Sony SRS D101 Service Manual

SRS-D101

SERVICE MANUAL

Ver 1.1 2002. 11

SPECIFICATIONS

Front speakers

Speaker system Full range, magnetically shielded
Speaker units 3.9 cm, cone type
Enclosure type Bass reflex
Impedance 6 Ω
Power handling capacity 3 watts
Maximum input power 6 watts
Sensitivity level 81 dB (1 W, 1 m)
Dimensions (w/h/d) 54 × 115 × 74 mm
Mass 210 g (Lch), 160 g (Rch)
Cord length 2 m
Input impedance 4.7 kΩ (at 1 kHz)
Input LINE IN 1, 2

Subwoofer

Speaker system
Speaker unit 9 cm, cone type
Enclosure type Bass reflex
Impedance 6 Ω
Power handling capacity 14 watts
Maximum input power 28 watts
Sensitivity level 80 db (1 W, 1 m)
Dimensions (w/h/d) 194 × 210 × 239 mm
Mass 2,400 g

Amplifier section

Rated output:

Woofer section 14 W <
Mid and high range section
Total

Active subwoofer, magnetically shielded

10 % T.H.D., 100 Hz, 6 Ω
3 W + 3 W <
20 W

10 % T.H.D., 1 kHz, 6 Ω

>

>

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

General

Power consumptions 20 W
Cord length 2 m (adaptor cable)

Where purchased Operating voltage
U.S.A./Canada 120 V AC, 60 Hz
European countries 220-230 V AC, 50Hz
Other countries •110 – 120 V AC, 50/60Hz

•220 – 230 V AC, 50 Hz

Supplied accessories

Audio connecting cord (1)

Design and specifications are subject to change
without notice.

9-873-998-02

2002K1600-1

© 2002.11

ACTIVE SPEAKER SYSTEM

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

SRS-D101

SAFETY CHECK-OUT

After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.

2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)

To Exposed Metal

Parts on Set

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

Notes on chip component replacement

•Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

AC

0.15 µF

Fig. A. Using an A C v oltmeter to check A C leakage.

1.5 kΩ

Earth Ground

Voltmeter
(0.75 V)

2

SECTION 1

GENERAL

SRS-D101

This section is extracted from
instruction manual.

A

B

Front (Right)/Avant (droite)
Vorne (rechts)/Parte frontal (derecha)

Subwoofer
Caisson de grave
Tiefsttonlautsprecher
Potenciación de graves

to Mono Mini jack
vers la mini prise mono
an Monominibuchse
a mini toma mono

Note PC
Front (Left)
Avant (gauche)
Vorne (links)
Parte frontal (izquierda)

OPERATE

ON
OFF

VOLUME

MIN

MAX

BASS

MIN MAX

PC Note

Notebook-PC

Portátil

Front (Left)/Avant (gauche)
Vorne (links)/Parte frontal (izquierda)

INPUT

1

2

to 8 pin Din jack
vers la prise Din à 8 broches
an 8 polige DIN-Buchse
a conector DIN de 8 patillas

Front (Right)
Avant (droite)
Vorne (rechts)
Parte frontal (derecha)

SRS-D101

ACTIVE SPEAKER SYSTEM

Subwoofer
Caisson de grave
Tiefsttonlautsprecher
Potenciación de graves

*

SRS-D101

ACTIVE SPEAKER SYSTEM

OFF ON

R OUT

L OUT

PC/Ordinateur
PC/PC

CD Walkman
Walkman CD
CD-Walkman
CD Walkman

to wall outlet
vers la prise murale
an eine Netzsteckdose
a la toma de corriente

*This switch is only for

European models.
Cet interrupteur ne concerne
que les modèles européens.
Dieser Schalter ist nur für
Modelle für Europa.
Este interruptor sólo está
destinado a los modelos
europeos.

C Incorrect connection/Raccordement incorrect/Falscher Anschluß/

Conexión incorrecta

Head phone output, etc.
Sortie de casque d’écoute, etc.
Kopfhörerausgang usw.
Salida de auricular, etc.

USB, etc.
Port USB, etc.
USB usw.
USB, etc.

Head phone output, etc.
Sortie de casque d’écoute, etc.
Kopfhörerausgang usw.
Salida de auricular, etc.

INPUT

1

2

R OUT

L OUT

Network Walkman, etc./Network
Walkman, etc./Network Walkman
usw./Network Walkman, etc.

D

POWER
(OPERATE for European model)
(OPERATE pour le modèle européen)

POWER

ON
OFF

VOLUME

MIN

BASS

MIN MAX

MAX

(OPERATE beim Modell für Europa)
(OPERATE para el modelo europeo)

VOLUME

BASS

Precautions

On safety

The nameplate indicating operating voltage, power
consumption, etc. is located on the bottom exterior.

Before operating the system, be sure that the operating voltage

•
of the system is identical with that of your local power supply.

Where purchased Operating voltage
U.S.A./Canada 120 V AC, 60 Hz
European countries 220-230 V AC, 50Hz
Other countries •110 – 120 V AC, 50/60Hz

• 220 – 230 V AC, 50 Hz

The unit is not disconnected from the AC power source (mains)

•
as long as it is connected to the wall outlet, even if the unit
itself has been turned off.

•

Unplug the system from the wall outlet if it is not to be used for
an extended period of time. To disconnect the cord, pull the
cord by grasping the plug. Never pull the cord itself.

•

Should any liquid or solid object fall into the system, unplug
the system’s power cord and have the system checked by
qualified personnel before operating it any further.

•

The AC power cord should be changed only at a qualified
service shop.

•

For efficient heat dissipation, ensure there is sufficient space to
the rear of the woofer. Also, avoid placing objects on the unit.

On operation

Do not drive the speaker system with a continuous wattage

•
exceeding the maximum input power of the system.

•

Contact between bare speaker wires at the speaker terminals
may result in a short-circuit.

•

Before connecting, turn off the Speaker system, the PC and the
audio component to avoid damaging the speaker system.

•

The volume level should not be turned up to the point of
distortion.

Hooking up the system

1

(See fig. A for steps 1 through 3.)

Connect the left speaker cord 8 pin plug to the rear
panel jack with their respective arrows aligned.

2

Connect the subwoofer to the wall outlet.

3

Connect the CD walkman, PC, etc., to the INPUT
jack on the left speaker.

4

Position the speakers.

Note on connecting

Do not connect an output device to INPUT 1 and INPUT 2
of the unit at the same time (as shown in fig. C) to avoid
damage to the output device.

Listening to the sound

First, turn down the volume on the left speaker. The volume
should be set to minimum before you begin playing the
programme source.

1

Press POWER on the left speaker.

The POWER indicator lights up green.

For the European models

Press POWER on the subwoofer to turn it on, and then
press OPERATE on the left speaker.
The OPERATE indicator lights up green.
The main power source of the system is provided by the
subwoofer. When the power of the subwoofer is turned off,
the system does not operate, even if OPERATE is pressed.

2

Play the programme source.

To adjust the volume

Rotate VOLUME.

To adjust the subwoofer

Rotate BASS to adjust the bass volume.
Set the volume level to best suit your preference according to the
programme source.

Notes

• To enjoy high-quality sound, do not turn the bass
volume too high.

•When two units are connected to the system and the
programme sources are played at the same time, their
playback sounds will be mixed up. In this case, turn off
one of the units not in use.

(See fig. B.)

(see fig. D)

3

SRS-D101

• IC Block Diagrams

R-IN

IC301 LA4601N

Standby switching

10

CH1 input
amplifier

STBY

7

SECTION 2

DIAGRAMS

Predrive
amplifier

Vcc

4

Output
amplifier

R-OUT

1

PRE-GND

L-IN

IC302 LM4701T

9

8

REF
amplifier

CH2 input
amplifier

Pop noise prevention block

Predrive
amplifier

TSD protector

Output
amplifier

Ripple filter

2

3

POWER
GND

L-OUT

6 5

FILTERP. P

4

2-1. Printed Wiring Board – AMP Section –

SRS-D101

Ver 1.1 2002.11

B

TO

CONTROL

BOARD

CN102

(Page 6)

J301

L OUT

AEP, UK, AUS

IC301

IC302

IC303

(Page 7)

• Semiconductor

Location

Ref. No. Location

D301 B-3

IC301 B-4
IC302 B-2
IC303 B-3

Q301 B-1
Q302 B-1
Q303 B-1
Q304 B-3
Q305 B-3

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• b : Pattern from the side which enables seeing.

55