Zenith Data Systems Z-171 PC Series Service Manual page 54

Page 4-10
Disassembly/Reassembly
DC Power Board
To access the DC power board, remove the back cover and the main
logic board. Refer to Figure 4-8 for the following procedures.
1. Unplug the two DC power cables (P3, and P5).
2. Remove the three screws at A that secure the power control board
to the chassis.
3. | Remove the board by sliding the board towards the disk drives until
the contrast knob and the power switch clear the enclosure. Then
lift straight up.
NOTE: Keep track of which wires go on which connectors for reassembly.
Reverse the previous steps for reassembly.
Figure 4-8: DC Power Board