Sun Microsystems Netra t 1120, Service Manual

Page: 113 / 148

Chapter 10 Motherboard and Component Replacement 10-21
10.6 Alarms Card
10.6.1 To Remove the Alarms Card
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.
1. Attach the wrist strap.
See Section 7.1 “To Attach the Wrist Strap” on page 7-1.
2. Power off the system and remove the input power connector(s).
See Section 6.2 “To Power Off the System” on page 6-3.
3. Remove the top access cover.
See Section 7.2 “To Remove the Top Access Cover” on page 7-4.
4. Remove the connector from the alarms card.
5. Using a No.2 Phillips-head screwdriver, remove the screw securing the alarms
card bracket tab to the system chassis.
Caution – Avoid damaging the connector. Apply equal force to both ends or sides
of the board.
6. At the two upper corners of the alarms card, pull the card straight upward from
the slot. See
FIGURE 10-9
on page 10-22.
7. Remove the alarms card.
8. Disconnect the cables from the alarms card.
9. Place the alarms card on an ESD mat.
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