Akai AX80 Service Manual

MODEL:
AX80 No.
AX80/1
DATE:
April
1985
001
Subject:
To improve
performance
To improve sound
quality,
Voice Control
IC
(IC106
-
806
in Voice
P.C.
Board)
CEM3372B has
been changed to
CEM3372C.
The program
of ROM
IC (IC4
in
CPU
P.C.
Board)
UPD2764D-I
has
also been
changed to
uPD2764d-K.
IC106
-
806
Part
No.
IC4
Part
No.
Old
CEM3372B EI-354184
UPD2764D-I
EI-354145
New CEM3372C EI-359630
UPD2764D-K
EI-359631
When one
of
Voice
Control
IC
is
changed from
Old type
to New
type and vise
versa,
it is
necessary
to replace
all Voice
Control
ICs
and ROM
IC
at
the
same
time.
Changed from
:
January
1985
Interchangeability
:
Not
interchangeable
The
following
shows how
to identify
old and
new
ICs.
8-TYPE-
INOCATING
LOT
NUM8ERS
INDICATING
TYPES
C
-TYPE
1
CEM
3372
1 CEM
3372
1
CEM 3372
T
8425
31608-01
T
8427
31608-01
X 3060C-01
1
-x-
k
1
<*
INDICATING
PROGRAM
VERSIONS.
-
1
-

Akai AX80 Specifications

General

Brand	Akai
Model	AX80
Category	Synthesizer
Language	English