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Kurzweil K2000 - Interface and Controller Tests (v1.0); Audio Board, MIDI, FDC, SCSI Tests

Kurzweil K2000
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SECTION 4
DIAGS1_0.00c
12/13/92
Calvin
and
Hobbes
have
undergone
rigorous
testing
prior
to
mass
manufacturing,
and
are
extremely
unlikely
to
be
defective.
If
one
or
more
of
the
steps
in
this
test
indicate
a
failure,
the
problem
is
probably
to
be
found
in
the
connections
between
the
chips
and
the
CPU.
The
test
results
are
displayed
as
shown
in
Figure
4.17.
The
significance
of
failures
in
each
step
of
the
test
is
explained
below.
Steps
2.1-2.3
test
the
connections
to
the
internal
RAM
and
internal
registers
of
Calvin
and
Hobbes.
When
analyzing
the
results
of
these
tests,
you're
looking
for
a
PASS
message
for
each
test.
The
hexadecimal
numbers
that
appear
on
the
display
are
irrelevant
as
long
as
they
match
for
each
test.
The
numbers
shown
in
figure
5.16
are
arbitrary,
and
may
differ
from
the
numbers
you
see
in
the
unit
you're
testing.
This
does
not
indicate
a
problem.
If
any
of
the
tests
fails,
check
the
connections
between
the
components
in
question,
as
described
in
the
paragraphs
below.
If
test
#2
fails,
check
all
the
connections
between
the
CPU,
Calvin,
Hobbes
0,
and
Hobbes
1.
Note
that
expected
observed
values
are
not
given
on
the
line
indicating
the
status
of
test
#2.
Instead,
a
PASS
or
FAIL
message
will
be
indicated
for
each
of
the
three
steps
in
test
#2.
NOTE:
The
Calvin
and
Hobbes
tests
are
interrelated,
and
are·
sequenced
from
the
least
significant
test
to
the
most
significant.
If
anyone
test
fails,
the
subsequent
tests
are
likely
to
fail
as
well.
In
this
case,
start
by
checking
the
components
related
to
the
first
test
that
failed.
If
a
malfunction
occurs,
repair
the
malfunction
and
run
the
Calvin
and
Hobbes
test
again.
It
is
likely
the
subsequent
tests
will
pass
when
retested.
In
general,
the
data
flow
through
these
components
is
the
following
sequence:
Sample
memory,
Calvin,
Hobbes
0,
Hobbes
1.
If
test
failures
occur,
check
the
connections
to
Calvin
before
checking
those
to
Hobbes
0,
and
Hobbes 0
before
Hobbes
1.
1
Figure
4.17
Calvin
and
Hobbes
Test
Checksum
is
different
in
Calvin
CRac
Connection
problem
between
CPU
and
Calvin
2.1
Calvin
Memory
Test
Fail
Connection
problem
between
CPU
and
Calvin
2.2
HObbe. 0 Memory
Te.t
rail
Connection
problem
between
CPU
and
Hobbes 0
36

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