Troubleshooting By Symptom; System Unit Problems; System Unit Troubleshooting Procedures - DEC DECstation 316+ Service Manual

Table 2–4 (Cont.) BIOS Error Messages
Error
Number Error Message
37 System halted! Must power down.

2.6 Troubleshooting by Symptom

This section describes causes and corrective actions for minor
system problems that you can fix. The troubleshooting procedures
are separated into system unit, hard disk and diskette drives,
monitor, and pointing device problems.

2.6.1 System Unit Problems

Table 2–5 lists some common problems with the system unit,
possible causes, and suggested corrective actions. If the corrective
action does not work and it is possible to run the Diagnose
diagnostics, use them to further isolate the problem and then
replace the failing FRU.
Table 2–5 System Unit Troubleshooting Procedures
Problem
No response when
the system is turned
on.
Power is on, but
there is no monitor
display.
Possible Cause
System is not
plugged in.
No power at wall
outlet.
Voltage select switch
incorrectly set.
Brightness and
contrast controls are
not set properly.
Troubleshooting 2–13
Corrective Action
Turn the system off.
Plug in the system,
then turn the system
on again.
Use a working wall
outlet.
Make sure the 115/230
Vac voltage select
switch is set correctly.
Adjust brightness and
contrast controls.