Akai GX-747 dbx Service Manual page 45

Stereo tape deck
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2) Power Supply
&
Syscon
P.C
Board
Tl009A2570
(4ED), Detector
(A) P.C Board
T1009D2540
,
Detector (B) P.C
Board
Tl009D2520,
Switch
P.C Board Tl009D2500,
Terminal P.C
Board NE2230 and
IREEL MOTOR
,o,.n==
~
~
LEF
T
~'!IGHT
1i i 1
903
24X0-T0
M!i02 24X
0-T0
dBx
NR PCB
I
2
!
WHTICROSS
BLU
I
2
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i -===-=-'<,_,,
'J
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l
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1
b._
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.fl
--
~fJlt
4
~
c,o
____,,.,
-----
I
A
.C
110
UII
I
I
---
LOCATION OF IC
TR
I
A4
TR2
B4
TR3
F4
TR4 to
6
F3
TR?
to
10
F4
TR
I
I
,
12
A3
TFll3 to
16
A4
TRI?
fo
19 DI
TR20
D2
TR21
01
TR22. 23
02
TR24
F2
TR25
8
1
TR26,27
F2
TR28
FI
TR29
F2
TR30
,31
Fl
T R34
CI
T
R35
04
TR36
E4
TR37
D2
TR38
to40 C4
TR4l
04
TR42
C4
TR43, 44
03
TR45
t
o50 02
TR51
D4
TR52,53
F
l
TR54,55
O!
TR57
0 I
TR58
to
61
E3
TR62
TO
65 03
AND TRANS
I
STOR
TR66
TR67
to
72
TR73,74
TR75
,
76
TR77 lo
82
TR83,84
TR85 lo 87
TR89
lo 9
1
TR93
to
95
TR96,
97
TR98,99
TR
IOO
IC I
IC2
!C3
,4
IC5, 6
IC?, 8
0 I
EI
E2
F2
E3
F3
E3
E2
D2
D4
4
E
I
A4
E2
E4
EI
FI
D3
n\
E C
8
2SA733
2SC945L
"
,!,.
TR'IJ
--ii-
,,.,.,
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II.
I
V
-+-
(f
~
8 C
E
2SC2130
m
____, , . . ,
---<--
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E
!
2SD571
2 SD79
4
2?860
5
WARNING·:
4,1ND!CATES SAFETY CRITICAL
COMPON~_
N
TS.
FOR CONTINUED
SAFETY,
REPL
ACE
SAFET
Y
CRITICAL
COM
PONENTS
ONLY
WITH
MAN
UFACTURER'S
RECOMMENDED PARTS
AVER
TISSEME
NT:
~IL INDIOU
LES
COMPOSANTS CR!TIOUES DE sLIRETE
.
POUR
MAINTEN
IR
L
E
DEGRE OC SEC UR
I TE
DE L'
APPAREIL NE REMPLACER
LES
CONPOSANTS
CONT
LE
fONCTrONNE MENT EST
CRIT!QUE POUR
LA
SECURITE
QUE
PAR
DES
PIECES
RECOMMAN
DEES PAR
L
E
FABRICANT
·
~
BCE
2SC2336
REMOCON
PCB
TI009D2420
© ►-
-,----·
~'-'-'-'-"--'"----.
©•-
-,---
t
:I
,©t
__ J¾-
1
__
·
W!-lT/BLU
©t_~
DETECTOR{AI PCB
TI009D2540
OPERATION
PCB
E
m
u
0.
0.
~
F
PO
WER
SUPPLY
El SYSCON PCB
TI009A2570
Remocon
P.C
Board Tl009D2420
N
O
N
C
POWER
LOC
K
RELEASE
MOT
OR
POWER LOCK
RELEASE
MOTOR
TERMINAL PCB
NE-2230
I
CUE/RVW
I
~iEij~~~=1:~itIJ'
$
Vi
i
i
SVIITCH PCB
T 1009D2500
TRl
,
3106
,9,11,!4,IGto
22
}
35
lo 38, 4 1, 45, 46, 5
1,5
2, 54, 55
--2S0945U P
,OJ
73,74,751084,89
to
91
,
97,98
T R 2 3 - - - - - - - - - -
-----2SC9
45
U Ql
TR39,40,66
t
o72-
--,--
-----2SC945L{K,P
l
TR7,8,1
0
,15,43
,4
4,5B
1
065'"\
_____ -2SA7
33A
!
p
Q)
85
to
87, 93
to
96
j
·
'
TR
2,12
,
13 - - - -
- - - -
-----2SCl061(8,Cl
TR24
to27,34,
53,99,IOO
- - - -
-
2
SC21
30 (Hl
TR28
to
31
, 4
2
- - - - -
- -
-
- - -
2SC21
30(G,H)
TR47,47---------
- - - - - 2
SB60
5(K,U
TR49
, 5 0 - - - - - - - -
- -
- - -
2S
057
1
(K
,L
)
TR57 - - - - - - - - - - - -
-2S
D794(P,O)
-----------------------------------SERVICEMANUALGX-7 4 7 d b x - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
44

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