3.2.4 Small Signal Board (SSB)
Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB.
1. Release the clips from the connector that connect with the SSB[1].
Caution: be careful, as these are very fragile connectors!
2. Unplug all other connectors [2] .
3. Remove all the fixation screws [3] from the SSB or M+P BOARD. Refer to Figure 3-15 or Figure 3-16 for details.
4. The SSB / M+P BOARD can now be shifted from side connector cover, then lifted and taken out of the I/O bracket.
Figure 3-15 SSB
Figure 3-16 M+P BOARD (For 4112 Series)
3.2.5 Power Supply Unit (PSU)
Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the PSU.
1. Gently unplug all connectors from the PSU.
2. Remove all fixation screws from the PSU.
3. The PSU can be taken out of the set now.
3.2.6 IR board Control Unit
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