TP48200E-H12C1 (Nepal, Ncell)
User Manual
4 Maintenance
Issue 01 (2015-05-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
31
Figure 4-4
Removing an SMU
Step 3
Insert a new SMU into the subrack, push the locking latch towards the left, and pull out the
handle.
Step 4
Slide the new SMU into the subrack slowly along the guide rail, pull in the handle, and then
push the locking latch towards the right.
Step 5
Reset parameters on the SMU.
Figure 4-5
Installing an SMU
----End
Follow-up Procedure
Pack the removed component, and return it to Huawei local warehouse.
4.3.4 Replacing the PCB of UIM02C
Prerequisites
You have obtained an electrostatic discharge (ESD) wrist strap, a pair of ESD gloves, an
ESD box or bag, the cabinet door key, and tools.
The new printed circuit board (PCB) of UIM02C is intact.
Procedure
Step 1
Connect the ground cable to the ESD wrist strap and wear the ESD wrist strap and ESD
gloves.
Step 2
Record the positions on the UIM02C panel for connecting signal cables and disconnect the
cables.
Step 3
Unscrew the UIM02C panel and remove the UIM02C, as shown in Figure 4-6.