
PS4100 Hardware Maintenance Guide Maintaining Control Modules
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Before replacing a microSD card:
• Attach an electrostatic wrist strap, as described in Protecting Hardware on page 1.
• See Replacing a Control Module on page 22 for instructions on removing a control module.
Removing the MicroSD Card
Caution: To reduce the risk of losing or damaging the microSD card, do not remove it until you are ready
to install it in the replacement control module.
1. Firmly push the card into its housing to release the spring mechanism (Figure 19). The microSD card
will be partially ejected from the housing.
Figure 19 Ejecting the MicroSD Card
2. Gently pull the card straight out of the housing.
3. Place the microSD card on a flat surface where it will be protected from electrostatic charge.
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