Function Test; Support And Troubleshooting - HP Engage One 10 Maintenance And Service Manual

Function test

After repair, be sure to confirm that all functions are working.
Table 4-1:
Test item
HDMI test
DP test
D-SUB test
Audio test

Support and troubleshooting

The following table lists possible problems, the possible cause or each problem, and the recommended solutions.
Problem
Screen is blank or
video is flashing.
Image appears too dark.
Input Signal Not Found is
displayed on screen.
Input Signal Out of Range
is displayed on screen.
The monitor is off but it did
not seem to enter a low-
power sleep mode.
OSD Lockout is displayed.
Power Button Lockout is
displayed.
16
Function test
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
USB video cable is not connected.
System is in sleep mode.
Video card is incompatible.
Brightness setting is too low.
Monitor video cable is
disconnected.
Video resolution and/or refresh
rate are set higher than the
monitor supports.
The monitor's sleep mode is
disabled.
The monitor's OSD Lockout
function is enabled.
The monitor's Power Button
Lockout function is enabled.
Tool used
Computer or DVD player
Computer or DVD player
Computer or D-SUB player
Speaker
Solution
Connect the video cable between the source device
and monitor. Be sure the computer power is off while
you connect the video cable. Refer to
cable on page 4 for more information.
Press any key on the keyboard or move the mouse
to exit sleep mode.
Replace the video card or connect the video cable to
one of the computer's onboard video sources.
Open the OSD menu and select Brightness to adjust the
brightness scale as needed.
Connect the appropriate video signal cable between
the computer and monitor. Be sure that the computer
power is off while connecting the video cable.
Change the settings to a supported setting (see
display resolutions on page
Open the OSD menu and select Power Control,
select Auto- Sleep Mode, and then set auto-sleep to
On.
Press and hold the Menu button for 10 seconds to
disable the OSD Lockout function.
Press and hold the power button for 10 seconds to
disable the Power Button Locket function.
Connecting the
Preset
15).