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Sharp PC7000A User Manual

Sharp PC7000A
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3 MEMORY DIAGNOSTICS
11)
Outline
The
MEMORY DIAGNOSTICS program serves
to
test
the
function
of
the memory (referred
to
as
MEM in
the
follow*
ing
explanation).
The
memory
area which can be
tested
is
the
entire
accommodable
area
except
for
the
vector
area
-
and
the
area where
the
MS-DOS
is
loaded.
(1.1)
Test
Menu display
When this program
is
started
up,
the
system
displays
the
title
and
the
memory
test
menu
as
shown in Figure
MEM-l.
This display
is
referred
to
as
the
MEM
test
menu.
SHARP
Personal
Computer
System Diagnostics Level. 3
Data
Dec/01/'85
MEMORY [1.11
Memory size =
~!!!!!!
KB
(OxOOOOO
-
Ox~!!!!!!!!!~)
(0) Marching
(1) Address
complement
(2) Aging [Marching
and
ADCOMP]
Please
input
command?
~
Figure MEM·l
MEM
Test
menu
The
MEM
test
menu shows
the
memory
capacity
accom-
modated
in
the
system
on
the
upper
screen.
Memory size
=
!!!!!!~
KB
(OxOOOOO
-
Ox~!!!~~!!!)
The maximum memory capacity
of
this personal computer
is
768
KB.
Prior
to
conducting
the
test,
check
whether
the
memory
capacity
being displayed
is
the
same
as
that
being accom-
modated.
If
the
memory
capacities are
not
identical, a
part
of
the
memory
chip has been damaged.
At
that
time,
the
system
should
be repaired.
(1.2)
Selection
of
Test
Menu
Enter
the
required
test
number
on
the
test
menu
as follows:
[[0]]
to
[[2]]
(1
digit) +
[[.,I]]
(When specifying
[[0]],
it
is
possible
to
press
[[
.,I]]
only.)
The
number
being
entered
is
displayed
on
the
screen. When
pressing
[[
.,I]]
,
the
specified diagnostics
program
is
start-
ed
up_
To
change
the
test
number,
delete
the
number
being enter-
ed
by
using
[[
.]]
and
then
enter
the
correct
number.
-5-
(1.3) EXiting
Test
Menu
PC-700DA
PC-7l0D
When
[[ESC]]
is
entered
before
entering
[[
.,I]],
control
exits
to
the
DIAG
LOADER.
(1.4)
Others
Parameters
of
each
test
program
are
entered
through
10
key + [[
.,]],
When each
test
program
is
called,
by
pressing
[[ESC]],
control
exits
to
the
MEM
test
menu
(Figure MEM-l).
(2) Description
of
Program
(2.1) Marching
(2.1.1)
Outline
After
writing fixed
data
to
the
entire
memory
area,
the
system sequentially reads
data
and
compares
it.
After reading
data,
the
system
writes
other
data.
The
test
procedure
is
outlined
as follows:
1) 0
-+
M:
'"~O'"
W
2) M
-+
0:
'"~O''
R,
"FF'"
W
3)
0
-+
M:
'"FF"
R,
··EE"
W
4)
M
-+
0:
"EE"
R,
"DO'"
W
5) 0
-+
M:
'"DO"
R, '"BB'" W
6)
M
-+
0:
"BB"
R,
"77"
W
7)
0-+M:'"77"R,'"11"W
8)
M-+O:
"11"R,"22"W
9) 0
-+
M:
"22'"
R,
"44"
W
10) M
-+
0:
'"44'"
R,
·'88"
W
11) 0
-+
M:
··88'" R
where
test
area 0
-+
M
data::::
"nn"
Memory read = R
Memory
write
= W
The
program
serVes
to
test
the
entire
memory
area display-
ed
as
the
memory
size
in
the
order
listed
above.
(2.1.2)
Operation
When specifying
this
test,
enter
the
proper
data
to
prompts
displayed
sequentially
as
shown
in
Figure MEM-2.
(a)
Test
(a.l)
Specification of Error
Stop
Error
stop?
[
0:
Yes, 1 : No]:!!!!
If
an
error
oCCurs
while
conducting
this
test,
specify
whether
to
abort
or
continue
the
test.
(a.2)
Confirmation
of
Test
Execution
Test
start?
[0:
Yes,
1:
No] =
!!!
Confirm
whether
to
execute
the
test
or
not.
When entering
[[1]],
the
test
can
be
conducted
from
'"Specifications
of
Error
Stop'"
mentioned
in
(a.l).
On
the
other
hand,
when
entering
[[0]],
the
system
displays
the
screen as shown
in
Figure MEM-2
and
starts
the
test.

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Sharp PC7000A Specifications

General IconGeneral
BrandSharp
ModelPC7000A
CategoryDesktop
LanguageEnglish

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