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1) Use a soldering iron and a de-soldering pump to remove as much solder as possible from the pin.
2) Lift the USB-A connector from the PCB.
3) Place the new component on the PCB. Be sure that it matches the PCB footprint.
4) Solder the new component.
Function test
After repair, be sure to confirm that all functions are working.
Table 4-1:
Test item
HDMI test
DP test
DP out test
Type-C test
RJ45 test
USB Hub Test
Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended
solutions.
Table 4-2:
Problem
Screen is blank or
video is flashing.
22
Function test
Operating description
Confirm whether image displays
Confirm whether image displays
Confirm whether image displays
Confirm whether image displays and charging.
Confirm Network connection is normal.
Confirm USB function of 4-USB Type-A working
normally.
Solving common problems
Possible cause
Power cord is disconnected.
Tool used
Computer or DVD player
Computer or DVD player
Computer / DVD player and
other monitor
Notebook
Notebook and Network
socket
Computer or Notebook
Solution
Connect the power cord.
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