Vector 4 - Page 156

VECTOR 4
TECHNICAL INFORMATION
SECTION IV - TESTING SOFTWARE
Summary: The following section desceribes the purposes and
procedures for using both automatic and optional testing programs
supplied with the Vector 4. These programs test the CPU, the
CRT, the Memory, the ports, the keyboard, and the printer(s). The
automatic tests check the separate blocks of RAM, the Executive
PROM, and the keyboard processor and I/O.
Note also that the DISKTEST program is available for testing of
both hard and floppy drives. Refer to Section III 3.1 for a brief
explanation of some commands used in the DISKTEST program, or
see the DISKTEST manual.
41 CPRU Test
4.1.1 Purpose Of Test
This program runs a quick check on the CPU portion of the SBC. It should
be used when the Vector 4 is suspected, either because of the Troubleshooting
Guide (PART V) of this manual or by other reasons, of having a faulty CPU.,
4.1.2 Procedures For Using CPU Test
Ente'r the command CPUTEST [RETURN]L The screen will clear and display:
CPUTEST VER. 1.X
This program will read and write address 1AAH with AAH
Enter [CTRL C] to return to CP/M
When this banner displays, the test is finished.
4.2 Screen Test
4,2.1 Purpose Of Test
This program can be used in conjunction with Part III, Section 2, "Adjust
CRT".
It
should
be
run
when
the
Vector
4
SBC
needs
to
have
the
CRT
adjusted.
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4-1