Sansui AX 950 Service Manual

Page 1

IlSANSUI

A-X950

MINI COMPONENT SYSTEM

ISERVICE MANUAL

"7 -
Organization of System Component
System Name Amplifier Tuner CD Player Cassette Deck Speaker
MC-X950/X950L A~X950 T-X950/X950L CD-X950 D-X95C S-XQSO
CAUTION

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

2 Make leakagecurrent or resistance measurements to determine that exposed parts are acceptably Insulated from
the supply circuit belore returning the appliance to the customer.

NOTICE

1. Some printed circuit boards are not supplied assembled.
To separate these in this service manual, the stock numbers are
not indicated tor these boards. However, stock numbers tor
individual parts are indicated.
2. The symbols. EU. EG. lPT. SS and XX on the pans
list and the schematic diagram mean Ioilowinge respectively.
Manufactured tor European market.
.Menulactured for ER. Germany market
Manufactured tor Italy market.
Manufactured tor Saudi Arabian market
.Standard Version.

NON MARK Common Paris.

3. Since some capacitors and resistors are omitted lrom parts lists
in this service manual. rater to the Common Parts List for
capacitors and resistors. which was issued on June 1987.

4. Abbreviations in this Parts List are as loilows.

Specifications

Abbrevlallans List
C.R. :Carbon Resistor E.B.L : Low Leak Bi-Polar
SR. : Solid Resistor Electrolytic Capacitor
Ce.R. : Cement Resistor Tac. : Tantalum Capacitor
M.R. : Metal Film Resistor F.C. : Film Capacitor
F.R. : Fusing Resistor M.P. : Metalized Paper
N.I.R. : Non-inflammable capacitor
Resistor F.C. : Polystyrene
A.R. :Array Resistor Capacitor
0.0. : Ceramic Capacitor M.M.C. : Metalized Mylar
C.T. : Ceramic Capacitor, Capacitor
Temperature A.C. : Array Capacitor
Compensation V.Fl. : Variable Resistor
E.C. : Eiecrolytic Capacitor S.V.Ft. : Semi Variable
E.L. : Low Leak Electrolytic Resistor
Capacitor SW. : Switch
E.B. :Ei-Polar Electrolytic Chip R : Chip Resistor
Capacitor Chip C : chip Capacitor

Power output (Front channel)
Min. HMS. both channels driven, from 20 to 20,000 Hz. with no
more than 0.7% total harmonic distortion. 40 watts per channel
into 6 ohms. '

Power output ICenter channel)
Min. HMS, both channels driven, at 1 kHz, with no more than
1% total harmonic distortion. 12 watts per channel Into 6
ohms.

Power output (Rear channel)
Min. HMS, both channels driven. at 1 kHz, with no more than
1% total harmonic distortion. 12 watts per channel into 6
ohms.

Loud impedance ............................ 5~16 ohms

Frequency response (at 1 went
BS. LD, VCR... .10 to 50,000 Hz. +1 dB. -3 dB

.10 to 200 HZ. +1 dB. -3 dB

Signal to noise ratio [short-circuit, A-network)

BS. LD, VCR .............. . ................ 90 dB
TONE CONTROL
LOW. .: 12 dB I250Hzl
MID .. .112 dB (1 kHz)
HIGH ........................................... :12 dB I8 kHz)
DEUGHT BASS
DELIGHT BASS 1 .. .+12 dB (40 Hz)
DELIGHT BASS 2 .. .+12 dB (30 HZ)
IMASTER VOLUME -30 dB)

-to be continued.

Page 2

A-X950

Surround Section
Frequanw response (00st PRO LOGIC: WIDE)
FRONT, CENTER 50 to 15,000 Hz +OdB, -3dB

HEAR .............. ...50 to 6.000 H1 +0dB, -3dB
DIGITAL DELAY ndgustmant runge

DOLBY PRO LOGIC...................15to 30 ms

THEATER LOGIC, CONCERT LOGIC

. .,.3 to 51 ms

8 , NA, DISCO

................................................... 5 to 100 ms
Dimensions .................................... 270 mm (10-1 1/16') W

l 15 mm (4-9/16') H
340 mm (13-7/16') D
Weight ............................................ 6.8 kg (15.0 lbs) net

{Others}

.AC 120 V/220 V/240 (50/60 Hz)
.241 watts

Power requirements ..
Power consumption...

' Manufactured under license from Dolby Laboratories Licensing
Corporation. Additionally licensed under one or more of the
following patents: U,S. numbers 3,632,886. 3,746,792 and 3,959,
590; Canadian numbers 1,004,603 and 1,037,687.

'DOLBY and the double~D symbol (in) are trademarks of Dolby
Laboratories Licensing Corporation.

' Design and specifications subject to change: without notice
for improvements.

1. PIN LOCATION OF SYSTEM CONTROL CABLE

(Pin No. l is connected to the cable with a white line.)

System Control 1
A-X950 (Amplifier)

[1'2 3 4'5'6 7IBIQIIDIllIl2 l3l4115

l l l
123458789101ll213l4l5
A in
J I 0 $- -
fuf°iiwt1623m§$$
n D D D vow-.uo
U 0 O 0 ummwfimz
T-Xssofl'uner)

System Control 2
A-X950 (Amplifier)

'12 3 4 5 61718 9 ll] 112 IS

l23456789l0|ll2l3
t-
<
V§;:;?§§4?m?
>>>mmo-om < o
l+ < <

CD-X950 (CD Player)

System Control 3
A-x950 (Ampllfier)

1234567

N
-RA
O)

MIC
REC-L

A. GND 0)
AC 12V 01
AC 0V

REC
AC 12V «1

D-X950 (Cassette Deck)

System Control 4
T-X950 (Tuna)

11234156789}

l

A N
CI)
1:.
(n
C)
\1
co
to

SELECTOR

t!
. n
n.

A GND
D. GND
C
6
RESET

FB-L
N

+5.
558

D-X950 (Cassette Deck)