Sony srs d 4100 service manual

Page 2

SRS-D4100/D5100

SAFETY CHECK-OUT

After correcting the original service problem, perform the following
safety checks 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

The AC leakage from any exposed metal part to earth Ground and

from all exposed metal pans to any exposed metal part having a

return to chassis, must not exceed 0.5 mA (500 microampers).

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 batteryeoperated 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 2V AC range are suitable. (See

Fig. A)
To Exposed Metal
Parts on Set
AC
0. 15uF g 1_ 5k£Z voltmeter
(0. 75V)

'=' Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY MARK A 0R DOTTED LINE
WITH MARKA ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL T0 SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.

TABLE OF CONTENTS

Specifications ............................................................................ l

1. GENERAL ................................................................... 3

2. DIAGRAMS

271. Schematic Diagram 7Amp Section7 ..............
272. Printed Wiring Boards7 Amp Section (Side A)7
273. Printed Wiring Boards7 Amp Section (Side B)7
274. Printed Wiring Boards 7 Control Section (D5100)7
275. Printed Wiring Boards 7 Control Section (D4100)7
2A6. Schematic Diagram 7 Control Section7 .......................... 10

3. EXPLODED VIEWS

3-1. Subwoofer Section .....................
32. Control Box, Satellite Speaker Section ........................... 12

4. ELECTRICAL PARTS LIST

ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITEII

LES COMPOSANTS IDENTIFIES PAR UNE MARQUE A SUFI LES
DIAGRAMMES SCHEMATIQUES ET LA LISTE DES PIECES
SONT CRITIQUES POUR LA SECURITE DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIECES
S0Nv DONT LES NUMEROS SONT DONNES DANS CE MANUEL
0U DANS LES SUPPLEMENTS PUBLIES PAR SONY.