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MODEL:
AX-
80
No*
AX-80/1
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.
4
Changed from
:
January
1985
Interchangeability
:
Not interchangeable
The following shows how
to
identify old and new
ICs.
-
—
—
•S
-TYPE
-
cm
3372
8425
31608-0!
CEM 3372
8427
31608-01
C-TYPE
CEM 3372
3060C-0I
_J
INOCATING
LOT
NUM8ERS
INDICATING
TYPES
AX-SCK
-4
INDICATING
PROGRAM
VERSIONS.
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