Table 7-14 Issues, possible causes, and fixes
Items Procedures
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 following steps are for authorized providers or 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
Use the following sections to troubleshoot Power-on Self Test issues.
No video (with power)
Use this information to troubleshoot video issues.
Table 7-15
Issues, possible causes, and fixes
Items Procedures
Symptoms
● No video (black or 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, hard drive, system board)
Loose connection
Recently added hardware
NOTE: These suggestions assume that the computer has not previously been set up
for multiple displays.
POST 119
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