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SA-WMSP2/WMSP4

US Model

Canadian Model

AEP Model

UK Model

E Model

SERVICE MANUAL

ACTIVE SUBWOOFER

Ver 1.0  2002. 02

SPECIFICATION

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:

With 6 ohm loads, from 28 – 200 Hz; rated 100
watts (SA-WMSP4) / 50 watts (SA-WMSP2),
minimum RMS power, with no more than 0.8%
total harmonic distortion from 250 milliwatts to
rated output (Models of area code U only).

Speaker system

Active subwoofer,
magnetically shielded

Speaker unit

Woofer: 20 cm cone type

Enclosure type

Acoustically loaded bass
reflex

Continuous RMS power output
(6 ohms, 20 – 250 Hz)

SA-WMSP4

100 W

SA-WMSP2

50 W

Reproduction frequency range

28Hz – 200 Hz

High frequency cut-off frequency

150 Hz

Input

LINE IN (input pin jacks)

Power requirements

Area code

Power requirements

U, CA, MX

120 V AC, 60 Hz

CEL, CEK, SP, MY 230 V AC, 50/60 Hz

AR

220 – 230 V AC, 50/60 Hz

E2/E3

120/220/230 V AC, 50/60 Hz

Power consumption

SA-WMSP4

100 W

SA-WMSP2

50 W

Dimensions

 

(w/h/d)

Approx. 272   326   405
mm  (10 3/4  12 7/8   16
inches) including front
panel

Mass

SA-WMSP4

10.0 kg (22 lb 1 oz)

SA-WMSP2

9.0 kg (19 lb 14 oz)

Sony Corporation

Home Audio Company

Published by Sony Engineering Corporation

9-873-478-01

2002B1600-1

© 2002.02

• SA-WMSP2 is the sub woofer section in

HT-DDW740.

• SA-WMSP4 is the sub woofer section in

HT-DDW840.

photo: SA-WMSP4 silver model

• Abbreviation

AR

: Argentin model

CA

: Canadian model

CEK : UK model
CEL

: AEP model

MX

: Mexican model

MY

: Malaysia model

SP

: Singapore model

U

: US model

Summary of Contents for SA-WMSP2

Page 1: ...ge 28Hz 200 Hz High frequency cut off frequency 150 Hz Input LINE IN input pin jacks Power requirements Area code Power requirements U CA MX 120 V AC 60 Hz CEL CEK SP MY 230 V AC 50 60 Hz AR 220 230 V AC 50 60 Hz E2 E3 120 220 230 V AC 50 60 Hz Power consumption SA WMSP4 100 W SA WMSP2 50 W Dimensions w h d Approx 272 326 405 mm 10 3 4 12 7 8 16 inches including front panel Mass SA WMSP4 10 0 kg 2...

Page 2: ... 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 operatedAC voltmeter The limit indication is 0 75 V so analog meters must have an accurat...

Page 3: ...ible resistor All resistors are in Ω and 1 4 W or less unless otherwise specified C panel designation A B Line B B Line Voltages are dc with respect to ground under no signal conditions no mark Power on Voltages are taken with aVOM Input impedance 10MΩ Voltage variations may be noted due to normal preduction tolerances Signal path F AUDIO Abbreviation AR Argentin model CND Canadian model MX Mexica...

Page 4: ...4 SA WMSP2 WMSP4 CIRCUIT BOARD LOCATION LED board SWITCH board INPUT JACK board MAIN board CONTROL board POWER TRANS board ...

Page 5: ...OWER TRANSFORMER Ref No Location D202 E 4 D301 C 1 D302 C 1 D304 D 3 D401 A 3 D402 B 3 D403 C 3 D404 F 3 D405 F 2 D501 C 4 D502 B 1 IC101 F 3 IC202 F 2 IC301 D 1 Q501 D 4 Q502 D 3 Q503 D 4 Q504 D 4 Q505 B 1 Semiconductor Location See page 3 for Circuit Boards Location ...

Page 6: ...6 6 SA WMSP2 WMSP4 1 2 Schematic Diagrams See page 4 for IC Block Diagrams IC B D ...

Page 7: ...que par une pièce portant le numéro spécifié 2 1 Front Section Ref No Part No Description Remarks Ref No Part No Description Remarks 1 1 1 1 1 9 3 5 4 SP1 11 10 8 7 2 6 not supplied Supplied with RV601 AMP section 1 X 4953 515 1 FRAME SILVER ASSY GRILLE SILVER 1 X 4953 516 1 FRAME BLACK ASSY GRILLE BLACK 2 4 232 530 01 PANEL FRONT SILVER WMSP2 UK AEP MY SP E 2 4 232 530 21 PANEL FRONT SILVER WMSP2...

Page 8: ...PE1 BVTP 0F901 1 532 463 51 FUSE T1AL 250V WMSP4 AR UK AEP MY SP 0F901 1 532 464 31 FUSE T2 5AL 250V WMSP2 E WMSP4 E 0F901 1 532 500 31 FUSE T0 63AL 250V WMSP2 UK AEP MY SP 0F901 1 532 744 11 FUSE GLASS TUBE 2 5A 125V WMSP2 US CND WMSP4 US CND MX 0F902 1 532 502 51 FUSE T1 25AL 250V WMSP2 E WMSP4 E 0T1 1 437 657 11 POWER TRANSFORMER WMSP2 E 0T1 1 437 658 11 POWER TRANSFORMER WMSP2 UK AEP MY SP 0T1...

Page 9: ...RBON 100K 5 1 4W 1 684 031 11 LED BOARD CONNECTOR CN203 1 564 517 11 PLUG CONNECTOR 2P DIODE D201 8 719 058 03 DIODE SEL5423E TP15 POWER A 4727 932 A MAIN BOARD COMPLETE WMSP2 A 4727 938 A MAIN BOARD COMPLETE WMSP4 CAPACITOR C101 1 128 813 11 CERAMIC 220PF 5 50V C102 1 126 964 11 ELECT 10uF 20 00 50V C103 1 126 964 11 ELECT 10uF 20 00 50V C104 1 136 165 00 MYLAR 0 1uF 5 00 50V C105 1 136 165 00 MY...

Page 10: ...1 CARBON 100K 5 1 4W R105 1 249 441 11 CARBON 100K 5 1 4W R106 1 247 895 00 CARBON 470K 5 1 4W R107 1 247 887 00 CARBON 220K 5 1 4W R108 1 249 429 11 CARBON 10K 5 1 4W R109 1 249 441 11 CARBON 100K 5 1 4W R110 1 249 433 11 CARBON 22K 5 1 4W R111 1 247 887 00 CARBON 220K 5 1 4W R112 1 249 433 11 CARBON 22K 5 1 4W R201 1 215 894 11 METAL OXIDE 2 2K 5 2W WMSP2 R201 1 215 920 11 METAL OXIDE 3 3K 5 3W ...

Page 11: ...31 FUSE T0 63AL 250V WMSP2 UK AEP MY SP 0F901 1 532 744 11 FUSE GLASS TUBE 2 5A 125V WMSP2 US CND WMSP4 US CND MX 0F902 1 532 502 51 FUSE T1 25AL 250V WMSP2 E WMSP4 E SP1 1 529 995 11 SPEAKER 20cm WMSP2 SP1 1 825 004 11 LOUD SPEAKER WMSP4 0T1 1 437 657 11 POWER TRANSFORMER WMSP2 E 0T1 1 437 658 11 POWER TRANSFORMER WMSP2 UK AEP MY SP 0T1 1 437 659 11 POWER TRANSFORMER WMSP2 US CND 0T1 1 437 660 11...

Page 12: ...HISTORY Clicking the version allows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2002 02 New ...

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