Troubleshooting Tables
System
Problems
Table 10–9 covers general system power-up problems.
Table 10–9 System Problems
Symptom
Possible Cause
Corrective Action
Fan not running
A fan failed.
Check the red fan failure LED.
•
If the LED is on, a fan has
failed; replace the fan.
•
If the LED is off, the fans
are OK.
The three fan
connections are not
connected.
Reseat the connectors. If
needed, replace the harness.
The power supply failed.
Replace the power supply.
The DC OK LED is off.
No system power.
Check the power outlet and
cord.
System power supply
failure.
Replace the power supply.
1
3.4V regulator failure.
Replace the regulator.
1
Incorrect power supply
harness connection.
Check the harness connectors.
Replace them as required.
All LEDs do not work.
The LSM module/cable
or system module failed.
See Chapter 8 for module
locations.
The monitor is blank,
and the diagnostic LEDs
display 00.
The SROM jumper
setting is incorrect.
See Chapter 7. Reset the
jumper.
Reseat the I/O module.
Reseat memory motherboards.
The power-up display
does not appear and the
diagnostic LEDs DD code
is on.
The monitor is turned
off.
Turn on the monitor.
1
It is recommended that the regulator is changed first, as its failure can turn off the power supply. If this
does not work, the power supply must be tried next. All cables need to be connected to the system module,
otherwise the power supply may not turn on.
(continued on next page)
10–12
Содержание DEC 3000 600 AXP
Страница 57: ...BA47X AA Vertical Floor Stand Figure 3 8 Removing the Mounting Plate MLO 011165 4 5 3 12...
Страница 60: ...System Cover Figure 3 9 Removing the System Cover MLO 008608 2 2 1 0 1 3 15...
Страница 65: ...Removable Media Devices Figure 3 11 Loosening the Screws on the Bracket MLO 011167 1 3 20...
Страница 81: ...I O Board Figure 3 18 Removing the I O Board 1 2 3 3 4 MLO 011172 3 36...
Страница 149: ...Front View Figure 6 1 Front View Line In 1 2 3 4 5 MLO 007553 7 8 9 10 11 12 6 14 13 6 6...
Страница 152: ...Rear View Figure 6 2 Rear View ISDN S3 1 3 4 5 6 8 10 11 MLO 010854 2 1 0 3 4 5 2 7 9 6 9...
Страница 189: ...Power Supply Figure 8 10 Removing the Power Supply MLO 011224 3 4 2 8 20...
Страница 193: ...RZxx Disk Drives Figure 8 11 Removing an RZxx Drive 1 2 4 3 MLO 011225 8 24...
Страница 199: ...I O Module Figure 8 14 I O Module Cable Connections 2 1 0 MLO 011227 ISDN S3 3 4 5 1 8 30...
Страница 200: ...I O Module Figure 8 15 Removing the I O Module Side View MLO 011228 2 3 4 5 6 8 31...
Страница 204: ...Fans Figure 8 17 Removing a Fan 1 Front 2 3 4 MLO 011229 8 35...
Страница 207: ...Memory Mother Board Figure 8 18 Removing a Memory Mother Board MLO 011230 1 2 8 38...
Страница 210: ...Memory Module Figure 8 19 Removing SIMMs 1 2 MLO 011231 8 41...
Страница 291: ...Installation Procedure Figure 11 14 Front View of the System Line In 1 2 3 4 5 6 7 8 9 10 11 MLO 011260 11 27...
Страница 319: ...Installation Procedure Figure 12 14 Front View of the System Line In 1 2 11 10 9 8 7 6 5 4 3 MLO 011246 12 27...
Страница 430: ...Setting a Unique SCSI Address the OpenVMS AXP and DEC OSF 1 AXP operating systems 16 4...
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