SONY SAWMSP87E - Service Manual Immediate Download

SERVICE MANUAL

Sony Corporation

Audio Group

Published by Sony Engineering Corporation

US Model

Canadian Model

SA-WMSP87

AEP Model

UK Model

SA-WMSP87E

E Model

Australian Model

SA-WMSP87

ACTIVE SUBWOOFER

9-879-452-02

2005J16-1

Ver. 1.1 2005.10

SPECIFICATIONS

SA-WMSP87/WMSP87E

· SA-WMSP87/WMSP87E are the

sub woofer section in HT-5950DP/

DDW675 and HT-DDW870.

Photo: SA-WMSP87

M

·

odels of area code CEL, CEK

(SA-WMSP87E)

Models of other area code (SA-WMSP87)

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC

DISTORTION:

(Models of area code U only)

With 6 ohm loads, from 28 200 Hz; rated 100

watts, minimum RMS power, with no more than

0.7% total harmonic distortion from 250

milliwatts to rated output.

Speaker system

Active subwoofer,

magnetically shielded

Speaker unit

200 mm (7 7/8 inches)

cone type

Enclosure type

Acoustically loaded bass

reflex

RMS output

Models of area code U, CA

155 W (5 ohms, 100 Hz,

THD 10%)

Models of area code CEL, CEK

120 W (6 ohms, 100 Hz,

THD 10%)

Models of other area code 110 W (6 ohms, 100 Hz,

THD 10%)

Input

LINE IN (input pin jacks)

Power requirements

Power consumption

100 W

Dimensions (w/h/d) (Approx.)

270

× 325 × 398 mm

(10 5/8

× 12 3/4 × 15 5/ × 8

inches)

Mass (Approx.)

9.0 kg (19 lb 14 oz)

Area code

Power requirements

U, CA

120 V AC, 60 Hz

MX

127 V AC, 60 Hz

CEL, CEK

230 V AC, 50/60 Hz

AU

240 V AC, 50 Hz

SP

220 230 V AC,

50/60 Hz

E51

120/220/240 V AC,

50/60 Hz

·Abbreviation

AU

: Australian model

CA

: Canadian model

CEK

: UK model

CEL

: AEP model

E51

: Chilean and Peruvian model

MX

: Mexican model

SP

: Singapore model

U: US model

2

SA-WMSP87/WMSP87E

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)

Fig. A.

Using an AC voltmeter to check AC leakage.

1.5 k

0.15

µF

AC

voltmeter

(0.75 V)

To Exposed Metal

Parts on Set

Earth Ground

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 IDENTIFIÉS PAR UNE MARQUE 0 SUR

LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES

PIÈCES

SONT

CRITIQUES

POUR

LA

SÉCURITÉ

DE

FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS

QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT

DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS

PUBLIÉS PAR SONY.

MODEL IDENTIFICATION

Rear Side

INPUT

SUBWOOFER

SATTELLITE SPEAKER

CENTER SPEAKER

Part No.

·Abbreviation

AUS: Australian model

CND

: Canadian model

E51

: Chilean and Peruvian model

MX

: Mexican model

SP

: Singapore model

Model

Part No.

US, CND models

2-549-538-0[]

SP model

2-549-540-0[]

AUS model

2-549-543-0[]

E51 model

2-549-545-0[]

MX model

2-549-549-0[]

AEP, UK models

2-589-803-0[]

3

SA-WMSP87/WMSP87E

Note on Printed Wiring Boards:

· X : parts extracted from the component side.

· Y : parts extracted from the conductor side.

·

: Pattern from the side which enables seeing.

Note on Schematic Diagrams:

· All capacitors are in

µF unless otherwise noted. (p: pF) 50

WV or less are not indicated except for electrolytics and

tantalums.

· 2 : nonflammable resistor.

· 5 : fusible resistor.

· All resistors are in

and 1/4 W or less unless otherwise

specified.

· C : panel designation.

· A : B+ Line.

· B : B Line.

·Voltages and dc with respect to ground under no-signal

conditions.

no mark : Power on

·Voltages are taken with a VOM (Input impedance 10 M

).

Voltage variations may be noted due to normal production

tolerances.

· Signal path.

F

: AUDIO

·Abbreviation

CND

: Canadian model

E51

: Chilean and Peruvian model

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is printed in each block.)

Note:

The components identi-

fied by mark 0 or dot-

ted line with mark 0 are

critical for safety.

Replace only with part

number specified.

Note:

Les composants identifiés

par une marque 0 sont cri-

tiques pour la sécurité.

Ne les remplacer que par une

piéce por tant le numéro

spécifié.

· Circuit Boards Location

CONTROL board (WMSP87)

INPUT board

MAIN board

POWER TRANS board

SWITCH board (WMSP87)

CONTROL board

(WMSP87E)

SWITCH board

(WMSP87E)

LED board

(WMSP87E)

(WMSP87)

SECTION 1

DIAGRAMS

MEMO

4

SA-WMSP87/WMSP87E

1-1. PRINTED WIRING BOARD -- WMSP87 --

·

:Uses unleaded solder.

· See page 3 for Circuit Boards Location.

POWER

2

1

41

POWER

RV801

12

1

6

2

EXCEPT

E51

EXCEPT

E51

FH902

FH952

F902

E51

VOLTAGE

SELECTOR

S2

240V

220V

120V

F901

AC IN

(CHASSIS)

E

1

13

14

85

14

85

E

12

13

(CHASSIS)

2

1

SP1

(WOOFER)

+

INPUT

IC301

IC202

IC203

T1

POWER

TRANSFORMER

1

A

B

C

D

E

F

G

H

23456789

10

11

12

13

· Semiconductor

Location

Ref. No.

Location

D205

C-11

D206

C-11

D301

E-8

D302

E-8

D304

C-10

D401

C-7

D402

C-8

D403

C-8

D501

B-9

D502

E-8

D602

B-10

D901

C-2

IC202

C-11

IC203

C-12

IC301

E-10

Q501

B-9

Q502

C-10

Q503

B-10

Q504

B-10

Q505

E-8

5

SA-WMSP87/WMSP87E

1-2. PRINTED WIRING BOARD -- WMSP87E --

·

:Uses unleaded solder.

· See page 3 for Circuit Boards Location.

1

A

B

C

D

E

F

G

H

I

J

23456789

10

11

12

13

IC203

IC202

IC301

3

(CHASSIS)

C801

RV201

CNP801

C101

C201

R110

CN101

J101

JW206

R202

CN901

D901

CN402

CN301

CN204

RY301

C401

C402

C405

C407

C408

D402

D403

Q501

Q502

Q503

Q504

D501

C501

C502

C503

R403

R404

C308

C306

C307

R307

C302

R301

R302

R401

R402

D304

R311

R312

C309

C310

R502

R503

JW102

JW116

C303

JW114

JW115

R308

D401

D301

JW106

R309

R303

C301

JW301

R508

Q505

R506

D502

R507

JW401

JW124

JW126

JW127

JW501

C312

C314

R505

R304

R501

G1

G2

JW112

R500

SP1

C409

C410

C313

R313

D302

C406

R207

C203

C204

R208

AEP,UK

R209

R210

R205

R212

R213

C208

R216

R214

C210

R217

C207

C305

C304

R504

C601

D602

R601

D205

D206

C205

C206

JW123

JW105

JW402

JW107

JW108

JW132

JW109

R305

C311

CN202

JW125

JW110

R314

JW

111

JW129

R306

JW101

CNP111

C404

JW404

JW403

JW103

JW104

C211

C209

JW117

JW118

R211

JW120

JW121

JW130

JW131

JW122

JW133

JW134

JW119

R206

R310

C403

JW135

JW136

S901

C901

CN3

CN1

CN2

JW1

FH951

F901

C2

T1

CNP401

FH901

JW2

R317

C318

C316

C317

C315

· Semiconductor

Location

Ref. No.

Location

D205

E-10

D206

E-11

D301

G-7

D302

G-8

D304

E-9

D401

D-6

D402

D-7

D403

D-7

D501

D-8

D502

G-7

D602

D-10

D901

A-10

IC202

E-11

IC203

E-12

IC301

G-9

Q501

D-9

Q502

D-9

Q503

D-10

Q504

D-10

Q505

G-7