Replacing A Tcua Control Board - Huawei Telecom Power TP48200A-HX09A3 User Manual

TP48200A-HX09A3, TP48200A-HX09A4,
TBC300A-DCA3, TBC300A-DCA5 and
TBC300A-TCA2 Telecom Power
User Manual
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Procedure
Step 1 Switch the corresponding circuit breaker on the direct ventilation fan to OFF.
Step 2 Record the positions where the direct ventilation fan connects to all cables, and then
disconnect terminals corresponding to the cables on the control board.
Step 3 Remove the direct ventilation fan, as shown in Figure 4-17.
Figure 4-17 Removing the direct ventilation fan
Step 4 Install a new fan.
Step 5 Connect the cables and bind the cable ties properly.
Step 6 Power on the module to check whether the alarm is cleared.
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4.4.10 Replacing a TCUA Control Board

Prerequisites
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Issue 04 (2019-11-15)
The new fan is intact.
Prepare an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, and the cabinet
door key.
Check that the new TCUA control board is intact.
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