Akai 4400D Service Manual

l.. SPECIFICATIONS
‘An asterisk next to a figure indicates the minimum guaranteed performance.
TRACK SYSTEM
4-track 2-channel stereo system.
REEL CAPACITY
Up to 7” zeel
TAPE SPEED
7-1/2 and 3-3/4 ips 22% (#3%)
WOW AND FLUTTER
Less than 0.15% (*0.22%) RMS at 7-1/2 ips
FREQUENCY RESPONSE AKAI SRT Tape 1
Less than 0.20% {*0.30%) RMS at 3-3/4 ips
30 to 23,000 Hz (*40 to 22,000 Hz) +3 dB at 7-1/2 ips
30 to 15,080 Hz (*40 to 13,000 Hz) +3 dB at 3-3/4 ips
Regular Tape | 30 to 20,000 Hz (*40 to 20,000 Hz) +3 dB at 7-1/2 ips
30 to 13,000 Hz ("40 to 11,000 Hz) +3 dB at 3-3/4 ips
SIGNAL TO NOISE RATIO ‘Better than 50 dB at 7-1/2 ips
|__Better than 48 dB at 3-3/4 ips
HUM AND NOISE (4400 only) "Less than 5 mV at minimum volume
DISTORTION Less than 1.5% (#2.0%) at 7-1/2 ips
Less than 2.5% at 3-3/4 ips
CROSS TALK Better than 70 dB (*60 dB) monaural
Better than 50 dB (745 aB) stereo
ERASE RATIO Better than 70 dB
INPUTS Mic input | 0.8 mV Impedance: 5 k2
Line input | 70 mV Impedance: 150 k®
Din input | _7mV
OUTPUTS Line output | 1.228V (4 #1 dB), using a 250 Hz “O” VU recorded tape
Din output | 0.4V
Speaker output (4400 only) | 16W total music power at 82
12W (*8W) continuous power at 8
BIAS FREQUENCY, 105 kHz £5%
BIAS LEAK a Less than ~30 VU
BIGH FREQUENCY DEVIATION Within 2 dB, using an 8,000 Hz 3-3/4 ips recosded tape at 7-1/2 ips
RECORDING CAPACITY 60 min, stereo recording, using a 1,200 ft. tape at 7-1/2 ips
FAST FORWARD AND REWIND TIME
152/190 sec., using a 1,200 ft. tape at 60/50 Hz
MOTOR
4-pole induction L-speed motor
Type: SSM-1
Revolutions: 1,800/1,500 rpm. at 60/50 Hz
HEADS
Recording Head | In-line 4-irack 2-channel recording head
| Type: P4-154
Gap: 1 micron
Impedance: 959 +15% at 1,000 Hz
Playback Head | Indine 4-track 2-channel playback head
Type: PA-150
| Gap: 1 micron
Impedance: 1,250 +15% at 1,000 Hz
Erase Head | In-line 4-track 2-channel erase head
Type: £4-200
Gap: 0.6 mm
_ i Impedance: 2002 +5% at 100 kz
TRANSISTORS = 2SCSSBLG(Q (D)...6 28C97i(2) @) (red)... 2
2SC871(E) ()...2 28C1098(L) (M).
ial LD3141...4 STK-Oi1 .. . 2 (4400 only)
DIODES a IN34A...2 TODC-1...1
= Wz-240...1 os
POWER SUPPLY
100 to 240V A.C., 50/60 Hz
120V A.C., 66 Hz for CSA/UL Models
220V A.C., $0 Hz for CEE Models
POWER CONSUMPTION
60w DECK: 35W
INSULATION RESISTANCE
More than 50 M2.
INSULATION DURABILITY
1,000V_ A.C, for more than 1 min. duration
DIMENSIONS
406(W) x 314(H) x 194(D) mm (15.9% « 12.4” x 7.6")
WEIGHT
33.7 kg (0.1 tbs.)
NOTE: Specifications subject to change without notice.

Akai 4400D Specifications

General

Brand	Akai
Model	4400D
Category	Tape Deck
Language	English