Bose L1 Pro16 Service Manual
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Bose L1 Pro16 Service Manual

Bose L1 Pro16 Service Manual

Portable line array system
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L1 Pro16
Portable Line Array System
Service Manual
©2020 Bose Corporation
Reference Number 840920-SM
REV 02

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Summary of Contents for Bose L1 Pro16

  • Page 1 L1 Pro16 Portable Line Array System Service Manual ©2020 Bose Corporation Reference Number 840920-SM REV 02...

  • Page 2: Table Of Contents

    Figure 2. L1 Pro16 Power Stand Exploded View ..................12 MAIN ASSEMBLY LIST, L1 Pro16 IO Panel Assy................13-15 Figure 3. L1 Pro16 IO Panel Assy Exploded View ................16 MAIN ASSEMBLY LIST, L1 Pro16 Array Speaker.................17 Figure 4. L1 Pro16 Array Speaker Exploded View ................18 MAIN ASSEMBLY LIST, L1 Pro16 Extension..................19...
  • Page 3 CONTENTS Title Page TEST PROCEDURE...........................44-48 HI-POT TEST............................49 SOFRWARE UPDATE.........................50-51 SERVICE MANUAL REVISION HISTORY....................52...

  • Page 4: 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 Pro16 Portable Line Array System contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service.

  • Page 5: Electrostatic Discharge Sensitive (Esds) Device Handling

    WARRANTY The Bose L1 Pro16 Portable Line Array System 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 6: Product Description

    Array extension Subwoofer power stand The L1 Pro16 can be assembled without using the array extension; the mid-high array can be connected directly to the subwoofer power stand. This configuration is most useful when on an elevated stage to be...
  • Page 7 Phantom Power: Press the button to apply 48- volt power to channels 1 and 2. The LED will SPEECH illuminate white while phantom power is applied. USB Port: USB-C connector for Bose service use. PUSH Note: This port is not compatible with Thunderbolt 3 cables.
  • Page 8 PRODUCT DESCRIPTION...

  • Page 9: Packaging Part List

    Packaging Part List L1 Pro16 ( includes Array) (see Figure 1) Item Bose Part Vendor Part Description Notes Number Number Number CARTON 857754-0010 T302001480000 EXTENSION ASSY 833350-0110 T910000080320 CARRY BAG, BLACK 856994-0110 T310000077000 MANUAL BAG 865047-0010 FOAM EPE TOP WHITE 25KG/M3...

  • Page 10: Main Assembly List, L1 Pro16 Power Stand

    Main Part List L1 Pro16 Power Stand (see Figure 2) Item Description Material Vendor Part Qty/Note Number Number Number NON WOVEN SHEET FOR GRILLE 1 T182900003140 NON WOVEN SHEET FOR GRILLE T182900003150 LONG LINT SHEET FOR GRILLE 1 T182900003130 POWER STAND GRILLE...
  • Page 11 Main Part List L1 Pro16 Power Stand (see Figure 2) Item Material Vendor Part Qty/Note Description Number Number Number INLAY VOLUME SHEET T180700009350 VOLUME KNOB 841657-0110 T100403800100 RUBBER RING T180200016500 GASKET VOLUME PCB 1 T180500031000 BRACKET VOLUME PCB T100402800100 GASKET VOLUME PCB 2...
  • Page 12 Main Part List L1 Pro16 Power Stand (see Figure 2) Item Material Vendor Part Qty/Note Description Number Number Number BOTTOM SHEET LEFT 857290-0110 T180700009410 FEET LEFT T180200016530 SCREW T4.0XL10 1.41P BZN+CED T15340101F611 COATING GASKET PORT SUPPORT T180500031040 GASKET_PORT CENTER T180500031320...

  • Page 13: Main Assembly List, L1 Pro16 Io Panel Assy

    Main Part List L1 Pro16 I/O Panel Assy (see Figure 3) Item Description Material Vendor Part Qty/Note Number Number Number SCREW M3xL10_FLAT T151301030610-02 SCREW, T3xL12(FOR JACK) T153301210630 6.35MM STEREO JACK NJ6FD-VK T710200019500 NON WOVEN SHEET FOR BUT- T182900003040 TONS NON WOVEN SHEET_BLACK_AD- T182900003180 HESIVE DS11 L46XW29.8XT0.3 K...
  • Page 14 Main Part List L1 Pro16 I/O Panel Assy (see Figure 3) Item Material Vendor Part Qty/Note Description Number Number Number SCREW, T3xL10 T15330101F611 HEATSINK CHIPSET POWER T130203600200 GEL 30 T980200001430 THERMAL PAD 3 T181700001680 POWER-AMP BOARD 863628-001S T910000074770 THERMAL PAD_CONDUCTIVE...
  • Page 15 Main Part List L1 Pro16 I/O Panel Assy (see Figure 3) Item Material Vendor Part Qty/Note Description Number Number Number EVA_38 DEGREE_BLACK_ADHSIVE T180500032740 DS11 L24XW22XT0.5 K EVA 38°+PET L32.6XW28.1XT0.5MM T180500032680 POWER LIGHT GUIDE T100402400100 NUT, M4 T181000001240 EQ LIGHT GUIDE...
  • Page 16 I/O Panel Assy Exploded View L1 Pro16 Figure 3. I/O Panel Assy Exploded View...

  • Page 17: Main Assembly List, L1 Pro16 Array Speaker

    Main Part List L1 Pro16 Array Speaker (see Figure 4) Item Description Material Vendor Part Qty/Note Number Number Number SCREW T3xL12_FLAT T153301230610- END CAP ARRAY UPPER 826315-0110 T100424700100 GASKET FOR TOP ENDCAP T180500031070 NON WOVEN ARRAY GRILLE T182900003220 PUSH ON WASHER...
  • Page 18 Array Speaker Exploded View L1 Pro16 Figure 4. Array Speaker...

  • Page 19: Main Assembly List, L1 Pro16 Extension

    ADHESIVE, DS1 ARRAY LABEL T911700056740 The array extension is not repairable. The above parts are listed for reference only. Note: Bose part number is 833350-0110 (EXTENSION ASSY) as listed in the packaging parts list. L1 Pro16 Figure 5. Extension Exploded View...

  • Page 20: 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 21 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 R258A, R258B, R259A,...
  • Page 22 MAIN-I/O PCB PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R36, R43, R57, R65, RES, THICK FILM, 0805, 0.125W, 1%, 100 857326-0186 R198A, R198B, R207A, R207B 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,...
  • Page 23 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 24 MAIN-I/O PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note C158A, C158B, C175A, CAP, C0G, 0603, 50V, 5%, 270pF, COMM 780788-271J1H C175B C162A, C162B CAP, EL, SMT, 105C, 10V, 20%, 1000uF, 856752- COMM 102M1AED C165A, C165B CAP, C0G, 0603, 50V, 5%, 10pF, COMM 780788-100J1H C168A, C168B, C169A, CAP, X7R, FLEXTERM, 1206, 100V, 10%,...
  • Page 25 MAIN-I/O PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note C67, C76, C79, C88, CAP, C0G, 0402, 50V, 5%, 100pF, COMM 766718-101J1H C185A, C185B, C187A, C187B, C188A, C188B, C189A, C189B C71, C85, C216, C258C, CAP, C0G, 0603, 50V, 5%, 1000pF, COMM 780788-102J1H C258D, C266C, C266D C8, C10, C60-C61,...
  • Page 26 MAIN-I/O PCB PARTS LIST Inductors Reference Designator Description Material Number Note INDUCTOR, WW, CM, 1206, 0.2A, 2200 OHM, 855607-222 COMM BEAD, FERRITE, PWR, 0603, 1.3A, 600 OHM, 852198-601 COMM 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,...
  • Page 27 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, uC, CORTEX-M0, 256KB, 32F091, 852528-VCT6 100LQFP IC, V-DETECT, 2.93V, APX809S-29, SOT-23 856551-0010 U15A, U15B IC, ANALOG SWITCH, SPST, 16TSSOP, 852384-0010 DG411...
  • Page 28 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 CONN, HDR, 1.5mm C, 11P, 1R, P, SMT, ST, 847746-0110 BEIGE CONN, HDR, 1.5mm C, 10P, 1R, P, SMT, ST,...

  • Page 29: Power-Amp Pcb Part List

    POWER-AMP PCB PARTS LIST Resistors Reference Designator Description Material Number Note R108 RES, THICK FILM, 0603, 0.1W, 1%, 30.9K 857326-0142 R109 RES, THICK FILM, 0603, 0.1W, 1%, 133K 857326-0104 R10X, R10Y, R10Z, R11X, RES, THICK FILM, 0603, 0.1W, 1%, 22 OHM 857326-0130 R11Y, R11Z R112, R143, R181...
  • Page 30 POWER-AMP PCB PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R203X RES, THICK FILM, 0603, 0.1W, 1%, 330 OHM 857326-0143 R203Y RES, THICK FILM, 0603, 0.1W, 1%, 360 OHM 857326-0148 R203Z RES, THICK FILM, 0603, 0.1W, 1%, 390 OHM 857326-0150 R207 RES, THICK FILM, 0603, 0.1W, 1%, 47 OHM...
  • Page 31 POWER-AMP PARTS LIST Resistors (continued) Reference Designator Description Material Number Note R60, R76-R77, R87-R88, RES, THICK FILM, 0402, 0.063W, 1%, 2.2K 857326-0044 R106, R204-R205 R61, R105 RES, METAL FOIL, 1206, 1W, 1%, 0.01 OHM 755170-R010F R64, R67 RES, METAL FOIL, 1206, 1W, 1%, 0.005 OHM 755170-R005F R68, R79 JUMPER, CHIP, 1206...
  • Page 32 POWER-AMP PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note C176, C197, C199, C201 CAP, EL, SMT, 105C, 16V, 20%, 10uF, COMM 856752- 100M1CAB C17X, C17Y, C17Z, C18X, CAP, X7R, 0603, 100V, 10%, 0.1uF, COMM 718875-104K2A C18Y, C18Z, C193X, C193Y, C193Z, C194X, C194Y, C194Z, C22X, C22Y, C22Z, C23X, C23Y,...
  • Page 33 POWER AMP PCB PARTS LIST Capacitors (continued) Reference Designator Description Material Number Note CAP, C0G, 0603, 50V, 5%, 330pF, COMM 780788-331J1H C84, C95, C134X, C134Y, CAP, X7R, 0805, 100V, 10%, 0.47uF, COMM 763872-474K2A C134Z, C144X, C144Y, C144Z, C15X, C15Y, C15Z, C16X, C16Y, C16Z, C20X, C20Y, C20Z, C21X, C21Y, C21Z...
  • Page 34 POWER AMP PCB PARTS LIST Diodes Reference Designator Description Material Number Note D6X, D6Y, D6Z, D7X, D7Y, DIODE, RECT, SUPERFAST, 200V, 1A, ES1D, 856033-0200 D9, D11, D15, D17 DIODE, SINGLE, 600V, 5A, RFNL58M6S, TO- 849891-0010 LED2-LED3, LED1X, LE- DIODE, LED, 0603, 50mA, RED, VERT 851303-0010 D1Y, LED1Z ZD3-ZD5...
  • Page 35 POWER AMP PCB PARTS LIST Miscellaneous Reference Designator Description Material Number Note FUSE, 12A, 250V, SLO-BLO, 5x20mm, AXIAL 317834-123B CONN, HDR, 3.96mm C, 2P, 1R, P, TH, RA, WHITE 847740-0020 CONN, HDR, 2.54mm C, 28P, 2R, P, TH, ST, 45.8H 847836-0028 CONN, HDR, 3.96mm C, 4P, 1R, P, TH, RA, WHITE...

  • Page 36: 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 37: 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 Pro16 Portable Line Array System. 1. Enclosure Bottom Removal 1.1 Remove the Mid-high array and Array extension.
  • Page 38 DISASSEMBLY PROCEDURE 1.4 Use your hands and lift up on the Enclosure bottom as indicated in Figure 9. Figure 9. Enclosure Bottom Removal 2. Grille Removal 2.1 Perform procedure 1. 2.2 Pull the Grille out gently. Figure 10. Note: When installing the Grille, make sure the Grille inserted into the Grille guides.
  • Page 39 DISASSEMBLY PROCEDURE 3.2 Incline the Power stand to let the I/O panel assy go downwards as indicated in Figure 12. Note: Be careful the I/O panel assy is very heavy. 3.3 Once the I/O panel assy is out from the Figure 12.
  • Page 40 DISASSEMBLY PROCEDURE 4. Power-Amp Board Removal 4.1 Perform procedure 3. 4.2 On the front of the I/O panel assy, remove the 6 screws (left) and turn it over to remove the 3 screws (right) securing the Power-Amp board as indicated in Figure 15. Figure 15.
  • Page 41 DISASSEMBLY PROCEDURE 4.4 Use a spudger to separate the white glue from the edge of PCB as indicated in Figure 5. Main-I/O Board Removal 5.1 Perform step 4. On the Fire box, remove the 5 screws that secure the Main-I/O board as indicated in Figure 20 (left).
  • Page 42 Figure 24. Note: Be careful the Woofer is very heavy. Figure 24. Press the White Fastener L1 Pro16 Array Procedures 1. Grille Removal 1.1 Remove the 8 screws that secure the Endcaps from both ends of the Line Array as indicated in Figure 25.
  • Page 43 DISASSEMBLY PROCEDURE 1.2 Lift off the Top and Lower endcap. Figure Note: Be careful the cable of Lower endcap is very short. Figure 26. Lower Endcap Removal 1.3 Grasp the Grille and carefully slide the grille off of the baffle. Figure 27. Re-assembly Note: Be sure there is sufficient gasket material on the Grille to prevent buzzes as the red arrow indicated in Figure 28.
  • Page 44 TEST PROCEDURE Required Equipment: 1. Bose L1 Pro16 Power Stand and Line Array (unit under test) 2. Audio Signal Generator, Audio Precision ATS-1 or equivalent 3. iPod Touch/Smart Phone with audio test files / music installed 4. T4S or T8S (with power supply) and ToneMatch cable 5.
  • Page 45 TEST PROCEDURE 2. Line Input / Output Verification Tests Refer to the Connections and Controls diagram on the previous page for the following tests. Note: DO NOT assemble the line array to the power stand. The below test would be very loud with the array connected to the power stand.
  • Page 46 4.3 Download and install the L1 Mix app on the Smart phone or other device. It is available at the Apple App Store and Google Play. Open the app and verify that you can connect to the product and control it using the app. Note: The L1 Mix app operates via Bluetooth. Go to pro.bose.com for more app information.
  • Page 47 TEST PROCEDURE 5.2 Connect an audio input to the T4S/T8S. Verify that you can play the audio from the T4S/T8S through the power stand with no noticeable distortion. 6. Phantom Power Test 6.1 Press the STANDBY button (11) to turn on the power stand. The button should illuminate white. 6.2 Press the Phantom Power button (6) on the power stand.
  • Page 48 TEST PROCEDURE Button Extended Functions Test (continued): Product I/O User Trigger User action control “Off/Live/Music/Speech” LED House Short press the button will be ON. Select corresponding Curve and the LED to posi- House Curve. Flat/Live/DJ/ button tion-1/2/3/4 Voice LED Channel LED: To position-1 is volume, position-2 is Treble, Short press the encoder position-3 is Bass, position-4 is...
  • Page 49 HI-POT TEST 1. Hi-Pot Test Procedure THIS IS A MANDATORY TEST 1.1 Connect the positive side (hot) of the Hi-Pot tester to both terminals of the AC mains CAUTION - All units that are disassembled as input. part of a repair MUST be Hi-Pot tested before being returned to the customer.
  • Page 50 SOFTWARE UPDATE These instructions explain how to update the firmware of your L1 Pro8, L1 Pro16, Compatible Web Browsers L1 Pro32, Sub1, or Sub2. Windows Google Chrome, Mozilla Firefox, Note: A USB-C cable is required (not included with your product). The L1 Pro family of Microsoft Edge products is not compatible with Thunderbolt 3 cables.
  • Page 51 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 52 SERVICE MANUAL REVISION HISTORY Revision Changes Driven Pages (s) Date Description of Changes Level Affected 12/7/2020 Document released at revision 00 Initial Release 12/24/2020 Add Software Update P 50，51 2/17/2022 Add Item 4 - Item 10...
  • Page 53 Bose Corporation 100 The Mountain Road Framingham Massachusetts USA 01701 Reference Number 840920-SM REV 01, 2/2022 http://serviceops.bose.com...

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