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Servicing Your Mainframe
Chapter 5
Replacing Assemblies
This section contains instructions for replacing the basic monitor, power
supply, power supply fan, and impeller.These assemblies are available from
Hewlett-Packard under the part numbers shown in Table 5-2. Contact the HP
TMO Business Center at 1-800-829-4444 to obtain replacement assemblies.
Table 5-1. Isolating Problems Within the HP E840xA Mainframe.
Symptom
Action
Flashing Voltages Indicator
One or more backplane voltages may be out of specification. Check
diagnostic connector pins 1, 2, 3, 4, 14,15,16. Check for a loose cable
between the basic monitor assembly and the backplane. Replace power
supply if any voltage remains out of specification.
Flashing Temperature Indicator
Power supply or slot temperature is high. Mainframe is nearing automatic
shutdown. Check for proper airflow and clearance around the mainframe.
Flashing Fans Indicator
Power supply fan or mainframe impeller has failed. Visually inspect to
determine which fan is not rotating. Turn off mainframe to avoid possible
overheating. Replace the affected fan.
Monitor indicators are off and
fans do not operate when On
button is pressed.
Check for a loose cable between the basic monitor assembly and the
backplane. Replace the basic monitor board.
No monitor indicators when
mainframe is turned on.
Check diagnostic connector pins 1, 2, 3, 4, 13, 14, 15, 16 to determine if
backplane voltages are within specification and power supply and backplane
impeller are functioning. Replace the basic monitor
The SYSFAIL indicator will come on and remain on when a VXI module installed in the mainframe fails.
Table 5-2. HP E8400A Replacement Assemblies
Assembly
HP E8402A
Part Number
HP E8404A
Part Number
Enhanced Monitor
Display PC Board
E8402-66502
E8402-66502
Temperature Sensor PC
Boards (replace all
three)
E8401-66504
(includes all three PC
boards)
E8401-66504
(includes all three PC
boards
Enhanced Monitor
Controller PC Board
E8401-66503
E8401-66503
Enhanced Monitor
Display Lamp
Power Supply
E8401-69204
500 W Power Supply
Exchange Assembly
E8403-69204
1000W Power Supply
Exchange Assembly
Impeller (backplane fan)
E8400-68501
E8400-68501
Содержание E8402A
Страница 8: ...10 Contents ...
Страница 12: ...14 Notes ...
Страница 14: ......
Страница 26: ...28 Getting Started Chapter 1 ...
Страница 42: ...44 Using the Enhanced Monitor Chapter 2 ...
Страница 214: ...216 Servicing Your Mainframe Chapter 5 ...
Страница 226: ...228 HP E8402 E8404A Product Specifications Appendix A ...