Digital Equipment DEC 3000 Series Service Information page 134

Entering and Exiting Console and Service Mode,
Entering
Service Mode
Exiting Service
Mode
4–10
Some diagnostics require that service mode. To enter service
mode, you must first enter console mode. At the console prompt,
enter the following command:
>>> SET DIAG_SECTION 2
To exit service mode and enter program mode, enter one of the
following console commands:

BOOT
The BOOT command initiates a system bootstrap operation.
See Chapter 3.

CONTINUE
The CONTINUE command clears the RC State Flag bit and
resumes processor execution. See Chapter 3.
To exit service mode and enter console mode, enter the following
command:

SET DIAG_SECTION 1
See Chapter 3.
Return
Continued