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Akai GX-747 dbx Service Manual

Akai GX-747 dbx
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ATTENTION
1. When placing an order for parts, be sure
to
list the parts no. model no., and description. There are instances in
which
if any
of
this information
is
omitted, parts cannot be shipped or the wrong parts
will
be delivered.
2. Please be careful
not
to make a mistake in the parts no.
If
the parts no.
is
in error, a part different from the
one
ordered
may
be
delivered.
3.
Because
parts
number
and
parts
unit
supply
in
the
Preliminary
Parts
List
may
be
partially
changed,
please
use
this
parts
list
for
all
future
reference.
HOW
TO
USE
THIS
PARTS
LIST
1.
This Parts List shows the parts that are considered necessary for repairs. Other parts, such
as
resistors and capacitors,
are shown
in
the
"Common List for Service Parts". Select and order such parts from the "Common List for Service
Parts".
2. The Recommended Spare Parts shows those parts
in
the Parts List which are considered particularly important for
service.
3. Parts
not
shown
in
the Parts List and "Common List for Service Parts"
will
not
be
supplied in principle.
4.
How to read list
a) Mechanism Block b)
P.C
Board Block
2.
HEAD
BASE
BLOCK
6.
SYS.
CON.
P.C
BOARD
BLOCK
REF.
NO.
PARTS
NO.
DESCRIPTION
REF.
NO
.
PARTS
NO.
DESCRIPTION
BH-T2023A320A
HEAD
BASE
BLOCK
GX-F66R
HP-H2206A010A
HEAD
R/P
PR4-8FU
C
ZS-477876
PAN20x03STL
CMT
ZS-536488
BID20x08STL
CMT
ZG-402895
CS
ANGLE
ADJUST
SPRING
\._
SP
(Service Parts) Classification
6-1
6-ICl
6-IC2
6-ICJ
6-IC4
6-TR1to4
BA-T2034A070A
PC
SYS
CON
BLK
GX-
F44R
EI-324536
IC
HD14049BP
EI-336801
EI-331661
EI-336725
ET-200985
IC
MB8841-564M
IC
SN7405N
IC
M54527P
TR
2SC2603
F,G
6-TR5to28
ET-554657
TR
2SA733A
P,Q
6-Dl
ED-318292
D
SILICON
H
1S2473T-77
T26
A small
"x"
indicates the inability to
6-D2to4
ED-308952
D
GERMA
v
tK34A-LR
F07
show
that
particular part in the Photo
or
6-DStol0
ED-318292
D
SILICON
H
1S2473T-71
T26
Illustration.
6-Xl
EI-318384
osc
X'TAL
NC-
lSC
individual parts index number in that
SP
(Service Parts) Classification
figure .
This reference numbers corresponds
This number corresponds with the
J Q
3
.
579545
MHz
1.------This
number corresponds with the Figure with symbol numbers
of
Schemaiic
Number Diagrams.
5.
Both the kind
of
part and installation position can
be
determined by the Parts Number. To determine where
1:1
parts
number
is
listed, utilize Parts Index at end
of
Parts List. It
is
necessary first
of
all
to find the Parts Number. This
can
be
accomplished by using the Reference Number listed at right
of
parts number
in
the Parts Index.
-
WARNING
&
INDICATES
SAFETY
CRITICAL
COMPONENTS
FOR
CONTINUED
SAFETY,
REPLACE
SAFETY
CRITICAL
COMPONENTS
ONLY
WITH
MANUF
ACTURE'S
RECOMMENDED
PARTS
AVERTISSEMENT
&
IL
· iNi:>IQUE LES COMPOSANTS CRITIQUES DE SECURITE. POUR MAINTENIR LE
DEC~E
DE SECURITE DE L'APPAREIL,
NE
REMPLACER QUE DES PIECES RECOMM_ANDEES PAR ·'LE
FABRICANT .
-----------------PARTS
LIST
GX-747dbx-----------------
56

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Akai GX-747 dbx Specifications

General IconGeneral
Track System4-track, 2-channel stereo
Reel Sizeup to 10.5 inch reel
TypeReel to Reel
Heads2 x erase
Motor1 x capstan, 2 x reel
Tape Speed9.5 cm/s, 19 cm/s
Wow and Flutter0.03% (19 cm/s)
Signal to Noise Ratio65dB
Input1 x line, 1 x microphone
Output1 x line
Dimensions440 x 480 x 260 mm

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