Ac Adapter Issue - HP ZBook Fury 17 G7 Maintenance And Service Manual

Table 7-10 Issues, possible causes, and fixes (continued)
Items

AC adapter issue

Use this information to troubleshoot AC adapter issues.
Table 7-11 Issues, possible causes, and fixes
Symptoms
No sign of power
●
No boot
●
No rear power light
●
● No front power light
● Battery does not charge when AC
adapter is connected
ENWW
Procedures
a. If system boots, reinstall nonessential hardware one component at a time to isolate
issue.
b. If system does not boot, replace essential hardware with verified working parts, one
component at a time. If system still does not boot, replace system board.
Solution
Possible causes
AC adapter and others (for example, external power source).
Troubleshooting steps
Quick check
1. Verify external power source
2. Remove all external devices, including docking station.
3. Perform a hard reset for the computer
4. Disconnect and reassemble the power cord and adapter in case the adapter
experienced short circuit, over current, over temperature events.
5. Use a verified working adapter. If the computer operates normally, there is a
problem with the original adapter.
6. Verify that the AC adapter works on a verified working computer. If the computer
operates normally, there is no problem with the adapter. See
warning message on page 140
(2. Examine the environment on page
(8. Hard reset on page
for further information.
Common issues and possible solutions 127
106).
115).
HP Smart Adapter