DEC 4000 600 series Owner's Manual page 216

References
DEC service representative telephone number:
Model Number (circle one):
Serial Number:
Status of the System (check all that apply):
Self-test status lights
9–20 Troubleshooting the System
DEC 4000 AXP
Problem Worksheet
Model 610
DC power light is not on
Self-test status lights remain on
Operating system fails to boot
Diagnostic test error message
Diagnostic Test Screen Display:
Troubleshooting notes:
Model 612
Console program fails to boot
Console error message
Fan failure light is on
MLO-009900