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Sony SA-WX900 Service Manual
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Sony SA-WX900 Service Manual

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SERVICE MANUAL
Ver. 1.2 2005.07
AUDIO POWER SPECIFICATIONS
For the U.S.A. model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 4 ohm loads, from 20 – 200 Hz; rated 800 watts, minimum RMS
power, with no more than 0.8 % total harmonic distortion from 250
milliwatts to rated output.
System
Type
Active Subwoofer, magnetically shielded (closed cabinet)
Speaker units
Woofer : 30 cm dia. (12 in.), cone type x 2
Continuous RMS output
North American model
(4 ohms/100Hz, 0.8%) : 1,000 W
European model (DIN 4 ohms/100Hz, 0.8%) : 1,000 W
Reproduction frequency range
20 Hz – 200 Hz
High frequency cut-off frequency
50 Hz – 200 Hz
Phase selector
NORMAL, REVERSE
Mode selector
MOVIE, MUSIC
BASS-BOOST OFF, 1, 2
Sony Corporation
9-961-097-03
2005G02-1
Home Audio Group
© 2005.07
Published by Sony Engineering Corporation
SA-WX900

SPECIFICATIONS

Inputs
Input jacks
LINE IN: input pin jack
SPEAKER IN: input terminals
Output jacks
LINE OUT: output pin jack
SPEAKER OUT: output terminals
General
Power requirements
North American model : 120 V AC, 60 Hz
European model : 220 – 240 V AC, 50 Hz
Other models : 220 – 240 V AC, 50 Hz
Power consumption
220 W
less than 0.5 W (Standby mode)
Dimensions
Approx. 440 x 550 x 620 mm
3
7
(17
/
x 21
/
x 24
8
8
Mass
48 kg (105lb 14oz)
Supplied accessories
Audio connecting cord
(1 phono plug – 1 phono plug) (1)
Speaker cords (2)
Spike
Design and specifications are subject to change without notice.
US Model
Canadian Model
AEP Model
UK Model
1
/
in.) (w/h/d)
2
ACTIVE SUBWOOFER

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  • Page 1: Specifications

    BASS-BOOST OFF, 1, 2 (1 phono plug – 1 phono plug) (1) Speaker cords (2) Spike Design and specifications are subject to change without notice. ACTIVE SUBWOOFER Sony Corporation 9-961-097-03 2005G02-1 Home Audio Group © 2005.07 Published by Sony Engineering Corporation...

  • Page 2: Table Of Contents

    SONY PARTS WHOSE PART NUMBERS APPEAR AS FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT LISHED BY SONY. DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS...

  • Page 3: General

    SA-WX900 SECTION 1 GENERAL This section is extracted from instruction manual. • Location of controls LEVEL CUT OFF FREQUENCY PHASE POWER SAVE MODE BOOST NORM MUSIC ON/STANDBY POWER 50Hz 200Hz REVERSE AUTO MOVIE CUT OFF MODE LEVEL POWER BOOST PHASE...

  • Page 4: Diagrams

    SA-WX900 SECTION 2 DIAGRAMS THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For Schematic Diagrams. For printed wiring boards. Note: Note: • X : parts extracted from the component side.

  • Page 5: Schematic Diagram -Filter Section

    SA-WX900 Ver 1.1 2-2. SCHEMATIC DIAGRAM –FILTER SECTION –...

  • Page 6: Printed Wiring Board - Filter Section

    SA-WX900 Ver 1.1 2-3. Printed Wiring Board – FILTER SECTION – • See page 4 for Circuit Boards Location. FILTER BOARD • Semiconductor R230 Location D205 Ref. No. Location D204 D203 D202 D101 IC207 R231 D102 R214 R249 C215 D103...

  • Page 7: Schematic Diagram -Power Section

    SA-WX900 2-4. SCHEMATIC DIAGRAM –POWER SECTION –...

  • Page 8: Printed Wiring Board - Power Section

    SA-WX900 2-5. Printed Wiring Board – POWER SECTION – • See page 4 for Circuit Boards Location. FILTER BOARD AUTO POWER BOARD (Page 6) PROTECT BOARD Q903 Q911 Q904 Q905 Q901 Q902 C902 C620 C619 C903 EP602 IC602 R912 CN604...

  • Page 9: Exploded Views

    SA-WX900 SECTION 3 Ver. 1.2 EXPLODED VIEWS NOTE : The components identified by • The mechanical parts with no reference number in the • -XX, -X mean standardized parts, so they mark 0 or dotted line with mark exploded views are not supplied.

  • Page 10: Cabinet Section

    SA-WX900 Ver 1.1 3-2. CABINET SECTION not supplied not supplied SP901 supplied not supplied SP902 not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-250-897-01 BASE, UNIT 4-246-147-01 KNOB, PUSH 4-238-408-11 SCREW (1) (4X25), +BV TAPPING...

  • Page 11: Electrical Parts List

    SA-WX900 SECTION 4 AUTO POWER ELECTRICAL PARTS LIST NOTE : When indicating parts by reference num- • Items marked “ * ”are not stocked since they • Due to standardization, replacements in the ber, please include the board. are seldom required for routine service. Some...
  • Page 12 SA-WX900 AUTO POWER CONTROL FILTER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R602 1-249-418-11 CARBON 1.2K 1/4W F C211 1-162-294-31 CERAMIC 0.001uF R603 1-249-393-11 CARBON 1/4W F C212 1-136-168-00 MYLAR 0.18uF 0 R604 1-249-409-11 CARBON...
  • Page 13 SA-WX900 Ver 1.1 FILTER INPUT LINE FILTER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R202 1-249-429-11 CARBON 1/4W < DIODE > R203 1-249-427-11 CARBON 6.8K 1/4W F R204 1-249-429-11 CARBON 1/4W D101 8-719-991-33 DIODE 1SS133T-77...
  • Page 14 SA-WX900 POWER SW PROTECT SWITCH Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-860-443-11 POWER SW BOARD < TRANSISTOR > ************** Q901 6-550-660-01 TRANSISTOR KTC3206-O < CAPACITOR > Q902 6-550-660-01 TRANSISTOR KTC3206-O Q903 6-550-660-01 TRANSISTOR KTC3206-O...
  • Page 15 SA-WX900 SWITCH Ref. No. Part No. Description Remark < SWITCH > SW301 1-554-481-00 SWITCH, SLIDE (PHASE) SW302 1-554-481-00 SWITCH, SLIDE (POWER SAVE) SW303 1-554-481-00 SWITCH, SLIDE (MODE) SW304 1-571-908-11 SWITCH, SLIDE (BASS-BOOST) ****************************************************** MISCELLANEOUS ************* 1-468-800-11 REGULATOR, SW (AEP,UK) 1-468-801-11 REGULATOR, SW (US,CND)
  • Page 16 SA-WX900 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 2003.10...

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