IBM 866631Y Hardware Maintenance Manual - Page 119

FRU information (service only), Diagnostic switch card

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FRU information (service only) Field Replacement Units (FRUs) should be replaced by qualified service personnel only. Diagnostic switch card Use the following illustration when replacing the diagnostic switch card. Review the information in "Before you begin" on page 43. DASD1 RENDON SPOEVCER SMI MEM PS1 NMI CPU PS2 SP VRM PS3 PCIA FAN PS4 PCIB TEMP PCIC 1 Holding screw 2 Diagnostic switch card 1. Power-off the server, if it is on. 2. Disconnect the power cord for each power source from the electrical outlet. Attention: The presence of ac standby power might result in damage to the hardware unless you disconnect the power cord for each power source from the electrical outlet. 3. Remove the top cover (see "Removing the top cover" on page 45). 4. DIsconnect the shuttle (see "Disconnecting the shuttle" on page 110) and move it back slightly. 5. Disconnect the front LED card assembly cable from the diagnostic switch card. 6. Disconnect the diagnostic switch card cable. 7. Remove the screw from the diagnostic switch card. 8. Replace the card and reattach the front LED card cable and the diagnostic switch card cable. © Copyright IBM Corp. 1999 109

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FRU information (service only)
Field Replacement Units (FRUs) should be replaced by qualified service personnel
only.
Diagnostic switch card
Use the following illustration when replacing the diagnostic switch card.
Review the information in “Before you begin” on page 43.
±
1
²
Holding screw
±
2
²
Diagnostic switch card
1.
Power-off the server, if it is on.
2.
Disconnect the power cord for each power source from the electrical outlet.
Attention:
The presence of ac standby power might result in damage to the
hardware unless you disconnect the power cord for each power source from
the electrical outlet.
3.
Remove the top cover (see “Removing the top cover” on page 45).
4.
DIsconnect the shuttle (see “Disconnecting the shuttle” on page 110) and move
it back slightly.
5.
Disconnect the front LED card assembly cable from the diagnostic switch card.
6.
Disconnect the diagnostic switch card cable.
7.
Remove the screw from the diagnostic switch card.
8.
Replace the card and reattach the front LED card cable and the diagnostic
switch card cable.
© Copyright IBM Corp. 1999
109