Step 1520-3
1. Unplug the power cord from the system unit.
2. If you have not already done so, remove the covers as described in “Covers” on
page 7-5.
3. Press and hold the start/stop switch on the operator panel for a few seconds to
discharge the power supply.
4. Unplug the power connectors (P1, P2, P3, P4, P5 and P6) from the power
supply.
5. Plug the power cord into the system unit.
6. There is a small dark-colored switch on the back of the power supply, near the
back of the system. It is a normally off momentary switch. Press and hold this
switch for a few seconds while observing the fan in the power supply and the
power LED on the power supply.
Does the fan in the power supply turn on and the power LED on the power
supply change from blinking to solid while you hold the switch? (When you let
go of the switch, the system will power down.)
NO Replace the power supply. Go to "Map 0410: Repair Checkout" in the
IBM RS/6000 Diagnostic Information for Multiple Bus Systems
.
YES Go to go to “Step 1520-4” on page 2-26.
Chapter 2. Maintenance Analysis Procedures 2-25
To Next Page
Loading...
