Dual HS 140 Service Manual

Dual
Edition November 1974
Technical data
Dual HS 140
Service Manual
Turntable
HiFi-Automatic turntable Dual 1226 with Shure M 75 type D pick-
up-cartridge
Input
Tuner linear
Tape linear 300 mV at 470 kOhm
Frequency response
Measured with tone controls in midposition
25 Hz at 30 kHz ± 1.5 dB
30 Hz —30 kHz
Bandwidth (DIN 45 500)
Tone controls
Bass at 50 Hz
Treble at 15 kHz
Volume control
with switchable loudness characteristic
Balance control
control range
Mode switch
with loudspeaker-matrix for quadraphonic effect reproduction
Stereo-Mono-Switch
Signal-to-noise ratio
Phono
Rumble weighted signal-to-noise ratio
Rumble unweighted signal-to-noise ratio
Tuner and tape
related to NA --- 2 x 50 mW
related to rated output
Cross-Talk Attenuation (at 1000 Hz)
Phono
Tuner and tape
Output power (measured at 4 Ohm, distortion) <1 %
Music power
Continuous power (1 kHz)
300 mV at 470 kOhm
+ 14 dBat— 16 dB
+ 16 dB at — 16 dB
approx. 12 dB
>38 dB
>57 dB
>50 dB
>70 dB
>20 dB
>45 dB
2 x 15 W
2x 10W
Outputs
4 Loudspeaker jacks DIN 41 529
1 Coaxial jack 1/4 inch. for headphone
1 Connection jack for CD 4-decoder
1 Connection jack for matrix-decoder,
for tape connection in the input jack
Power consumption
Current consumption
Line voltage (resolderable)
Fuses
220, 240 V
110, 130, 150
Components
20 Silicon-transistors
4 Silicon-power transistors
6 Silicon-stabilizin-diodes
1 Silicon bridge rectifiers
2 Fuses 1 A slow-blow
to protect power stages
Dimensions
control unit with cover
Weight
control unit with cover
Loudspeakerbox CL 116
Transmission range
Resonance frequency
Nominal impedance
Power handling capacity
Music rating power
Minimum power required
(measured under room listening conditions)
Harmonie Distortion (DIN 45 500)
(at rated power 300 Hz — 18 kHz
Complement
1 special 130 mm broad band speaker system
Dimensions 230 x 363 x
Gross volume
Weight (each)
approx. 75 VA
approx. 320 mA
110, 130, 150, 220, 240 V
315 mA slow-blow
630 mA slow-blow
420 x 213 x 385 mm
10,7 kg.
60 Hz — 18 kHz
90 Hz
42
20 Watt
30 Watt
1
Watt
< 1 %
105 mm (W x H x D)
8.8 I
approx 3.2 kg.
Dual Gebrüder Stehdinger • 7742 St. GeorgeniSchwarzwald