Specifications
2–12 Maintenance and Service Guide
Troubleshooting
Flowchart 2.2—No Power, Part 1
1. Reset the power cables in the docking device 
and at the AC outlet.
2. Be sure the AC power source is active.
3. Be sure that the power strip is working.
Done
Remove from
docking device
(if applicable).
Power up
on battery
power?
Power up
on AC
power?
Power up in 
docking 
device?
Power up
on battery
power?
Power up
in docking 
device?
Done
Reset
 power.*
Reset
 power.*
Power up
on AC power?
N
Y
Y
N
N
Y
N
N
Y
Y
YN
1. On select computer models, there is a 
separate reset button.
2. On select computer models, the computer 
can be reset using the standby switch and 
either the lid switch or the main power 
switch.
*NOTES
Go to
“Flowchart 
2.4—No Power, 
Part 3.”
Go to
“Flowchart 
2.3—No Power, 
Part 2.”
Go to
“Flowchart 
2.8—Nonfunctioning 
Docking Device (if 
applicable).”
No power 
(power LED
is off).










