Compaq AP550 Compaq Professional Workstation AP550 Maintenance & Service G - Page 86

I/O Panel, Disconnect all cables that are attached to the system board.

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Removal and Replacement Procedures 3-53 I/O Panel To remove the I/O panel: 1. Perform the steps in the "Service Preparations" section as previously shown. CAUTION: Before removing the workstation access panel, ensure that the workstation is turned off, all cables are disconnected from the back of the workstation, and the power cord is disconnected from the grounded AC outlet. 2. Remove the workstation access panel. 3. Remove all expansion boards. 4. Remove the speaker. 5. Remove the power supply. 6. Disconnect all cables that are attached to the system board. 7. Remove the system board. 8. Remove the I/O panel from the back of the chassis. Figure 3-46. Removing the I/O panel To replace the I/O panel, reverse the above procedure. CAUTION: Damage to the system board could result if all the power cables are not properly reconnected to the system board.

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Removal and Replacement Procedures
3-53
I/O Panel
To remove the I/O panel:
1.
Perform the steps in the “Service Preparations” section as previously shown.
CAUTION:
Before removing the workstation access panel, ensure that the workstation is
turned off, all cables are disconnected from the back of the workstation, and the power cord is
disconnected from the grounded AC outlet.
2.
Remove the workstation access panel.
3.
Remove all expansion boards.
4.
Remove the speaker.
5.
Remove the power supply.
6.
Disconnect all cables that are attached to the system board.
7.
Remove the system board.
8.
Remove the I/O panel from the back of the chassis.
Figure 3-46.
Removing the I/O panel
To replace the I/O panel, reverse the above procedure.
CAUTION:
Damage to the system board could result if all the power cables are not properly
reconnected to the system board.