151SE Service Manual
Contents
1. 9 DISASSEMBLY PROCEDURES 6 Enclosure Re assembly 6 1 Re install the Crossover PCB Connect the PCB as shown in the wiring diagram and the schematic diagram 6 2 With the baffle face down lower the enclosure over the baffle Dress the foamed wires toward the center of the loudspeaker enclosure Note Ensure there are no wires visible through the speaker port once assembled 6 3 Reinsert the 8 screws that secure the enclosure to the baffle assembly 6 4 Perform the test procedures in this manual to ensure that there are no air leaks or wire buzzes before returning the speaker to the customer 7 Grille Replacement 7 1 Align the grille to the speaker enclosure and push in lighily TEST PROCEDURES 1 Air Leak Test 1 1 Apply an 8Vrms 105Hz signal to the speaker input terminals 1 2 Listen to the front of the speaker carefully for air leaks from around the cabinet seams and Twiddler speakers Turn the speaker over and listen for air leaks from the enclosure securing screws and drivers 2 Sweep Test 2 1 Apply a 6Vrms Vrms 10Hz signal to the speaker input terminals 2 2 Sweep the signal generator from 10Hz to 3kHz and then back to 10Hz 2 3 Listen carefully for buzzes ticks rattles or other noises Replace the Twiddler speakers if they are found to be defective Note To distinguish between normal suspension noise and rubs or ticks slightly displace the cone of the twiddler with your fingers If the noise can be made to2. go away or get worse itis a rub or tick and the twiddler should be replaced If the noise stays the same it is normal suspen sion noise and the twiddler is okay Suspension noise will not be heard with program material 10 SERVICE MANUAL REVISION HISTORY Date Revision Description of Change Change Driven Pages Level By Affected 1 04 00 Document released at revision 00 Service manual All release 7 08 01 Various part number changes Part changes Various Service manual format updated Specifications and Features Subject to Change Without Notice OISE Better sound through research Bose Corporation The Mountain Framingham Massachusetts USA 01701 Reference Number 273701 REV 01 7 2008 http serviceops bose com
3. BACK WHITE 27426 1 002 11 SCREW TAPP 8 11X 75 PAN ASY SQ 296495 012 8 12 SCREW TAPP 6 13X 500 PAN AS SQ 296443 008 2 13 CROSSOVER PCB ASSY ROHS 289945 001 1 14 INSERT NUT DECORATIVE CAP 123991 2 Figure 2 Part Exploded View 5 CROSSOVER PART LIST Reference Description Part Number Note Designator R1 RES WW 5W 10 2 7 OHM 132105 2R7 4 R2 JUMPER 22AWG INSUL 1 25 108435 1R25 4 C1 47uF EL BP 63V 20 283940 470A C2 470uF EL BP 85C 20 268841 471H 4 C3 100uF EL BP 85C 20 268841 Z101H 4 L1 INDUCTOR ASSY 200uH ROHS 291571 001 4 J1 PIN GROOVED 52x 34x 045 291521 5234 J2 PIN GROOVED 52x 34x 045 291521 5234 PTC1 POLYSWITCH 60V RXE065 275782 PTC2 JUMPER 22AWG INSUL B PC BOARD MODEL 191 267563 002 4 gt TAPE FOIL 140551 4 RIVET ANCHOR PLASTIC 2 PIECE 250072 001 4 129000 5234 TP1 PTC1 TP2 c2 TP3 Figure 3 Crossover PCB Schematic TP5 R1 J2 129000 5234 1 5mH DISASSEMBLY PROCEDURES 1 Grille Removal 1 1 Remove the grille by pulling on the ends with your fingers or pry carefully with a non metallic object Note The grille is made entirely of metal Do not try to remove the grille by pulling on the plastic polypropylene speaker enclosure 2 Enclosure Dissassembly 2 1 To disassemble the enclosure place the unit on a flat soft surface grille side down Remove the 8 screws identified bel
4. FORMATION The Bose 151SE Environmental Speaker is covered by a five year transferable warranty PRODUCT DESCRIPTION The Bose 151SE Environmental Speaker offers an advanced design with quality construction Each loudspeaker contains three 1 4 ohm environmentally resistant Twiddler speakers in a horizontal arc shaped 2 2 liter ported enclosure A protection and equalization circuit is located on the pcb attached to the rear half of the speaker The speaker has an aluminum grille with a logo which rotates in 90 degree increments The 151SE is available in black and white 2 SPECIFICATIONS Transducers Three 2 5 environmental Twiddler speakers per enclosure Impedance 6 Ohms nominal 4 8 Ohms minimum 20 20kHz Power Handling 50 W 17 3Vrms continuous per IEC 268 5 Recommended amp receiver power 10 100W per channel System Protection PTC in parallel with a capacitor Sensitivity 89 5dB SPL at 2 83V 1meter 2kHz octave band Flux Leakage N A not shielded not for use near a video monitor External Dimensions 12 3 x 4 5 x 6 2 31 2cm x 11 4cm x 15 8cm Weight Single Speaker 4 6lb 2 1 kg Packed Pair 11 7 Ib 5 3 kg PART LIST NOTES 1 This part is not normally available from Customer Service Approval from the Field Service Manager is required before ordering 2 The individual parts located on the PCBs are listed in the Electrical Part List 3 AN This part is critical for safety purposes Failure to use a substi
5. OISE Better sound through research Model 151SE Environmental Speaker 2008 Bose Corporation Service Manual Reference Number 273701 SM Rev 01 CONTENTS bruni nr He nn osa Product Desert Proprietary INFO MATION sci arriere vistas nement Kondia nohu Hi P SEEK FH min SEEN FIMUM KaM i i S P ck gin Part LIST m s m s mat mt ko o a ta seeds a A a k in Figure 1 Packaging Exploded VI shoes dant Ra cutn ken RE TS nettes ina Main Part LIST e Figure 2 Part Exploded View an a nn Tm Cr ssover P rt LIST Sn eiaa Figure 3 Crossover PCB SCh Male nes ist nn lei tement Disassembly ProcedUt6S usnnsnnnismsnananannsenaennenen a MIU RR EDU EREE Esop deara 7 10 Wiring Diagram Test Pr c dU ES i s 10 Service Manual Revision HIStOfY csssrcessenrussessnsensensennesseumetsnnncensenaenestasen 11 PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE WARRANTY IN
6. ow Note The unit is press fit together All parts of the unit must be in place prior to replacing the 8 SCrews 2 2 With the unit face down gently pull up on the rear enclosure Be careful not to lift the unit too high as the Twiddler speakers are wired to the rear enclosure Lay the rear enclosure on its side to expose the inside of the unit and the Twiddler speakers as seen below DISASSEMBLY PROCEDURES Note There are no screws in the Twiddler speakers they are held in place by the press fit between the rear enclosure and the baffle 3 Crossover PCB Removal 3 1 Perform Procedure 1 3 2 Remove the 2 screws identified below that secure the crossover assembly to the cabinet 3 3 Make a note of the wiring configuration Lift out the crossover PCB and cut the wires as close to the terminals as possible DISASSEMBLY PROCEDURES 4 Twiddler Removal 4 1 Perform procedure 1 4 2 Make a note of the wiring configuration Lift the Twiddler speakers out and cut the wires as close to the wire terminals as possible 5 Twiddler Replacement 5 1 Set the center Twiddler speaker in place first then the two outer Twiddler speakers Take care to lower the outer Twiddler speakers straight down when setting them in place this will ensure that the gasket seats in the correct location 5 2 Wire the Twiddler speakers as shown below TWID TWID TWID T1 T2 T3 Terminal 2 Terminal 1 Wiring Diagram
7. tute replacement with the same safety characteristics as the recommended replacement part might create shock fire and or other hazards 4 This part is referenced for informational purposes only It is not stocked as a repair part Refer to the next higher assembly for a replacement part PACKAGING PART LIST Item Description Part Number Number 1 CARTON RSC 17 00X14 19X7 25 C 294090 2 PACKING EPS TOP BOTTOM 151 II 273823 01 3 BRACKET SINGLE KIT BLK UV 315948 004 BRACKET SINGLE KIT WHT UV 315948 005 4 GUIDE OWNERS 151 II 273809 5 CARD REGIST AND WARRANTY 262933 6 BAG POLY 14 38x9 87x2 mil 103351 7 COMMITMENT LETTER 251001 8 HARDWARE KIT 151 SE 292523 002 9 BAG POLY 16X18 253804 SSS J LS KA C J PLE VY 2x Figure 1 Packaging Exploded View 4 MAIN PART LIST Item Description Part Number Qty Note Number 1 LOGO BLACK 273812 01 1 LOGO WHITE 273812 02 2 TAPE FOAM 06 THK 277053 001 2 4 3 GRILLE ALUM BLACK 273810 01 1 GRILLE ALUM WHITE 273810 02 4 FOAM LOGO 275803 001 1 5 RING RETAINER LOGO 275804 001 1 6 ENCLOSURE BAFFLE BLACK 274260 001 1 4 ENCLOSURE BAFFLE WHITE 274260 002 7 TWIDDLER 60MM ENVIR 1 4 OHM 273543 002 3 8 CONNECTOR ENVIR BLK 250815 01 1 9 CONNECTOR ENVIR RED 250815 02 1 10 ENCLOSURE BACK BLACK 274261 001 1 4 ENCLOSURE
Download Pdf Manuals
Related Search