Operating instructions

Maintenance and service
12.4 Removing and installing hardware components
SIMATIC Panel PC 677B
128 Operating Instructions, 05/2007, A5E01035609-01
12.4.10 Installing / removing the bus board
Preparation
1. Isolate the device from mains and disconnect all connection cables.
2. Open the device.
Removing the bus board
How to remove the bus board
1 Remove all modules from the slots.
2 Lift out the drive bay module for hard disks and the DVD burner.
3 Loosen the screws (1) and remove
the power supply cover.
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4 Remove the power supply.
5 Remove the screws (1) on the bus
board.
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6 Loosen the screws (1) on the
enclosure.
7 Pull the bus board from the motherboard.