Sansui AU D11 Service Manual

Page 1

SERVICE MANUAL

INTEGRATED AMPLIFIER

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ALI DH

SANSUI ELECTRIC CO., LTD.

0 SPECIFICATIONS

Power output
Min. RMS, both channels driven, from ID to 20,000 Hz, with
no more than 0.005%total harmonic distortion.
120 watts per channel into 8 ohms
Load impedance . . . . 8 ohms
Total harmonic distortion
............ less than 0.0059-ifll or below rated
min. RMS power output
Intermodulation distortion (60Hz : 7kHz = 4:l SMPTE
method) ......... less than 0.005% rated power
output
Frequency response (at l watt)
Overall (from AUX)
............ DC to 300,000Hz, +OdB, -3.0dB
RIAA curve deviation (PHONOMM, 20Hz to 20kHz)
............ +0.2dB. 0.2dB
Rise time ........ 0.8usec
Slew rate ........ : 250V/usec
Damping factor (lkHz, both channels driven)
............ ISO into 8 ohms
Input sensitivity and impedance (at lkHz)
PHONO-l. 2 (MC) . HIGH IOOuV/LOW 200pV/
l00 ohms
(Max. input capability: l3mV at lkHz, less than 0.01%
total harmonic distortion)
PHONO-I. 2 (MM) . 2,5mV/47 kilohms
(Max. input capability: 200mV at lkHz, less than 0.0l%
total harmonic distortion)
AUX. TUNER, TAPE PLAY-1,2
............ 250mV/27 kilohms
Output leveland impedance (LOOOHZ)
TAPE REC~l, 2. . . 250mV into 47 kilohms/600 ohms
Channel separation (lkHz, at rated pawer output)
PHONO-l, 2 (MC) . SOdB
PHONO-l, 2 (MM) . 60dB
AUX. TUNER, TAPE PLAY-1,2
............ 80d8
Signal to noise ratio (short-circuit, A-network)
PHONO-l, 2 (MC) . 74d8
PHONO-l, 2 (MM) . 90d8
AUX, TUNER. TAPE PLAY-1.2

............ l lOdB
Controls
BASS ........ *8dB, -~8d8 at SOHI
Tone selector . . . ISOHz. 300Hz
TREBLE ...... +8d8. --8dB at lSkHz
Tone selector . . . 3kHz.6kHz
Filter
16H] ......... -3dB at lez (6dB/oct)
20kHz ........ -3d8 at 20kHz (6dB/oct)
MUTING ...... 20dB
Power requirements
Power voltage . . . . I I0, I20. 220, 240V (SO/60Hz)
For U.S.A. & Canada

........... 120V (60Hz)
P0wer consumption

Rated consumption
........... 600 watts
Dimensions ....... 445mm (l7-9ll6") W
163mm (6-7/16") H
443mm (l7-I/2") 0
Weight .......... l7.5kg (38.5Ibs) net
l8.8kg (4I.4|bs) packed

Design and specifications subject to changes without

notice for improvements.

Page 2

1. BLOCK DIAGRAM

50. AMP
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2. ADJ USTM ENT
Notes: 1. Before adjusting, set the unit in horizontally.
2. Master Volume ...... Minimum
3. Room Temperature . . . 18°C ~ 28°C (65°F ~ 83°F)
4. For this adjustment, run the unit for more than 3 minutes
after the power is switched ON.
2-1. F3380 MC Head Amp Circuit Adjustment (See Fig. 2-2)
STEP SUBJECT MEASURE OUTPUT ADJUST ADJUST FOR REMARKS
1 DC 0V Adj. Voltage across hR4 hVRl , DC 0V Before turning 0N power
(Off Set Voltage, Adj.) getween Point ® and Point F-3380 switch, set hVRi center
(GND)) position.
2 DC 0V Adj. Voltage across hR4 hVRl , DC 0V
(on Set Voltage, Adi.) getween Point© and Point F-3380
(GN 0))