Akai GX-77 Service Manual

I. SPECIFICATIONS
TRACK SYSTEM
REEL CAPACITY
HEADS
MOTORS
TAPE SPEED
WOW & FLUTTER
TAPE WINDING TIME
FREQUENCY RESPONSE (Using a EE Tape)
SIGNAL TO NOISE RATIO
HARMONIC DISTORTION
INPUT
OUTPUT
DIN
DIMENSIONS
WEIGHT
POWER REQUIREMENTS
POWER CONSUMPTION
4 Track 2 Channel Stereo System
Up to 7” reel
GX head for Recording x 2
GX head for Playback x 2
Erase head x 2
FG Servo DC motor for capstan drive x 1
DC motor for reel drive x 2
19 cm/s + 0.8% (7-1/2 ips.)
9.5 cm/s + 1.0% (3-3/4 ips.)
Less than 0.03% WRMS, 0.07% DIN 45500 at 19 cm/s
Less than 0.04% WRMS, 0.10% DIN 45500 at 9.5 cm/s
80 sec. using 360 m (1200 ft.) tape
25 to 33,000 Hz + 3 dB (-20 VU) at 19 cm/s
25 to 26,000 Hz + 3 dB (0 VU) at 19 cm/s
25 to 25,000 Hz + 3 dB (-20 VU) at 9.5 cm/s
25 to 15,000 Hz + 3 dB (0 VU) at 9.5 cm/s
Better than 63 dB at 19 cm/s DIN 45500
Less than 0.5% at 19 cm/s
Required microphone impedance: 600 ohms
Line: 70 mV (input impedance 47 kohms)
Line: 0.775V at 0 VU
Required load impedance: more than 20 kohms
Phone: 1.3 mV/8 ohms at 0 VU
Input: 2.0 mV (input impedance 10 kohms)
Output: 0.3V
Required load impedance: more than 20 kohms
440(W) x 244(H) x 227(D) mm
(17.3 x 9.6 x 8.9’)
17.0 kg (37.5 Ibs)
100V, 50/60 Hz for Japan
120V, 60 Hz for USA and Canada
220V, 50 Hz for Europe except UK
240V, 50 Hz for UK and Australia
110/120/220/240V, 50/60 Hz switchable for the other countries
JPN 30W U/T, CSA, AAL SOW
* For improvement purposes, specifications and design are subject to change without notice.

Akai GX-77 Specifications

General

Track System	4-track, 2-channel stereo
Tape Speed	3 3/4 ips, 7 1/2 ips
Wow and Flutter	0.03% (19 cm/s)
Heads	3
Motors	3
Dimensions	440 x 244 x 358mm
Inputs	Line input (RCA)
Outputs	Line, Headphones