Korg wavestation Service Manual page 34

3.
Confirm
the values
of ASS-1,
ASS-2,
and DAMPER are indicated in the
LCD.
Then,
connect EXP-2
to
ASS-1 and
ASS-2, DS-1 or PS-1 to DAMPER.
Confirm
that each value changes smoothly when ASS-1 and ASS-2 are
operated, the value becomes
127
when each
pedal
is
pressed fully and that
it
becomes
when each pedal
is released.
Confirm that the value becomes
127
when DAMPER
is ON
and that
it
becomes
when DAMPER
is OFF.
If
this test
is
N. G.
,
check the VRs
(
Vector Position and Wheels
)
and the
circuit of SCAN
(
M37450M4
).
If
this test
is O.K., proceed
to the next.
If
you need to check
again, press MARK/ JUMP
SW and select any test
with
10
KEY
SWs.
«
FINISHING THE DIAGNOSTIC TEST
))
1.
Pull out the PCM card
(
MSC-01
)
and the test card
(
DIAG.
CARD
).
2.
Press EXIT
SW.
With these operations, the product's memory
is
initialized and the program
returns to the normal
mode.
After finishing this
test,
load the data which
was saved
first.
Fig.
1
MDE Test Waveform
Fig.
2
TG88/DF88 Test Waveform
«
THE CONTENT OF THE MIDI MESSAGE FOR THE TEST
))
The
MIDI message
for the test
is
defined as one
of the MIDI
SYSTEM EXCLUSIVE
MESSAGE.
FOh
"
to point out EXCLUSIVE
42h
"
to point out KORG
ID
22h
"
to
point out JIG
ID
for
KORG'
s
factory
test
**h
"
to
point out the product's
ID
(
"
28h
"
in case of WS1
)
After these
4
byte data are transmitted,
1
byte data which points out the
status for the test
is transmitted.
If
the status has the
data,
n byte data
are transmitted.
Finally,
"
F7h
"
which points
out EOX
is
transmitted and one
MIDI MESSAGE
for the test consists.
36