Function Test; Support And Troubleshooting - HP P22h G4 Maintenance And Service Manual

Function test

After repair, be sure to confirm that all functions are working.
Table 4-1: Function test
Test item Te
VGA test
HDMI test
DP 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 Operating description
Confirm whether image displays and sound plays
correctly on the monitor.
Confirm whether image displays and sound plays
correctly on the monitor.
Confirm whether image displays and sound plays
correctly on the monitor.
Change volume and balance to confirm whether
volume is smooth and loud enough.
Possible cause
Power cord is disconnected.
Monitor is off.
Video cable is improperly connected.
System is in Sleep mode.
Video card is incompatible.
Tool used Tool used
Computer or DVD player
Computer or DVD player
Computer or DVD player
Speaker
Solution
Connect the power cord.
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.
Connect the video cable
properly.
Press any key on the
keyboard or move the
mouse to exit Sleep mode.
Open the OSD menu and
select the Input Control
menu. Set Auto-Switch Input
to Off and manually select
the input
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