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Kurzweil K2000 - K2000 Diagnostic Test Menu (v1.0); Running the Burn-in Test

Kurzweil K2000
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SECTION 4
DIAGS1_0.00c
12113/92
Figure
4.14
-
Burn-in
Test
Menu
The
Burn-in
test
can
be
aborted
at
any
time
by
pressing
the
EXIT
button,
then
pressing
any
button
on
the
front
panel
to
return
to
the
diagnostic
test
menu
(the
display
says
"Press
any
key,"
meaning
a
front
panel
button,
not
one
of
the
black-and-white
keys).
It
may
be
necessary
to
press
the
EXIT
button
more
than
once,
because
the
K2000
can
only
recognize
switch
closures
between
tests.
Press
any
front
panel
button
to
interrupt
the
Burn-in
test
temporarily.
The
test
will
resume
when
the
button
is
released.
Press
anyone
of
the
keys,
the
test
will
be
interrupted
and
hold
temporarily;
it
will
resume
when
any
front
panel
button
is
pressed.
4.19.3
Selectinq
a
Specific
Test
To
run
an
individual
test,
use
the
Alpha
Wheel
to
select
the
desired
test
from
the
diagnostic
test
menu.
The
selected
test
is
highlighted
in
reverse.
Press
the
ENTER
button
to
run
the
selected
test
one
time.
When
the
test
is
completed,
the
display
will
show
the
result
of
the
test.
Normally
each
test
need
only
be
run
once
in
the
attempt
to
identify
failures.
If
you
encounter
test
failures,
you
may
want
to
run
the
failed
test
continuously.
Running
a
given
test
continuously
is
recommended
to
monitor
the
K2000's
output
signal
with
an
oscilloscope,
since
many
tests
are
completed
too
quickly
to
be
monitored
in
a
single
pass.
4.19.4
Continuous
Testinq
A
selected
test
can
be
run
indefinitely
by
pressing
2
on
the
alphanumeric
buttonpad,
then
pressing
ENTER.
This
will
cause
the
selected
test
to
run
until
it
is
interrupted
with
the
EXIT
button.
Remember,
it
may
be
necessary
to
press
the
EXIT
button
more
than
once.
Press
any
front
panel
button
to
interrupt
a
continuous
test
temporarily.
The
test
will
resume
when
the
button
is
released.
Press
anyone
of
the
keys,
the
test
will
be
interrupted
and
hold
temporarily,
and
will
resume
when
any
front
panel
button
is
pressed.
As
the
continuous
tests
are
running,
the
bottom
line
of
the
display
will
indicate
the
number
of
tests
that
have
been
completed,
and
the
number
of
failures
that
have
occurred.
4.20
TEST
TYPES
The
tests
described
in
this
section
are
of
three
types,
referred
to
as
RAM
tests,
ROM
tests,
and
1/0
tests.
Memory
tests
check
the
physical
memory
addresses
of
the
data
corresponding
to
various
components.
This
is
done
by
31

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