Service and maintenance
11.8 Removing and installing hardware components
SIMATIC HMI IPC677C
144 Operating Instructions, 04/2013, A5E02722710-04
How to remove the motherboard
3 Remove the power supply cover.
5 Remove the power supply.
4 Remove the bus board.
6 Disconnect all cables from the motherboard, noting down their positions while doing so.
7
Remove the screws ① (6 pieces) and then the screws ② (4 pieces). Remove the processor
heat sink.
8 Remove the hexagon bolts (6 pieces) from the ports.
9 Remove the motherboard.
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