IBM 5251 Series Maintenance Information Manual page 4

The 5251 Models 1 and 11 Display Stations have the
following specific DANGERs:
• Line voltage is present at the power supply and the
display assembly.
• High voltage is present at the cathode-ray tube.
• The cathode-ray tube could implode if it is hit or if it
falls.
• The green wire in the display assembly is not at
ground voltage.
iv
Safety