HP Z27U G3 - Function test

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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: Function test
Test item
Operating description
Tool used
HDMI test
Confirm whether image displays
Computer or DVD player
DP test
Confirm whether image displays
Computer or DVD player
DP out test
Confirm whether image displays
Computer / DVD player and
other monitor
Type-C test
Confirm whether image displays and charging.
Notebook
RJ45 test
Confirm Network connection is normal.
Notebook and Network
socket
USB Hub Test
Confirm USB function of 4-USB Type-A working
normally.
Computer or Notebook
Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended
solutions.
Table 4-2: Solving common problems
Problem
Possible cause
Solution
Screen is blank or
video is flashing.
Power cord is disconnected.
Connect the power cord.