HP 9020 Service Manual page 155

Assembly Access
4-55
CAUTION
DO NOT USE DISCHARGE TOOL FOR MORE THAN TWO DIS-
CHARGES IMMEDIATELY FOLLOWING ONE ANOTHER.
5. Push discharge tool switch down and hold down to discharge capacitors (Figure 4-57).
Discharging takes a few seconds. Meter movement can be observed as switch is held down
until capacitors are completely discharged.
6. Carefully remove discharge tool by pulling straight out of power supply.
WARNING
IF DISCHARGE TOOL IS NOT AVAILABLE, ALLOW 15 MINUTES
FOR THE POWER SUPPLY TO DISCHARGE BEFORE CON-
TINUING.
PUSH SWITCH DOWN
TO DISCHARGE
POWER SUPPLY
Figure 4-57. Discharging Power Supply Assembly