Huawei TP482000B Series - Replacing the Button Board

TP482000B V300R002C03 Telecom Power
(TP482000B-N20B1, TP482000B-N20B2,
TP481200B-N20B1, and TP481200B-N20B2)
User Manual
7 Parts Replacement
Issue 07 (2020-04-10)
Copyright © Huawei Technologies Co., Ltd.
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Figure 7-9 Installing an LCD
Step 6 Place the SMU cover in position and tighten the screws.
Step 7 Reconnect the cables to the RJ45 ports on the SMU based on the recorded information.
Step 8 Disconnect the ground cable for the ESD wrist strap, and take off the ESD wrist strap and
ESD gloves.
----End
7.2.3 Replacing the Button Board
Prerequisites

You have obtained an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, a tool
kit, and the cabinet door key.

The new button board is intact.
Context
To replace the button board, you do not need to disconnect the AC input to the power system.
Procedure
Step 1 Connect the ground cable for the ESD wrist strap, and put on the ESD wrist strap and ESD
gloves.
Step 2 Record the positions of cables connected to RJ45 ports on the SMU, and disconnect the cables
from the ports.
Step 3 Remove the cover from the SMU.