Apple emac ati usb2 2005 Servicehandbuch
eMac ATI Graphics /USB 2.0/2005 Troubleshooting -
29
No Power Symptom Charts
The computer will not power on.
Note:
During these steps we may ask you to check for power. Whenever you check for power,
plug in the computer and follow the steps.
1.
Plug the computer into a known good power outlet.
2.
Check the power cord. Use a known good power cord.
3.
Verify that the power cord is securely plugged into both the A/C outlet and back of the computer.
4.
Disconnect the keyboard, mouse, and all other peripherals (such as speakers).
5.
Position the computer face down, so it rests on the CRT.
6.
Remove the user access door.
7
Touch a metal surface inside the computer to ground yourself.
8
Unplug the computer.
9
Verify the battery is good. A drained battery may be indicative of a crashed Power Management
Unit. Does the battery measure at least +3.5v? If not, replace the battery and reset the PMU
(see next step).
Unit. Does the battery measure at least +3.5v? If not, replace the battery and reset the PMU
(see next step).