Control Data Corporation CYBER 180 810 Maintenance And Parts Manual page 107

REPLACEMENT
1. Pull the smoke detector jumper and outlet ambient jumper (for power
column only) from the faulty assembly and insert into the new assembly.
2. Mount protect module assembly on its holding bracket.
3. Reconnect the three connectors.
4. Apply power to computer cabinet following Computer Cabinet Power Up
procedure steps 3 through 8.
SWITCHING POWER SUPPLY (SPS) METER ASSEMBLY
Refer to figure 4-5, find number 2 for location.
TOOL REQUIRED
Digital voltmeter.
REMOVAL
1. Remove power from computer cabinet following Computer Cabinet Power
Down procedure steps 1 through 5 (page 6-2).
2. Disconnect the 12-position connector from the assembly.
3. Disconnect four holding screws from front of the power control panel
cover.
4. Dismount SPS meter assembly from its mounting plate.
REPLACEMENT
1. Replace new assembly by reversing removal procedure steps 2 through 4.
2. Apply power to computer cabinet following Computer Cabinet Power Up
procedure steps 3 through 8.
3. Connect a digital voltmeter to the meter test points to calibrate
meter for zero percent adjust as follows:
a. Select a logic voltage using the meter rotary switch.
b. Ensure the digital voltmeter reading for the selected logic power
is zero percent adjust to the correct output voltage. If not,
adjust the
03
ADJUST potentiometer on the corresponding logic
power supply interface board to output the correct voltage.
60469500 A 6-13