Function Test; Support And Troubleshooting - HP 24mq 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
Function test
st item
HDMI test
HDMI test
D-SUB test
DP test
Table 4-1: Function test

Support and troubleshooting

Audio test
The following table lists possible problems, the possible cause or each problem, and the
recommended solutions.
The following table lists possible issues, the possible cause of each issue, and the
recommended solutions.
Table 3-1 Common issues and solutions
Issues
Screen is blank
or video is
flashing.
Operating description Operating description
Confirm whether image displays and sound plays
After repair, be sure to confirm that all functions are working.
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
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 Auto-Sleep
Mode.
Video card is incompatible. Open the OSD menu and select the Input
Solution
Connect the power cord.
Press the monitor 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. See
Connecting the cables on page 7
information.
Press any key on the keyboard or
move the mouse to inactivate the
screen blanking utility.
menu. Set Auto- Switch Input to Off and
manually select the input.
or
Replace the video card or connect the video
cable to one of the computer's on-board video
sources.
Tool used Tool used
Computer or DVD
player
Computer or DVD player
Computer or D-SUB
player
Computer or DVD player
Speaker
for more
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