Bose ToneMatch T4S Service Manual
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Bose ToneMatch T4S Service Manual

Bose ToneMatch T4S Service Manual

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Bose
T4S and T8S ToneMatch
Mixers
®
®
Service Manual
©2018 Bose Corporation
Reference Number 785403-SM
Revision 01

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Summary of Contents for Bose ToneMatch T4S

  • Page 1 Bose T4S and T8S ToneMatch Mixers ® ® Service Manual ©2018 Bose Corporation Reference Number 785403-SM Revision 01...

  • Page 2: Table Of Contents

    CONTENTS SAFETY INFORMATION............................3 WARRANTY................................3 Accessories................................3 Electrostatic Discharge Sensitive (ESDS) Device Handling..................3 PART LIST NOTES...............................3 SPECIFICATIONS..............................4 PRODUCT DESCRIPTION..........................5-6 Carton Contents..............................5 T4S ToneMatch Audio Engine Connector Descriptions..................6 T8S ToneMatch Audio Engine Connector Descriptions..................6 PACKAGING PART LIST............................7 Figure 1. T4S Packing View..........................7 PACKAGING PART LIST............................8 Figure 2.

  • Page 3: Safety Information

    OF SERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. WARRANTY The Bose Warranty for Professional products lasts two years from the date of purchase for electronic products, and accessories Accessories Description...

  • Page 4: Specifications

    SPECIFICATIONS 8x Combo XLR-¼" mic/line inputs 4x Combo XLR-¼" inputs 2x Aux inputs 2x Aux inputs 4x Aux sends 2x Aux sends ¼" TRS and XLR analog stereo outputs 2x ToneMatch® ports Dedicated headphone output ¼" TRS stereo outputs USB A and B for drive playback or PC Dedicated headphone output Front-panel output meters USB A and B for playback or PC...

  • Page 5: Product Description

    Sound great with integrated Bose® ToneMatch processing and zEQ, especially when connected to a Bose L1 or F1 system for full end-to-end tonal control. Play confidently on stage with these rugged ToneMatch mixers using tactile controls, easy-to-read LED displays and scene recall. ToneMatch mixers, the ultimate on-stage companions for performing artists.

  • Page 6: T4S Tonematch Audio Engine Connector Descriptions

    PRODUCT DESCRIPTION T4S ToneMatch Audio Engine Connector Descriptions Power Switch ¼” TRS Aux Input 5/6 USB Type B Connector ¼” TRS/XLR Mic/Line Inputs 1-4 USB Type A Connector Ethercon Left Main Digital Output ¼” TRS Main Outputs L and R Ethercon Power/Right Main Digital Output 1/4”...

  • Page 7: Packaging Part List

    PACKAGING PART LIST T4S ToneMatch Audio Engine (see Figure 1) Item Number Description Part Number Note CARTON, T4S, SVCE 802932-001S GUIDE, OWNERS, T4S/T8S 801230-0010 ETHERCON INTERCONNECTION CABLE (TO POWER STAND) 042536 FOAM, EPE, LEFT, T4S, SVCE 804152-001S FOAM, EPE, RIGHT, T4S, SVCE 804153-001S POLY BAG, EPE, T4S, SVCE 804151-001S...

  • Page 8: Packaging Part List

    PACKAGING PART LIST T8S ToneMatch Audio Engine (see Figure 2) Item Number Description Part Number Note CARTON, T8S, SVCE 802933-001S FOAM, EPE, RIGHT, T8S, SVCE 804148-001S ETHERCON INTERCONNECTION CABLE (TO POWER STAND) 042536 FOAM, EPE, LEFT, T8S, SVCE 804149-001S GUIDE, OWNERS, T4S/T8S 801230-0010 BAG, POLY, EPE, T8S, SVCE 804150-001S...

  • Page 9: Main Part List, T4S Mixer

    MAIN PART LIST T4S ToneMatch Audio Engine (see Figure 3) Item Description Part Number Qty. Note Number COVER ASSY, PROTECTIVE, T4, SVCE (INCLUDES ITEMS 2 797487-011S AND 3) MAGNET ASSY COVER, MAGNET, RUBBER, BLK, SVCE 797586-011S KNOB, LCD, SVCE 792627-011S KNOB, CHANNEL VOLUME, SVCE 792629-011S KNOB, MASTER VOLUME, SVCE...
  • Page 10 Figure 3. T4S ToneMatch Audio Engine Exploded View...

  • Page 11: Main Part List, T8S Mixer

    MAIN PART LIST T8S ToneMatch Audio Engine (see Figure 4) Item Number Description Part Number Qty. Note COVER ASSY, PROTECTIVE, T8, SVCE (INCLUDES ITEMS 2 797486-011S AND 3) MAGNET ASSEMBLY COVER, MAGNET, RUBBER, BLK, SVCE 797586-011S KNOB, LCD, SVCE 792627-011S KNOB, CHANNEL VOLUME, SVCE 792629-011S KNOB, MASTER VOLUME, SVCE...
  • Page 12 Figure 4. T8S ToneMatch Audio Engine Exploded View...

  • Page 13: Electrical Part Lists

    ELECTRICAL PART LIST T4S Main PCB Assembly Resistors Reference Designator Description Vendor Part Note Number CHIP, 402K OHM, 100PPM, +-1%, T502402302399 0603, WALSIN, WR06X4023FTL R2, R19, R29, R30, R31, R32, R33, R34, R36, CHIP, 10K OHM, 100PPM, +-1%, T502100202399 R61, R62, R71, R72, R73, R74, R75, R76, 0603, WALSIN R77, R78, R79, R80, R81, R82, R83, R84, R85, R205, R206, R207, R209, R212, R214,...
  • Page 14 ELECTRICAL PART LIST T4S Main PCB Assembly Resistors (continued) Reference Designator Description Vendor Part Note Number R44, R45, R46, R47, R230, R231, R232 CHIP, 33 OHM, 100PPM, +-1%, 0603, T502330A02399 WALSIN R50, R52, R238, R239, R336, R376, R412, CHIP, 22 OHM, 100PPM, +-1%, 0603, T502220A02399 R452, R540, R546, R553, R556, R565, R570, WALSIN...
  • Page 15 ELECTRICAL PART LIST T4S Main PCB Assembly Resistors (continued) Reference Designator Description Vendor Part Note Number R309, R310, R340, R341, R371, R372, R403, CHIP, 2K, OHM, 100PPM, +-1%, T502200102399 R404, R164, R165, R166, R167, R180, R181, 0603, WALSIN R182, R183, R197, R198, R199, R200 R317 CHIP, 22.1K OHM, 100PPM, +-1%, T502221202399...
  • Page 16 ELECTRICAL PART LIST T4S Main PCB Assembly Capacitors (continued) Reference Designator Description Vendor Part Note Number C235, C238, C239, C262, C263, C266, C267, CAP, X7R, .10UF, 25V, +-10%, 0402, T542011047408 C290, C291, C294, C295, C319, C320, C323, WALSIN C324, C455, C456, C461, C462, C544, C545, C546, C547, C550, C551, C552, C553, C62, C63, C42, C43, C44, C47, C114, C116, C117, C121, C199...
  • Page 17 ELECTRICAL PART LIST T4S Main PCB Assembly Capacitors (continued) Reference Designator Description Vendor Part Note Number C110 CAP, X7R, 1000P, 1KV, +-10%, 1206, T542041027H08 WALSIN C122, C123, C124, C159, C174, C176, C179, CAP, 10UF, 6.3V, +, -20%, 0603X5R, T540000002118 C182, C186, C191, C198, C201, C219, C541, WALSIN C194 EL, 220UF, 6.3V, +-20%, 6.3*5, CK-...
  • Page 18 ELECTRICAL PART LIST T4S Main PCB Assembly Inductors Reference Designator Description Vendor Part Note Number L1, L2, L4, L5 CHIP, BEAD, 120 OHM, 5A, 25%, T710500001600 0805, 100MHZ, FBMA-11-201209- 121A50T 220UH, 370MA, 5.6M, SMD, COIL T621000033800 CR, LPS6235-224MRB 15UH, 3A, 100K, SMD, SGTE, T621000003700 GPSR0640-150M 3.3UH, 2.5A, 100K, SMD, GANTON,...
  • Page 19 ELECTRICAL PART LIST T4S Main PCB Assembly Transistors Reference Designator Description Vendor Part Note Number NMOS, 60V, AO6420, TSOP, AOS T586003042546 Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, PNP, -40V, MMBT4403, SOT23, FAIR- T582002690404 Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, CHILD Q20, Q21, Q22, Q23, Q24, Q25 PMOS, 30V, AO3401A, SOT23, AOS...
  • Page 20 ELECTRICAL PART LIST T4S Main PCB Assembly Integrated Circuits (continued) Reference Designator Description Vendor Part Note Number REG, CJ7915, TO-252-2, JCET T610600099768 IC, DRIVER, TPS61169DCKR, T610900023502 SOT(5), TI IC, SP, ADUM4160BRWZ, SOIC-16, T610000059036 VR1, VR2, VR3, VR4 VR, CA, 10K, C, 20X9.8MM, T531230000119 RV09ACF-40-20F-10C10K-0068 VR17...
  • Page 21 ELECTRICAL PART LIST T4S I/O PCB Assembly Resistors Reference Designator Description Vendor Part Note Number CHIP, 75, OHM, 100PPM, +1%, 0603, T502750A02399 WALSIN R4, R5, R8, R9, R10, R11, R14, R15 CHIP, 100 OHM, 100PPM, +1%, 0402, T502100001399 WALSIN, WR04X1000FTL R6, R7, R12, R13 CHIP, 0 OHM, 0603, WALSIN, T502000002009...
  • Page 22 ELECTRICAL PART LIST T8S Main PCB Assembly Resistors Reference Designator Description Vendor Part Note Number CHIP, 402K OHM, 100PPM, +/-1%, T502402302399 0603, WALSIN, WR06X4023FTL R2, R29, R30, R31, R32, R33, R34, R36, CHIP, 10K OHM, 100PPM, +/-1%, 0603, T502100202399 R61, R62, R71, R72, R73, R74, R75, R76, WALSIN R77, R78, R79, R80, R81, R82, R83, R84, R85, R205, R206, R207, R209, R212, R214,...
  • Page 23 ELECTRICAL PART LIST T8S Main PCB Assembly Resistors (continued) Reference Designator Description Vendor Part Note Number CHIP, 13.7K OHM, 100PPM, +/-1%, T502137202399 0603, WALSIN, WR06X1372FTL CHIP, 60.4K OHM, 100PPM, +/-1%, T502604202399 0603, WALSIN, WR06X6042FTL CHIP, 22.1K OHM, 100PPM, +/-1%, T502221202399 0603, WALSIN, R35, R542, R551, R577, R582 CHIP, 12K OHM, 100PPM, +/-1%, 0603,...
  • Page 24 ELECTRICAL PART LIST T8S Main PCB Assembly Resistors (continued) Reference Designator Description Vendor Part Note Number R294_E, R294_F, R294_G, R294_H, CHIP, 1M OHM, 100PPM, +/-1%, 0603, T502100402399 R343_A, R343_B, R343_C, R343_D, WALSIN R343_E, R343_F, R343_G, R343_H, R345_A, R345_B, R345_C, R345_D, R345_E, R345_F, R345_G, R345_H, R533, R549, R557, R558, R559, R575, R584, R585...
  • Page 25 ELECTRICAL PART LIST T8S Main PCB Assembly Resistors (continued) Reference Designator Description Vendor Part Note Number R326_A, R326_B, R326_C, R326_D, CHIP, 330 OHM, 100PPM, +/-1%, 0603, T502330002399 R326_E, R326_F, R326_G, R326_H, WALSIN, WR06X3300FTL R344_A, R344_B, R344_C, R344_D, R344_E, R344_F, R344_G, R344_H, R539, R545, R564, R569 R332_A, R332_B, R332_C, R332_D, CHIP, 56K OHM, 100PPM, +/-1%, 0603,...
  • Page 26 ELECTRICAL PART LIST T8S Main PCB Assembly Capacitors (continued) Reference Designator Description Vendor Part Note Number C235_E, C235_F, C235_G, C235_H, CAP, X7R, .10UF, 25V, +/-10%, 0402, T542011047408 C238_A, C238_B, C238_C, C238_D, WALSIN C238_E, C238_F, C238_G, C238_H, C239_A, C239_B, C239_C, C239_D, C239_E, C239_F, C239_G, C239_H, C455, C456, C461, C462, C544, C545, C546, C547, C550, C551, C552, C553, C554,...
  • Page 27 ELECTRICAL PART LIST T8S Main PCB Assembly Capacitors (continued) Reference Designator Description Vendor Part Note Number CAP, NPO, 12PF, 50V, +/-5%, 0402, T541011206508 WALSIN C62, C63, C121 CAP, NPO, 22PF, 50V, +/-5%, 0603, T541022206508 WALSIN C81, C82, C157, C158 CAP, NPO, 18PF, 50V, +/-5%, 0603, T541021806508 WALSIN C85, C89...
  • Page 28 ELECTRICAL PART LIST T8S Main PCB Assembly Capacitors (continued) Reference Designator Description Vendor Part Note Number C227_A, C227_B, C227_C, C227_D, CAP, NPO, 2700P, 50V, +/-5%, 0603, T541022726508 C227_E, C227_F, C227_G, C227_H, C444, WALSIN C446, C447, C464, C466, C469 C228_A, C228_B, C228_C, C228_D, CAP, NPO, 470PF, 50V, +/-5%, 0603, T541024716508 C228_E, C228_F, C228_G, C228_H, C445,...
  • Page 29 ELECTRICAL PART LIST T8S Main PCB Assembly Diodes Reference Designator Description Vendor Part Note Number SWITCH, 100V, 1A, S100W, PAN T572005252110 D2_A, D2_B, D2_C, D2_D, D2_E, D2_F, SWITCH, 70V, 215MA, BAV99LT1G, T572003550122 D2_G, D2_H, D3_A, D3_B, D3_C, D3_D, ON-SEMI D3_E, D3_F, D3_G, D3_H, D4_A, D4_B, D4_C, D4_D, D4_E, D4_F, D4_G, D4_H, D5_A, D5_B, D5_C, D5_D, D5_E, D5_F, D5_G, D5_H, D6_A, D6_B, D6_C, D6_D,...
  • Page 30 ELECTRICAL PART LIST T8S Main PCB Assembly Diodes Reference Designator Description Vendor Part Note Number Q5_A, Q5_B, Q5_C, Q5_D, Q5_E, Q5_F, PNP, -40V, MMBT4403, SOT23, FAIR- T582002690404 Q5_G, Q5_H, Q6_A, Q6_B, Q6_C, Q6_D, CHILD Q6_E, Q6_F, Q6_G, Q6_H, Q7_A, Q7_B, Q7_C, Q7_D, Q7_E, Q7_F, Q7_G, Q7_H PMOS, 30V, AO3401A, SOT23, AOS T585001940446...
  • Page 31 ELECTRICAL PART LIST T8S Main PCB Assembly Integrated Circuits (continued) Reference Designator Description Vendor Part Note Number U36_A, U36_B, U36_C, U36_D, U36_E, IC, OP-AMP, NJM4580, SOP-8, JRC T610500010706 U36_F, U36_G, U36_H, U43, U52, U54, U58, U60, U61, U62, U63, U64, U65, U53, U55, U57, U59 IC, OP-AMP, TL072CDT, SO8, ST T610500028202...
  • Page 32 ELECTRICAL PART LIST T8S I/O PCB Assembly Resistors Reference Designator Description Vendor Part Note Number R2, R4, R7, R8, R9, R10, R13, R14, R15, CHIP, 100 OHM, 100PPM, +1%, 0402, T502100001399 R16, R19, R20, R21, R22, R25, R26 WALS, WR04X1000FTL CHIP, 75 OHM, 100PPM, +1%, 0603, T502750A02399 WALSIN...

  • Page 33: Disassembly Procedures

    DISASSEMBLY PROCEDURE T4S Mixer 1. Bottom Housing Removal 1.1 Place the T4S onto a soft surface. Remove the four feet and the one rubber screw cover, located near the product label. See photo at right. Remove the five screws that secure the bottom housing to the top housing.
  • Page 34 DISASSEMBLY PROCEDURE 3. Main PCB Removal 3.1 On the front panel, carefully remove the fourteen knobs by pulling them straight off. 3.2 Perform procedure 2 to remove the I/O PCB assembly. 3.2 On the I/O panel, remove the six plastic nuts that secure the 1/4”...
  • Page 35 DISASSEMBLY PROCEDURE 4. LCD Display Assembly Removal 4.1 Perform procedure 3 to remove the Main PCB assembly. 4.2 Using a pair of needle-nose pliers, compress the legs of the nylon standoffs that secure the LCD Display assembly the Main PCB assembly. 4.3 Carefully lift up the LCD Display assembly.

  • Page 36: T8S Mixer

    DISASSEMBLY PROCEDURE T8S Mixer 1. Bottom Housing Removal 1.1 Place the T8S onto a soft surface. Remove the four feet and the three rubber screw covers, located along the centerline of the product. See photo at right. Remove the seven screws that secure the bottom housing to the top housing.
  • Page 37 DISASSEMBLY PROCEDURE 3.2 On the I/O panel, remove the eight plastic nuts that secure the 1/4” TRS jacks. 3.3 On the Main PCB, disconnect the wiring harness for the power switch at connector P2. 3.4 Remove the two screws that secure the Main PCB to the top housing.

  • Page 38: Test Procedures

    T1 power supply, product code 042533 • Audio Signal Generator, Audio Precision ATS-1 Dual Domain or similar (see tests 15 and 16 for note) • Bose L1 Model II or L1 Model 1S Power Stand with Arrays (optional, see tests 15 and 16) ® •...
  • Page 39 TEST PROCEDURE 3. THD+N Test 3.1 Place all unmeasured input Trim controls to minimum. 3.2 Rotate the channel 1 Trim control to maximum (fully CW). Apply a balanced 1 kHz, -41dBu sine wave to the channel 1 XLR input. 3.3 Measure the THD+N level at the 1/4” TRS Main Output L and R jacks. It should be <0.05%. 3.4 Repeat steps 3.1 to 3.3 for the remaining inputs.
  • Page 40 TEST PROCEDURE 7.3 Measure the THD+N level at the 1/4” TRS Main Output L and R jacks. It should be <0.05%. 7.4 Repeat steps 7.1 to 7.3 for the remaining inputs. Aux Inputs 5/6 (T4S) or 9/10 (T8S) 8. Gain Test 8.1 Apply a balanced 1 kHz, +6.5dBu sine wave to the channel 5 AUX TRS input.
  • Page 41 IMPORTANT NOTE: Tests 15 and 16 require a digital dB meter, such as an Audio Precision ATS-1 Dual Domain, an ATS-2 or an APx515. If you do not have this equipment, you may simply connect the T4S Digital Main Output to a Bose L1 Model II or L1 Model 1S power stand with the arrays installed and ®...
  • Page 42 TEST PROCEDURE 16. Frequency Response Test 16.1 Rotate the channel 1 Trim control to maximum (fully CW). Apply a balanced 1 kHz, -41dBu sine wave to the channel 1 XLR input. 16.2 Measure the output level at the Ethercon Main Output L and R jacks. It should be -7.4dBFS +/-0.5dBFS.
  • Page 43 TEST PROCEDURE 20. THD+N Test 20.1 Place all unmeasured input Trim controls to minimum. 20.2 Rotate the channel 1 Trim control to maximum (fully CW). Apply a balanced 1 kHz, -41dBu sine wave to the channel 1 XLR input. 20.3 Measure the THD+N level at the 1/4” TRS Main Output L and R jacks. It should be <0.05%. 20.4 Repeat steps 20.1 to 20.3 for the remaining inputs.
  • Page 44 TEST PROCEDURE 25. USB Type B Jack Test 25.1 The USB B port is automatically tested by using a USB A/B cable to perform the firmware update on the Mixer. This ensures that a communication connection has been made between the PC and the unit. The firmware update process is outlined on pages 45 and 46 of this manual.

  • Page 45: Firmware Update Procedure S

    3. USB A/B cable Downloading the L1 Updater Software Go to the Bose Musicians Portable PA Community forum page at http://www.bose.com/musicians. Click on Downloads. Select L1 Software Updater. You will be taken to the Downloads page. Select the version for PC or Mac for your computer type. Save the .zip file to a known location on your PC.
  • Page 46 FIRMWARE UPDATE PROCEDURE 6. While the update is in process, you will see a progress bar. The update process takes about seven minutes to complete. CAUTION: DO NOT turn off/disconnect power or disconnect the USB cable during this update. 7. Once the update is complete, you will see the Update Done dialog box stating that the update process was successful.

  • Page 47: Service Manual Revision History

    SERVICE MANUAL REVISION HISTORY Revision Change Driven Date Description of Change Page(s) Affected Level 2/20/2018 Document released at revision 00 Initial Release 5/10/18 Updated test procedures Test Change 41 - 42...
  • Page 48 Bose Corporation 100 The Mountain Road Framingham Massachusetts USA 01701 Reference Number 785403-SM REV 01; 5/2018 http://serviceops.bose.com...

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