IBM 3270 Hardware User's Manual page 109

3. Remove the display signal cable from the
back of the system unit.
Monochrome
Color
4. If you have the monochrome display, go to
step 9 on page 4-12. If you have a color
display, continue with the next step.
5. Hold the display carefully and tip it gently
onto its back as shown below.
]
0
--
01
0
~ ~
4-10 Book 1 - 3270 PC Work Station User's Guide