3745 FRU Exchange Procedure
ESS Tailgate Exchange Procedure
Removal Procedure
1. Inform the customer that the 3745 is to be
powered OFF.
2. Press Power Off on the control panel.
3. Open the front door and the rear door.
4. Switch CB1 OFF. Refer to Figure 4-85.
Figure 4-85. CB1 Location
5. For physical locations, refer to Figure 4-86
and to Figure 4-87 on page 4-65.
6. Referring to Figure 4-89 on page 4-65 and to
Figure 4-88 on page 4-65 remove the cable
from EAC to tailgate as follow:
a. Remove the cover of the basic board.
Loosen the two screws and lift up the
cover.
b. Attention: Use the ESD kit and proce-
dures.
c. Locate the related EAC card. Refer to
Figure 4-87 on page 4-65.
d. Remove the three non-polarized top card
connector from positions W, X, and Y.
Refer to Figure 4-89 on page 4-65.
e. Disconnect the two cable ground wires
from the board.
f. Withdraw the EAC card until the line cable
(J1) on the component side is accessible.
Disconnect the cable.
g. Unclamp the cable connected to the
tailgate.
h. Remove the external cable from the
related connector.
i. Unscrew the connector (two screws) and
remove it with its internal cable.
Rear
ESS
Tail Gate
Figure 4-86. ESS Tailgate Location
4-64 3745 Models 130 to 17A: MIP