Sansui 150 Service Manual

Page 1

' II . 6..

FERVICE MANUAL

g
"2': -

4
4

4CHANNEL HIGH POWER AMPLIFIER

Salami.
SANSUI ELECTRIC (30., LTD.

OSPECIFICATIONS

Power output (1% total harmonic distortion)

Front amp 13 watts per channel into 4
ohms (30 to 20.000 Hzl
Rear amp ................... 32 watts per channel into 4

ohms (20 to 20.000 Hz)
Maximum power output (1% total harmonic distortion)

Front amp .................. 15 watts per channel into 4
ohms (l kHz)
Rear amp ................... 45 watts per channel into 4
ohms (l kHz)
Load impedance .............. 4 ohms
Total harmonic distortion ti kHz)
Front amp .................. less than 0.05% at 5 watts
Rear amp ................... less than 0.008% at 30 watts
Frequency response
Front amp ....... '. .......... 30 to 40,000 Hz 93 63
Rear amp ................... 20 to 50,000 Hz *9; d8
Input sensitivity and impedance (1 kHz)
LINE tNPUT ................ 100 mVItO kohm

BOOSTER INPUT ........ 10 ohm
Signal to noise ratio (A network, lHFA-ZOO)

Front amp .................. 85 d8
Rear amp ................... 90 d8
Controls (Rear amp)
BASS DRIVE ............... +9 dB at 100 Hz
HIGH CUT FILTER ...... --5 dB at 1 kHz
Power requirements ........ DC 12.0V
(Usable: 10.8~ t5.6Vl
Rated: l4.4V
negative ground
Current consumption 19A Maximum
Dimensions ..................... 200 mm {7-7/8') W

72 mm (2-718') H
217 mm [8-9ll6') D
Weight............................ 3:2 kg (7.1 lbs) net

Design and specifications subiect to changes without
notice for improvements.

Page 2

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

CAUTION

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

on the circuit boards are provided by orders.

2. Since some of capacitors and resistors are omitted from parts lists
in this service manual, refer to the Common Parts List for capacitors

& resistors, which was issued on February 1983.

3. Abbreviations in this service manual are as follows.

C.R.
S.R.
Ce.R.
M.R.
F.R.
N.l.R.
A.R.
C.C.
C.T.

E.C.
E.L.

EB.

- oAbbreviations List

: Carbon Resistor

: Solid Resistor

: Cement Resistor

: Metal Film Resistor

: Fusing Resistor

: Non-inflammable Resistor
: Array Resistor

: Ceramic Capacitor

: Ceramic Capacitor.

Temperature Compensation

: Electrolytic Capacitor
: Low Leak Electrolytic

Capacitor

: Bi-Polar Electrolytic

Capacitor

.SW

E.B.L.

Ta.C.
F.C.
M.P.
RC.
6.0.
AC.
V.R.
S.V.R.
Chip R. :
Chip C. :

: Low Leak Bi-Polar

Electrolytic Capacitor

: Tantalum Capacitor

: Film Capacitor

: Metalized Paper Capacitor
: Polystyrene Capacitor

: Gimmic Capacitor

: Array Capacitor

: Variable Resistor

: Semi Variable Resistor

' Switch

Chip Resistor
Chip Capacitor