Function Test; Support And Troubleshooting - HP P27v G4 Maintenance And Service Manual

Function test

After repair, be sure to confirm that all functions are working.
Function test
Table 4-1:
Test item
HDMI test
VGA test

Support and troubleshooting

The following table lists possible problems, the possible cause or each problem, and the recommended
solutions.
Solving common problems
Table 4-2:
Problem
Screen is blank
or video is
flashing.
Image appears
blurred,
indistinct, or too
dark.
Check Video
Cable is
displayed on
screen.
Operating description
Confirm whether image displays and sound
plays correctly on the monitor.
Confirm whether image displays and sound
plays correctly on the monitor.
Possible cause
Power cord is disconnected.
Monitor is off.
Video cable is improperly connected.
System is in Sleep mode.
Video card is incompatible.
Brightness is too low.
Monitor video cable is disconnected.
Tool used
Computer or DVD player
Computer
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
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
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