Sony SA-WMSP68 User Manual

1
SERVICE MANUAL
US Model
SA-WMSP68
SUB WOOFER
Ver 1.0 2004.07
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-879-059-01
2004G04-1
© 2004.07
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 100
watts, minimum RMS power, with no more than
0.8% total harmonic distortion from 250
milliwatts to rated output.
Speaker system Active subwoofer,
magnetically shielded
Speaker unit 250 mm cone type
Enclosure type Acoustically loaded bass
reflex
RMS output 120 W (6 ohms, 100 Hz,
THD 10%)
Input LINE IN (input pin jacks)
Power requirements 120 V AC, 60 Hz
Power consumption 95 W
Dimensions (w/h/d) (Approx.)
13 3/8 × 16 2/8 × 14 4/8
inches (337 × 410 × 365.5
mm) including front panel
Mass (Approx.) 28 lb 11 oz (13.0 kg)
Design and specifications are subject to change without
notice.
SPECIFICATIONS
• SA-WMSP68 is the subwoofer section
in HT-5800DP/6800DP/DDW960.

Sony SA-WMSP68 Specifications

General

Brand	Sony
Model	SA-WMSP68
Category	Subwoofer
Language	English

Summary

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

Details power output and total harmonic distortion specifications for the subwoofer.

SAFETY CHECK-OUT

LEAKAGE TEST

Procedure for testing AC leakage current from exposed metal parts to ground.

UNLEADED SOLDER

LEAD FREE MARK

Identifies components using lead-free solder and its characteristics.

SAFETY-RELATED COMPONENT WARNING!!

DIAGRAMS

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Common notes for PWB and schematic diagrams, including component identification and voltage measurement conventions.

CIRCUIT BOARDS LOCATION

Diagram showing the physical location of the main circuit boards within the unit.

IC BLOCK DIAGRAM

IC301 STK404-130S (POWER AMP Board)

Block diagram illustrating the internal connections of the IC301 power amplifier IC.

SCHEMATIC DIAGRAM - MAIN SECTION

PRINTED WIRING BOARDS MAIN SECTION

EXPLODED VIEWS

FRONT SECTION

Exploded view diagram of the front section of the SA-WMSP68 subwoofer, listing parts.

REAR SECTION

Exploded view diagram of the rear section of the SA-WMSP68 subwoofer, listing parts.

ELECTRICAL PARTS LIST

CONTROL BOARD

List of electrical components for the control board, including capacitors, connectors, ICs, jacks, and resistors.

MAIN BOARD

List of electrical components for the main board, including capacitors and diodes.

POWER AMP BOARD

List of electrical components for the power amp board, including capacitors and connectors.

POWER TRANS BOARD

List of electrical components for the power trans board, including fuse holder, capacitors, and connectors.

SWITCH BOARD

List of electrical components for the switch board, including capacitors and connectors.

SWITCH

List of electrical components for the switch section, including diodes and switches.

MISCELLANEOUS

List of miscellaneous components such as cords, fuses, and speakers.

REVISION HISTORY