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Chapter 3 Maintenance
27
3.5 I/O Adapter (CPC-2900)
To replace or service the I/O adapter, follow these steps:
1. Verify that the power source to the HMI-640S has been disconnect-
ed.
2. Remove the rear cover. (See Section 3.1.)
3. Remove the screw which attaches the I/O adapter to the Carrier
Board.
4. Replace the I/O adapter and reassemble the HMI-640S.