Akai AX80 Service Manual page 12

VII.
ADJUSTMENT PROCEDURE
FOR VOICE PCB
D
TP2 TP3 TP4
TP5
OFF-SET
AD
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0
VRI02 VR202
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R302 VR<02 VRSO<
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VB602
VR702
VR802
SAWTOOTH WAVE
LEVEL AOJ
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PI
VRI
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P
1
—
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VRIOI
VR20I VR30I
RESONANCE ADJ
—
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1 1
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VR40I VR50I VR60I VR70I VR80I
•
FRONT
VOICE
PCB LI003A50IO
XALL
THE
IC«
(
ICI06to806: CEM 3372
)
Fig.
7-1
7-1.
PREPARATION FOR THE ADJUSTMENT
*
It is
recommended
to
save
A &
B bank
data onto
a cas-
sett
tape,
and
verify
A &
B bank
data.
*
It is
requied
to
warm
the unit
up
for 5
minuits before
the
adjustment of
the
resonance frequency
for
each
voice.
* Make
sure
to
load
A &
B
bank
data
from
the
cassette
tape
after
repair
or/and adjustment was
completed.
7-2.
OFFSET
ADJUSTMENT (ADJUSTMENT OF
SAWTOOTH WAVE
LEVEL
ON
DCO-2)
1)
Turn on
the unit,
then the unit
will
be
initialized in
the PI (Preset
l)mode.
2) Set
the unit
to Edit
mode
and
set
the
parameters
as
follows.
Parameter
Button
Function Display Data
6
OSC-1
LEVEL
0
7
FREQ
RANGE
16
8
DETUNE
50
9
WAVE
1
10
CROSS
MOD
0
11
EG DEPTH
50
13
OSC-2
LEVEL
99
14
CUT
OFF FREQ
99
15
RESONANCE
0
16
EG DEPTH
50
17
KEY FOLLOW
0
18
KEY
VELOCITY
0
19
HPF
0
24
LFO SELECT
2
33
LFO
0
30
EG
SELECT
1
25
ATTACK
0
26
DECAY
0
27
SUSTAIN
99
28
RELEASE
0
31
KEY
VELOCITY
0
32
LEVEL
99
SERVICE
MANUAL
AX80
11