Akai GX-635D Service Manual

IX.
DC
RESISTANCE
OF
VARIOUS
COILS
Part
Designation
DC Resistance
Main Motor
SCM.2OO
Between
BLU-RED:
I l0 ohms
Between
YLW-BRN: 170
ohms
Pick-up Coil:
665
ohms
Reel Motor
24XO-TD
Between
BLU-RED:
30
ohms
Between
YLW-BRN: 157
ohms
Pinch
Roller
Plunger
I664TLT
700
ohms
t10%
Brake
Plunger,
REV
Plunger
124OTLT
600
ohms
110%
Pause
Plunger
TDS.OTA
696
slyns
r10%
Relay
FRL.264
659
6665
r
15%
Relay
BR2I I
1,290
ohms
110%
Relay
LAB2NS
I,750
ohms
t10%
Erase Head
E4-24r
2.1
ohms
Recordine
Head
R4-241
5.9 ohms
Playback
Head
P4-241
219
ohms
Chart-6
X. CLA.SSIFICATION
OF
VARIOUS
P.C
BOARDS
I.
P.C BOARD
TITLES
AND
IDENTIFICATION
NUMBERS
P.C
Board
Title
P.C Board
Number
Sys.
Con
P.C
Board
TH-I015
Pre Amp
P.C Board
TH-s00lA
Rec LED
P.C
Board
TH-50018
Volume
P.C
Board
TH-5002
Fuse
P.C Board
TH-2040
Operation
P.C
Board
(A)
TH-2041
Operation
P.C
Board
(B) TH-2042
Direction
P.C
Board
TH-2043
Reverse
P.C Board
TH-2044
Sensing
P.C Board
T:H-2045
Rec Mute
P.C
Board
TH-2046
Chart-7

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