Removing The Operator Panel; Removing The Motherboard - Siemens SIMATIC PC 847B Operating Instructions Manual

11.1.8

Removing the Operator Panel

Preparation
1. Isolate the device from mains and disconnect all connecting cables.
2. Open the device.
Removing the operator panel
How to remove the operator panel
1. Loosen the mounting screws (1) on
2. Unplug the cable from the display
11.1.9

Removing the motherboard

Preparation
1. Isolate the device from mains and disconnect all connecting cables.
2. Open the device.
Removing the motherboard
How to remove the motherboard
1.
2.
3.
4.
5.
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01
the inside of the device front (3
x TORX)
module
Remove all modules from their slots.
Removing the bus board
Disconnect all cables from the motherboard, noting down their positions while doing so.
Remove the four screws of the CPU heatsink.
Remove the four screws and six hexagonal bolts from the motherboard.
11.1 Removing and installing hardware components
Maintenance and service
85