HP ZBook Studio G3 Maintenance and Service Guide - Page 102

Burnt smell, POST, No video (with power

Get HP ZBook Studio G3 PDF manuals and user guides View all HP ZBook Studio G3 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 102 highlights

Burnt smell Symptoms Emits smoke, burnt smell Possible causes Defective on-board components. Troubleshooting steps General visual inspection 1. Disconnect the computer from power source (AC adapter and battery). 2. Inspect for visual damage on AC adapter and battery. Test on a known working computer to isolate issue. If issue follows AC adapter or battery, replace it. 3. Inspect any sign of liquid spill on the computer (back of keyboard). The sections below are intended for authorized service providers/technicians. Further inspection on components 1. Inspect further sources internally after disassembling chassis, such as burnt or damaged components. 2. If the issue persists, replace boards, AC adapter, and battery for safety concern and report issues to HP. POST No video (with power) Symptoms Possible causes ● No video (black/blank image) but Failed display have power Failed critical components (memory, storage device, system board) ● Light activity Loose connection ● No error messages Recently added hardware ● Fan noise NOTE: Assume the computer has not previously been set up for multiple displays. ● Hard drive light blinking and hard drive noise Troubleshooting steps Quick check 1. Verify that system light activity is OK. 2. Remove all external devices, including docking station. Recently added hardware and/or applications may cause graphics driver conflict and result in loss of video. 3. Perform hardware reset (8. Hard reset on page 76) and verify that HP Logo is presented correctly on display screen when pressing F10. 4. Test with external monitor via VGA port (or DisplayPort, HDMI, etc). Press power button and close the computer lid to force video output to external video. If unsuccessful, contact HP service. 88 Chapter 7 Troubleshooting guide

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
Burnt smell
Symptoms
Emits smoke, burnt smell
Possible causes
Defective on-board components.
Troubleshooting steps
General visual inspection
1.
Disconnect the computer from power source (AC adapter and battery).
2.
Inspect for visual damage on AC adapter and battery. Test on a known working
computer to isolate issue. If issue follows AC adapter or battery, replace it.
3.
Inspect any sign of liquid spill on the computer (back of keyboard).
The sections below are intended for authorized service providers/technicians.
Further inspection on components
1.
Inspect further sources internally after disassembling chassis, such as burnt or
damaged components.
2.
If the issue persists, replace boards, AC adapter, and battery for safety concern
and report issues to HP.
POST
No video (with power)
Symptoms
●
No video (black/blank image) but
have power
●
Light activity
●
No error messages
●
Fan noise
●
Hard drive light blinking and hard
drive noise
Possible causes
Failed display
Failed critical components (memory, storage device, system board)
Loose connection
Recently added hardware
NOTE:
Assume the computer has not previously been set up for multiple displays.
Troubleshooting steps
Quick check
1.
Verify that system light activity is OK.
2.
Remove all external devices, including docking station. Recently added hardware
and/or applications may cause graphics driver
conflict
and result in loss of video.
3.
Perform hardware reset (
8. Hard reset
on page
76
) and verify that HP Logo is presented
correctly on display screen when pressing
F10
.
4.
Test with external monitor via VGA port (or DisplayPort, HDMI, etc). Press power button
and close the computer lid to force video output to external video. If unsuccessful,
contact HP service.
88
Chapter 7
Troubleshooting guide