Bose 1800-V Manual

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SAFETY INFORMATION ...................................................................................................................................................... 2

ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) DEVICE HANDLING ...................................................................... 3

SPECIFICATIONS ................................................................................................................................................................ 4

FREQUENCY CURVES ........................................................................................................................................................ 6

Figure 1. 402 EQ Card HF Only Response ................................................................................................................... 6

Figure 2. 402 EQ Card Full Range Response ............................................................................................................... 6

Figure 3. 502A EQ Card HF Only Response ................................................................................................................. 7

Figure 4. 502A EQ Card Full Frequency Response ...................................................................................................... 7

Figure 5. 502B EQ Card Response ............................................................................................................................... 8

Figure 6. 802 EQ Card HF Only Response ................................................................................................................... 8

Figure 7. 802 EQ Card Full Range Response ............................................................................................................... 9

Figure 8. 1800-V Block Diagram .................................................................................................................................. 10

THEORY OF OPERATION .................................................................................................................................................. 11

1. GENERAL ........................................................................................................................................................................ 11

2. CIRCUIT DESCRIPTIONS .............................................................................................................................................. 12

3. PROTECTION CIRCUITRY ............................................................................................................................................ 17

1800-V DISASSEMBLY/ASSEMBLY PROCEDURES ...................................................................................................... 20

Figure 9. Cover's Attaching Hardware ......................................................................................................................... 20

Figure 10. Rear View - Attaching Hardware ................................................................................................................. 22

Figure 11. 240V Configuration ..................................................................................................................................... 22

Figure 12. 1800-V Amplifier Assembly ......................................................................................................................... 22

Figure 13. Bottom Mounted Components. ................................................................................................................... 25

Figure 14. Side View - Bottom Mounted Components ................................................................................................. 25

Figure 15. Heatsink Bridge .......................................................................................................................................... 26

TEST PROCEDURES ......................................................................................................................................................... 29

AMPLIFIER TEST PROCEDURES .................................................................................................................................... 29

EQ CARD TEST PROCEDURES ....................................................................................................................................... 30

PART LISTS AND EXPLODED VIEWS ............................................................................................................................. 33

1800-V MAIN ASSEMBLY PART LIST .............................................................................................................................. 34

Figure 16. Front Panel Views ....................................................................................................................................... 37

Figure 17. Back Panel View ......................................................................................................................................... 37

Figure 18. Cross Section View ..................................................................................................................................... 37

Figure 19. Top Down Inside Views ............................................................................................................................... 38

1800-V PACKAGING PART LIST ...................................................................................................................................... 39

Figure 20. 1800-V Amplifier and EQ Card Packaging Illustration ................................................................................ 39

1800-V ELECTRICAL AND MECHANICAL PART LISTS ................................................................................................. 40

Display PCB Electrical Part List ................................................................................................................................... 40

I/O PCB Electrical Part List .......................................................................................................................................... 42

Power Supply PCB Electrical Part List ........................................................................................................................ 45

Regulator PCB Electrical Part List ............................................................................................................................... 49

Power Switch PCB Electrical Part List ......................................................................................................................... 51

Amplifier PCB Electrical Part List ................................................................................................................................. 52

Output PCB Electrical Part List .................................................................................................................................... 55

Input Module PCB Electrical Part List .......................................................................................................................... 57

402 Equalizer PCB Assembly Electrical Part List ........................................................................................................ 60

502A Equalizer PCB Assembly Electrical Part List ...................................................................................................... 61

502B Equalizer PCB Assembly Electrical Part List ...................................................................................................... 63

802 Equalizer PCB Assembly Electrical Part List ........................................................................................................ 64

WIRING DIAGRAMS .......................................................................................................................................................... 66

Figure 21. 1800-V Wiring Diagram .............................................................................................................................. 66

Figure 22. 1800-V 240V Wiring Diagram Variation Difference ..................................................................................... 67

SCHEMATICS AND PCB LAYOUTS ................................................................................................................................. 68

402 Equalizer Card Schematic .................................................................................................................................... 69

502A Equalizer Card Schematic .................................................................................................................................. 70

502B Equalizer Card Schematic .................................................................................................................................. 71

802 Equalizer Card Schematic .................................................................................................................................... 72

402, 502A AND 802 Equalizer Card PC Board Layout, P/N 177328, Revision 01 ................................................. 73

502B Equalizer Card PC Board Layout, P/N 178860, Revision 0 ........................................................................... 74

CAUTION: THE 1800-V PROFESSIONAL STEREO POWER

AMPLIFIER SYSTEM CONTAINS NO USER-SERVICEABLE PARTS.

TO PREVENT WARRANTY INFRACTIONS, REFER SERVICING TO

WARRANTY SERVICE STATIONS OR FACTORY SERVICE.

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Summary of Contents for Bose 1800-V

Page 1: Table Of Contents
Figure 19. Top Down Inside Views ..........................38 1800-V PACKAGING PART LIST ............................39 Figure 20. 1800-V Amplifier and EQ Card Packaging Illustration ................39 1800-V ELECTRICAL AND MECHANICAL PART LISTS ....................40 Display PCB Electrical Part List ........................... 40 I/O PCB Electrical Part List ............................
Page 2: Safety Information
® BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE.
Page 3: Electrostatic Discharge Sensitive (Esds) Device Handling
ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) DEVICE HANDLING This unit contains ESDS devices. We recommend the following precautions when repairing, replacing or transporting ESDS devices: • Perform work at an electrically grounded work station. • Wear wrist straps that connect to the station or heel straps that connect to conduc- tive floor mats.
Page 4: Specifications
SPECIFICATIONS Size: 3.5"H (2U) x 19" W x 13.25" D 89mm x 483mm x 337mm Weight: 30 lbs. (13.6 kgs) Shipping 36 lbs. (16.3 kgs) Display: 7 LED indicators per channel 1 green READY, 5 yellow SIGNAL, 1 red CLIP/PROTECT Operating Temperature: 0°...
Page 5 > 78 dBW, A-weighted, referenced to 1W into 4 ohms (high gain) Slew Rate: 10V/µS (Bandwidth limited) 40V/µS (RFI filtering removed) > 80 dB @ 1 kHz (without Bose ® Input Module) CMRR: > 60 dB from 20 Hz-20kHz (without Bose Input Module) Power Consumption:...
Page 6: Frequency Curves
FREQUENCY CURVES Figure 1. 402 EQ Card HF Only Response Figure 2. 402 EQ Card Full Range Response...
Page 7 Figure 3. 502A EQ Card HF Only Response Figure 4. 502A EQ Card Full Frequency Response...
Page 8 Figure 5. 502B EQ Card Response Figure 6. 802 EQ Card HF Only Response...
Page 9 Figure 7. 802 EQ Card Full Range Response...
Page 10 BLOCK DIAGRAM Figure 8. 1800-V Block Diagram...
Page 11: Theory Of Operation
The balanced inputs use high quality, high common-mode rejection differential amplifiers for exceptional hum and noise rejection. Through the use of equalization cards the amplifier can provide active equalization for Bose 402™, ® A, 502B and 802 ®...
Page 12: Circuit Descriptions
2. CIRCUIT DESCRIPTIONS This section discusses the theory of operation of the 1800-V Amplifier. For a better understanding of the circuitry involved, refer to the schematics included with this manual. Component pin designation is notated as follows: U1-7 means U1 at pin 7.
Page 13 For information on sequence operation see Section 2.8, Sequence Send/Receive. 2.2 Power Amplifier Circuitry The 1800-V uses a conventional class AB push-pull power amplifier circuit, with a commutated two-stage (dual-rail, class H) power supply. U100A-1 is the input stage, providing differential inputs for input and feedback connections as well as most of the open-loop voltage gain of the circuit.
Page 14 2.3 Magnetic Field Power Supply The main power supply for the 1800-V is a dual-voltage design which provides no-load voltages of +/-106 and +/-53 volts DC. The triac drives the primary of the magnetic field power transformer by operating as a phase controlled switch;...
Page 15 2.5 Power Supply Regulation The firing angle of the triac controls the voltage on the primary of the transformer, and is determined by the conduction of the optocoupler U3 on the Regulator Board. As the conduction of the optocoupler increases, so does the conduction angle of the triac. The photodiac conduction of the optocoupler is controlled by the current through the LED portion of the optocoupler, the amount of current through the LED is equal to the amount of current through transistor Q1.
Page 16 2.8 Sequence Send/Receive The amplifier can be powered up while the power switch is in the OFF position by applying a DC control voltage of +7V to +15V to the Sequence RCV terminal. Q3 on the Input Board will turn on and carry the control voltage through to the SND terminal, which is connected to the next amplifier in the sequential chain.
Page 17: Protection Circuitry
The output signal is sensed at the speaker output via the I/O Board (J2-3 Output Board to J6-3 I/O Board to J3-6 I/O Board to J1-6 Display Board). D22 half-wave rectifies the signal and provides a DC voltage proportional to the amplifier’s output to drive the signal display circuit. C2 and R19 determine the response characteristics of the display.
Page 18 3.2 Clipping Eliminator Circuit This circuit is controlled by the LED/LDR opto-isolator U3, located on the I/O Board. The LED portion of this component is driven from a bridge rectifier (D4) that gets its input signal from U100A-1 on the Amplifier Board.
Page 19 3.7 Bridged Mono/Dual Mono Switching The Stereo/Mono Switch (S1) on the Input Board is a three-position switch used to select Normal Stereo, Bridged Mono or Dual Mono operation. In the Bridged Mono position, it connects CH 1 in parallel with the CH 2 input, but inverts the signal to CH 1.
Page 20: 1800-V Disassembly/Assembly Procedures
1800 SERIES V PROFESSIONAL AMPLIFIER FOR BRIDGED BRIDGED OPERATIONS 1400 W 8 Attaches Nylon D.O.M. CONSULT BOSE CORPORATION, FRAMINGHAM, MA 01701-9168 MADE IN U.S.A. OWNERS MANUAL LICENSED UNDER U.S. PAT. NO. 4,484,150 Standoff 700 W 4 700 W 4 CAUTION AVIS...
Page 21 5.3 Unsnap the Regulator Board from the nylon 8. Power Switch Board Replacement standoffs mounted on the Power Supply Board. This will also disengage the Regulator Board 8.1 Push the switch into the chassis's (2) front from the Power Supply's J1 connector. panel.
Page 22 1800 SERIES V PROFESSIONAL AMPLIFIER FOR BRIDGED BRIDGED OPERATIONS 1400 W 8 Attaches Nylon D.O.M. CONSULT BOSE CORPORATION, FRAMINGHAM, MA 01701-9168 MADE IN U.S.A. OWNERS MANUAL LICENSED UNDER U.S. PAT. NO. 4,484,150 Standoff 700 W 4 700 W 4 Input CAUTION...
Page 23 10.3 Connect the cables from the Line Cord (31) 13.2 Disconnect the following cables (Refer to and Power Supply to the terminals of the Line Figure 12): Filter. Refer to the Wiring Diagrams (Figures 21 and 22) if you are not sure of the wiring scheme. The two ribbon cables connected to the I/O Board (6) (J101, J201 from the Amplifier Board 10.4 Return the cover (1) to the chassis (2), see...
Page 24 The large ribbon cable (JP200) to the Power 15.5 To release the heatsink base from the Supply Board (7) connector J2. bottom of the chassis, use a phillips-head screwdriver to remove four screws (3) from the chassis's bottom panel. Refer to Figure 14. The Amplifier and Power Supply Board (7) cables to the Output Board's (16) WL1, WL2, WL100, WL101, WL200 and WL201 terminals.
Page 25 Qty 4 Figure 13. Bottom Mounted LINE Components Qty 2 Qty 2 LOAD Qty 2 Part of Qty 2 I/O Board I/O Board 2-Pin Harness Connector I/O Board Ribbon Cable Output Board Qty 4 Output Board J2 Connector Qty 2 Input Module J1 Connector Input Module...
Page 26 16.4 Connect the Output Board's black wires to All the cables connected to the transformer. the binding posts (items 24 or 25) by tightening four nuts with an 11/32 wrench. Refer to Figure 16.11 Return the cover (1) to the chassis (2), use 13 for their location.
Page 27 18. Power Supply Replacement 19.3 Release the fan and shield (26) from the chassis's back panel by removing two screws (3) with a phillips-head screwdriver. The screws are 18.1 Attach the Power Supply Board (7) to the located over the fan's exhaust slot. Refer to heatsink (18) by tightening four screws (30) into Figure 10.
Page 28 21. I/O Board Removal 23. Input Module Removal 21.1 Use Procedure 15, Steps 15.1-15.5 to 23.1 Use a phillips-head screwdriver to remove remove the chassis cover (1), disconnect two screws (3) from the Input Module's (17) cabling, and to move the heatsink (18), which will connector panel.
Page 29: Test Procedures
TEST PROCEDURES AMPLIFIER TEST PROCEDURES 1. Full Power Distortion Use the following test conditions for measuring distortion in Sections 1.1 and 1.2: • Connect the signal source to the CH1 or CH2 inputs ± • Set the signal source to output 1.5 .1 Vrms @ 1 kHz Low Sensitivity, .775Vrms High Sensitivity •...
Page 30: Eq Card Test Procedures
EQ CARD TEST PROCEDURES 1. 402 Equalizer Curve Use the following test set-up parameters when measuring Full Range or High Frequency response outputs: A. Apply a signal of 850 Hz at 1 Vrms and adjust the amplifier's output to 6 Vrms. B.
Page 31 2.2 502A High Frequency Response IMPORTANT: Set the Input Module's S2 switch to the HF Only (High Frequency) position before beginning this test. FREQUENCY OUTPUT SPECIFICATION (dbr) -28.5 ± 2.0 dB +3.7 ± 1.5 dB +3.5 ± 1.5 dB 2200 +12.5 ±...
Page 32 4.2 802 High Frequency Response IMPORTANT: Set the Input Module's S2 switch to the HF Only (High Frequency) position before beginning this test. FREQUENCY OUTPUT SPECIFICATION (dbr) -21.0±1.5 dB -11.5±1.5 dB 2500 +2.1±1.5dB 6000 +9.6±1.5dB 14500 +16.7±1.5dB...
Page 33: Part Lists And Exploded Views
PART LISTS AND EXPLODED VIEWS The following section contains part lists and exploded views for the 1800-V Amplifier. The part lists are broken down as follows: • Main Assembly and Exploded Views • Packaging Part List and Exploded View Electrical and Mechanical Part Lists: •...
Page 34: 1800-V Main Assembly Part List
1800-V MAIN ASSEMBLY PART LIST Item Decription Part Number Number Note Assy Cover, Top 182740 Chassis, Gray 182739 Screw, SM PP Serr. BLK 6x1/4 B 182721 Transformer, UI,1250W,MAG 182765 UI,IEC,230V Transformer, UI,1250W,MAG 182766 UI,120V Transformer, UI,1250W,MAG 182767 UI,100V CCA, Display...
Page 35 1800-V MAIN ASSEMBLY PART LIST Item Decription Part Number Number Note Assy Screw,SEMS PP BLKOX WX 6- 182724 32x3/8 Clamp, Cable, Nylon 1.38" 182732 Bracket, Heatsink 182741 Fan, 24 VDC High Flow, B1 182710 Post, BDG, Dual Short Red/BLK 182711 120V &...
Page 36 1800-V MAIN ASSEMBLY PART LIST Item Decription Part Number Number Note Assy Screw, BLK FH 100 DEG 4- 182717 40X1/2,Card Slide Screw SM #4 FHP 100DG 1/4" 182725 Screw 4-40 Slot PNH NYL 6/6 3/8 182726 KEPNUT, 4-40 ZC 182727...
Page 37 Qty 3 1800 SERIES V PROFESSIONAL AMPLIFIER FOR BRIDGED BRIDGED OPERATIONS 1400 W 8 D.O.M. CONSULT BOSE CORPORATION, FRAMINGHAM, MA 01701-9168 MADE IN U.S.A. OWNERS MANUAL LICENSED UNDER U.S. PAT. NO. 4,484,150 700 W 4 700 W 4 CAUTION AVIS 100V...
Page 38 100V and 120V Configuration 240V Configuration Qty 2 Qty 2 Qty 2 R101 R102 Qty 2 LOAD 240V Line Filter LINE LINE LOAD Qty 2 Qty 28 Qty 6 Figure 19. Top Down Inside Views LINE Qty 2 Qty 2 LOAD Qty 2 Part of...
Page 39: 1800-V Packaging Part List
Manual, User 179353-1 Polybag, Amplifier 182768 Literature Kit, EQ Cards 178857 Bag, Antistatic, EQ Cards 177761 Envelope, Corrugated 180135 Connector Assembly, 502B Card 180137 Only (Summing Wire) Feet (Not Illustrated) 142839 Figure 20. 1800-V Amplifier and EQ Card Packaging Illustration...
Page 40: 1800-V Electrical And Mechanical Part Lists
1800-V ELECTRICAL AND MECHANICAL PART LISTS Display PCB Electrical Part List Resistors Reference Description Part Number Reference Designator R9,10,13,17,24,35 10KΩ,1% 1/4W,MF 182800 R11,18 2.21KΩ,1%,1/4W, 182908 R12,19 150KΩ,5%,1/4W,CF 182974 R14,36 2.74KΩ,1%,1/4W, 182976 R15,20,22,25,26,28, 30.1KΩ,1%,1/4W, 182977 31,34 R16,21,23,27,29,32 7.5KΩ,1%,1/4W,MF 182978 R103,149,164,203 10KΩ,5%,1/4W,CF...
Page 41 Transistors Reference Description Part Number Reference Designator Q100,200 TO92,PNP,SM,SG 182815 2N4125 Integrated Reference Description Part Number Reference Designator U1-4 Dual Op-Amp 182914 4558,8 PIN SIP Connectors Reference Description Part Number Reference Designator Header, 13 Pin, 182972 .1 Lock RTANG...
Page 42: I/O Pcb Electrical Part List
I/O PCB Electrical Part List Resistors Reference Description Part Number Reference Designator R1,3 62KΩ,5%,1/4W,CF 182906 R5,15,67 2.2KΩ,5%,1/4W,CF 182793 4.7Ω,5%,1/4W, 182808 FLMPRF R7,18 100KΩ,5%,1/4W,CF 182790 R8,12,20,27,28,53, 10KΩ,1%,1/4W,MF 182800 96,97,99,100 R9,11,56,92 1KΩ,5%,1/4W,CF 182788 R10,26,63,76 200KΩ,5%,1/4W,CF 182901 R13,16,30,38,44,59, 10KΩ,5%,1/4W,CF 182789 60,R62,66,78,81,95 R14,65 3.6KΩ,5%,1/4W,CF 182794 R17,91 2.7KΩ,5%,1/4W,CF...
Page 43 Capacitors Reference Description Part Number Reference Designator C8,30 680pF,5%,100V, 182892 Cer.,ML C9,25,33,34 4.7µF,20%,100V, 182894 LYTIC RD C10,12,15,31 470pF,10%,1000V, 182890 Cer. Disc C11,26 22µF,25V,20%, 182841 LYTIC RAD C13,27 220µF,20%,10V, 182899 LYTIC C14,28 47µF,20%,25V, 182896 LYTIC RAD C16,32 10µF,20%,50V, 182895 LYTIC RAD Diodes Reference Description...
Page 44 Integrated Circuits Reference Description Part Number Reference Designator Op-Amp, Dual, 182915 JFET 9-PIN SIP U2,7,9 Dual Op-Amp 182914 4558,8 PIN, SIP U3,8 Optoisolator, VTL5C4 199766 Connectors Reference Description Part Number Reference Designator Harn, Conn, 20 Pin, 182919 28 Awg, 6" J100,200 Header 10-Pin Rt.
Page 45: Power Supply Pcb Electrical Part List
Power Supply PCB Electrical Part List Resistors Reference Description Part Number Reference Designator 270Ω,5%,1/4W,CF 182850 8.2Ω,5%,1/2W,CF 182857 R3,12,21,32,41,52, 1KΩ, CF 5% 1/4W 182788 18Ω,5%,1/2W,CF 182849 R5,9 6.2KΩ,5%,1/2W,CF 182856 R6-8 1Ω,5%,1/4W, 182861 FLMPRF R10,13,15,27,29,31, 10KΩ,1%,1/4W,MF 182800 42,44,46,59,60,62 R11,30,43,61 511Ω,1/4W,1%,MF 182858 R14,28,45,58 681Ω,1%,1/4W,MF 182859 R16,47...
Page 46 Capacitors Reference Description Part Number Reference Designator C1,2 .1µF,250VAC, 182846 MTPOLY,UL/CSA C3,9 22µF,20%,25V, 182841 LYTIC,RAD . C4-7 22000µF,63V, 182844 LYTIC, SCRW MNT 470µF,20%,63V, 182842 LYTIC,AX 1.7 C10,19,26,33 .1µF,100V,CER 182838 Multilayer RAD A C11,27 .001µF,10%,100V 182839 PLYFLM, RD A C12,18,21,28,32,35, .0018µF,10%,100V, 182840 42,43 MYLAR, RAD...
Page 47 Transistors Reference Description Part Number Reference Designator Triac,Q6040K7,40A 182867 600V,TO218AC T0220 NPN 2N6488 182876 T0220 PNP 2N6490 182877 Q4,15 TO92 NPN SM SG 182872 MPSA43 Q5,7,12,16,18,23 TO92 PNP SM SG 182875 MPSA56 Q6,11,17,22 TO92 NPN SM SG 182874 MPSA06 Q8,13,19,24 152 NPN SM SG 182871 MPSW06...
Page 48 Miscellaneous Description/ Bose P/N Quantity Reference Location Spacer, Push-In 182826 .250l Spacer, Al .140 Id 182827 .250 Swg .25l Standoff, Brs .25 Od 182828 6-32 Swg .125 B Heatsink Power 182884 Supply Heatsink, Bridge 182885 Insulator, Sil-Pad 182886 K-6, 8 Pos...
Page 49: Regulator Pcb Electrical Part List
Regulator PCB Electrical Part List Resistors Reference Description Part Number Reference Designator 150KΩ,5%,1W,CF 182947 R3,4 MO FP,5%,390,2W 182960 1.0 AX LG R5,6,34 7.5KΩ,5%,1/4W,CF 182953 270Ω,5%,1/2W,CF 182949 47KΩ,5%,1/4W,CF 182927 R10,22 1.05KΩ,1%,1/4W, 182956 510KΩ,5%,1/4W,CF 182798 R12,18 100KΩ,1%,1/4W, 182801 3.32KΩ,1%,1/4W, 182958 R14,17 10KΩ,5%,1/4W,CF 182789 1KΩ,5%,1/4W,CF 182788...
Page 50 Capacitors Reference Description Part Number Reference Designator .1UF,250VAC, 182846 MTPOLY,UL/CSA 330µF,20%,25V, 182946 LYTIC,RAD C3,8 47µF,20%,25V,LYTI 182896 RAD .2 C4,5 150 pF,10%,1000V, 182944 Cer. Disc .1µF,5%,100V, 182945 PLYFLM,RAD 10µF,20%,50V, 182895 LYTIC,RAD C9,10 .01µF,100V,Cer. 182780 MULTILYR,RD Diodes Reference Description Part Number Reference Designator D2,3 Zener,1N4736A,...
Page 51: Power Switch Pcb Electrical Part List
Integrated Circuits Reference Description Part Number Reference Designator Optoisolator, 182965 PXSTR,CNY17-2Z Power Supply, 182963 HV3-2405E-5 Opto Triac Driver 182880 MOC3052 182964 Amp/Comparator, MC3405P Dual Op-Amp 182914 4558,8 Pin,SIP Connectors Reference Description Part Number Reference Designator Header 18 Pin 182943 Sgl Row .100 Gld Power Switch PCB Electrical Part List Diodes Reference...
Page 52: Amplifier Pcb Electrical Part List
Amplifier PCB Electrical Part List Resistors Reference Description Part Number Reference Designator R100,200 1KΩ,1/4W,5%,CF 182788 R101,115,201,215 10KΩ,1%,1/4W,MF 182800 R102,107,114,116, 1.5KΩ,1%,1/4W,MF 182802 202,207,214,216 R103,117,203,217 4.7KΩ,5%,1/4W,CF 182796 R104,119,204,219 910Ω,5%,1/4W,Film 182810 R105,120,143,205, 100Ω,5%,1/4W, 182806 220,243 Film,PRF R106,121,206,221 43Ω,5%,1/4W,Film, 182807 R108,118,208,218 750Ω,5%,1/4W,Film 182809 R109,209 45.3KΩ,1%,1/4W, 182803 R110,210...
Page 53 Capacitors Reference Description Part Number Reference Designator C101,201 30pF,10%,1000V, 182779 CER DISC C102,202 470µF,20%,6.3V, 182783 LYTIC,AX .95 B C103,203 68pF,10%,1000V, 182778 Cer. Disc C104,108,204,208 22µF,20%,35V, 182782 LYTIC AX .80 D C105,107,205,207 50 pF,10%,1000V, 182777 Cer. Disc C106,206 22 pF,10%,1000V, 182776 Cer.
Page 54 Transistors Reference Description Part Number Reference Designator Q100,105,107,200, TO92,NPN,SM,SG 182817 205,207 MPSA42 Q101,106,201,206 TO92,PNP,SM,SG 182818 MPSA92,A,200 P Q102,202 TO126,PNP, 182820 2SA1381E Q103,203 TO126,NPN, 182819 2SC3503E Q104,204 TO92,NPN, 182816 MPSA18,UNPREP Q108,110,112,114, XSTR,TO3P(L) 182813 116,118,120,208, NPN,PWR, 210,212,214,216, 2SC3281-0 218,220 Q109,111,113,115, TO3P(L),PNP,PWR, 182814 117,119,121,209, 2SA1302-0 B 211,213,215,217,...
Page 55: Output Pcb Electrical Part List
Output PCB Electrical Part List Resistors Reference Description Part Number Reference Designator MO FP 5% 130 3W 182932 .9 AX SM 910Ω,5%,1/4W, 182810 FLMPRF 27KΩ,5%,1/4W,CF 182903 20KΩ,5%,1/4W,CF 183021 10KΩ,5%,1/4W,CF 182789 6.2KΩ,5%,1/4W,CF 182930 47KΩ,5%,1/4W,CF 182928 WW 5% 91 7W 1.3 182936 56KΩ,5%,1/4W,CF 182929 R100,200...
Page 56 Transistors Reference Description Part Number Reference Designator 152 PNP SM SG 182938 MPS6729 Integrated Circuits Reference Description Part Number Reference Designator Dual Voltage 182879 Comparator LM393 B Connectors Reference Description Part Number Designator Header, 14 Pin Dual 182922 Row .1 Gld A Header 2 Pin .1 182921 Lock St Post...
Page 57: Input Module Pcb Electrical Part List
Input Module PCB Electrical Part List Resistors Reference Description Part Number Reference Designator R52-55,60,62 332KΩ,1%,1/4W, 183000 120Ω,5%,1/4W,CF 182995 R57,58,61,64,69,70, 10KΩ,5%,1/4W,CF 182789 76,77 120KΩ,5%,1/4W,CF 182996 330Ω,5%,1/4W,CF 182998 30KΩ,5%,1/4W,CF 182852 51Ω,5%,1/4W,CF 182999 R72,79 100KΩ,5%,1/4W,CF 182790 R73-75,78,80-83 47KΩ,5%,1/4W,CF 182927 R84,87 300Ω,5%,1/4W,CF 182997 R85,88 100Ω,5%,1/4W,CF 182994 R86,89...
Page 58 Transistors Reference Description Part Number Reference Designator TO92,NPN,SM SG, 182874 MPSA06 Q2,3 TO92,PNP,SM SG, 182875 MPSA56 Integrated Circuits Reference Description Part Number Reference Designator U1,2 DIFF LINE RCVR 183005 SSM-2141P U3-6 Op-Amp with Switch 183004 IC DUAL OP AMP 182821 BIFET (TL072) Connectors Reference...
Page 59 Input Panel/Input Module Description/Location Part Number Qty. Reference Assy Plug,RT Angle Terminal Block, 182769 3-pin, J4, J5 Screw Metric MA/PP BLK 182770 M3X8MM Screw SEMS PP BLKOX WX 6- 182771 32x1/4 Washer, Int Lock BLK #4 182772 Panel, Rear,TRS, 1800-V 182773...
Page 60: 402 Equalizer Pcb Assembly Electrical Part List
402 Equalizer PCB Assembly Electrical Part List Resistors Reference Description Part Number Reference Designator R1,2 10.0KΩ,1%,Chip 124894-1002 R3,4,14 3.92KΩ,1%,Chip 124894-3921 8.25KΩ,1%,Chip 124894-8251 R6,7 1.82KΩ,1%,Chip 124894-1821 100KΩ,1%,Chip 124894-1003 R13,19-21,27,34-36 Jumper,CHIP 124896 5.11KΩ,1%,Chip 124894-5111 86.6KΩ,1%,Chip 124894-8662 21.5KΩ,1%,Chip 124894-2152 6.49KΩ,1%,Chip 124894-6491 78.7KΩ,1%,Chip 124894-7872 R37,38 47KΩ,5%,Chip 124895-4735...
Page 61: 502A Equalizer Pcb Assembly Electrical Part List
Integrated Circuits Reference Description Part Number Reference Designator U1,2 OP-Amp 123458 U1,2 OP-Amp 123458 Switch,Active, 177292 SIP-8,BA3128N Connectors Reference Description Part Number Reference Designator Connector,Header, 149538 RTANG,12 POS 502A Equalizer PCB Assembly Electrical Part List Resistors Reference Description Part Number Reference Designator 3.65KΩ,1%,Chip...
Page 62 Capacitors Reference Description Part Number Reference Designator C2,16 100pF,10%,50V, 137269-101 DISC,SL C3,11,12,23 .01uF,5%,100V, 137127-103 BOX,85 680pF,10%,50V, 137269-681 DISC,SL C8,10 .0047uF,5%,100V, 137127-472 BOX,85 C14,15,18,19,21,22 .1uF,5%,50V,BOX, 137127-104 C17,20 .47uF,5%,50V,BOX, 137127-474 C24,26,48-51 10000pF, 124959-103 +80/-20%,CHIP .047uF,5%,63V, 137127-473 BOX,85 Diodes Reference Description Part Number Reference Designator D1-3,5...
Page 63: 502B Equalizer Pcb Assembly Electrical Part List
502B Equalizer PCB Assembly Electrical Part List Resistors Reference Description Part Number Reference Designator R35,52 6.81KΩ,1%,Chip 124894-6811 R36,38 4.75KΩ,1%,Chip 124894-4751 R37,39 15.4KΩ,1%,Chip 124894-1542 5.11KΩ,1%,Chip 124894-5111 R41,44 221KΩ,1%,Chip 124894-2213 1.10KΩ,1%,Chip 124894-1101 49.9KΩ,1%,Chip 124894-4992 68.1KΩ,1%,Chip 124894-6812 6.98KΩ,1%,Chip 124894-6981 1.00KΩ,1%,Chip 124894-1001 4.32KΩ,1%,Chip 124894-4321 5.49KΩ,1%,Chip 124894-5491 R50,51...
Page 64: 802 Equalizer Pcb Assembly Electrical Part List
Integrated Circuits Reference Description Part Number Reference Designator U1,2 Op-Amp,Quad,DIP- 123458 14,RC4156DB Connectors Reference Description Part Number Reference Designator Connector,Header, 149538 12 Pin Connector,Header, 134739-02 2 POS,Male 802 Equalizer PCB Assembly Electrical Part List Resistors Reference Description Part Number Reference Designator 13KΩ,1%,Chip 124894-1302...
Page 65 Capacitors Reference Description Part Number Reference Designator C2,16 100pF,10%,50V, 137269-101 CER, C3,8,10 .0068uF,5%,Box, 137127-682 Film 270pF,10%,CER 137269-271 C14,15 .033uF,5%, Box, 137127-333 Film .33uF,5%,Box,Film 137127-334 C18,19 .1uF,5%,Box Film 137127-104 .47uF,5%,Box,Film 137127-474 C21,22 .15uF,5%,Box, Film 137127-154 .0012uF,5%,Box, 137127-122 Film C24,26,48-51 10000pF, 124959-103 +80/-20%,CHIP .068uF,5%,Box, 137127-683...
Page 66: Wiring Diagrams
WIRING DIAGRAMS Figure 21. 1800-V Wiring Diagram...
Page 67 LINE LOAD LINE FILTER LINECORD GRN/YEL GRN/YEL SEQUENCE SWITCH BLU/BLK SWITCH RING FUSE 8 AMP CCA, POWER POWER SWITCH SUPPLY CCA, REGULATOR Figure 22. 1800-V 240V Wiring Diagram Variation Difference...
Page 68: Schematics And Pcb Layouts
SCHEMATICS AND PCB LAYOUTS The schematics and layout views for the Equalizer Cards are located on Pages 69-74. There are separate schematic and layout foldout sheets for the following PCB assemblies: • Display PCB Assembly • Input/Output (I/O) PCB Assembly •...
Page 69: 402 Equalizer Card Schematic
402 Equalizer Card Schematic...
Page 70: 502A Equalizer Card Schematic
502A Equalizer Card Schematic...
Page 71: 502B Equalizer Card Schematic
502B Equalizer Card Schematic...
Page 72: 802 Equalizer Card Schematic
802 Equalizer Card Schematic...
Page 73: 402, 502A And 802 Equalizer Card Pc Board Layout, P/N 177328, Revision 01
402, 502A AND 802 Equalizer Card PC Board Layouts PC Board Number 177328, Revision 01 Top Components Top Etch Layer Top Components Bottom Etch Layer SMD Components Bottom Etch Layer...
Page 74: 502B Equalizer Card Pc Board Layout, P/N 178860, Revision 0
502B Equalizer Card PC Board Layouts PC Board Number 178860, Revision 0 Top Components Top Etch Layer Top Components Bottom Etch Layer SMD Components Bottom Etch Layer...
Page 75 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE ® ® Bose Corporation The Mountain Framingham, Massachusetts USA 01701 P/N 181812 11/95 Rev. 0 FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-367-4008...

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