
B–63465EN/01
2. HARDWARE
43
CAUTION
1 The base printed–circuit board must be removed before the
PCB card can be dismounted and mounted. Observe the
CAUTIONS in Section 2.6.1.
2 Be careful not install the PCB card in an incorrect location.
Otherwise, the printed–circuit board may be damaged. See
Section 2.3.1 for where to install the PCB card.
3 The boot software is stored in the FROM on the CPU card.
When replacing the CPU card, make sure that the function
stored on the replacement CPU card is of the same version
as before or of a later version. Otherwise, it may be
inoperable. (The version of the system software has
nothing to do with the general version of the printed–circuit
board.)
4 The installed boot software varies depending on the type of
the CPU card. When replacing the CPU card, make sure
that the replacement CPU card is also a Digital Servo
Adapter CPU card. Note that the 16i/18i/21i CPU card
cannot be used in place of the Digital Servo Adapter CPU
card.
2.6.2
Mounting and
Demounting Card
PCBS