Control Data Corporation CYBER 180 810 Maintenance And Parts Manual page 112

REPLACEMENT
1. Install replacement capacitor by reversing removal procedure steps 2
through 9.
2. Apply power to computer cabinet following Computer Cabinet Power Up
procedure.
AUXILIARY POWER SUPPLY REGULATOR ASSEMBLY
Refer to figure 4-5, find number 10 for location.
TOOL REQUIRED
Digital Voltmeter
REMOVAL
1. Remove power from computer cabinet following Computer Cabinet Power
Down procedure.
WARNING
If backup battery option is installed,
make sure three cable connectors to the
battery packs are disconnected.
2. Disconnect two connectors from the regulator assembly.
3. Remove three regulator assembly holding screws.
4. Pull out regulator assembly from the standoff.
REPLACEMENT
1. Replace new regulator by reversing removal procedure steps 2 through 4.
2. Apply power to computer cabinet following Computer Cabinet Power Up
procedure.
3. Verify the output voltages on the regulator test points 1 through 4
using the voltmeter.
6-18 60469500 A