Bose 302 A Service Manual
Loudspeaker (commercial indoor/outdoor 70v/100v distributed applications)
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Also See for Bose 302 A:
- Installer's manual (13 pages) ,
- Technical data sheet (2 pages) ,
- Installer's manual (7 pages)
Related Manuals for Bose Bose 302 A
Summary of Contents for Bose Bose 302 A
- Page 1 ® Bose 302™A Loudspeaker (Commercial Indoor/Outdoor 70V/100V Distributed Applications) Service Manual ©2006 Bose Corporation Part Number 257475 Rev. 02...
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Page 2: Table Of Contents
BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CEN- TER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. WARRANTY INFORMATION The Bose 302A loudspeaker is covered by a five year transferable limited warranty. -
Page 3: Specifications
SPECIFICATIONS Transducers: One 5.25" environmental woofer per enclosure Two 2.5" environmental resistant Twiddler drivers per enclosure Crossover: 250Hz ±10% at 6dB/octave -3dB at 75Hz ±5Hz Low frequency cutoff: 70V: 25 Ohms at 100W tap setting Impedance: 100V: 50 Ohms at 100W tap setting 100W continuous per IEC 268-5 Power Handling: Transformer:... -
Page 4: Disassembly/Assembly Procedures
DISASSEMBLY/ASSEMBLY PROCEDURES (Refer to Figure 4) 1. Grille and Baffle Removal 5.3 Remove the four screws (16) that secure the woofer to the baffle. Lift out the woofer. 1.1 Grasp the edge of the grill (10) and pull it off. 6. -
Page 5: Transformer Wiring
DISASSEMBLY/ASSEMBLY PROCEDURES (Refer to Figure 4) 10. Crossover Capacitor Replacement Boss 3 10.1 Connect the leads of the capacitor (3) to the wires and solder the connections. The capacitor is wired in series with the woofer’s (1) positive terminal and the Twiddler driver’s (2) positive terminal. -
Page 6: Test Procedures
TEST PROCEDURES Test setup note: Disconnect the input of the 4.4 Sweep the signal generator from 5 kHz to speaker from the transformer for procedures 15 kHz and then back to 5 kHz. 1-5. 4.5 Listen for buzzes, rattles or other noises. 1. -
Page 7: Part List
MAIN PART LIST Item Description Part Number Note Number WOOFER, 5.25", ENVIRONMENTAL 289780-001 TWIDDLER DRIVER, ENVIROMENTAL 289783-001 CROSSOVER ASSY, 22UF 291731-002 INDUCTOR, 1.5mH, 0.8 OHM, FERRITE 147196 CAPACITOR, BIPOLAR, 15uF 291087-001 RESISTOR, WW, 5W, 10%, 11.1 OHM 125605-110 NUT, INSERT 250818 CONNECTOR, ENVIRONMENTAL, BLACK 250815-01... -
Page 8: Packaging Part List
PACKAGING PART LIST Item Description Part Number Note Number BRACKET/TRANSFORMER, 70V/100V BLACK 255901-01 BRACKET/TRANSFORMER, 70V/100V WHITE 255901-02 pkg of 2 70V/100V TRANSFORMER ONLY 254426 HARDWARE KIT, ENV, 4-PACK, BLACK 290307-003 HARDWARE KIT, ENV, 4-PACK, WHITE 290307-004 BAG, POLY, HDPE, 18X26, 1 MIL 255354-001 PACKING, END CAP, TOP 250809... -
Page 9: Table Of Contents
SERVICE MANUAL REVISION HISTORY Date Revision Description of Change Change Pages Level Driven By Affected 8/02 Document release revision 00 Service manual release Unknown 00 to 01 ECN 33972 and 33783 02/06 01 to 02 Added RoHS part numbers This product is now built with RoHS compliant... - Page 10 Specifications and Features Subject to Change Without Notice Bose Corporation The Mountain Framingham Massachusetts USA 01701 P/N 257475 REV. 02 2/2006 For Technical Assistance or Part Orders, Call 1-800-233-4408...