display chip u7701 is the most serious. After the whole board is cleaned up, the display chip is removed. It is found that there is a pad break off. Scrape out the missing point and install a new chip. The whole machine does not have Short circuit, and the power on test is still dark.

Apple MacBook a1466 laptop water damage screen does not display maintenance Figure 3

Apple MacBook a1466 laptop water damage screen does not display maintenance Figure 4

Under the microscope, we found that the resistance r7731-pin corrode pad break off. The fault was solved after the resistor was installed.Normally booting up。

Apple MacBook a1466 laptop water damage screen does not display maintenance Figure 5