Akai GX-635D Service Manual

(2)
PRE
AMP
P.C
Svmbol
Parts
No.
BOARD
(TH-s0014)
Description
Pre Amp P.C
Board
Comp.
GX-635D
(U/T)
(JPN,
CSA,
AAL)
Pre Amp
P.C
Board
Comp.
GX.63sD
(CEE)
(UK)
IC LA4I7O
Ttansistor
2SC45 8LG(D)
Transistor
2SC45
8(D)
Transistor
2SC945L(P)
Transistor
2SC45 8LG(D)
Transistor
2SC945L(P)
FET
2SK68(M)
Transistor
2SC2 I 30(H)
Transistor
2S('c45
L(QXP)
Transistor
2SD57l
(K)
Transistor 2SC94sL(QXP)
Germanium Diode
BLOCK
Schematic
45 I 305
45t29
45'l-26
45185
45129
15185
45'12
14
15 l-317
45185
15 I 218
15-1-85
(2)-r
t)\-)
BA30 8 27 5
8A308296
(2)-IC1 EI306141
(2)-TR
I to3
F,T352146
(2
)-TR4
ET308
97 s
(2)-TRs,6
ET638s04
(2>TR7to9 F'T352r46
(2)-TRl0
ETó38s04
(2)-TRl
r
ET308978
(2)-TR
12 ET31 I
33ó
(2)-TRl3to15
ET639437
(2)-TRl6 ET208012
(2
)-TR
f
7to23 E^f
639437
(2\-D1
,2
ED3089s2
(2
)-D3
(2)-D4
(2
)-Ds
to8
(2)-Lr
(2)-L2
(2)-L3
(2)-L4
(2)-Ls,6
(2)J
1
(2)-12
(2
)-J
3
(2)-J3
(2)-swl
(2)-sw2
(2)-sw3
(2
)-Sw4
(2)-sws
(2)-sw6
(2
)-vR
l,2
(2)-vR3,4
(2)-vRs
ED5óO9l
3
EO30
r 448
EO30
I
467
EO308982
EO308974
EO3
r 3608
EJ305
629
EJ305
7 3
9
EJ308
986
EJ
3069
8
s
ES301
435
ES308
984
ES308
98
3
ES30
l 436
ES301 7
1 5
ES306
2 92
EV30s
637
EV305
636
EV306989
(2
)-vR6
EV301437
(2)-vR7
EV308966
(2)-Pr,2
8J249333
(2)-P3,4
E.J249366
(2)-RL1
EP308973
(2)-R82
8R30629e
p1-rct,z
ECss8202
(2)-cl
EC3138ó8
(2)-c3
EC3Os6'77
(2)-cl
s
EC313624
(2)-c2O
EC30642o
(2)-C22
EC313868
(2)-c2s
EC308990
(2)-cZ9
EC3O'671
(2)-c29 ECs
1 670 l
(Stop.
Type)
1K34A-LR
ED5óO9t
3
Silicon
Diode
| 524'73
VE'.
ED308952
Germanium
Diode
(Stop.
Type)
lK34A-LR
Silicon Diode
1S2473
VE
Inductor
45H-044 1MH
Ferri
Inductor
RX-9P
3.3MH(J)
Inductor
22MH
OSC Coil 49H-364
Ferri
Inductor
FL9H
2'7ot!H(J)
Headphone Jack JL3,\
Mic
Jack
JU2
4P PIN Jack
(U/T,
JPN,
CSA,
AAL)
4P PIN Jack (CEE,
UK)
Slide SW. CL-210E
Push
SW.
SUF44
Push
SW.
J-K2O23
Slide SW. CL-2O6E
Slide
SW. SSB022l4
Leaf
SW. BSW-86
Semi-fixed/Vol. D8
Axial Type 10 kB
Semi-fixed/Vol. D8
Axial Type 50 kB
Semi-fixed/Vol. D8
Axial Type t kB
45 3-47
45323
45347
45323
23-r 277
23 1
275
23-l-300
23150
23 | 314
3l-2
90
31"2
89
3l-5-145
31 5 142
25-3-136
25-5-302
25
5 305
25
3 135
25
3 t27
25-10 3l
36 l0 273
36 r0
273
36-10-273
12
|
104
42-l
101
17 230
Single Axial
2
Throw Vol.
GM70R-7
l
s 10 kBx2
36-22-28
Semi-fixed/Vol. D8
Axial Type
30
kB
36 l0
273
Micro
Connector 4P
Plug
w-P0504
Micro
Connector 7P
Plug
w-P0s07
Relay
LAB2NS
Metal Oxide Film/R.
(Homing
Type)
2W 390
ohms(J)
35-11
22
Trimmer/C. TM-80A
8OPF
21
2-26
Elect./C. (LL,
Homing)
t apF(M)
I 6WV
24 20'19
Styrol/C.2ooPF(K)
sOWV 24-11
14
Elect./C. (LL,
Homing)
22pF(M) 2
sWV
24 20'rg
Styrol/C.
(Homing
Type)
7 5 OPF(J) 5 OWV 24-rr
t4
Elect/C.
(LL,
Homing)
lQpF(M)
1óWV 21 20
rg
Styrol/C.
(Homing
Type)
470PI,-(K)
sOWV
24'1t 14
Styrol/C.
(Homing
Type)
200PF(K) soWV
(R)
24 r1-r1
Styrol/C.
(Vert.
Type)
200PF(K)
soWV
(L)
24 r'3
When ordering
parts,
Please
describe
Parts
Number,
Description,
and Model Number
in detail.
59
Symbol
No.
(2
)-c3
o
(2
)-c3
0
(2)-c32
(2
)-C3
6
(2)-c48
Description
Schematic
No.
Styrol/C.
(Homing
Type)
470PF(J) soWV
(R) 21 tl 11
Styrol/C.
(Vert.
Type)
470PI.(J) sOWV
(L)
2411 3
Styrol/C.
(Homing
Type)
200PF(K) sOWV
241r11
Styrol/C.
(Homing
Type)
I00PF(J) 5OWV
24-'L-11
Styrol/C.
(Vert.
Type)
l5oPF(J)
sooWV
24 lt
3
(TH-s002)
BLOCK
Descriptio
n
Double
Axial
2
Throw
Vol.
DM20R 50 kAx2 36'18-9
(3)
VOL. P.C
BOARD
svmbol
Parts
No.
(3)-VR
l,2 EV3o89es
(4)
REC, LED P.C
SYmbol
Parts
No.
Parts
No.
EC3069
8 7
IlC405
8
98
EC
30 5 677
EC306438
Frc3l326s
Schenatic
BOARD
(TH-5001B)
BLOCK
Description
schmatic
LED GL-3ARI
15
15 14
(4)-D1,2
ED249377

Akai GX-635D Specifications

General

Track system	4-track, 2-channel stereo
Total Harmonic Distortion	0.8%
Outputs	0.775V (line)
Type	Reel to Reel
Heads	3 heads
Motor	2 x reel, 1 x capstan
Reel size	up to 10.5 inch reel
Wow and flutter	0.06% (7 1⁄2 ips)
Frequency response	30Hz to 26kHz (7 1/2 ips)
Signal to Noise Ratio	62dB
Dimensions	440 x 440 x 240 mm (17.3 x 17.3 x 9.4 inches)
Output Voltage	0.775V
Tape speeds	3 3/4 ips, 7 1/2 ips