HP Z43

20
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 and sound plays
correctly on the monitor.
Computer or DVD player
Mini DP test
Confirm whether image displays and sound plays
correctly on the monitor.
Computer or DVD player
DP test
Confirm whether image displays and sound plays
correctly on the monitor.
Computer or DVD player
USB-C Alt-Mode
Confirm whether image displays and sound plays
correctly on the monitor.
Computer or Notebook
USB-C PD
Function
Confirm PDO/Charging working normally.
Notebook
USB Hub Test
Confirm USB function of 3-USB Type-A and 1-USB
Type-C working normally.
Computer or Notebook
Audio test
Change volume and balance to confirm whether
volume is smooth and loud enough.
Sound bar or Earphone
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.
Monitor is off.
Power the power button.
NOTE: If pressing the Power
button has no effect, press
and hold the power button
for 10 seconds to disable the
Power button lockout
feature.
Master power switch is set to off.
Set the master power switch