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X-3
1 SPECIFICATIONS AND SERVICE DATA
SPECIFICATIONS
Track System
4-Track Two-Channel Stereo
Head System
3 heads: erase, record, playback
Reel Size
7" and 5"
Tape Speed
19 cm/s (7-1/2 ips) and 9.5 cm/s (4-3/4 ips)
Inputs (level and impedance)
MIC:
Specified input level: -60 dB (0.775 mV)/10 kohms
Min. input level: —70 dB (245 nV)
LINE IN:
Specified input level: —12 dB (195 mV)/100 kohms
Min. input level: —22 dB (61.5 mV)
Outputs (level and impedance)
OUTPUT:
Specified output level: —5 dB (436 mV)/10 kohms
Max. OUTPUT level: +1 dB (0.869 V)
PHONES:
Specified OUTPUT level: —24 dB (48.9 mV)/8 ohms
Playback Equalization
19 cm/s:
3,180 us + 50 us (NAB)
9.5 cm/s:
3,180 us + 90 us (NAB)
Motors
1 DC Servo Capstan Motor
2 induction Reel Motor
Bias Frequency
100 kHz
Operating Position
Vertical, horizontal
Power Requirements
100/117/220/240 V AC, 50/60 Hz, 85 W
(General Export Model)
117 V AC, 60 Hz, 70 W (USA/Canada Model)
220 V AC, 50 Hz, 85 W (Europe Model)
240 V AC, 50 Hz, 85 W (UK/AUS Model)
Weight
14 kg (30-14/16 Ibs) net
9-1/8"
(231mm)
14°(355
mm)
12-7/8"
(326mm)
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16-1/8" (410mm)
Fig. 1-1
Dimensions
SERVICE DATA
MECHANICAL
Tape Speed Deviation
Tape Speed Drift
Wow and Flutter
3,000 Hz +30 Hz
20 Hz
Playback:
0.06% (WRMS), 0.12%(RMS) at 19 cm/s
0.10% (WRMS), 0.15% (RMS) at 9.5 cm/s
Record/Playback:
0.08% (WRMS) at 19 cm/s
0.15% (WRMS) at 9.5 cm/s
Pinch Roller Pressure
1.8 ~ 2.2 kg (3.97 ~ 4,85 (Ibs)
Reel Torque (Play mode)
Take-up
330 ~ 470 g-cm (4.58 ~ 6.53 oz-inch)
Back tension
220 ~ 280 9-cm (3.06 ~ 3.89 02-inch)
Brake Torque
Forward direction:
1000 ~ 1300 g-cm (13.9 ~ 18.1 oz-inch)
Reverse direction:
500 ~ 700 9-cm (6.94 ~9.72 oz-inch)
Left/right deviation:
200 g-cm (2.78 oz-inch)
Fast Winding Time
140 seconds or less for 550 m (1800 feet)
ELECTRICAL
Frequency Response
Playback:
19 cm/s
40 Hz +3,-3dB
9.5cm/s
40 Hz +3,-3dB
400 Hz OdB (Ref.)
400 Hz OdB (Ref.'
20 kHz
+3, —3 dB
14kHz +3,-3dB
Overall:
(BIAS sw: 1, EQ sw: 1)
19cm/s
40 Hz +3,—3dB
400 Hz 0 dB (Ref.)
16 kHz +3, -3dB
20kHz +3,—4dB
Signal to Noise Ratio
Playback:
49 dB min. at 19 cm/s
47 dB min. at 9.5 cm/s
47 dB min. at 19 cm/s
45 dB min. at 9.5 cm/s
Erase efficiency
70 dB min. at 1 kHz (measured with input
10 dB higher than the specified input level)
Channel Separation
50 dB min. at 1 kHz
Adjacent Track Crosstalk
40 dB min. at 125 Hz
Total Harmonic Distortion
1.5% or less at 1 kHz
Overall:
NOTES:
e Improvements may result in SPECIFICATIONS
AND SERVICE
DATA changes.
e Value of "dB" in the data refers to 0 dB (0.775 V), except where
specified.
CAUTION
Z\ Parts marked with this sign are safety critical components. They
must always be replaced with identical components — refer to the
TEAC parts list and ensure exact replacement.
9.5cm/s
40
Hz +3,—-3dB
400 Hz OdB (Ref.
10 kHz +3,—-3 dB
14 kHz +3,-4dB
7
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