Akai 1700 Service Manual

a
nnn
nee
a>
===
UIEEnEENnSnEDnSNnn
EE
nn
eS
MODEL
NUMBER:
WEIGHT (NET
IN CARTON):
DIMENSIONS
POWER RE-
QUIREMENTS:
POWER CON-
SUMPTION:
RECORDING
SYSTEM:
PLAYBACK
SYSTEM:
TAPE SPEED
TAPE SPEED
DEVIATION :
WOW AND
FLUTTER:
FAST FORWARD
AND REWIND
TIME:
FREQUENCY
RESPONSE:
DISTORTION :
SIGNAL-TO-
NOISE RATIO:
CROSS TALK
CHANNEL
SEPARATION :
I
SPECIFICATIONS
Akai Model 1700, portable 4-track
stereo tape recorder.
33 Ibs (15 kg) without accessories.
13-14”
(H)
x
13-44”
(W)
x
9”
(D)
case
closed.
A.C.
100, 110,
120,
200,
220
or
240
volts
interchangeable.
50-60
cycles.
80 VA.
Inline 4 track stereo and 4-track mon-
aural recording.
Inline
4-track
stereo,
monaural
play-
back.
Three speeds; 7-44” (19cm), 3-34” (9.5
cm) and 1-7” (4.75 cm) per second. (15”
per second with an optional accessory
capstan and pinch wheel.)
Less than +3 per cent at all tape
speeds.
Less than 0.2 % at 7-14 ips. R.M.S.
Less than 0.3 % at 3-% ips. R.M.S.
Less than 0.45 % at 1-% ips. R.M.S.
150 seconds for 1,200 ft. tape at 50 cy-
cles and 120 seconds at 60 cycles.
40 to 18,000 cps. at 7-44 ips:
3db. 80 to 12,000 cps. at 7-44 ips;
& 3db. 80 to 10,000 cps. at 3-34 ips;
£4db. 80 at 4,000 cps, at 1-7 ips.
Within 4% at 1,000cps, 0 VU (total
harmonic)
40 db below recorded level signal at all
speeds.
Within 55 db between each track.
Better than 80 db at 1,000 cps +3 VU.
POWER INPUT
LEVELS:
POWER
OUTPUT:
INSULATION
RESISTANCE;
INSULATION
YIELD
STRENGTH:
MONITORING
SYSTEM :
MOTOR
HEADS
MICROPHONE
USED:
SPEAKER
INCLUDED:
TUBES USED
SILICON
DIODE USED:
REELS USED
RECORDING
LEVEL
INDICATOR:
Microphone input level
—55 db (VR. max.) at 1,000 cps.
Phono and radio input level
—40 db (VR. max.) at 1,000 cps.
Pre-Amplifier output, 0.7V at 1,000
cps, impedance more than 100K ohms.
Main output, 34 dbm. up (in 600 ohms).
More than 50 MEG ohms.
More than one minute at A.C. 1,000 V.
With headphone during recording.
Condenser starting induction two-
speed motor.
1/100 HP. Power factor, 70 per cent.
2,900 to 1,450 r.p.m. at 50 cps,
3,480 to 1,740 r-p.m. at 60 cps.
Inline 4-track stereo/monaural record-
play head;
Impedance...3,500 ohms + 10% at
1,000 cps.
4-track erase head ;
000 ohms 415% at 90
Impedance...
ke.
Round dynamic microphone
Impedance...50,000 ohms
Sensitivity... —55 db.
Frequency Response...70 to 15,000
cps +10db.
Two 5’ x7” dynamic speakers,
Impedance...8 ohms
Allowable Input...6 watts
Frequency Response...80 to 12,000
cps, £10 db.
12AT7 x2, 6BM8 x2.
150D x2
Up to 7” reel
Horizontal, A-model VU meter.

Akai 1700 Specifications

General

Brand	Akai
Model	1700
Category	Tape Deck
Language	English