Sun Microsystems Netra t 1120, Service Manual

Page: 79 / 148

Chapter 8 Power Subassemblies 8-9
8.3 LED Card
8.3.1 To Remove the LED 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.
SeeSection 7.1 “To Attach the Wrist Strap” on page 7-1.
2. Power off the system.
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 10-way IDC cable from the alarms card.
5. Remove the 4-way molex connector from the rear of the LED card.
6. Use tool Part No. 250-1357-01 (provided with the replacement LED card) to
manœuvre the LED card from the standoffs. See
FIGURE 8-6
on page 8-10.
7. Place the LED card on an ESD mat.
!