Sony srs 48 service manual

Page 1

SRS-48'

SERVICE MANUAL us Model

Canadian Model
AEP Model

E Model

Tourist Model

SPECIFICATIONS

Amplifier section
Power output 2.5 W +25 W
input impedance 150 ohms (at 1 kHz)
Speaker section
System Full-range, o 65 mm (25/8 in )

bass reflex enclosure
Impedance 12 ohms (OFF/DIRECT)
Rated Input power 5 W (OFF/DIRECT)
General
Power requirement DC 9 V, six size AA (R6) batteries (left speaker only)

Battery life (at 5 mw+5 mW output)
Approx. 15 hours with Sony batteries SUM-3 (NS)
Approx. 30 hours With Sony alkaline batteries AMS (N)

Dlmensions Approx. 104 x170 x 77 mm (w/h/d] (4V8 x 53/4 x 313 In.)
Weight Approx 900 g (31.7 oz.) (1 set). not incl batteries
Supplied accessories AC power adaptor (1)

AC plug adaptor (E, Tourist models)
Rubber cushions (4)

Optional accessories Plug adaptor P07236MS, Pct-2348.
Connecting cord RK-GISB

Design and specifications subject to change without notice,

Note
This appliance conlorms with EEC Directive smog/EEC regarding lntederence suppression

, ACTIVE SPEAKER SYSTEM

Page 2

3056

Power Sources

Using on House Current

\ / L (left) speaker
(rear)

i to DC lN jack

AC power adaptor (supplied)

-' to a wall outlet

When the AC power adaptor is connected to
the unit, internal batteries are automatically
disconnected.

Note on the AC power adaptor
Use only the supplied ACpower adaptor. Do
not use any other AC power adaptor.

Polarity of the plug W

Using on Batteries (not supplied)

Battery Installation

1

L (left) speaker
(rear)

6 size AA (R6)

Battery replacement

When the batteries are weak. the POWER
indicator will glow faintly and the playback
sound will become distorted or unstable. In this
case, replace all the batteries with new ones.
For battery life. see Specifications.

Ft (right) speaker L (left) speaker
(rear) (rear)

0 headphones Ck Discman, Walkman. etc.

(stereo minijack)

to an output jack of
the left speaker

When the speakers are connected to a
monaural jack of a radio, etc. the sound may
be outputed only from the left speaker.

To connect to a stereo phone-type
headphones jack

Use the optional PC-2348 plug adaptor or RK-
6138 connecting cord.

Listening to the Sound through the Built-in Amplifier
L (left) speaker

R (right) speaker

POWER indicator

1 Set the POWER switch to ON (5), Listening to the Sound without the Built-in
The POWER indicator will light up. Amplifier

2 Adjust the VOLUME control. Set the POWER switch to OFF/DIRECT. In this

3 AdjuSt the BALANCE control, case. the BALANCE control and the VOLUME
After listening, set the POWER switch 0 control do not operate. Adjust the volume with
OFF/DiRECT(l:t). the connected source equipment.

The POWER indicator will go 'off.

For Stability of the Speaker Unit

Attach the supplied rubber cushions on the
bottom or the side.

'IVHBNHE)
l NOLIDSS

'lenuetu uottonnsul

UJOJ} patoenxe s! uoiloes sgqL

\r.