HP E22 G4, Руководство по техническому обслуживанию и ремонту

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3) Lift the CN501 connector from the PCB.
4) Place the new component on the PCB. Be sure that it matches the PCB footprint.
5) Solder the new component.
Function test
Table 4-1: Function test
Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended solutions.
Test item Operating description Tool used
HDMI test Confirm whether image displays and sound
plays correctly on the monitor
Computer or DVD player
DP test Confirm whether image displays and sound plays
correctly on the monitor Computer or DVD player
Audio test Change volume and balance to confirm whether
volume is smooth and loud enough Speaker
Table 4-2: Solving common problems
Problem Possible cause Solution
Screen is blank or
video is flashing. Power cord is disconnected. Connect the power cord.
Monitor is off. 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.
Video cable is improperly connected. Connect the video cable
properly.
System is in Sleep mode. Press any key on the keyboard