Bose Panaray 502A Service Manual
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Bose Panaray 502A Service Manual

Array, bass box and controller
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®
Panaray
Sound System
502 Array, Bass Box and Controller
©2006 Bose Corporation
Service Manual
Reference Number 170310-SM Rev. 03
Electronic Copy Only

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Summary of Contents for Bose Panaray 502A

  • Page 1 ® Panaray Sound System 502 Array, Bass Box and Controller ©2006 Bose Corporation Service Manual Reference Number 170310-SM Rev. 03 Electronic Copy Only...

  • Page 2: Table Of Contents

    CONTENTS Contents ............................2-3 Safety Information..........................4 Warranty .............................4 Specifications ..........................5-7 ® A Array Specifications .......................5 502B Bass Module Specifications ....................6 502C Controller Specifications ....................6-7 Electrostatic Discharge Sensitive (ESDS) Device Handling ............8 Parts Lists and Exploded Views ......................8 Parts List Notes ..........................9 Packaging Part List, 502A Array (see Figure 1) ................10 Figure 1.

  • Page 3: Contents

    CONTENTS 502B CSB-5B Suspension Bracket Kit Parts List (see Figure 21) ..........48 Figure 21. CSB-5B Suspension Bracket Kit ...................48 502A WBP-5 Bi-Pivot Bracket Kit Parts List (see Figure 22) ............49 Figure 22. WBP-5 Bi-Pivot Bracket Kit ...................49 502A WCB-5 U-Bracket Kit Parts List (see Figure 23) ..............50 Figure 23.

  • Page 4: Safety Information

    THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. WARRANTY The Bose Panaray 502C Controller is covered by a limited 1-year warranty. The Panaray 502A array speaker and Panaray 502B bass module are covered by a 5-year limited warranty.

  • Page 5: Specifications

    SPECIFICATIONS 502A Array Specifications Dimensions: 23.5"H x 5.75"W x 6.73"D (59.7x14.6x17.1 cm) Weight: 15 lbs. (6.8 kg.) Transducer Complement: 5 - 4.5 " (11.4 cm) drivers Enclosure Material: High-impact polystyrene Nominal Impedance: 8 Ohms, 6.4 Ohms minimum Sensitivity: 90 dB SPL (1W, 1m, 130 Hz-15 kHz) Maximum Acoustic Output: 112 dB SPL average, 121 dB SPL peak Frequency Range:...

  • Page 6: 502B Bass Module Specifications

    SPECIFICATIONS 502B Bass Module Specifications Dimensions: 31.0"H x 14.0"W x 15.5"D (78.7x 35.6x 39.4 cm) Weight: 80 lbs. (36.4 kg.) Transducer Complement: 1 - 12" woofer (high power) Enclosure Material: 3/4" resin-core, vinyl wrapped Port: High-impact polystyrene Nominal Impedance: 8 Ohms, 6.4 Ohms minimum Sensitivity: 90 dB SPL (1W, 1m, 55 Hz-150 Hz) Maximum Acoustic Output:...
  • Page 7 SPECIFICATIONS 502C Controller Specifications (continued) Input Impedance: Balanced input, -10 dB level - 14k Ohms Balanced input, +4 dB level - 6k Ohms Unbalanced input (+ input), -10 dB level: 12k Ohms Unbalanced input (+ input), +4 dB level: 4k Ohms Output Impedance: 100 Ohms nominal Input Level:...

  • Page 8: Electrostatic Discharge Sensitive (Esds) Device Handling

    NOTE: The notes section for the entire parts list is contained on page 8. ® CAUTION: Use only accessory kit parts that are specified by Bose Corporation in this service manual. Substitute parts may not have the same safety characteristicsas the original parts.

  • Page 9: Parts List Notes

    PARTS LIST NOTES 1. This part is not normally available from Customer Service. Approval from the Field Service Manager is required before ordering. 2. This part splits into 2 pieces. Each piece fits onto a corner of the bass box. 3.

  • Page 10: Packaging Part List, 502A Array (See Figure 1)

    PACKAGING PART LIST 502A Array (see Figure 1) Item Description XLR and Barrier *Speakon Note Number Version Product Version code 003840, Product 004931, 004932 code and 004933 040170 and 040171 ® Literature Kit-Panaray 149271 which consists of: Polybag 103351 103351 Owner's Manual 143585 292721...

  • Page 11: Packaging Part List, 502B Bass Box (See Figure 2)

    PACKAGING PART LIST 502B Bass Box (see Figure 2) ® Item Description XLR and Barrier *Speakon Note Number Version Version PC PC 003841, 040090 and 019769, 004934, 040091 004935, 004936, 007698 ® Literature Kit-Panaray 149271 Which consists of: Polybag 103351 103351 Owners Manual 143585...

  • Page 12: Packaging Part List, 502C Controller (See Figure 3)

    PACKAGING PART LIST 502C Controller (see Figure 3) Item Description Part Number Qty. Note Number Crease Sheet, Die Cut 149823 ® Literature Kit, Panaray , Consists of: 149271 Poly bag 103351 Owner's Manual 143585 Owner's Manual (German language) 171941 Card, Registration 122157 List, Warranty Service 122766...

  • Page 13: Main Part List, 502A Array (See Figure 4)

    MAIN PART LIST 502A Array (see Figure 4) Item Description Part Number Qty. Note Number Grille, Pro Gray 142342-01 Grille, Arctic White 142342-02 Insert, Threaded, Mach, M8x10.5, Gray 143552-01 Insert, Threaded, Mach, M8x10.5, Wht 143552-02 Nameplate, Dark Gray/Arctic White 130718-1B21 Nameplate, Dark Arctic White/Dark Gray 130718-1C31 Nut, Push-On,.078...
  • Page 14 24 2x 15 4x XLR VARIATION SHOWN 19 18 Figure 4. 502A Array Exploded View...

  • Page 15: Main Part List, 502B Bass Box (See Figures 5 And 6)

    MAIN PART LIST 502B Bass Box (see Figures 5 and 6) Item Description Part Number Qty. Note Number Cap, Top/Bottom, Gray 182582-0P Cap, Top/Bottom, White 294312 Bolt-Mounting 143580 Acoustic Foam 145705 Bracket, Structural 290979 Nut, Hex, Mach Screw, 7/16-14 290980-4414 Washer, Lock, Ext, Stl, Zinc Plate 108261-43 Screw, HIRS, 8-10x3/4, HEXW, Hex...
  • Page 16 Figure 5. 502B Bass Box Exploded View...
  • Page 17 XLR Version Barrier Strip Version 16 17 18 Speakon® Version Figure 6. 502B Access Panel and Connector Views...

  • Page 18: Main Part List, 502C Controller (Chassis With Removable Front Panel) (See Figure 7)

    MAIN PART LIST 502C Controller (removable front panel version) (see Figure 7) Item Description Part Number Qty. Note Number Cover, Chassis, 502C 173003 Screw, Tapp, 4-40x.375, PAN, TORX 170284-06 (US/Can.) Screw, Tapp, 4-40x.375, PAN, TORX 170284-06 9,10 (Euro/UK/Aus/Japan) Plate, Front, Rack Mount Kit 173004 Screw, Tapp, 4-40x.312, BTN, XREC 170285-05...
  • Page 19 Figure 7. 502C Controller Exploded View (removable front panel version)

  • Page 20: Main Part List, 502C Controller (One-Piece Chassis) (See Figure 8)

    MAIN PART LIST 502C Controller (one-piece chassis version) (see Figure 8) Item Description Part Number Qty/ Note Number Assy. Screw, 6-32, Mach, Flat, Xrec 190623-008 Screw, Mach, 4-40x.25, PAN, XREC 103140-04 Clip, Heatsink 188599 XFMR, US/Canada/Japan, 100V/120V 180128-1 EUR/AUS/UK, 220V/240V 180128-2 Nut, Hex, 8-32, Keps 118260-08...

  • Page 21: Electrical Part Lists

    ELECTRICAL PART LIST 502C Controller Main PCB Assembly Resistors Reference Description Part Number Note Designator 0 Ohm Jumper, Chip 124896 0 Ohm Jumper, Chip 124896 0 Ohm Jumper, Chip 124896 0 Ohm Jumper, Chip 124896 0 Ohm Jumper, Chip 124896 0 Ohm Jumper, Chip 124896 0 Ohm Jumper, Chip...
  • Page 22 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Resistors (continued) Reference Description Part Number Note Designator 3.92K, 1/8W, 1%, Chip 124894-3921 2.43K, 1/8W, 1%, Chip 124894-2431 2K, 1/8W, 1%, Chip 124894-2001 41.2K, 1/8W, 1%, Chip 124894-4122 3.01K, 1/8W, 1%, Chip 124894-3011 6.81K, 1/8W, 1%, Chip 124894-6811...
  • Page 23 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Resistors (continued) Reference Description Part Number Note Designator 2.21K, 1/8W, 1%, Chip 124894-2211 1.91K, 1/8W, 1%, Chip 124894-1911 43.2K, 1/8W, 1%, Chip 124894-4322 3.92K, 1/8W, 1%, Chip 124894-3921 2.43K, 1/8W, 1%, Chip 124894-2431 2K, 1/8W, 1%, Chip 124894-2001...
  • Page 24 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Resistors (continued) Reference Description Part Number Note Designator R150 47 Ohm, 1/4W, 52mm, CF, 2% 121243-1214702 R151 47 Ohm, 1/4W, 52mm, CF, 2% 121243-1214702 R152 47 Ohm, 1/4W, 52mm, CF, 2% 121243-1214702 R153 47 Ohm, 1/4W, 52mm, CF, 2% 121243-1214702...
  • Page 25 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Capacitors Reference Description Part Number Note Designator 1000pF, 10%, Chip 124956-1022 1000pF, 10%, Chip 124956-1022 22µF, 35V, Electrolytic 119944-220 22µF, 35V, Electrolytic 119944-220 0.1µF, +80/-20%, Chip 124959-104 0.1µF, +80/-20%, Chip 124959-104 100pF, 5%, Chip 124956-1012 100pF, 5%, Chip 124956-1012...
  • Page 26 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Capacitors (continued) Reference Description Part Number Note Designator 680pF, 10%, Ceramic 137269-681 .01µF, 5%, Film 137127-103 0.0047µF, 5%, Film 137127-472 0.0047µF, 5%, Film 137127-472 .01µF, 5%, Film 137127-103 .01µF, 5%, Film 137127-103 0.1µF, +80/-20%, Chip 124959-104 0.1µF, +80/-20%, Chip...
  • Page 27 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Capacitors (continued) Reference Description Part Number Note Designator C109 .0047µF,20%,Metallized Paper, 146354 (Euro/UK/Aus/Japan) C110 10,000pF, +80/-20%, Chip 124959-103 C111 10,000pF, +80/-20%, Chip 124959-103 C112 10,000pF, +80/-20%, Chip 124959-103 C113 2200µF, 50V, 105C, Electrolytic, 20% 144000-222H C114 2200µF, 50V, 105C, Electrolytic, 20%...
  • Page 28 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Diodes Reference Description Part Number Note Designator Bridge, 100V, 1A 143952 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4531, 5mm 136603 1N4148, 52mm, Axial...
  • Page 29 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Transistors Reference Description Part Number Note Designator NPN, 2SC2812, 50T23 134741 Integrated Circuits Reference Description Part Number Note Designator Op Amp, Quad 144008 Op Amp, Quad 144008 Op Amp, Quad 144008 Op Amp, Quad 144008 Op Amp, Quad 144008...
  • Page 30 ELECTRICAL PART LIST 502C Controller Main PCB Assembly Connectors Reference Description Part Number Note Designator Harness Assy, Quick Disconnect 143968 Harness Assy, Quick Disconnect 143968 XLR, Female (Euro/Japan/UK/Aus) 189222-001 XLR, Female (Euro/Japan/UK/Aus) 189222-001 Header, 2 pin 143963 Header, 2 pin 143963 Header 143965...

  • Page 31: Disassembly Procedures

    DISASSEMBLY PROCEDURES 502A Array Procedures 4. Connector Panel Removal 4.1 Remove 4 screws (15) that secure the Note: Refer to Figure 9 for the following panel (16) to the array. procedures. 4.2 Grasp the panel and pull it away from 1.
  • Page 32 24 2x 15 4x XLR VARIATION SHOWN 19 18 Figure 9. 502A Array Exploded View...
  • Page 33 SPEAKON BARRIER Figure 10. 502A Array Wiring Diagram...

  • Page 34: 502B Bass Module Procedures

    DISASSEMBLY PROCEDURES 7. Speakon ® Connector Removal 10.3 Make a note of the wiring configuration and disconnect the wires from the woofer 7.1 Remove the 4 screws that secure the terminals. Carefully pull the woofer away connector to the connector panel (16). from the unit.

  • Page 35: 502C Controller Disassembly Procedures

    DISASSEMBLY PROCEDURES 14. Speakon ® Connector Removal 16.2 Remove the 2 top screws (4) that secure the top cover to the front plate (3). 14.1 Remove the 4 screws that secure the Earlier units will have 3 screws on top. connector to the access panel.
  • Page 36 DISASSEMBLY PROCEDURES 18. Transformer Removal 17. XLR Connector Removal 18.1 Remove the top cover using procedure 17.1 Remove the top cover and front panel using procedure 16. 18.2 Disconnect P2 (transformer primary) 17.2 Remove 6 screws (2) that secure the and P3 (transformer secondary) from the connectors to the chassis.
  • Page 37 Figure 11. 502B Bass Module Exploded View...
  • Page 38 XLR Version Barrier Strip Version 16 17 18 Figure 12. 502B Bass Module Connector and Access Panel...
  • Page 39 SPEAKON WIRE DIAGRAM Figure 13. 502B Bass Module Wiring Diagrams...
  • Page 40 Figure 14. 502C Controller Exploded View (removable front panel version) C114 C113 Figure 15. 502C Controller Exploded View (one-piece chassis version)

  • Page 41: Test Procedures

    TEST PROCEDURES 502A Array Test Procedures 3. Shading Network Test 3.1 Apply a 2 Vrms, 2.5 kHz signal to the Note: All 502A procedures involve connect- array's input terminals. ing test equipment to the array's input terminals. For the XLR input pin assignment, 3.2 Connect a 3 Ohm, 1W resistor in series see Figure 16 below.

  • Page 42: 502C Controller Test Procedures

    TEST PROCEDURES 1.3 If the woofer cone deflects inward, 502C Controller Test Procedures check all wiring. Test Setup 2. Woofer Air Leak/Rub and Tick Test Input Connections: Connect an audio 2.1 Apply a 20 Vrms, 10 Hz signal to the signal generator to the positive (+) and 502B's input terminals.
  • Page 43 TEST PROCEDURES 2. Gain Test Frequency (Hz) Response (dB) -24.5 ± 2.0 2.1 Set the input switches to -10 dB. +4.3 ± 1.5 2.2 Apply a 100 mVrms, 600 Hz signal to the 2200 +3.5 ± 1.5 input terminals. 5000 +12.5 ±...
  • Page 44 TEST PROCEDURES 7.3 Measure the distortion across the HF 11. High Frequency Distortion (Bi-Amp outputs. It should be - .1%. Mode) 8. High Frequency Distortion (Full Range 11.1 Apply a 890 mVrms, 5 kHz signal to the Mode) 502C input terminals. 8.1 Apply a 890 mVrms, 5 kHz signal to the 11.2 Measure the distortion across the HF 502C input terminals.
  • Page 45 NORM – – – – – – ® COMMERCIAL SER. NO. D.O.M. BOSE CORPORATION, FRAMINGHAM, MA 01701-9168 CH 1 CH 2 CH 1 CH 2 SOUND ENGINEERED AND MANUFACTURED IN U.S.A. EQUIPMENT PROTECTED BY U.S. PATENT 3,038,964 Mode Input Bass mono...

  • Page 46: Accessory Kit Part Lists

    ACCESSORY KIT PART LIST 502A PSA-5 Stand Adapter Parts List (see Figure 19) Item Description Part Number Qty. Note Number Mounting Bracket 148513 Hardware Kit, Consists of: 173535 Thumbscrew, M8x25mm, Black 173355 Washer, Thumbscrew 173356 Bolt, Button Head, 5mm, M8x12mm, Black 148526-02 Bolt, Button Head, 5mm, M8x20mm, Black 148526-10...

  • Page 47: 502A Csb-5A Suspension Bracket Kit Parts List (See Figure 20)

    ACCESSORY KIT PART LIST 502A CSB-5A Suspension Bracket Kit Parts List (see Figure 20) Item Description Part Number Qty. Note Number Suspension Bracket 148519 Hardware Kit, Consists of: 173536 Screw, Mach., Socket Cap, M8x12mm 148514 Lock washer, M8 173450 Quick Link, 1/8" 148520-1 Allen Wrench, 6mmx3"...

  • Page 48: 502B Csb-5B Suspension Bracket Kit Parts List (See Figure 21)

    ACCESSORY KIT PART LIST 502B CSB-5B Suspension Bracket Kit Parts List (see Figure 21) Item Description Part Number Qty. Note Number Left Angle Bracket 147005-1 Right Angle Bracket 147005-2 Hardware Kit, Consists of: 173537 Screw, Hex Head, Mach., M8x20mm 148545-10 Lock washer, M8 173450 Quick Link, 3/16"...

  • Page 49: 502A Wbp-5 Bi-Pivot Bracket Kit Parts List (See Figure 22)

    ACCESSORY KIT PART LIST 502A WBP-5 Bi-Pivot Bracket Kit Parts List (see Figure 22) Item Description Part Number Qty. Note Number Wall Plate Assembly 146995 Attachment Plate, Stamped Metal 149030 Hardware Kit, Consists of: 173534 Screw, Socket Head Cap, M8x25mm 148505 Nut, Elastic, 8mm 148542...

  • Page 50: 502A Wcb-5 U-Bracket Kit Parts List (See Figure 23)

    ACCESSORY KIT PART LIST 502A WCB-5 U-Bracket Kit Parts List (see Figure 23) Item Description Part Number Qty. Note Number U-Bracket 148531 Bushing 148532 Hardware Kit, Consists of: 173533 Locking Bracket 148536 Safety Cable 148506 Bolt, Button Head, 5mm, M8x12mm 148526-02 Bolt, Button Head, 5mm, M8x20mm 148526-10...

  • Page 51: 502A Cvt-5 Transformer Assembly Kit Parts List (Figure 24)

    ACCESSORY KIT PART LIST 502A CVT-5 Transformer Assembly Kit Parts List (Figure 24) ® Item Description XLR and Barrier Speakon Note Number Version, PC Version, 003841, 019769, PC 040170 004934, 004935, and 040171 004936, 007698 CVT-5 XFMR Assy Kit (Gray) 007699 040089 CVT-5 XFMR Assy Kit (White)
  • Page 52 Figure 25. CVT-5 Schematic...

  • Page 53: Theory Of Operation

    THEORY OF OPERATION 502C Controller The following provides an overview of 502C electrical operation. Equalization curves are refer- enced and are located at the end of this section. Additionally, the 502C block diagram and schematic should be referenced as required. 1.

  • Page 54: Output Stage

    THEORY OF OPERATION 6. Output stage NOTE: The components mentioned in this paragraph are for the high frequency output only. The output stage is compatible with balanced signal transmission systems. Inverting op-amp stage U9 (pins 1, 2, and 3) provides the output signal. Diodes D9, D10, D29 and D30 provide output clamping to protect against overvoltage and ESD.
  • Page 55 THEORY OF OPERATION Troubleshooting Tips (continued) With a nominal AC power input voltage (100, 115, or 230, depending on the country), the AC voltages at the transformer secondary between P3-1 and P3-3 should be 41.3 Vrms. With a cold (i.e.-room temperature) power transformer, you should expect primary and second- ary resistances of: For the 100 VAC version: between P2-1 and P2-2: 41.8 Ohms...

  • Page 56: 502C Controller Eq Curves

    Gain in dB Response Frequency in Hz Output is measured from U7 pins 1 and 14. 502C controls are set at: Mode 2 (Bi-amp), Output Mode: Normal, Low Frequency level: +3dB, and Input Level: +4dB. Figure 26. Low Frequency EQ Gain in dB Frequency in Hz...
  • Page 57 Gain in dB Frequency in Hz Output is measured from U8 pins 1 and 14. 502C controls set as in Figure 26. Figure 28. Low Frequency EQ Gain in dB Frequency in Hz Output is measured from U8 pins 7 and 8. 502C controls set as in Figure 26. Figure 29.
  • Page 58 Gain in dB Frequency in Hz Output is measured from U1 pins 7 and 8. 502C controls set as in Figure 26. Figure 30. High Frequency EQ Frequency in Hz Output is measured from U2 pins 1 and 14. 502C controls set as in Figure 26. Figure 31.
  • Page 59 Gain in dB Frequency in Hz Output is measured from U2 pins 7 and 8. 502C controls set as in Figure 26. Figure 32. High Frequency EQ Gain in dB Frequency in Hz Output is measured from U3 pins 1 and 14. 502C controls set as in Figure 26. Figure 33.
  • Page 60 Gain in dB Frequency in Hz Output is measured from U3 pins 7 and 8. 502C controls set as in Figure 26. Figure 34. High Frequency EQ Gain in dB Frequency in Hz Output is measured from U4 pins 7 and 8. 502C controls set as in Figure 26. Figure 35.
  • Page 61 Gain in dB Frequency in Hz Output is measured from U4 pins 1 and 14. 502C controls set as in Figure 26 except: Mode switch is set to 1 (Full Range Mode). Figure 36. High Frequency EQ...
  • Page 62 Figure 37. 502C Controller Block Diagram...

  • Page 63: Service Manual Revision History

    SERVICE MANUAL REVISION HISTORY Date Revision Description of Change Change Drive Pages Level Affected 5/93 Changed 502C’s J3, J4 XLR part Part Number number to 189222-001. Change 5/05 Revised Figure 21 to correct exploded Error view. Added service manual revision page. Updated front and back covers.
  • Page 64 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose Corporation The Mountain Framingham Massachusetts USA 01701 P/N: 170310-SM Rev. 03; 6/2006 (P) http://serviceops.bose.com...

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