Olivetti M15 Plus - Page 33

As mentioned previously, the operating system diskette is
ordered and delivered separately. When you come to insert
this diskette, please read the following Chapter on the
handling of diskettes before doing so.
THE AUTODIAGNOSTICS (for hard disk
systems)
When you have a system with hard disk you will have to
distinguish between different situations:
In the situations described below the autodiagnostic shows
the additional message: HDU ready (25,A). This means that
the system has recognized your hard disk, and it is now
available for operations:
You are operating on AC power. Hard disk switch is in
either position.
You are working on batteries. The hard disk switch is
in the ON position.
Note: this switch (18,8) must be switched on before the
power switch (17,A) has been switched on.
In the situations described below autodiagnostic shows the
additional message:
HDU is not available (26).
You hear two beeps and the message will be blinking for a
few seconds . This message means that the system did not
recognize the hard disk. Every access to the hard disk
will fail (an appropriate error message is displayed).
3-6
You are working on batteries. The
switched on. Hard disk switch
position (=0).
hard disk
(18,8) in
is not
the OFF
H15 PLUS INSTALLATION AND OPERATIONS GUIDE