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Kurzweil K2000 - Specific Diagnostic Tests (v1.0); Option Board, Sine Wave, and Sound ROM Tests; Sound RAM Test Description

Kurzweil K2000
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SECTION 4
DlIoGS1_0.00c
12113/92
The
sample
screen
shown
in
Figure
5.17
indicates
that
there
are
2
Mb
of
RAM
installed
in
Bank
0
(two
1Mb
SIMMs).
The
test
is
currently
checking
Block
C
of
Bank
1.
Figure
4.18
-
Sound
RAN
Test
(currently
checkinq
Bank
1,
Block
C)
As
a
final
example,
suppose
a
pair
of
1Mb
SIMMs
is
installed
in
the
sockets
corresponding
to
Bank
0,
and
a
pair
of
4Mb
SIMMs
in
the
sockets
corresponding
to
Bank
1.
At
the
end
of
the
Sound
RAM
Test,
if
all
RAM
is
recognized,
the
display
will
show
"2.0M
Found"
in
Block
A
of
Bank
O.
It
would
also
show
"8.0M
Found"
in
Block
A
of
Bank
1.
All
other
blocks
would
indicate
"Nothing."
If
any
of
the
SIMMs
is
defective,
or
installed
improperly,
the
display
will
indicate
a
data
failure
or
address
failure
as
described
in
the
overview.
A
failure
may
also
indicate
a
faulty
connection
between
the
Sound
RAM
and
the
engine
board.
See
Figure
4.19
for
an
example
of
a
failure
message.
In
this
example,
Block
B
of
Bank
1
is
currently
being
tested.
There
is
no
RAM
instal·led
in
Bank
0,
and
so
far,
there
has
been
one
failure,
in
Block
A
of
Bank
1.
Figure
4.19
-
Sound
RAN
Test
Failures
4.21.16
1st
NVRAN
Test
This
memory
test
checks
the
function
of
the
backup
battery
power
to
the
non-
volatile
RAM
(NVRAM).
This
test
works
in
conjunction
with
the
2nd
NVRAM
test;
no
success
or
failure
will
be
indicated
at
the
completion
of
the
1st
NVRAM
test.
Instead,
the
tester
will
be
prompted
to
power
down
the
unit.
Wait
60
seconds
after
powering
down,
then
press
and
hold
the
1,
2,
and
3
buttons
while
powering
up
again.
Return
to
diagnostics
mode
and
select
and
execute
the
2nd
NVRAM
test.
If
a
failure
is
indicated,
power
is
not
being
39

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