Bose L1 Pro32 Service Manual
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Bose L1 Pro32 Service Manual

Bose L1 Pro32 Service Manual

Portable line array
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L1 Pro32
Portable Line Array
Service Manual
©2021 Bose Corporation
Reference Number 840921-SM
REV 02

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Summary of Contents for Bose L1 Pro32

  • Page 1 L1 Pro32 Portable Line Array Service Manual ©2021 Bose Corporation Reference Number 840921-SM REV 02...

  • Page 2: Table Of Contents

    Figure 1. L1 Pro32 Packaging Exploded View ..................10 MAIN ASSEMBLY LIST, L1 Pro32 Power Stand................11-14 Figure 2. L1 Pro32 Power Stand Exploded View ..................15 MAIN ASSEMBLY LIST, L1 Pro32 Array Speaker................16-17 Figure 3. L1 Pro32 Array Speaker Exploded View ................17 MAIN-I/O PCB PART LIST........................18-26...

  • Page 3: Safety Information

    If it is not within the limits specified, there is the possibility of a shock hazard, and the unit must be repaired and rechecked before it is returned to the customer. CAUTION: The Bose L1 Pro32 Portable Line Array contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service.

  • Page 4: Electrostatic Discharge Sensitive (Esds) Device Handling

    WARRANTY The Bose L1 Pro32 Portable Line Array is covered by a limited 5-year transferable warranty. Units that fail within 90 days of sale should be replaced. PART LIST NOTES 1.

  • Page 5: Product Description

    1. Insert the lower array into the power stand. 2. Insert the upper array into the lower array. The L1 Pro32 can be used without the upper array. This configuration is useful when a venue ceiling cannot accommodate the height of the the L1 Pro32.
  • Page 6 L1 Pro is discoverable and illuminate solid white when a device is paired for streaming. SubMatch Output: Connect a Sub1/Sub2 bass module with a SubMatch cable. Power Input: IEC power cord connection. 6 • English L1 Pro32 Portable Line Array • Owner's Guide...
  • Page 7 Press the Standby Button on any connected Sub1/Sub2. For additional information on how to set up a Sub1/ Sub2, see the Sub1/Sub2 owner's guide at PRO.BOSE.COM. Note: When two Subs are connected to the L1 Pro32, first turn on the Sub connected directly to the L1 Pro32, then turn on the second Sub.
  • Page 8 PRODUCT DESCRIPTION...

  • Page 9: Packaging Part List

    Packaging Part List L1 Pro32 Portable Line Array (see Figure 1) Reference Description Material Number Note Designator MASTER CARTON 857774-0010 CARDBOARD SUPPORT, FLUTE 857771-0010 CARRY BAG, BASE, BLACK 856997-0110 CARDBOARD FLUTE, ARRAY 857781-0010 CARRY BAG, ARRAY, BLACK 856998-0110 SKU LABEL...
  • Page 10 Packaging Exploded View 16 17 L1 Pro32 Figure 1. Packaging Exploded View...

  • Page 11: Main Assembly List, L1 Pro32 Power Stand

    Main Part List L1 Pro32 Power Stand (see Figure 2) Item Description Material Number Vendor Part Note Number Number PC SHEET TOP COVER L463X- 843967-0110 T180700009510 W262.45MM K TOP COVER PP 94V0 BLACK K T100424800100 BRACKET VOLUME P PC+ABS 94V0...
  • Page 12 Main Part List L1 Pro32 Power Stand (see Figure 2) Item Description Material Number Vendor Part Note Number Number BOTTOM COVER PC SHEET FRONT 852458-0110 T180700009480 L117.8 K RUBBER FEET, FRONT LEFT 852453-0110 T100429800100 RUBBER FEET, FRONT RIGHT 852454-0110 T100429900100...
  • Page 13 Main Part List L1 Pro32 Power Stand (see Figure 2) Item Vendor Part Note Description Material Number Number Number SPONGE YU356 HF-1 ADHESIVE 3212 T180500028000 NUT M4XOD8.0XH4.1 0.7P STEEL NI T181000001240 ELECTR K AIR DUCT ABS 94HB BLACK K T100430500100...
  • Page 14 Main Part List L1 Pro32 Power Stand (see Figure 2) Item Vendor Part Note Description Material Number Number Number POLARITY LIGHT G KINGFA JH 94V2 T100402300100 MILK K BUTTON SELECTION PC+ABS 94V0 T100402900100 BLACK K BUTTON MUTE PC 94V2 MILK L...
  • Page 15 Power Stand Exploded View 55 2X 55 4X 12 7X 23 5X 23 13X L1 Pro32 Figure 2. Power Stand Exploded View...

  • Page 16: Main Assembly List, L1 Pro32 Array Speaker

    Main Part List L1 Pro32 Array Speaker (see Figure 3) Item Vendor Part Description Material Number Note Number Number GRILLE, ARRAY SUBASSY, UPPER, 864750-011S T130210300100 SVCE WASHER, SUS 304 T181200001410 TAPE, DOUBLE, DX6930 T180000008760 LOGO, ARRAY T100424600100 SCREW, T3XL10 T15330101F611...
  • Page 17 Main Part List L1 Pro32 Array Speaker (see Figure 3) Item Vendor Part Note Description Material Number Number Number CABLE, ARRAY, 10PIN T641700171900 ENDCAP, 3 (LOWER ARRAY) 813554-0110 T910400040040 BAFFLE, ARRAY, LOWER T100430000100 DRIVER, 2 IN 812886-0010 T911600010920 NON WOVEN, ADHESIVE, BLACK, 3M...

  • Page 18: Main-I/O Pcb Part List

    MAIN-I/O PCB PARTS LIST Resistors Reference Designator Description Material Number Note R103 RES, THICK FILM, 0603, 0.1W, 1%, 5.6K 857326-0166 R113 RES, THICK FILM, 0402, 0.063W, 1%, 6.8K 857326-0084 R116, R172, R320, R327, RES, THICK FILM, 0402, 0.063W, 1%, 10 OHM 857326-0089 R329, R336, R367, R371, R387, R389-R390, R393,...
  • Page 19 MAIN-I/O PCB PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R229A, R229B RES, THICK FILM, 0603, 0.1W, 1%, 220 OHM 857326-0126 R230A, R230B RES, THICK FILM, 0603, 0.1W, 1%, 2.1K 857326-0124 R250A, R250B, R251A, RES, THICK FILM, 0603, 0.1W, 1%, 150 OHM 857326-0107 R251B R263A, R263B...
  • Page 20 MAIN-I/O PCB PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R364, R195A, R195B, RES, THICK FILM, 0603, 0.1W, 1%, 1K 857326-0092 R202A, R202B, R208A, R208B, R209A, R209B, R211A, R211B, R247A, R247B, R252A, R252B, R253A, R253B, R257A, R257B, R260A, R260B R37, R50, R54, R68 RES, THICK FILM, 0603, 0.1W, 1%, 14K 857326-0106...
  • Page 21 MAIN-I/O PCB PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R71, R83-R84, R97 RES, THICK FILM, 0603, 0.1W, 1%, 18K 857326-0116 R72, R75, R79, R89, R92, RES, THICK FILM, 0603, 0.1W, 1%, 100 OHM 857326-0091 R96, R284, R201A, R201B, R264A, R264B, R325C, R325D, R328C, R328D, R331C, R331D, R334C,...
  • Page 22 MAIN-I/O PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note C142A, C142B, C144A, CAP, EL, LOW Z, SMT, 63V, 20%, 22uF, COMM 856727- C144B, C161A, C161B, 220M1JCD C172A, C172B C158A, C158B, C175A, CAP, C0G, 0603, 50V, 5%, 270pF, COMM 780788-271J1H C175B C162A, C162B...
  • Page 23 MAIN-I/O PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note C65, C69, C83, C95, C100, CAP, X7R, 0402, 50V, 10%, 10000pF, COMM 718866-103K1H C102, C106, C109-C118, C120, C126-C131, C202, C214, C273-C277, C285-C287, C304 C67, C76, C79, C88, CAP, C0G, 0402, 50V, 5%, 100pF, COMM 766718-101J1H C185A, C185B, C187A, C187B, C188A, C188B,...
  • Page 24 MAIN-I/O PCB PARTS LIST Inductors Reference Designator Description Material Number Note INDUCTOR, POWER, 0805, 85C, 0.25A, 20%, 722597-4R7M 4.7uH BEAD, FERRITE, 0402, 0.1A, 1800 OHM, 840686-182D COMM INDUCTOR, POWER, SMT, 1.2A, 30%, 2.2uH, 852851-2R2N COMM INDUCTOR, POWER, SMT, 0.7A, 20%, 220uH, 852883-221M COMM L31, L33-L34...
  • Page 25 MAIN-I/O PCB PARTS LIST Integrated Circuit Reference Designator Description Material Number Note IC, ADC, AUDIO, 4CH, TLV320ADC5140, 855431-0010 24WQFN IC, DAC, 24bit, 4CH, PCM4104, 48TQFP 855451-0010 IC, SCHMITT TRIGGER, BUFR, SINGLE INPT, 727321-0010 5.5V IC, uC, CORTEX-M0, 256KB, 32F091, 852528-VCT6 100LQFP IC, V-DETECT, 2.93V, APX809S-29, SOT-23 856551-0010...
  • Page 26 MAIN-I/O PCB PARTS LIST Miscellaneous Reference Designator Description Material Number Note CONN, RECP, 1.27mm C, 16P, 2R, R, SMT, ST 847826-0016 CONN, RECP, 1.27mm C, 10P, 2R, R, SMT, ST 847826-0010 J16B CONN, RECP, 1.5mm C, 11P, 1R, R, SMT, RA, 847823-0011 BEIGE J17B...

  • Page 27: Power-Amp Pcb Part List

    POWER-AMP PCB PARTS LIST Resistors Reference Designator Description Material Number Note R1, R41, R153-R155 JUMPER, CHIP, 0805 857326-0219 R100 RES, THICK FILM, 0603, 0.1W, 1%, 200K 857326-0121 R101 RES, THICK FILM, 0603, 0.1W, 1%, 18.2K 857326-0117 R102-R103 RES, THICK FILM, 0603, 0.1W, 1%, 2.4K 857326-0132 R104-R105 RES, THICK FILM, 1206, 0.25W, 1%, 100K...
  • Page 28 POWER-AMP PCB PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R30, R259-R261 RES, THICK FILM, 1206, 0.25W, 1%, 3.3M 857326-0206 R34-R35, R275 RES, THICK FILM, 0603, 0.1W, 1%, 22K 857326-0128 RES, THICK FILM, 0603, 0.1W, 1%, 220 OHM 857326-0126 RES, THICK FILM, 0603, 0.1W, 1%, 110K 857326-0099...
  • Page 29 POWER-AMP PARTS LIST Capacitors Reference Designator Description Material Number Note C101 CAP, C0G, 0603, 50V, 5%, 220pF, COMM 780788-221J1H C132, C141, C225, C229, CAP, X7R, 0402, 50V, 10%, 0.1uF, COMM 718866-104K1H C235, C258 C213-C215, C222-C223, CAP, X7R, 0402, 100V, 10%, 2200pF, COMM 718866-222K2A C227 C216, C232...
  • Page 30 POWER-AMP PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note C76-C77 CAP, X7R, HI V, FT, 1210, 500V, 10%, 0.1uF, 852058-104K2H COMM CAP, X7R, 0603, 50V, 10%, 0.47uF, COMM 718875-474K1H C8, C17, C39, C97 CAP, X7R, 0603, 50V, 5%, 10000pF, COMM 718875-103J1H C83, C100 CAP, C0G, 0805, 250V, 5%, 100pF, COMM...
  • Page 31 POWER-AMP PCB PARTS LIST Inductors Reference Designator Description Material Number Note L1, L4 TRANSFORMER, CUSTOM, HTS-PQ26F 856524-0010 L18-L19 INDUCTOR, CLASS D, POWER, 30A, 30%, 856095-6R8N 6.8uH L2-L3 INDUCTOR, CUSTOM, COMMON MODE, 852647-0010 RADIAL, 12mH INDUCTOR, POWER, SMT, 4.2A, 20%, 10uH, 852883-100M Transistors Reference Designator...
  • Page 32 POWER-AMP PCB PARTS LIST Miscellaneous Reference Designator Description Material Number Note FUSE, 8A, 250V, SLO-BLO, 5x20mm, AXIAL 317834-083B CONN, HDR, 2.54mm C, 28P, 2R, P, TH, ST, 847835-0028 BLACK CONN, HDR, 2mm C, 2P, 1R, P, SMT, ST 847747-0020 CONN, HDR, 1.25mm C, 4P, 1R, P, SMT, ST 845374-0401 CONN, HDR, 3.96mm C, 2P, 1R, P, TH, RA, 847740-0020...

  • Page 33: Volume Pcb Part List

    VOLUME PCB PARTS LIST Resistors Reference Designator Description Material Number Note R71-R72 RES, THICK FILM, 0402, 0.063W, 1%, 6.8K 857326-0084 R73-R83 RES, THICK FILM, 0402, 0.063W, 1%, 10K 857326-0021 Capacitors Reference Designator Description Material Number Note C1, C3, C8, C10, C12-C13 CAP, X7R, 0402, 25V, 10%, 0.1uF, COMM 718866-104K1E C14-C15...

  • Page 34: Disassembly Procedure

    ESD damage. Be sure to use an approved and tested ESD strap that is properly grounded to your work bench before attempting disas- sembly or repair of the L1 Pro32 Power Stand. 1. Bottom Cover Removal 1.1 Remove the Upper mid-high array and Lower mid-high array.
  • Page 35 DISASSEMBLY PROCEDURE 1.4 Use your hands and lift up on the Bottom Cover as indicated in Figure 7. 1.5 Once the Bottom Cover is out from the Top Cover, you will notice that the 2 cables & the 1 FFC cable are attaching the Main-I/O board from Air fan baffle and Pow- er-Amp Board.
  • Page 36 DISASSEMBLY PROCEDURE 2.7 On the Top cover, remove the 8 screws securing the 4 Jacks. Figure 11 (left). 2.8 Use a nut driver or socket to turn ¼ turn to remove the 1/4’ Jack socket nut out as the red arrow indicated in Figure 11 (right).
  • Page 37 6.3 Push the 3 Volume buttons out and lift off the board. Figbure 15. Volume Board Screws Removal L1 Pro32 Upper Mid-high Array Procedures 1. Grille Removal 1.1 Remove the 8 screws that secure the Endcaps from both ends of the Upper Array as indicated in Figure 16.
  • Page 38 2.3 Detach the Driver's cable by pressing the white fastener. Figure 19 (right). Figure 19. Driver Screws & Cable Removal L1 Pro32 Lower Mid-high Array Procedures 1. Grille Removal 1.1 Remove the 8 screws that secure the Endcaps from both ends of the Upper Array as indicated in Figure 20.

  • Page 39: Software Update

    Microsoft Edge products is not compatible with Thunderbolt 3 cables. Google Chrome, Mozilla Firefox On a computer, open a web browser and go to btu.bose.com. Note: Not compatible with Internet Explorer or Safari. Click Download to download the Bose Updater.
  • Page 40 SOFTWARE UPDATE If your product needs a software update, your screen will read, There’s an update available for your product! Click Update Now. Note: Do not unplug or power off your product while the update is in progress. 10. Once the update is complete, your screen will read, Your product is now up-to-date!. English •...

  • Page 41: Service Manual Revision History

    SERVICE MANUAL REVISION HISTORY Revision Changes Driven Pages (s) Date Description of Changes Level Affected 1/11/2021 Document released at revision 00 Initial Release 2/17/2022 Add some items to be spare parts Page 9 11/3/2023 Add Base match cable partnumber Page 12...
  • Page 42 Bose Corporation 100 The Mountain Road Framingham Massachusetts USA 01701 Reference Number 840921-SM REV 02, 11/2023 http://serviceops.bose.com...

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