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Sony SA-WMSP75 Service Manual
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Sony SA-WMSP75 Service Manual

Sony SA-WMSP75 Service Manual

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SERVICE MANUAL
Ver 1.4 2004.01
• SA-WMSP75/WMSP85 are the sub woofer
section HT-DDW750,HT-1800DP,HT-6600DP
and HT-1750DP.
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 75
watts (SA-WMSP75) / 100 watts (SA-WMSP85),
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
Speaker unit
Enclosure type
Continuous RMS power output
(6 ohms, 20 – 250 Hz)
SA-WMSP75
SA-WMSP85
Reproduction frequency range
High frequency cut-off frequency
Input
Sony Corporation
9-877-044-05
2004A16-1
Home Audio Company
© 2004.01
Published by Sony Engineering Corporation
photo: SA-WMSP75

SPECIFICATION

Active subwoofer,
magnetically shielded
Woofer: 20 cm cone type
Acoustically loaded bass
reflex
75 W
100 W
28Hz – 200 Hz
150 Hz
LINE IN (input pin jacks)
Canadian Model
Australian Model
Power requirements
Area code
Power requirements
U, CA, MX
120 V AC, 60 Hz
CEL, CEK, SP, AU 230 V AC, 50/60 Hz
E2
120/220/230 V AC, 50/60 Hz
Power consumption
SA-WMSP75
75 W
SA-WMSP85
100 W
Approx. 270 × 325 × 398
Dimensions (w/h/d)
mm (10 3/4 × 12 7/8 × 15 3/4
inches) including front
panel
Mass
SA-WMSP85
10.0 kg (22 lb 1 oz)
SA-WMSP75
9.0 kg (19 lb 14 oz)
• Abbreviation
AU
: Australian model
CA
: Canadian model
CEK : UK model
CEL : AEP model
MX
: Mexican model
SP
: Singapore model
U
: US model
ACTIVE SUBWOOFER
US Model
SA-WMSP75/WMSP85
AEP Model
UK Model
E Model
SA-WMSP85

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Summary of Contents for Sony SA-WMSP75

  • Page 1 US Model Canadian Model Ver 1.4 2004.01 SA-WMSP75/WMSP85 AEP Model UK Model E Model Australian Model SA-WMSP85 • SA-WMSP75/WMSP85 are the sub woofer section HT-DDW750,HT-1800DP,HT-6600DP photo: SA-WMSP75 and HT-1750DP. SPECIFICATION POWER OUTPUT AND TOTAL Power requirements HARMONIC DISTORTION: Area code Power requirements With 6 ohm loads, from 28 –...
  • Page 2 CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.
  • Page 3 SA-WMSP75/WMSP85 SECTION 1 1-2. IC Block Diagrams DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. IC301 STK404-130S (MAIN Board) (In addition to this, the necessary note is printed in each block.) Note on Printed Wiring Boards: Note on Schematic Diagram: •...
  • Page 4 SA-WMSP75/WMSP85 Ver 1.2 2003.06 • See page 3 for Circuit Boards Location. • : Uses unleaded solder. 1-3. Printed Wiring Board – MAIN Section – WMSP75 WMSP85 INPUT • Semiconductor Location Ref. No. Location D205 WMSP85 D206 WMSP75 D301 D302...
  • Page 5 SA-WMSP75/WMSP85 Ver 1.2 2003.06 • See page 3 for Circuit Boards Location. • : Uses unleaded solder. 1-4. Printed Wiring Board – POWER Section – EXCEPT E2 230V WMSP85 CNP401 WMSP75:3P WMSP85:6P...
  • Page 6 SA-WMSP75/WMSP85 Ver 1.2 2003.06 1-5. Schematic Diagrams • See page 3 for IC Block Diagrams. R209 100k R208 IC202(1/2) NJM4565DD C801 R212 R213 IC203(1/2) CNP801 C201 NJM4565DD CNP111 CN202 R216 RV801 C203 C204 J101 C208 R202 0.22 C101 R110 IC202(2/2)

  • Page 7: Front Section

    Description Remarks 4-243-842-01 NET, GRILLE (SILVER) 4-999-482-01 KNOB (VOL)(SILVER) 4-243-842-11 NET, GRILLE (BLACK) 4-999-482-11 KNOB (VOL)(BLACK) 4-998-417-02 EMBLEM (No.5), SONY 4-235-677-01 SCREW (4X20)(TYPE1), +BVTP 4-243-834-01 PANEL, FRONT (SILVER)(US,CND) 1-529-995-12 SPEAKER (20cm)(WMSP75) 4-243-834-11 PANEL, FRONT (BLACK)(WMSP75 : US) 1-825-004-13 SPEAKER (20cm)(WMSP85)
  • Page 8 SA-WMSP75/WMSP85 Ver 1.2 2003.06 2-2. Amp Section supplied supplied supplied supplied supplied F902 F901 supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 0 F901 A-4723-991-A CABINET ASSY, SPEAKER (SILVER) 1-533-450-11 FUSE, GLASS TUBE 2.5A/125V (US,CND,MX)

  • Page 9: Electrical Parts List

    SA-WMSP75/WMSP85 SECTION 3 Ver 1.2 2003.06 CONTROL ELECTRICAL PARTS LIST MAIN INPUT(CONTROL) NOTE: • Due to standardization, replacements in the • RESISTORS When indicating parts by reference number, parts list may be different from the parts All resistors are in ohms.
  • Page 10 SA-WMSP75/WMSP85 Ver 1.2 2003.06 MAIN POWER TRANS Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C503 1-126-934-11 ELECT 220uF 20.00% 10V R216 1-249-429-11 CARBON 1/4W C601 1-126-964-11 ELECT 10uF 20.00% 50V R217 1-249-441-11 CARBON 100K 1/4W...
  • Page 11 SA-WMSP75/WMSP85 Ver 1.2 2003.06 POWER TRANS SWITCH Ref. No. Part No. Description Remarks < FUSE HOLDER > FH901 1-533-399-11 FUSE HOLDER FH902 1-533-399-11 FUSE HOLDER (E2) FH951 1-533-399-11 FUSE HOLDER FH952 1-533-399-11 FUSE HOLDER (E2) < SWITCH > 0 S2...
  • Page 12 SA-WMSP75/WMSP85 REVISION 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 2003.02...

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