Teac A-4300SX - Specifications and Service Data; Specifications; Service Data - Mechanical; Service Data - Electrical

2. SPECIFICATIONS AND SERVICE DATA
2-1 SPECIFICATIONS
Track System 1/4 track 2 channel stereophonic
1/4 track 1 channel monophonic
Heads Four; Erase, Record and Playback x 2
Reel Size 7” maximum
Tape Speed 7-1/2 ips and 3-3/4 ips
Motors 1 Dual-Speed Hysteresis Synchronous Capstan motor
2 Eddy Current Induction Reel motors
Input MIC: Specified; -60 dB (0.774 mV)/10k ohms
(Level and Impedance) Minimum; —70 dB (0.244 mV)
LINE: Specified; —8 dB (308 mV)/50k ohms
Minimum; —18 dB (97 mV)
DIN: Minimum; —38 dB (9.75 mV)
Output LINE: Specified; —8 dB (308 mV)/10k ohms
(Level and Impedance) Maximum; —2 dB (615 mV)
DIN: Maximum; —2 dB (615 mV)
Playback Equalization 7-1/2 ips: NAB 3180 yp sec, 50 wu sec
3-3/4 ips: NAB 3180 p sec, 90 pu sec
Bias Frequency 100k Hz (+5k Hz, push-pull oscillator)
Power Requirement 100, 117, 220, 240 V AC 50/60 Hz (General Export model)
117 V AC 60 Hz (U.S.A. and Canada Model)
Weight 23 kg (51 Ibs) net
Power Consumption 90 W
Dimensions (WHD) 440 x 488 x 216 mm (17-5/16” x 19-1/4” x 8-1/2”)
2-2 SERVICE DATA —MECHANICAL—
Tape Speed Deviation and Drift 3,000 Hz +30 Hz, within 15 Hz
Wow and Flutter Playback: 0.18% (RMS) at 7-1/2 ips
0.20% (RMS) at 3-3/4 ips
Overall: 0.20% (RMS) at 7-1/2 ips
0.25% (RMS) at 3-3/4 ips
Pinch Roller Pressure 2.4 kg (5.3 lbs)
Reel Torque TAKE-UP:
FWD 370 to 410 g-cm (5.2 to 5.7 oz-inch)
REV 430 to 470 g-cm (6.0 to 6.6 oz-inch)
BACK TENSION:
FWD 170 to.210 g.cm (2.4 to 2.9 oz-inch)
REV 180 to 220 g-cm (2.5 to 3.1 oz-inch)
Brake Torque 800 to 1,200 g-cm (11 to 17 oz-inch)
F.F/REW Time 160 seconds for 1,800 foot tape
2-3. SERVICE DATA —ELECTRICAL—
Frequency Response Refer to Frequency Response Limits charts in this manual
Signal-To-Noise Ratio Overall: 48 dB at 7-1/2 ips
46 dB at 3-3/4 ips
Erase Efficiency 68 dB at 1k Hz signal
(Measurement with input 10 dB higher than the Specified Input level)
Cross
Talk
Rejection
40
dB
adjacent
track
at
125
Hz
Stereo
Channel
Separation
50
dB
Channel
to
Channel
at
1k
Hz
Total
Harmonic
Distortion
Overall:
1.5%
at
1k
Hz
signal
NOTE:
As
a
result
of
continuing
changes
and
improvements
during
the
production
run,
minor
differences
may
be
found
between
early
and
later
machines.
Value
of
“dB”
in
this
manual
refers
to
0
dB
=
0.775
V.