OVERVIEW
There are five power regulators. Working from the rear of the cabinet,
imagine the regulators numbered 1 to 5, from left to right, as shown in
Figure 2–6.
Check the revision level of the H7214 power regulator in position 2. The
three-segment oblong bar-coded label has the revision level information on
the middle segment. If the revision level is at A or B, you will replace
the power regulator with a newer H7214 of revision C or above. See
Section 2.3.1.
If the H7214 regulator in position 2 is already at revision level C or above,
do not remove it. Skip Section 2.3.1 and proceed to Section 2.3.2.
You must remove the H7214 power regulator in position 3, no matter what
its revision level. A new H7242 power regulator goes in this position; see
Step 3, Section 2.4.
XMI-1 to XMI-2 Conversion
2–11
