HP 9020 Service Manual page 170

Hp 9000 series 500 model 520
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4-70
Assembly Access
I/O Backplane
1.
UNPLUG COMPUTER POWER CORD FROM AC OUTLET.
2. Perform steps 2 through 7 of the 110 Card Cage Fan procedure previously provided.
3. Disconnect 110 door interlock cable connector from 110 backplane (Figure 4-74).
4. Remove #2 Pozidriv screw that attaches front card gUide to casting (Figure 4-74) and
remove front card gUide.
FRONT CARD GUIDE
FRONT CARD GUIDE SCREW
1/0
DOOR INTERLOCK
CABLE CONNECTOR
Figure 4-74. Removing Front Card Guide

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