ABB DCT880 - Electronic Tray Removal (T5); Disconnect I;O plugs and remove tray screws (T5)

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3. Disconnect all I/O plugs from the SDCS-
CON-H.
4. Remove the grounding / holding screws at
the electronic tray.
Exchange thyristors size T5
3ADW000449R0101 DCT880 Service Manual e a