112
90000 A-Series Service Guide
5
Replacing Assemblies
Removing and replacing the power supply
1
Disconnect the power cable and remove the top cover.
2
Disconnect the AC power cable from the bulk +12 V power supply.
The picture below shows where the AC power cable connects to the bulk 12V
power supply.
3
Follow the instructions on the label attached to the top of the power supply to
remove it.
WARNING
SHOCK HAZARD! If the power supply is defective it could have a dangerous charge
on some capacitors. This charge could remain for many days after removing power
from the supply.
WARNING
SHOCK HAZARD! When the power supply is removed, two AC leads are exposed. Be
careful not to come into contact with these leads.
AC power
cable into bulk
12V power
supply
Summary of Contents for Infiniium 90000A Series
Page 1: ...Keysight Infiniium 90000 A Series Oscilloscopes Service Guide...
Page 6: ...6 90000 A Series Oscilloscopes Service Guide...
Page 12: ...12 90000 A Series Service Guide 1 General Information...
Page 18: ...18 90000 A Series Service Guide 2 Calibration...
Page 116: ...116 90000 A Series Service Guide 5 Replacing Assemblies...
Page 120: ...120 90000 A Series Service Guide 6 Replaceable Parts Fan and Acquisition Assembly...
Page 121: ...Replaceable Parts 6 90000 A Series Service Guide 121 Power Supply and PC Motherboard...
Page 122: ...122 90000 A Series Service Guide 6 Replaceable Parts Sleeve and Accessory Pouch...
Page 128: ...128 90000 A Series Service Guide 7 Theory of Operation Oscilloscope block diagram...
Page 135: ......