Akai GX-230D Service Manual

Il. SPECIFICATIONS
An asterisk next to.a figure indicates the minimum guaranteed performance.
TRACK SYSTEM 4 track 2 channel stereo system
TAPE SPEED "7-1/2 and 3-3/4 ips. 0.7%
*7-1/2 ips. (19 cm/sec.) 1.0%
*3-3/4 ips. (9.5 cm/sec.) 1.5%
WOW & FLUTTER Less than 0.07% RMS. at 7-1/2 ips.
Less than 0.1% RMS. at 3-3/4 ips.
*Less than 0.10% at 7-1/2 ips. FWD
*Less than 0.12% at 7-1/2 ips. REV
*Less than 0.15% at 3-3/4 ips. FWD
*Less than 0.18% at 3-3/4 ips. REV
TOTAL.WOW & FLUTTER *Less than 0.12% at 7-1/2 ips.
*Less than 0.18% at 3-3/4 ips.
FREQUENCY RESPONSE 30 to 23,000 Hz +3 dB at 7-1/2 ips. (with Akai LN Tape)
30 to 19,000 Hz +3 dB at 3-3/4 ips. (with Akai LN Tape)
30 to 22,000 Hz +3 dB at 7-1/2 ips.
30 to 18,000 Hz +3 dB at 3-3/4 ips.
DISTORTION Less than 1.0%
TOTAL DISTORTION Less than 1.5% at 7-1/2 ips.
Less than 2.5% at 3-3/4 ips.
S/N RATIO Better than 54 dB
*Better than 50 dB
TOTAL S/N RATIO *Better than 45 dB
OUTPUT LINE 0.775V (0 £1 dB/O +1.5 dB, FWD/REV)
700 Hz “0” VU Prerecorded tape, output volume maximum.
DIN 0.5V
INPUT MIC More than 0.3 mV
LINE More than 70 mV
DIN More than 3 mV
(at “0” VU output, recording volume maximum).
RECORDING/PLAYBACK LEVEL 0.775V (0 1.5 dB)
CROSS TALK Better than 40 dB
(1,000 Hz +3 VU recording)
ERASE RATIO Better than 70 dB
(1,000 Hz +3 VU recording)
RECORDING BIAS FREQUENCY 100 +10 kHz
BIAS LEAK Better than —30 dB
HIGH FREQUENCY DEVIATION Within 3 dB
(8,000 Hz, 3-3/4 ips. tape at 7-1/2 ips.)
RECORDING TIME 90 minutes, stereo recording, using a 1,800 ft. tape at 7-1/2 ips.
FAST FORWARD AND REWIND TIME Approximately 120 seconds, using a 1,800 ft. tape at 50 Hz.
MOTOR MAIN MOTOR 2 speed A.C. Servo Control Outer Rotor Motor
Type: SCM2-24KJ, 4 pole
Revolutions: 615 r.p.m. at 7-1/2 ips.
(19 cm/sec.)
307.5 t.p.m. at 3-3/4 ips.
(9.5 cm/sec.)
REEL MOTOR Two 6-pole eddy current Outer Rotor Motors
Type: 24XO-MR
Revolutions: 930 r.p.m. at 50 Hz
1,120 r.p.m. at 60 Hz
HEAD COMBINATION RECORDING/ERASE HEAD
PLAYBACK HEAD
Type: RE4-6
Gap: Rec: 4u
Erase: Double Gap
Impedance:
Rec: 1,400 ohm +25% at 100 kHz
Erase: 130 ohm +7% at 100 kHz
D.C. Resistance: Rec: 5.5 ohm
Erase: 1.8 ohm
Type: P4-202
Gap: 1.74 0.54
Impedance: 1,400 ohm at 1 kHz
D.C. Resistance: 268 ohm

Akai GX-230D Specifications

General

Brand	Akai
Model	GX-230D
Category	Tape Deck
Language	English