Display; Display Anomalies; Symptom - HP ZBook 14U G5 Maintenance And Service Manual

Item

Display

Display anomalies

The display panel is a field replaceable unit (FRU) and must be replaced by only authorized technicians.
However, HP highly recommends that users and technicians observe specific symptom vs. generic symptoms
and utilize the HP PC Hardware Diagnostics (UEFI) tool before any replacement.

Symptom

Common display issues with symptoms:
● Blank/black video
● Incorrect/missing color/distorted image
● Flickering image
Vertical lines (due to LDVS, decreased signal integrity, and data loss)
●
● Dead pixel (due to display liquid, internal transistor, etc.)
● Horizontal lines (due to video memory)
● Distorted when hot (due to thermal issue)
Cracked screen/image (physical damage)
●
● Light leakage/bleeding
Contact support for assistance.
Humming noise (due to frequency settings)
●
Contact support for assistance.
122 Chapter 8 Troubleshooting guide
Procedure
3.
Cracked screen
Verify that date and time are correct.
Display anomalies
Cracked image Blurred image