4535 612 10261 HD11 Service Manual Page 239
CSIP Level 1 Disassembly and Reassembly: Disassembly Procedures
Backplane Board
Figure 10-52 Removing the Signal Distribution and
Backplane Board Ribbon Cable
Signal Distribution
to Backplane board
ribbon cable
Power supply cavity
E-box
1
➤ To remove the Backplane board
First, refer to the E-box Card Cage
Boards procedure and perform all steps
before proceeding.
Next, refer to the Power Supply proce-
dure and perform step 7 through
step 10 before proceeding.
1. Disconnect the small ribbon cable
connected to the Signal Distribution
and Backplane boards. Access is
through the power supply cavity in
the lower section of the E-box. Pro-
ceed to step 2.
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