Function Test; Support And Troubleshooting - HP Z24m G3 Maintenance And Service Manual

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
HDMI test
DP test
USB-C Alt-Mode
USB-C PD Function
USB Hub Test
Audio test

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
Screen is blank or
video is flashing.
Operating description
Confirm whether image displays
Confirm whether image displays
Confirm whether image displays and sound
plays correctly on the monitor.
Confirm PDO/Charging working normally.
Confirm USB function of 2-USB Type-A and 1-
USB Type-C working normally.
Change volume and balance to confirm
whether volume is smooth and loud enough.
Possible cause
Power cord is disconnected.
Monitor is turned off.
Tool used
Computer or DVD player
Computer or DVD player
Computer or Notebook
Notebook
Computer or Notebook
Sound bar or Earphone
Solution
Connect the power cord.
Power the power button.
NOTE: If pressing the Power
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