Technical data

5-2 Chapter 5

Power Supply Troubleshooting

Use this procedure only if you have read Chapter 4 , “Start Troubleshooting Here.” Follow

the procedures in the order given, unless:

• an error message appears on the display; refer to “Error Messages” on page 5-17.

• the fan is not working; refer to “Fan Troubleshooting” on page 5-19.

The power supply group assemblies consist of the following:

•A8 post regulator

• A15 preregulator

All assemblies, however, are related to the power supply group because power is supplied

to each assembly.