
Chapter 8
Power Subassemblies
8-5
8.1.2
To Replace the Power Supply
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. Position the power supply above the chassis. Rest it, upside-down (unlabeled side
up), on the front crossmember of the enclosure.
3. Connect the power cable to the removeable media drive assembly (if fitted).
4. Connect the three main power supply cables to the motherboard.
5. Connect the power cable to the SCSI backplane assembly.
6. Connect the power cable to the main fan assembly.
7. Connect the cable connector to the alarms card.
8. Position the power supply toward the rear of the chassis until the power supply
rear panel is flush with the chassis.
9. Using a No.2 Phillips-head screwdriver, tighten the eight captive screws securing
the power supply to the rear of the chassis.
10. Using a No.2 Phillips-head screwdriver, tighten the two captive screws securing
the power supply bracket to the chassis front crossmember.
11. Using a No.2 Phillips-head screwdriver, tighten the captive screw within the PSU
to the chassis L-bracket.
12. Using an 8mm wrench, secure the primary earth connection by tightening the M5
nut and captive washer.
13. Using an 8mm wrench, secure the logic ground connection by tightening the two
M5 nuts and captive washers.
14. Replace the top access cover.
See Section 7.3 “To Replace the Top Access Cover” on page 7-6.
15. Reconnect the input power connector(s) and power on the system.
See Section 6.1 “To Power On the System” on page 6-2.
16. Detach the wrist strap.
!
Содержание Netra t 1120
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Страница 58: ...5 2 Netra t 1120 1125 Service Manual August 1998...
Страница 62: ...6 4 Netra t 1120 1125 Service Manual August 1998 FIGURE 6 2 System Power Off Front Panel 1125...
Страница 65: ...Chapter 7 Internal Access 7 3 FIGURE 7 2 Attaching the Wrist Strap to the Rear of the Chassis...
Страница 67: ...Chapter 7 Internal Access 7 5 FIGURE 7 3 Removing the Top Access Cover 1125 Screws Tab...
Страница 69: ...Chapter 7 Internal Access 7 7 4 Replace the two fixing screws FIGURE 7 4 Replacing the Top Access Cover 1125...
Страница 70: ...7 8 Netra t 1120 1125 Service Manual August 1998...
Страница 80: ...8 10 Netra t 1120 1125 Service Manual August 1998 FIGURE 8 6 Removing and Replacing the LED Card 1125 LED card...
Страница 82: ...8 12 Netra t 1120 1125 Service Manual August 1998...
Страница 85: ...Chapter 9 Storage Devices 9 3 FIGURE 9 1 Removing and Replacing a Hard Disk Drive...
Страница 92: ...9 10 Netra t 1120 1125 Service Manual August 1998...
Страница 100: ...10 8 Netra t 1120 1125 Service Manual August 1998 FIGURE 10 4 Removing and Replacing the System Fan Assembly System fan...
Страница 106: ...10 14 Netra t 1120 1125 Service Manual August 1998 FIGURE 10 6 Removing and Replacing a PCI Card 1125 PCI card...
Страница 114: ...10 22 Netra t 1120 1125 Service Manual August 1998 FIGURE 10 9 Removing and Replacing the Alarms Card 1125 Alarms card...
Страница 122: ...10 30 Netra t 1120 1125 Service Manual August 1998...
Страница 124: ...A 2 Netra t 1120 1125 Service Manual August 1998 FIGURE A 1 System Exploded View 1 2 3 4 5 6 8 9 10 11 7 12 13 14...
Страница 130: ...B 4 Netra t 1120 1125 Service Manual August 1998...
Страница 148: ...Index 4 Service Manual August 1998...