Huawei BTS3902E WCDMA Hardware Description page 57

BTS3902E WCDMA
Site Maintenance Guide
Take proper ESD measures, for example, wear an ESD wrist strap or ESD gloves, to prevent
electrostatic damage to the boards, modules, or electronic components.
Step 4 Use an M4 Phillips screwdriver to loosen the four captive screws on the housing, as shown in
Figure
Figure 3-1 Loosening the screws on the housing
Step 5 Raise the upper housing until it is stopped, as shown in
Issue 06 (2014-05-16)
NOTICE
3-1.
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3 Replacing the BTS3902E
Figure 3-2.
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