Bose-Companion3S2-mss-sm维修电路原理图.pdf

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Bose-Companion3S2-mss-sm维修电路原理图.pdf

Companion 3 Series II MultimediaSpeaker System2007 Bose CorporationService ManualReference Number 297700-SM Rev. 05Electronic copy onlyThe Companion 3 series II multimedia speaker system is a stereo system designed to be used as a computersound system. It can be used with any analog audio source. It has a bass module with a 6.5 inch dual voicecoil woofer in a slot ported design. The two satellite speakers connect to the bass module and are mountedto speaker stands. The speakers can be placed on a desk or other surface when removed from the stands. Awired remote control pod is used to control volume and mute/un-mute functions. The system also has asecond input and a stereo headphone output on the control pod.Product DescriptionRadioFans.CN 收音机爱好者资料库2WarrantyThe Bose Companion 3 series II MultiMedia Speaker System is covered by a 1-year, transferablelimited warranty.Caution: The Companion 3 series II MultiMedia Speaker System contains no user serviceable parts.To prevent warranty infractions, refer servicing to warranty service centers or factory service.Proprietary InformationTHIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF BOSECORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OFSERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSESERVICE CENTER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOTBE REPRODUCED OR USED FOR ANY OTHER PURPOSE.ContentsSafety Information.3Electrostatic Discharge Sensitive (ESDS) Device Handling.3Specifications.4Part List Notes .5Figure 1. Bass Module Assembly Exploded View.56Bass Module Assembly Parts List .6Figure 2. Amplifier Module Assembly Exploded View.7Amplifier Module Assembly Parts list.7Figure 3. Packing Exploded Veiw .8Packing Parts List .8Electrical Parts List . 9-19Main PCB Assembly Parts List. 9-17Power Supply PCB Assembly Parts List . 18-19Disassembly Procedures . 20-22Test Procedures . 23-25Theory of Operation . 26-28Revision History .29RadioFans.CN 收音机爱好者资料库3Safety Information1. Parts that have special safety characteristics are identified by the symbol on the schematicsor by special notes on the parts list. Use only replacement parts that have critical characteristicsrecommended by the manufacturer.2. Make leakage current or resistance measurements to determine that exposed parts are acceptablyinsulated from the supply circuit before returning the unit to the customer. Use the following checks toperform these measurements:A. Leakage Current Hot Check- With the unit completely reassembled, plug the AC line cord directlyinto a 120V AC outlet. (Do not use an isolation transformer during this test). Use a leakage currenttester or a metering system that complies with the American National Standards Institute (ANSI)C101.1 “Leakage Current for Appliances” and the Underwriters Laboratories (UL) 6500/IEC 60056paragraph 9.1.1. With the unit AC switch first in the ON position and then in the OFF position, mea-sure from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal parts of the unit(antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shafts, etc.) espe-cially any exposed metal parts that offer an electrical return path to the chassis. Any current measuredmust not exceed 0.5 milliamp. Reverse the unit power cord plug in the AC outlet and repeat the test.ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIALSHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUS-TOMER.B. Insulation Resistance Test Cold Check- (1) Unplug the power supply and connect a jumper wirebetween the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure the resis-tance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part onthe unit. When testing 3 wire products, the resistance measured to the product enclosure should bebetween 2 and infinite MOhms. Also, the resistance measured to exposed input/output connectorsshould be between 4 and infinite MOhms. When testing 2 wire products, the resistance measured toexposed input/output connectors should be between 4 and infinite MOhms. If it is not within the limitsspecified, there is the possibility of a shock hazard, and the unit must be repaired and recheckedbefore it is returned to the customer.Electrostatic Discharge Sensitive (ESDS)Device HandlingThis unit contains ESDS devices. We recommend the following precautions when repairing, replacingor transporting ESDS devices:Perform work at an electrically grounded work station.Wear wrist straps that connect to the station or heel straps that connect to conductive floor mats.Avoid touching the leads or contacts of ESDS devices or PC boards even if properly grounded.Handle boards by the edges only.Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert unprotecteddevices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap or plastictrays.4SpecificationsMechanical Dimensions: Bass Module: 8 5/8 “ H x 7 1/8” W x 14” D (21.8 x 18 x 35.56 cm) Satellite Speaker: (no stand) 2 1/2” H x 2 3/4” W x 2 3/8” D (6.14 x 6.86 x 6.03 cm) Control Pod: 2 1/2 “ D x 1 1/8” H (6.35 x 2.79 cm) Weight: Bass Module: 14.65 lbs (6.64 kg) unpacked Satellite Speaker: .75 lbs (0.34 kg) each Packaged System: 20.15 lbs (9.13 kg) packed Finish: Bass Module: Scratch-resistant, satin-finish vinyl Satellites: Painted polymer finish Bass Box: Slot ported Bass Box Port Tuning: 45 Hz Electrical Power Rating: USA/Canada: 115 VAC 50/60 Hz Japan: 100 VAC 50/60 Hz Euro: 230 VAC 50/60 Hz Nominal System Bandwidth: 40 Hz to 15 kHz Maximum SPL: 100 dB (A weighted) pink noise signal Output: Bass: 60 Watts Satellites: 18 Watts per channel 5Part List Notes1. This part is not normally available from Customer Service. Approval from the Field Service Manageris required before ordering.2. The individual parts on the PCBs are listed in the Electrical Part list.3. This part is critical for safety purposes. Failure to use a substitute replacement with the samesafety characteristics as the recommended replacement part might create shock, fire and/or otherhazards.4. The part number listed is an assembly part number. The individual parts of the assembly might notbe available separately.5. This part is referenced for informational purposes only. It is not stocked as a repair part. Refer tothe next higher assembly for a replacement part.6Figure 1. Bass Module Assembly Exploded View1 12 23 34 48 86 65 57 7X3X5Bass Module Assembly Exploded View *Capacitor C7 on the new power supply board may need to be replaced, see Service Bulletin 271885-B4 Item Description Part Number Qty. Note 1 BASS MODULE, ASSY, US/CANADA, 120V (Electrofoil Logo) BASS MODULE, ASSY, EURO, 230V (Electrofoil Logo) BASS MODULE, ASSY, JAPAN, 100V (Electrofoil Logo) BASS MODULE, ASSY, US/CANADA, 120V (Padprint Logo) BASS MODULE, ASSY, EURO, 230V (Padprint Logo) BASS MODULE, ASSY, JAPAN, 100V (Padprint Logo) (Complete bass module package, includes Amp Mod Assy) *300905-001 *300905-003 *300905-002 *303939-112 *303939-122 *303939-132 1112 CLEAT, ABS 271817-001 1 5 3 SCREW, 4 x 1, THDF, FLHD, 82 DEG, PH 274151-16 3 4 CLIP, SPRING, KNOB 262542 1 5 KNOB, VOL CNTL, BLK 271860-001 1 6 LABEL, I/O, US/CANADA, 120V LABEL, I/O, JAPAN, 100V LABEL, I/O, EURO, 230V 300954-001 300954-002 300954-003 17 SCREW, TF, 4 x 3/4, PAN, PH, BLK 273556-12 5 8 MOD ASSY, AMP, 120V MOD ASSY, AMP, 220V, EURO MOD ASSY, AMP, 100V JAPAN *307876-011 *307876-033 *307876-022 1113- XFORMER, TORROID, 105W, 15VDC, 7A TRANSFORMER, TOROID, 100V, 60Hz TRANSFORMER, TOROID, 230V, 50Hz 271818-001 N/A277613-001 7Item Description Part Number Qty. Note 1 PCB ASSY, MAIN 277574-001 1 5 2 BRACKET, METAL, IC 271859 1 5 3 HEATSINK, EXTRUDED, COMP 3 271856 1 5 4 CLIP, THERMAL, THERMISTOR 272964-001 1 5 5 HEAT SPREADER, ALUM 279844-001 1 5 6 SCREW, TAPP, 6-13x.625, PAN, XRC/S 172783-10 4 7 CONN, SWITCH, POWER, 3P 273115-001 1 5 8 PCB ASSY, PS, 120V, US PCB ASSY, PS, 100V, JAPAN PCB ASSY, PS, 220V, EURO *307872-011*307872-022 *307872-033 111444 *Capacitor C7 on the new power supply board may need to be replaced, see Service Bulletin 271885-B4 Figure 2. Amplifier Module Assembly12345687Amplifier Module Assembly8136789104253Figure 3. Packaging Exploded View *Capacitor C7 on the new power supply board may need to be replaced, see Service Bulletin 271885-B4 Item Number Description Part Number Qty. Notes 1 FEET, CLEAR SATELLITE 178321-04 2 2 FEET, RUBBER, BRACKET 260465 1 3 PACKING EPS, FILLER (includes both top and bottom filler) 300908-001 1 4 CONTROL POD, (NON-REPAIRABLE) 307874-002 1 5 CABLE, INPUT, 3.5MM, 6FT, BLK 271994-001 1 6 LINE CORD, 100V, BLK, JAPAN LINE CORD, 120V, BLK, US/CANADA LINE CORD, 220V, BLK, EURO LINE CORD, 230V, BLK, UK LINE CORD, 240V, BLK, AUS 264514-001 262814-001 148203 134725 284243-001 1 3 7 BASS MODULE, ASSY, US/CANADA, 120V (Electrofoil Logo) BASS MODULE, ASSY, EURO, 230V (Electrofoil Logo) BASS MODULE, ASSY, JAPAN, 100V (Electrofoil Logo) BASS MODULE, ASSY, US/CANADA, 120V (Padprint Logo) BASS MODULE, ASSY, EURO, 230V (Padprint Logo) BASS MODULE, ASSY, JAPAN, 100V (Padprint Logo) (Complete bass module package, includes Amp Mod Assy) *300905-001 *300905-003 *300905-002 *303939-112 *303939-122 *303939-132 1 8 SAT, ASSY (Electrofoil Logo) SAT, ASSY (Padprint Logo) (single array, includes speaker stand) 300766-001 303938-002 2 9 OWNERS GUIDE, 3 LANG, US/CANADA OWNERS GUIDE, 5 LANG, EURO OWNERS GUIDE, 5 LANG, AP 296583 296584 299450 1 10 CARTON, RSC, PRINTED 300911-001 1 - CARTON KIT 300911-001K 1 Packaging Part List9Reference Designator Description Part Number Note R101 1.21K, 0805, 1/10W, 1% 133625-1211 R102 1.30K, 0805, 1/10W, 1% 133625-1301 R103 9.53K, 0805, 1/10W, 1% 133625-9531 R104 10.0K, 0805, 1/10W, 1% 133625-1002 R105 127K, 0805, 1/10W, 1% 133625-1273 R106 127K, 0805, 1/10W, 1% 133625-1273 R107 10.0K, 0805, 1/10W, 1% 133625-1002 R108 10.0K, 0805, 1/10W, 1% 133625-1002 R109 2.00K, 0805, 1/10W, 1% 133625-2001 R110 10.0K, 0805, 1/10W, 1% 133625-1002 R111 10.0K, 0805, 1/10W, 1% 133625-1002 R125 2.55K, 0805, 1/10W, 1% 133625-2551 R126 200K, 0805, 1/10W, 1% 133625-2003 R127 47.5K, 0805, 1/10W, 1% 133625-4752 R128 1.10K, 0805, 1/10W, 1% 133625-1101 R129 21.5K, 0805, 1/10W, 1% 133625-2152 R130 330 OHM, 0805, 1/10W, 1% 133625-3300 R131 6.81K, 0805, 1/10W, 1% 133625-6811 R132 17.4K, 0805, 1/10W, 1% 133625-1742 R133 1.62K, 0805, 1/10W, 1% 133625-1621 R134 2.00K, 0805, 1/10W, 1% 133625-2001 R135 1.00K, 0805, 1/10W, 1% 133625-1001 R136 1.82K, 0805, 1/10W, 1% 133625-1821 R137 10.0K, 0805, 1/10W, 1% 133625-1002 R138 2.00K, 0805, 1/10W, 1% 133625-2001 R139 1.50K, 0805, 1/10W, 1% 133625-1501 R140 1.50K, 0805, 1/10W, 1% 133625-1501 R201 1.21K, 0805, 1/10W, 1% 133625-1211 R202 1.30K, 0805, 1/10W, 1% 133625-1301 R203 9.53K, 0805, 1/10W, 1% 133625-9531 R204 127K, 0805, 1/10W, 1% 133625-1273 R205 10.0K, 0805, 1/10W, 1% 133625-1002 R206 127K, 0805, 1/10W, 1% 133625-1273 R207 10.0K, 0805, 1/10W, 1% 133625-1002 R208 10.0K, 0805, 1/10W, 1% 133625-1002 R209 10.0K, 0805, 1/10W, 1% 133625-1002 R210 10.0K, 0805, 1/10W, 1% 133625-1002 R211 2.00K, 0805, 1/10W, 1% 133625-2001 R225 100K, 0805, 1/10W, 1% 133625-1003 R226 100K, 0805, 1/10W, 1% 133625-1003 R227 JUMPER, CHIP, 0805 133627 R229 2.55K, 0805, 1/10W, 1% 133625-2551 R230 200K, 0805, 1/10W, 1% 133625-2003 R231 47.5K, 0805, 1/10W, 1% 133625-4752 R232 1.10K, 0805, 1/10W, 1% 133625-1101 ELECTRICAL PARTS LISTMain PCB AssemblyResistors10Reference Designator Description Part Number Note R233 21.5K, 0805, 1/10W, 1% 133625-2152 R234 330 OHM, 0805, 1/10W, 1% 133625-3300 R235 6.81K, 0805, 1/10W, 1% 133625-6811 R236 17.4K, 0805, 1/10W, 1% 133625-1742 R237 1.62K, 0805, 1/10W, 1% 133625-1621 R238 2.00K, 0805, 1/10W, 1% 133625-2001 R239 1.00K, 0805, 1/10W, 1% 133625-1001 R240 1.82K, 0805, 1/10W, 1% 133625-1821 R241 10.0K, 0805, 1/10W, 1% 133625-1002 R242 2.00K, 0805, 1/10W, 1% 133625-2001 R243 1.50K, 0805, 1/10W, 1% 133625-1501 R244 1.50K, 0805, 1/10W, 1% 133625-1501 R301 100 OHM, 0805, 1/10W, 1% 133625-1000 R302 100 OHM, 0805, 1/10W, 1% 133625-1000 R305 10.0K, 0805, 1/10W, 1% 133625-1002 R306 10.0K, 0805, 1/10W, 1% 133625-1002 R307 1.2 OHMS, 2512, 1W, 5% 181895-1R20 R308 1K, 2512, 1W, 5% 181895-1001 R309 100 OHM, 0805, 1/10W, 1% 133625-1000 R310 100 OHM, 0805, 1/10W, 1% 133625-1000 R311 JUMPER, CHIP, 0805 133627 R312 JUMPER, CHIP, 0805 133627 R314 1.00K, 0805, 1/10W, 1% 133625-1001 R315 1.00K, 0805, 1/10W, 1% 133625-1001 R316 249 OHM, 0805, 1/10W, 1% 133625-2490 R317 249 OHM, 0805, 1/10W, 1% 133625-2490 R318 100K, 0805, 1/10W, 1% 133625-1003 R319 249 OHM, 0805, 1/10W, 1% 133625-2490 R320 1.00K, 0805, 1/10W, 1% 133625-1001 R323 487K, 0805, 1/10W, 1% 133625-4873 R324 12.1K, 0805, 1/10W, 1% 133625-1212 R325 12.1K, 0805, 1/10W, 1% 133625-1212 R327 JUMPER, CHIP, 0805 133627 R328 JUMPER, CHIP, 0805 133627 R329 16.2K, 0805, 1/10W, 1% 133625-1622 R330 78.7K, 0805, 1/10W, 1% 133625-7872 R331 2.00K, 0805, 1/10W, 1% 133625-2001 R334 100K, 0805, 1/10W, 1% 133625-1003 R335 100K, 0805, 1/10W, 1% 133625-1003 R336 10 OHM, 2512, 1W, 5% 181895-10R0 R337 162 OHM, 0805, 1/10W, 1% 133625-1620 R338 14.0K, 0805, 1/10W, 1% 133625-1402 R339 1.00K, 0805, 1/10W, 1% 133625-1001 R340 10.0K, 0805, 1/10W, 1% 133625-1002 R347 2.00K, 0805, 1/10W, 1% 133625-2001 ELECTRICAL PARTS LISTMain PCB AssemblyResistors11Reference Designator Description Part Number Note R348 2.00K, 0805, 1/10W, 1% 133625-2001 R349 JUMPER, CHIP, 0805 133627 R350 JUMPER, CHIP, 0805 133627 R351 100OHM, 0805, 1/10W, 1% 133625-1000 R352 1.00K, 0805, 1/10W, 1% 133625-1001 R353 1.00K, 0805, 1/10W, 1% 133625-1001 R354 1.00K, 0805, 1/10W, 1% 133625-1001 R355 1.00K, 0805, 1/10W, 1% 133625-1001 R356 499K, 0805, 1/10W, 1% 133625-4993 R357 10.0K, 0805, 1/10W, 1% 133625-1002 R358 1.1 OHM, SMD, FUSE, 1/10W, 5% 192349-1R1A 3R359 1.1 OHM, SMD, FUSE, 1/10W, 5% 192349-1R1A 3R360 1.1 OHM, SMD, FUSE, 1/10W, 5% 192349-1R1A 3R361 1.1 OHM, SMD, FUSE, 1/10W, 5% 192349-1R1A 3R362 JUMPER, CHIP, 0805 133627 R401 100K, 0805, 1/10W, 1% 133625-1003 R402 10.0K, 0805, 1/10W, 1% 133625-1002 R403 221 OHM, 0805, 1/10W, 1% 133625-2210 R404 10.0K, 0805, 1/10W, 1% 133625-1002 R405 1.00K, 0805, 1/10W, 1% 133625-1001 R406 1.00K, 0805, 1/10W, 1% 133625-1001 R407 1.00K, 0805, 1/10W, 1% 133625-1001 R408 1.00K, 0805, 1/10W, 1% 133625-1001 R409 5.90K, 0805, 1/10W, 1% 133625-5901 R410 5.90K, 0805, 1/10W, 1% 133625-5901 R950 2.55K, 0805, 1/10W, 1% 133625-2551 R951 4.12K, 0805, 1/10W, 1% 133625-4121 R952 1.0M, 0805, 1/10W, 1% 133625-1004 R953 10.0K, 0805, 1/10W, 1% 133625-1002 R954 750 OHM, 0805, 1/10W, 1% 133625-7500 R956 88.7K, 0805, 1/10W, 1% 133625-8872 R957 1.21K, 0805, 1/10W, 1% 133625-1211 R958 10.0K, 0805, 1/10W, 1% 133625-1002 R959 1.00K, 0805, 1/10W, 1% 133625-1001 R960 36.5K, 0805, 1/10W, 1% 133625-3652 R961 36.5K, 0805, 1/10W, 1% 133625-3652 R962 1.0M, 0805, 1/10W, 1% 133625-1004 R963 26.7K, 0805, 1/10W, 1% 133625-2672 R964 750 OHM, 0805, 1/10W, 1% 133625-7500 R965 15.4K, 0805, 1/10W, 1% 133625-1542 R966 121

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