Sansui AUD 11 Mk2 Service Manual

Page 1

AU Di m.

SERVICE MANUAL

7131)

INTEGRATED AMPLIFIER

sAusmAu-nml

Total harmonic IS 0

CAUTION

1. Parts identified by theA symbol on the schematic
diagram and the parts list are critical for safety.
Use only replacement parts that have critical
characteristics recommended by the manufacturer.

2. Make leakage-currentor resistance measurements
to determine that exposed parts are acceptably in-
sulated from the supply circuit before returning the
appliance to the customer.

JS NSUIELECTRIC cw.)

OSPECIFICATIONS

Power output

Min. RMS, both channels driven, from 10 to 20 000 Hz, w

no more than 0. 0028% total harmonic distortion
130 watts per channelrinto 8 ohms. '

Load impedance .8 ohms

on
less than O. 0028% at or be-
low rated min RMS power
outputr 7,
Intermodulation distortion
(60 Hz: 7 kHz= SMPTE method) -
. less than 0.0028% at rated
power output
Frequency response (at 1 watt)
Overall (from AUX) ..... DC to 300,000 Hz, +0 dB
-3 0 dB
RIAA curve deviation (DISQMM, 20 Hz to 20 kHz)
.............. +0.2 d8, -0.2 dB

lnputsen ty and impedance (at lrkHz)
DlSC-MCleGH 250 (iv/40 ohms
DlSC- MC- LOW 70 uV/3. 2 ohms

(Max. input capa Iity (LOW). 25 mV at l kHz, less
than 0. 01% total harmonic distortion)
DISC- MM ................... 2-. 5 mV/47 kilohms .
(Max. input capability; 200 mV at 1 kHz, less than
0. 01% total harmonic distortion) . '
DISC DA 150 mV/47 kilohms
AUX, TUN LAY- T 2
.150 mV/47 kilohms

/

Output level (1, 000 Hz)
TAPE REC-1, 2 ............ 150 mV into 47 kilohms
Signal to noise ratio (short-circuit, A-network) '
DlSC-MC.. . 80 dB
DISC MM. .90 dB
AUX TUNER, TAPE PLAY-,1 2
. .... .. 110 dB

. :10 dB at 50 Hz
.7125 HZ, 250 Hz
.110 dBrat 10kHz '
Tone selector . 3 kHz, 6kHZ
SUBSONIC... -3 dB at 16 Hz (6 dB/oct)
MUTlNC... .-20 d8
. t8 dB at 50 Hz
(VOLUME: -30 dB +6 dB at 10kHZ
position)
Power requirements
Power voltage... .. . 120/220/240V (50/60 HZ)
For U. S. A. & Canada
. IZOV'i60 HZ)
Power consumption.... 470 watts 560 VA Rated
700 watts Maximum
Dimensions ..................... 466 mm (18~3/8")'W
161 mm (63/8) H
431 mm (17") D

Weight 17 kg (37.4 lbs) net

19 kg (41.8 lbs) packed

- Design and spediicalions subject Io changes without narrator im.
provements.

Page 2

CAUTION

1. The symbols, UL, CSA, BS, UK, EU, AS and XX on the pans list and

the schematic diagram mean followings respectively.

UL ....................... Manufactured for U.S.A market.
(Underwriters Laboratories approved model.)

CSA ....... Manufactured for Canadian market.

BS, UK . Manufactured for United Kingdom market.

EU . . Manufactured for European market.

AS.. . Manufactured for Australian market.

XX.. ...... . Standard Version.

NON MARK. . Common Parts.

. Some printed circuit boards are not supplied as the assembled.

To separate these in this service manual, the stock Nos are not in-
dicated at the ends of the board names. However, the individual parts
on the circuit boards are provided by orders.

. Since some of capacitors and resistors are omitted from pans lists

in this service manual, refer to the Common Parts List for capacitors

& resistors, which was issued on February 1983.

4. Abbreviations in this sen/ice manual are as follows.

OAbbreviations List

C.R. : Carbon Resistor E.B. : Bi-Polar Electrolytic

S.R. : Solid Resistor Capacitor

Ce.R. : Cement Resistor E.B.L. : Low Leak Bi-Polar

M.R. : Metal Film Resistor Electrolytic Capacitor

F.R. : Fusing Resistor Ta.C. :Tantalum Capacitor

N.I.R. : Non-Inflammable Resistor F.C. : Film Capacitor

A.R. : Array Resistor M.P. : Metalized Paper Capacitor

CC. :Ceramic Capacitor F.C. : Polystyrene Capacitor

C.T. : Ceramic Capacitor. G.C. : Gimmic Capacitor
Temperature Compensation A.C. : Array Capacitor

E.C. : Electrolytic Capacitor V.R. : Variable Resistor

E.L. : Low Leak Electrolytic SVR : Semi Variable Resistor
Capacitor SW. : Switch