4-2
Netra t 1120/1125 Service Manual • August 1998
4.1
Power-On Failure
This section provides examples of power-on failure symptoms and suggested
actions.
Symptom
The system does not power up when the power switch is pressed.
Action
Check that the input power connector(s) is/are correctly fitted. Check that the
external circuit breaker(s), if fitted, is/are correctly set.
Press the power switch at the front of the system unit. If the system powers on, no
further action is required. If the system does not power on, one of the CPU modules
may not be properly seated. Remove the top cover and inspect each CPU module for
proper seating. If the system powers on, no further action is required.
If the input power has been verified, each CPU module is properly seated, and the
power-on key has been pressed but the system does not power up, the system power
supply may be defective. See Section 4.3 “Power Supply Test” on page 4-5.
Symptom
The system attempts to power up but does not boot.
Action
Press the power-on button. If the system unit still fails to boot, refer to Section 3.6
“Motherboard Test” on page 3-22.
Содержание Netra t 1120
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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...