Troubleshooting Procedures
2.3.3 Procedure 3 Connection Check
The wiring diagram related to the power supply is shown below:
Any of the connectors may be disconnected. Perform Check 1.
Check 1 Make sure the AC adapter and the AC power cord are firmly plugged into the DC IN jack and wall outlet. If these cables are connected firmly, go to Check 2.
Check 2 Replace the AC adapter and the AC power cord with new ones.
∙If the DC IN icon does not light, go to Procedure 5.
∙If the battery icon does not light, go to Check 3.
Check 3 Make sure the battery pack is installed in the computer correctly. If the battery is properly installed and the battery icon still does not light, go to Procedure 4.
PORTEGE M780 Maintenance Manual | [CONFIDENTIAL] |