Sansui AUX 111 Service Manual

Page 1

ll

SANSUI

iSERVICE MANUAL

AU-Xl ll

INTEGRATED AMPLIFIER

mm-um Mama I .m

CAUTION

criticalfor safety.

manufacturer.

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

2. Make leakage-current or resistance measurements to determine that exposed parts
are acceptably insulated fromthe supplycircuit before returning the appliance tothe

NOTICE

The symbols. UK, EU, EG, SS and XX on the parts list and the schematic diagram mean followings respectively.

customer.
UK. .Manufactured for United Kingdom market.
EU. .Manufactured for European market.

EG. Manufactured for F.R, Germany market.

Specifications

SS ......................... Manufactured for Saudi Arabian market.
XX ..... Standard Version.

NON MARK .......... Common Parts.

Power output
Min. RMS, both channels driven, from 20 to 20,000 Hz, With no
more than 0 03% total harmonic distortion.
'30 watts per channel into 8 ohms

40 watts per channel into 8 ohms.
Load impedance .................... . 4 to 16 ohms
Intermodulation distortion 160 Hz. 7 kHz : 4 l SMPTE method)
............................................... less than 0 03% at rated power
output
Frequency response (at 1 watt)
Overall (from CD) ,,.
FllAA curve devtatlon

. lOto70,,000Hz +l dB -3dB
HONO MM, 20 Hz to 20 kHz)
+0.5 dB, -.0 5 dB
Input sensitivity arid Impedance (at 1 kHz)
PHONO (MMlH . Z 5 mV/47 kohms
(Max. inputcapablltty: MO mV at 7 kHz, less than 0 l% total har-
monic distortion)
CD, TUNER, LlNE.. . . ... ...
TAPE l/DAT, TAPE- Z/ADAPTOH...
Output level (1, 000 Hz)
TAPE/REC. .

150 mV/35 kohrns
150 mV/35 kohrns

.. 150 mV into 47 kohrns

Signal to noise ratio (short-circuit, A-networkl

PHONO (MMl.

co, TUNER, LINE, .

Controls and Filter
BASS , . ..
IREBLE.. , ,
LOUDNESS ..

(VOLUME -30 asfiasmm'

Power requirements
Power consumption

Dimensions

Weight. . .

78 dB
105 dB

, .18 dB at 50 H2
,.:8 dB at 10 kHz

+6 dB at 50 Hz
+6 dB at l0 kHz

. AC 120 V/220 V/24O V,

50/60 Hz

. l65 watts

270 watts MaXimum

. 430 mm (16715/16") W

125mmi4715/l6')H
286 mm i11-5/l6) D

.. 5.0 kg 111.0 lbsl net

5,0kg (13,2 lbs) packed

" Design and specifications subject to change without notice for

improvements.
a

Due to local laws and regulations, this unit sold in some areas

are not equipped with variable voltage selectors.

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A X111

Note to use Service Manual

1. Some printed circuit boards are not supplied assembled.
To separate these in this service manual, the stock
numbers are not indicated for these boards. However,
stock numbers for individual parts are indicated,

2. Since some capacitors and resistors are omitted from
parts lists in this service manual, refer to the Common
Parts List for capacitors and resistors, which was issued
on June 1987.

3. Abbreviations in this service manual are as follows.

1. BLOCK DIAGRAM

OOZ
m.v

HWWWWOOPWZ
mr-O-l 11' - ,-
....O?Jtm;1;U-33

n)

smozoeobm
. . _r

3.73:.
.0

wws»
m

s

-Abbreviations List

: Nonrlnflammable Resistor

: Carbon Resistor

: Cement Resistor

: Metal Film Resistor

: Fusing Resistor

: Array Resistor

: Ceramic Capacitor

: Ceramic Capacitor. Temperature Compensation
: Electrolytic Capacitor

: Low Leak Electrolytic Capacitor
: Bi-Polar Electrolytic Capacitor

: Low Leak Bi»Polar Electrolytic Capacitor
: Tantalum Capacitor

: Film Capacitor

: Metalized Paper Capacitor

: Polystyrene Capacitor

: Metalized Mylar Capacitor

: Array Capacitor

: Variable Resistor

: Semi Variable Resistor

: Switdi

0520
E

Q-flfli TAPE-1 CD DIRECT

Balance VR

Protector

mu 1
m2 rm
3

Power Amp. Phone

J1
0 _J Jock

2
L_J §L2+-33P
lLR1 SYSTEM A

J,

NR3": 1 2 +
Boss "-1 >-*SP

SYSTEM B

DIR-76 Treble 7;,

Tone Control