Chapter 5 Dismantling components
162 SMSO-2-02.05- 15.07.03
5.4.20 Unit control system
For safety information see the section entitled
“Safety Regulations, PCBs”
Preparation
Disconnect supply connections
Dismantle the left-hand side casing
Dismantling
1. Pull the connecting cable to the Power PCB out of the
plug shell.
2. Label all the other plug-in connections and disconnect.
3. Loosen all the other cables on the spring tension termi-
nals (Do not pull out the strands!)
4. Disconnect the protective conductor connection
5. Push the printed circuit board holder hook outwards; the
PCB is pushed out of the holder. Remove the PCB from
the framing and place on an ESD mat!
Repair (see 5.5.8)
Exchange the Flash ROM
Exchange the EEPROM
Installation
Carry out assembly in reverse order to the dismantling pro-
cedure.
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