Bose Companion 3 Series II Service Manual Download Page 30 | Manualshive

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Bose Corporation
The Mountain
Framingham Massachusetts USA 01701

P/N 297700-SM Rev. 05 09/2007 (H):

http://serviceops.bose.com

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE

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Summary of Contents for Companion 3 Series II

Page 1: ...ed with any analog audio source It has a bass module with a 6 5 inch dual voice coil woofer in a slot ported design The two satellite speakers connect to the bass module and are mounted to speaker sta...

Page 2: ...PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE Contents Safety Information 3 Electrostatic Discharge Sensitive ESD...

Page 3: ...ITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK 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...

Page 4: ...cked 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...

Page 5: ...safety purposes Failure to use a substitute replacement with the same safety characteristics as the recommended replacement part might create shock fire and or other hazards 4 The part number listed...

Page 6: ...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 1 1 2 CLEAT ABS 271817 001 1 5 3 SCREW...

Page 7: ...ER 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 30787...

Page 8: ...LK 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 BA...

Page 9: ...0W 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 R13...

Page 10: ...M 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...

Page 11: ...0W 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 R41...

Page 12: ...1001 R975 10 0K 0805 1 10W 1 133625 1002 R976 5 90K 0805 1 10W 1 133625 5901 R977 100 OHM 0805 1 10W 1 133625 1000 R978 100K 0805 1 10W 1 133625 1003 R979 10 0K 0805 1 10W 1 133625 1002 R980 4 99K 08...

Page 13: ...682 C203 033uF BOX 85C 63V 5 137127 333 C204 100 pF 0805 COG 50V 5 133622 101 C210 68pF 0603 COG 50V 5 188454 680 C225 12uF BOX 85C 50V 5 137127 124 C226 12uF BOX 85C 50V 5 137127 124 C227 18uF BOX 85...

Page 14: ...104 C328 01uF 0805 X7R 50V 10 133623 103 C329 1uF BOX 85C 50V 5 137127 104 C330 01uF 0805 X7R 50V 10 133623 103 C331 01uF 0805 X7R 50V 10 133623 103 C332 1000pF 0805 COG 50V 5 133622 102 C333 1000pF...

Page 15: ...137127 152 C963 1000pF 0805 COG 50V 5 133622 102 C964 1000pF 0805 COG 50V 5 133622 102 C965 1000pF 0805 COG 50V 5 133622 102 C966 1000pF 0805 COG 50V 5 133622 102 C968 01uF 0805 X7R 50V 10 133623 103...

Page 16: ...9 Q401 BPLR N 40V 200mA SOT23 146819 Q402 BPLR P 40V 200mA SOT23 148596 Q403 BPLR P 40V 200mA SOT23 148596 Q950 BPLR N 40V 200mA SOT23 146819 Q951 BPLR P 40V 200mA SOT23 148596 Q952 BPLR P 40V 200mA S...

Page 17: ...J301 CONN HEADER 3 POS 156 133220 03 J302 CONN JACK PHONE 3 5MM 269841 001 J305 CONN HEADER INLINE PCB MNT 4P 133220 04 J307 CONN RCA DUAL PC MOUNT 272376 001 J308 CONN MINI DIN R A 9 PIN 273227 001 E...

Page 18: ...W 5 177557 3 VR1 VARISTOR MET OX 275V 140JOULE US 273545 001 3 VR1 VARISTOR MET OX 300V 140JOULE EURO 273545 002 3 VR1 VARISTOR MET OX 175V 140JOULE JAPAN 273545 003 3 Reference Designator Description...

Page 19: ...BPLR P 40V 200mA SOT23 148596 Q5 BPLR P 40V 200mA SOT23 148596 Reference Designator Description Part Number Note F1 FUSE 4 0A 125V 60X 19 SLOBLO US FUSE 3 15A 250V 5 5X21mm SLO BLO US 135677 12 29878...

Page 20: ...aged once removed from the rear panel A replacement label must be installed during reassembly 1 3 Remove the three silver Phillips head screws located on the right hand side under the label and the fi...

Page 21: ...crews shown to remove the power supply PCB Note The PCB is mounted on stand offs which will become loose when removing the screws Note The main PCB is glued to the heat sink assembly however it can be...

Page 22: ...lt at the center of the power transformer 2 3 Remove the transformer and shield can from the bass box 3 Woofer Removal 3 1 The Grille on the bass module is glued into place The woofer is not replaceab...

Page 23: ...ctors and at the woofer mounting location 1 4 Repair any air leaks around the heat sink and connectors Replace any bass module that has air leaks around the bass box or woofer mounting location 2 Bass...

Page 24: ...lockwise and set the bass control to the center detent flat position 4 3 Listen carefully for air leaks along edges of the satellite and near the grille where the Twiddler speaker is installed 4 4 Rep...

Page 25: ...flat position 6 3 Touch the center of the control pod Verify that the LED turns from green to orange and orange to green with each touch 6 4 Verify that the sound is muted and un muted when the LED c...

Page 26: ...15 VAC secondary voltage comes back into the board on J2 The 15 VAC is converted to 15 20 volts DC by bridge rectifier BR1 Q1 Q2 and Q3 form a pre regulator to keep the DC output voltage at 14 VDC Th...

Page 27: ...he release time Also on sheet 3 of 3 U201 A 3 is the virtual ground generator The 10 volt line is divided by two R225 and R226 filtered by C970 and C235 and input to U201 The 5 volts generated by U201...

Page 28: ...s the power amplifier will be muted This prevents power up and down pops 3 0 Control Pod Remote refer to schematic diagram 272092 The remote receives the A input signal from the bass module over J4 Th...

Page 29: ...2 Part number changes Mod Assembly 307876 011 120V 307876 022 100V 307876 033 240V Control Pod 307874 002 Improved power supply and Control pod 5 7 3 08 03 Added fuse part number 298780 3150 Two versi...

Page 30: ...Bose Corporation The Mountain Framingham Massachusetts USA 01701 P N 297700 SM Rev 05 09 2007 H http serviceops bose com SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE...

Page 31: ...rol pod itself can be defective Use a test control pod to identify if the problem is with the customer s control pod or the connector J308 If the test control pod works the problem can be identified a...

Page 32: ...going in but nothing coming out replace U3 using the part number in the Service Manual Companion 3 series II Intermittent Audio from Left or Right Speakers Check J307 With the speakers connected and...

Page 33: ...he location of Q303 and orientation of the diode Also replace R336 as identified in the table below Refer to the Companion 3 Speaker System service manual part number 271885 SM Bose Corporation The Mo...

Page 34: ...resistance and create a DC offset voltage on the output of the amplifier Solution Replace C316 C317 C318 and C319 with a new type Kemet open mode ceramic and value 0 1uF part number 286499 104 This c...

Page 35: ...serviceops bose com SAFETY BULLETIN Location of C316 C317 C318 and C319 on the bottom side of 271838 001 PCB C316 and C318 C317 and C319 Location of C316 C317 C318 and C319 on the bottom side of 28006...

Page 36: ...has more uniform layering which makes the UCC capacitor more reliable Solution All units that come in for repair replace C7 using the part number listed in the table below For assembly disassembly pr...

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