HP ZBook 15 G3 Base Model Mobile Workstation User Manual Page 137
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Keyboard point stick
Symptom
Point stick not working properly
Possible causes
Dust trapped under point stick, loose point stick cap.
Troubleshooting steps
1. Inspect any signs of dust, liquid spill that prevent point stick from working.
2. Check whether point stick cap is loose and reseat it if necessary.
The sections below are intended for authorized service providers/technicians.
Example of back of keyboard, including
keyboard, point stick, and backlight
cables.
1. Verify whether keyboard ex cables are in good condition (no delamination or torn
cable end, no missing or cracked tracks, pads).
2. Verify keyboard ex cable ends are fully inserted and aligned with connectors on
system board and back of keyboard and that connector tabs are properly closed.
3. Reseat point stick cables.
Keyboard backlight
Symptom
Backlight function not working
properly
Possible causes
Backlight disabled, loose connection.
Troubleshooting steps
NOTE: Not all notebook computers have backlit keyboards.
A keyboard function key lets you turn the light on and o. Verify if backlit feature is not
disabled by pressing a combination of Fn + Backlit key.
The sections below are intended for authorized service providers/technicians.
1. Verify if backlight ex cables are in good condition (no delamination or torn cable end,
no missing or cracked tracks, pads).
2. Verify backlight ex cable ends are fully inserted and aligned with connectors on
system board and that connector tabs are properly closed.
3. Reseat backlight cable.
Common issues and possible solutions 125
- Maintenance and Service Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Product description 13
- Display 7 19
- Buttons and ngerprint reader 22
- Special function keys 23
- Bottom 15 27
- 3 Illustrated parts catalog 29
- Computer major components 19 31
- Bracket Kit 34
- Cable Kit 34
- Plastics Kit 35
- Mass storage devices 36
- Miscellaneous parts 37
- Tools required 39
- Service considerations 39
- Grounding guidelines 40
- Customer Self-Repair parts 44
- Description Spare part number 46
- SIM card 47
- Memory module 48
- Solid-state drive (M.2) 54
- WLAN module 56
- WWAN module 58
- RTC battery 59
- Keyboard 61
- Speakers 64
- Touchpad module 65
- LED board 66
- Hard drive 70
- Fingerprint reader board 72
- Heat sink assembly 74
- Graphics board 78
- System board 79
- Display assembly 83
- Lock bracket 91
- 7 Troubleshooting guide 92
- Resources 93
- General troubleshooting steps 93
- Identify the issue 94
- 2. Examine the environment 96
- Analyze the issue 97
- Resolve the issue 106
- 13. Replace the system board 109
- Helpful Hints 110
- During operation 111
- Consulting with HP Service 112
- Power-on issues 112
- AC adapter issue 115
- Battery discharges too fast 117
- Burnt smell 118
- No video (with power) 118
- Blinking lights 119
- Diagnostics error messages 120
- Performance (OS) 121
- Intermittent shutdown 122
- Blue screen 123
- No wake up 126
- Unresponsive 128
- Slow performance 128
- Incorrect time and date 129
- Display anomalies 130
- Dead pixel 132
- No video (internal) 132
- No video (external) 133
- DisplayPort/VGA 133
- Touch screen 135
- I/O devices 136
- Keyboard point stick 137
- Keyboard backlight 137
- TouchPad 138
- Smart card reader 142
- Thunderbolt (TB) 144
- Read-write error 147
- Blue screen (BSOD) error 147
- Noisy hard drive 148
- Mechanical 149
- Noise (sound) 150
- Fan runs constantly 151
- Thermal shutdown (hot) 152
- Stuck power button 152
- Additional information 153
- Processor not executing code 154
- Memory module error 154
- Failure - System Board Error 155
- Additional information 145 157
- Error message list 158
- Bug check symbolic names 158
- Use Windows Debugging Tool 159
- 6. Open the crash dump le 162
- Lookup for Bug Check 0xC2 163
- Additional information 151 163
- Cable management 165
- Connector types 166
- Start in Windows 7 168
- Updating the BIOS 169
- Downloading a BIOS update 170
- Start in Windows 10 172
- Guidelines 179
- Backing up your information 180
- Performing a system recovery 181
- Using Windows tools 185
- Restore and recovery 185
- 13 Specications 189
- Hard drive specications 190
- Nonvolatile memory usage 197
- Questions and answers 199
- 16 Recycling 203
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