Bose 901 VI free download

File name 1800 Amp.pdf

Contents Specifications ... 2 Safety Information ... 3 Electrostatic Discharge Sensitive (ESDS) Device Handling ... 4 Disassembly/Assembly Procedures ... 5-8 Test Procedures ... 9 Figure 1. 1801 Component Location ... 10 Figure 2. 1801 Side View ... 10 Figure 3. 1800 Front Panel ... 11 Figure 4. 1800 Rear View of Front Panel ... 11 Figure 5. 1801 Rear View of Front Panel ... 11 Figure 6. 1800 Rear Panel ... 12 Figure 7. 1801 Rear Panel ... 12 Part List Notes ... 13 Figure 8. 1801 Front Panel ... 13 Part List ... 14-17 Figure 9. 1801/1800 Block Diagram ... 18 Figure 10. LED PCB Layout ... 19 Figure 11. LED PCB Schematic Diagram ... 20 Figure 12. Amplifier Schematic Diagram ... 21 Figure 13. Amplifier PCB Layout ... 22 Troubleshooting Guide ... 23 Voltage Conversion Instructions ...

File name 901 VI_Part1.pdf

Contents Safety Information ... 2 901® Speaker Specifications ... 3 901 Equalizer Specifications ... 3 Speaker Disassembly/Assembly Procedures ... 4 Figure 1. Grille Removal Tool ... 4 Figure 2. Staple Location ... 4 Speaker Test Procedures ... 5 Figure 3. Schematic and Driver Location ... 5 Figure 4. Driver Insulation ... 5 901 Speaker Part List ... 6 Figure 5. 901 Speaker Exploded and Packaging View ... 6 901 EQ Disassembly/Assembly Procedures ... 7 901 Equalizer Test Procedures ... 8 Part List Notes ... 9 Voltage Conversion ... 9 Figure 6. 220V Transformer 120993 ... 9 Figure 7. 120V Transformer 120993 ... 9 Figure 8. 120V Transformer 120992 ... 9 901 Equalizer Assembly Part List ... 10 Figure 9. 901 Equalizer Assembly View ... 10 901 Equalizer Electrical Part List ... 11-13 901 Packaging Part List ...

File name 901 VI_Part2.pdf

901® SPEAKER PART LIST Item Num ber 1 2 3 Description Driver, 4.5" G asket, Driver, 4.5" G rille, Front, Dark Brown G rille, Front, Black G rille, Front, Sand G rille, Rear, Dark Brown G ille, Rear, Black G rille, Rear, Sand Logo, Brown/G old Logo, Black/Ivory Nut, Spring G asket, Rear G rille Nut, Knurled, 8-32 W asher, Flat, .174" Trim Ring, Term inal, 4" Carton, RSC Packing, End Cap Sheet, Dec O f Conform ity Screw, Tapp, 8-11 x .625, Pan Bag, Poly, 23 x 44 x 10.5 x 1.25 Foam Tape Part Num ber 124276-5 128407 136888-5 136888-3 136888-1 131436-5 131436-3 131436-1 138507 138508 125756 132323 100424-1 121646 118254 181768 131447 184056 172672-10 100652 118223 Q ty 9 9 1 4 1 5 6 7 8 9 10 11 12 13 14 - 1 1 2 2 4 1 1 2 1 27 1 12 Figure 5. 901 Speaker Exploded and Packaging View 6 901® EQ DISASSEMBLY/ASSEMBLY PROCEDURES Note: Numbers in parenthesis correspond to item call outs in Figure 9. 1. Top Cover Removal 1.1 Remove the four screws (17) that secure the top cover (12) to the chassis (11) 1.2 Lift the top cover off. 2. Top Cover Replacement 2.1 Place the top cover (12) onto the chassis (11) and secure it with four screws (17). 3. PCB Removal 3.1 Perform procedure 1 first. 3.2 Remove the six screws (20) (21) that secure the PCB to the chassis (11). 3.3 Lift the PCB up. The front and rear panel will lift up with the PCB. 4. PCB Replacement 4.1 Line up the screw holes in the PCB with the standoffs on the chassis (11). 4.2 Replace the six screws (20) (21) that secure the PCB to the chassis. 5. Front Panel Removal 5.1 Perform procedure 1 and 3 first. 5.2 Pull the slide pot knobs (7) off. The front panel (13) will slide off. 6. Front Panel Replacement 6.1 Slide the front panel (13) on so that the slide pots protrude through the front. Replace the slide pot knobs (7) by pushing them on. 7.2 Remove the four screws (19) that secure the rear panel (14) to the RCA jacks. 7.3 Use a strain relief tool to remove the strain relief (10) that secures the line cord (15) to the rear panel. 8. Rear Panel Replacement 8.1 Replace the four screws (19) that secure the rear panel (14) to the RCA jacks. 8.2 Use a strain relief tool to replace the strain relief (10) that secures the line cord (15) to the rear panel. 7. Rear Panel Removal 7.1 Perform procedure 1 and 3 first. 7 901® EQUALIZER TEST PROCEDURES 1. DC Measurement Test 1.1 Measure the DC voltages at the points listed in the following table. Refer to the schematic diagram for the test locations. Test Point TP1 TP2 TP3 TP4 2. Gain Test 2.1 Apply a 500mVrms, 100Hz signal to the left or right input. Adjust both slide pots to their center position and the bass switch to position 1. Reference a dB meter to the applied signal. 2.2 Measure the output according to the following table. Input Left/Right Output Left /Right Monitor Position Source Gain -0.9 +1.0dB 0 +0.5dB -0.9 +1.2dB No Output Left (Right) Tape Inputs Left (Right) Tape Inputs 4. Distortion Test Note: Adjust both slide pots to the maximum cut position

File name 901 VI_Part3.pdf

901® EQUALIZER ELECTRICAL PART LIST Resistors Reference Designator R1 R2 R10, 12 R101, 102, 103, 301, 302, 303 R104, 113, 142, 304, 313, 342 R111, 311 Description 2.7 K, CF, 1/2W, 5% 2.4 K, CF, 1/2W, 5% POT, SLIDE, 50K, 20%, .1W,DUAL 120K, CF, 1/4W, 5% 8.2K, CF, 1/4W, 2% Part Number 122071-2725 122071-2425 120977-503 120968-1245 120968-8222 120969-2491 120969-1301 120969-2001 120969-5491 120969-1741 120969-6651 120969-1131 120968-1042 120968-1332 120968-3922 120969-5110 120969-1002 120968-6832 120968-2732 120968-3032 120969-5621 120968-7532 120968-5632 120968-4722 120968-3632 120968-1025 See Note 2.49K, MF, 1/4W, 1% R112, 312 1.30K, MF, 1/4W, 1% R114, 314 2.00K, MF, 1/4W, 1% R115, 315 5.49K, MF, 1/4W, 1% R116, 316 1.74K, 1/4W, 1% R117, 317 6.65K, MF, 1/4W, 1% R118, 318 1.13K, MF, 1/4W, 1% R120, 143, 148, 100K , CF, 1/4W, 322, 343, 348 2% R121, 321 13K, CF, 1/4W, 2% R123, 124, 323, 324 3.9K, CF, 1/4W, 2% R125, 325 511 , MF, 1% R126, 326 10.0K, MF, 1/4W, 1% R131, 331 68K, CF, 1/4W, 2% R132, 332 27K, CF, 1/4W, 2% R133, 333 30K, CF, 1/4W, 2% R134, 334 5.62K, MF, 1/4W, 1% R135, 335 75K, CF, 1/4W, 2% R141, 341 56K, CF, 1/4W, 2% R144, 344 4.7K, CF, 1/4W, 2% R146, 346 36K, CF, 1/4W, 2% R149, 150, 151, 1KCF, 1/4W, 5% 152, 153, 154, 155, 349, 350, 351, 352, 353, 354, 355 11 901® EQUALIZER ELECTRICAL PART LIST Capacitors Reference Designator C1 C2 C3, 4 C5, 6, 15, 16 C7-C14 C17, 18, 111, 311, C101, 141, 147, 301, 341, 347 C112, 312, 131, C142, 331, 342 C113, 313 Description .0047uF, CER, 120V .0047uF, 250V 0.1uF, CER DISC 470uF, EL, 85, 35V, 20% 1uF, EL .1uF, DISC .012 uF, FILM, 85, 100V, 5% 10uF, EL, CUT 0.1uF, FILM, 85%, 100V, 5% .039uF, FILM, 85, 100V,5% 0.12uF, FILM, 85, 100V, 5% Part Number 103447 146354 119626-103 110704 119943-1R0 117502 121205 119944-100 121040 122027 120388-124 121150 121149 121145 121130 119372-560 121301 140564-391 137123-332 See Note 2 C114, 121, 122, 133, 314, 321, 322, 333 C123, 144, 323, 344 .0047uF, FILM, 85, 100V, 5% C124, 324 .0015uF, FILM, 85, 100V, 5% C132, 332 .027 uF, FILM, 85, 100V, 5% C143, 343 .0056uF, FILM, 85, 100V, 5% C146, 346 56 pF, CER, DISC, CUT C148, 348 .033uF, FILM, 5%, 100V C149, 150, 349, 350 390pF, MONO, COG, 50V, 5% C151, 351 .0033 uF, FILM, 85, 50V, 5% Semi-Conductors Reference Designator U1, 2 U3, 4 U5 U6 D2, 101, 102, 103, 104, 301, 302, 303, 304 Z1 Description OP AMP, QUAD, DIP-14, RV4156 OPAMP, DUAL, DIP-8, RC4559 VOLT REG 15V, DOS VOLT REG, 15V 1N4148 RECTIFIER, BRIDGE, 50V, 1.0A LED, 30mA, 3V, RED Part Number 120535 or 192166 108568 121116-1 121117-1 121501 112027 123487 See Note 2 12 901® EQUALIZER ELECTRICAL PART LIST Miscellaneous Reference Designator T1 S1, 2 J1, 2 P1, 2 Description TRANS, 110V TRANS, 115V/230V TRANS, 100V SWITCH, DUAL, DPDT CONN, PHONE JACK, 4 POS, FEMALE CONN, FASTON, SWAGE MNT, 1 POS, M Part Number 120992 120993 120991 107461 120646 111262 See Note 2 2 13 901® PACKAGING PART LIST Item Description Number 1 CABLE, AUDIO, 48", 2CNDCT 2 PACKING, INSERT, CSI-1 3

File name 901 VI_Part4.pdf

® ® 901® Series VI Direct/Reflecting® Loudspeaker System © 1996 Bose Corporation Service Manual Part Number 133546 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE ® ® BOSE CORPORATION THE MOUNTAIN FRAMINGHAM, MASSACHUSETTS USA 01701 P/N 133546 10/96: REV. 02 FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-367-4008