8
Parts Replacement
8.1 Replacing a General Input Unit
Prerequisites
●
Tools: PDF door key, step ladder, Phillips screwdriver, socket wrench,
multimeter, ESD bag
●
Material: a new general input unit of the same model
●
Before the replacement, ensure that the load services are not affected or
obtain written consent from the customer.
●
If the input switch and NTC are damaged, replace the general input unit with
a new one.
Procedure
Step 1 Turn off the input switch and upstream power distribution switch and make a
warning sign.
Step 2 Remove the communications cable and the DC power cable and mark the
installation positions.
Step 3 Remove the integrated management card and install it on the new general input
unit.
Figure 8-1 Removing the integrated management card
New Main Way 2.0
User Manual
8 Parts Replacement
Issue 05 (2020-10-15)
Copyright © Huawei Technologies Co., Ltd.
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