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TP48200A-HT19C4-1, TBC300A-TCA2 Outdoor Power System User Manual

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Replacing the PCB of UIM02C

Replacing the PCB of UIM02C

Prerequisites

  • An ESD wrist strap, ESD gloves, ESD box or bag, cabinet door key, and required tools are available.

  • The new PCB of UIM02C is intact.

Procedure

  1. Connect the ground cable to the ESD wrist strap, and wear the ESD wrist strap and ESD gloves.
  2. Record the positions on the UIM02C panel for connecting signal cables and disconnect the cables.
  3. Unscrew and remove the UIM02C, as shown in Figure 4-8.

    Figure 4-8  Taking out the main board of UIM02C

  4. Remove the –48 V power cable from the PCB of UIM02C.

    Figure 4-9  Removing the –48 V power cable

  5. Record the positions where the PCB of UIM02C connects to all the cables, and then disconnect the cables.
  6. Remove the PCB, as shown in Figure 4-10.

    Figure 4-10  Removing the PCB of UIM02C

  7. Take out the new PCB and install it.
  8. Connect all cables back to the new PCB based on the record made previously.
  9. Connect the –48 V power cable to the PCB of UIM02C.
  10. Push in the UIM02C and tighten the screws.
  11. Reconnect signal cables to the UIM02C panel based on the recorded information.
  12. Disconnect the ground cable from the ESD wrist strap, and remove the ESD wrist strap and ESD gloves.

Follow-up Procedure

Pack the removed component and return it to the local Huawei warehouse.

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Updated: 2019-03-05

Document ID: EDOC1000078969

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