HP ZBook 15v G5 Maintenance And Service Manual page 8

Additional information ...................................................................................................................................... 133
viii
Display ............................................................................................................................................. 110
Display anomalies ......................................................................................................... 110
Symptom .................................................................................................... 111
Quick check ................................................................................................. 111
HP PC Hardware Diagnostics (UEFI) for video test ..................................... 112
Display assembly diagram ......................................................................... 113
Dead pixel ..................................................................................................................... 113
No video (internal) ........................................................................................................ 113
No video (external) ....................................................................................................... 114
DisplayPort/VGA ........................................................................................................... 114
HDMI .............................................................................................................................. 114
No or bad external video via docking ........................................................................... 115
Incorrect or missing color/distorted image .................................................................. 115
Touch screen ................................................................................................................. 116
I/O devices ....................................................................................................................................... 117
Keyboard ....................................................................................................................... 117
Keyboard pointing stick ................................................................................................ 118
Keyboard backlight ....................................................................................................... 118
TouchPad ....................................................................................................................... 119
Network Connectivity Ethernet (RJ-45 jack) ................................................................ 119
Network connectivity wireless (WLAN) ........................................................................ 120
USB ................................................................................................................................ 121
Smart card reader ......................................................................................................... 122
Speaker and headphone audio issues .......................................................................... 123
Thunderbolt (TB) ........................................................................................................... 124
Storage ............................................................................................................................................ 125
Hard drive/solid-state drive not recognized ................................................................ 126
No boot to operating system (no read/write error) ..................................................... 126
Read-write error ........................................................................................................... 127
Slow performance ......................................................................................................... 127
Blue screen (BSOD) error .............................................................................................. 127
Noisy hard drive ............................................................................................................ 128
Mechanical ....................................................................................................................................... 129
Fan error message - 90B .............................................................................................. 129
Noise (sound) ................................................................................................................ 130
Fan runs constantly ...................................................................................................... 131
Thermal shutdown (hot) ............................................................................................... 132
Stuck power button ...................................................................................................... 132
Acronyms ......................................................................................................................................... 133
Blinking lights and boot error codes ............................................................................................... 134