Power Supply - Advantech PPC-57 Series Manual

3.3 Power Supply

To repair or replace the power supply:
1. Verify that all power sources to the PPC-57 have been discon-
nected.
2. Open the rear cover. (See Section 2.3.)
3. Remove the four screws attaching the power supply to the CPU
board.
4. Disconnect the cable from the power supply.
5. Replace the power supply and reassemble.
Warning: Shut off all power to the PPC-57 before attempt-
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ing to repair the power supply. Switch off the
power and unplug the unit.