Bose AmPlus 100 Page 57 Supplement Manual Download

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1998 Bose Corporation

AmPlus™ 50 and 100 Amplifier

Opti-Voice

and Opti-Source™

Option Cards

and

FreeSpace

Model 1B, Model 8

and Model 25/32 EQ Cards

Supplement

Part Number 194101-S2 Rev. 00

Summary of Contents for AmPlus 100

Page 1: ...on Card Signal Outputs 24 Table 9 AmPlus 100 Amplifier Initial Switch Settings 28 Table 10 AmPlus 50 Amplifier Initial Switch Settings 28 Table 12 FreeSpace Model 1B Flush EQ Frequency Response Tests...

Page 2: ...Volume Control w o A B Switch see Figure 12 47 Figure 12 FreeSpace Zone 2 Remote Volume Control w o A B Switch Exploded View 47 Integrated Circuit Pinout Diagrams 48 49 General Troubleshooting Tips 50...

Page 3: ...duit etc to all exposed metal parts of the unit antennas handle bracket metal cabinet screwheads metallic overlays control shafts etc especially any exposed metal parts that offer an electrical return...

Page 4: ...ng 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...

Page 5: ...edback around the op amps The gain cell is controlled by an internal level detector circuit which monitors the signal applied to the limiter Once the input signal has risen beyond the threshold the de...

Page 6: ...asier to locate components on the schematic sheet indicated in the description The two page signals entering Sheet 2 are passed through Page 1 2 C8 Level Trim Potentiometers R5 6 C8 and through U300 C...

Page 7: ...cuits on Sheet 2 detect when the sources connected to the A inputs at J1 on the rear of the AmPlus 100 amplifier become active When A is active it will override the selection of the B input turning B...

Page 8: ...A5 provide the same function for CH2 Signals DRC1 C8 and DRC2 B8 coming from the source selectors U200 and U201 B C3 on Sheet 1 are presented to S4 C4 and S5 B5 respectively so that they can pass thr...

Page 9: ...f all three equalizers is similar Considering the bass equalizer we see U2B s D7 output passed through R8 D7 and into the non inverting input of U2A D2 This input is extended as a bus to which EQ sect...

Page 10: ...up to its previous level after the page is completed You can install two of either card into the same amplifier for extended source or paging capabilities You can also use several AmPlus 100 amplifie...

Page 11: ...ISK OF ELECTRICAL SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR GAIN LEVEL PAGE 1 20 30 OFF MIN MAX TRIGGE R LEVEL GAIN LEVEL PAGE 2 MIN TRIGGE R LEVEL 20 30 OFF MAX LINE OUTPUTS INPUTS PA...

Page 12: ...five screws removed in step 2 1 see Figure 5 Figure 5 Top Cover Replacement TO REDUCE THE RISK OF FIRE OR ELECTRI CAL SHOCK DO NOT EXPOSE THIS EQUIPME NT TO RAIN OR MOISTUR E REFER TO YOUR INSTRUC TI...

Page 13: ...how closely they hold the microphone to their mouths The compressor maintains a constant output level for inputs varying over a 30dB range The gain LED will glow green when the compressor is active bu...

Page 14: ...nect your page sources to the Opti Voice Page Option card page inputs and to connect the line outputs to other peices of equipment in your system 3 Setting levels 1 During these system adjustments hav...

Page 15: ...ws green Turn the page trigger level control back to the right until the paging comes ON again 3 Now have the speaker stop speaking The page trigger LED should go out and the music should fade back in...

Page 16: ...AUTO position 2 Music Compressor switches For a two zone application in which only one of the two zones will require automatic A B switching place the Mode switch into the AUTO position for channel 1...

Page 17: ...switch to the MONO position 2 If A and B sources are being sent to one zone but stereo is desired place the Input Mode switch to the 2 CH position 3 If the AmPlus 100 amplifier is being used to power...

Page 18: ...on Adjust the B source gain until the music compressor LED changes to red Lower the gain control until the LED stays off Setting Channel levels 1 Turn both Opti Source card level controls fully count...

Page 19: ...r schematic diagrams in the AmPlus 50 and 100 Business Music Ampifiers Service Manual part number 194101 Function PCB Location Type Line Output Channel 1 J5 Pins 1 2 and 3 Impedance balanced tie LO to...

Page 20: ...lifier connector kit that includes J1 J4 and J5 is 188620 001 The part number for the J6 connector is 190694 008 The connector kit part number for the Opti Source Option Card is 187511 7 If you must t...

Page 21: ...ce Option Card into the option card slot and secure it using the screws for the cover plate Note Do not short the pins of J3 on the Opti Source Card at this time 1 6 Turn on the AmPlus 100 Amplifier a...

Page 22: ...at J1 5 6 Measure the Channel 2 output level at J6 of the AmPlus 100 Amplifier 5 7 It should be 0 0 dB 2 0 dB 5 8 On the Opti Source Option Card apply a balanced 100mv 1kHz signal to Channel 2 only at...

Page 23: ...e from a 1 kHz signal to a 5 kHz signal This is due to the B Source Input being attenuated by the Opti Source Option Card circuitry when an A Source Input signal is detected 6 10 Remove the input at t...

Page 24: ...0dB Ch 2 S2 switch 30dB Opti Voice Enable switch Ch 1 S3 switch disabled Opti Voice Enable switch Ch 2 S4 switch disabled Line Output Selector switches Ch 1 0 disabled 1 enabled S5 sections 3 and 4 sw...

Page 25: ...connector kit that includes J1 J4 and J5 is 188620 001 The part number for the J6 connector is 190694 008 The connector kit part number for the Opti Voice Page Option Card is 187521 10 If you must tr...

Page 26: ...us 100 Amplifier It should be 5 75 Vrms 0 5 Vrms 3 5 Apply a 10 mVrms 1kHz signal to the Channel 2 Page Input at J1 3 6 Measure the Channel 1 output level at J6 of the AmPlus 100 Amplifier It should b...

Page 27: ...0 mVrms 1 kHz signal to the AmPlus 100 Amplifier Channel 1 inputs at J1 5 5 Connect the output of the AmPlus 100 Amplifier at J6 to an Oscilloscope Verify that a clean sine wave is displayed on the Os...

Page 28: ...le 10 above Note The AmPlus 50 Amplifier is a single channel amplifer It has the components that are used for the Left channel Channel 1 only The inputs for Channel 1 and 2 at J1 are summed internally...

Page 29: ...listed in Table 11 FreeSpace Model 1B Surface EQ Frequency Response Tests Table 11 FreeSpace Model 1B Surface EQ Frequency Response Tests 3 Flush EQ Frequency Response Tests 3 1 Set up the AmPlus Amp...

Page 30: ...fier as listed in the Test Setup Notes 6 2 Short the inputs of the AmPlus Amplifier to ground 6 3 Install the Model 1B Equalizer PCB into the EQ jack for the channel you are using for this test J9 for...

Page 31: ...5 Turn on the AmPlus Amplifier and measure the gain There should be a 4 8 dB 1 0 dB change in gain at the output 1 6 Reference a dB meter to the output level at J6 1 7 Perform the tests as listed in T...

Page 32: ...duct Name Part Number Product Code Note Opti Voice Page Option Card Literature Kit Connector Kit 187515 001E 191911 187521 019073 Opti Source Source Option Card Literature Kit Connector Kit 187505 001...

Page 33: ...33625 6192 R125 156 26 7 K 0805 1 10W 1 133625 2672 R126 127 301 K 0805 1 10W 1 133625 3013 R131 132 57 6 K 0805 1 10W 1 133625 5762 R133 140 148 158 201 203 205 208 210 212 214 217 301 303 305 307 1...

Page 34: ...uF EL 105 16V 20 137126 100 C102 105 106 116 118 120 127 136 47 pF 0805 COG 50V 5 133622 470 C107 108 121 122 131 143 144 147 148 149 150 159 160 161 162 211 212 221 223 232 233 306 307 309 313 316 3...

Page 35: ...200 201 MULTIPLEXER DIP 16 CD4052 147243 U300 SWITCH QUAD DIP 14 CD4066B 119837 U301 302 QUAD 2 INPUT NOR SO 14 4001 188648 001 U303 TRANS DUAL SOIC 16 NJM13700 188650 001 Reference Designator Descrip...

Page 36: ...Opti Voice Page Option Card see Figure 6 Item Number Description Part Number Qty Note 1 CONN KIT PAGE CARD AMPLUS 100 187521 1 2 BAG ANTI STATIC 7X8 5 191914 1 3 PCB ASSY PAGE CARD 187516 1 4 GUIDE IN...

Page 37: ...K 0805 1 133625 1003 R117 123 8 66 K 0805 1 133625 8661 R118 122 127 409 416 430 434 4 99 K 0805 1 133625 4991 R119 124 475 0805 1 133625 4750 R205 208 310 328 311 330 200 K 0805 1 10W 1 133625 2003...

Page 38: ...HCF4052BEY 187620 001 U308 400 COMPANDOR NE572N 178894 U403 OP AMP DUAL SOIC 8 NJM4559 187473 Reference Designator Description Part Number Note C8 101 108 111 210 211 416 430 680 pF 0805 50V 5 133622...

Page 39: ...03 S1 2 4 5 SLIDE DPST VERT 176148 S3 R ANGLE SLIDE DPDT 188664 S6 7 DIP SPST 4 POS 148777 1 G1 2 SCREW TERM PCB HORIZ 6 32 187504 SCREW MACH 6 32x5 16 PAN XREC 146092 05 PACKING LIST Opti Source Opt...

Page 40: ...625 3321 R87 88 3 90 K 0805 1 10W 5 133626 3925 R94 100 0805 1 10W 1 133625 1000 Reference Designator Description Part Number Note C2 22 uF BOX 85 50V 5 137127 224 C5 01 uF BOX 85 100V 5 137127 103 C6...

Page 41: ...87481 JP1 CONN HEADER RTANG 12 POS 149538 PACKING LIST FreeSpace Model 1B EQ card see Figure 8 REF END CAP 12 PACKAGED EQ CARDS PER CARTON 1 2 3 4 5 Item Number Description Part Number Qty Note 1 OWNE...

Page 42: ...6 48 49 50 51 10000 pF CHIP 5 124959 103 C25 0027 uF BOX 85 100V 5 137127 272 C27 0022 uF BOX 85 100V 5 137127 222 Reference Designator Description Part Number Note R1 20 0 K 1206 1 8W 1 124894 2002 R...

Page 43: ...9 Model 8 Equalizer PCB Packing View END CAP 1 2 3 4 5 Item Number Description Part Number Qty Note 1 LIT KIT PRO EQ CARDS 1800 V 2 CONTAINS 1 POLY BAG 2 INSTALLATION SHEET 3 LABELS CHASSIS 184815 17...

Page 44: ...5 137127 563 C11 12 0056 uF BOX 85 100V 5 137127 562 C20 22 022 uF BOX 85 100V 5 137127 223 C24 26 48 49 50 51 10000 pF CHIP 5 124959 103 C25 27 0027 uF BOX 85 100V 5 137127 272 Reference Designator...

Page 45: ...ARDS 1800 V 2 CONTAINS 1 POLY BAG 2 INSTALLATION SHEET 3 LABELS CHASSIS 184815 178854 183746 184816 1 1 1 1 2 PCB ASSY M32 EQ CARD 183743 1 3 BAG ANTISTAT 4X7 5 177761 1 4 TUBE PACKING ROUND PLUG SEAL...

Page 46: ...38X6X2 mil 100278 1 2 SCREW MACH 6 32X1 00 OVAL HD 178115 16 2 US CA 2 SCREW MACH M3 5X25MM FLAT XREC 178116 25 2 EU UK AUS 3 SW500 SWITCH SPST ROCKER 178108 1 4 KNOB REMOTE FREESPACE 6 178104 1 5 SCR...

Page 47: ...6 178104 1 4 SCREW MACH 6 32x1 00 OVAL HD 178115 16 2 US CA 4 SCREW MACH M3 5x25mm FLAT XREC 178116 25 2 EU UK AUS 5 SCREW TAPP 6 13x 5 PAN XREC 173555 08 2 6 BAG POLY 9 38x6x2 MIL 100278 1 7 CARTON D...

Page 48: ...UT 2 A INPUT 3 A INPUT 4 V 5 B INPUT 6 B INPUT 7 B OUTPUT 8 C OUTPUT 9 C INPUT 10 C INPUT 11 V 12 D INPUT 13 D INPUT 14 D OUTPUT Bose P N 178894 Device Type NE572N Dual Channel Compander 1 2 3 4 5 6 7...

Page 49: ...B 15 Diode Bias B 16 Amp Bias Input B Bose P N 188648 Device Type CD4001 Quad 2 Input Nor Gate A B J K C D VSS E F L M G H VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PIN FU...

Page 50: ...tice to ground the shield at both ends because then it serves as a conductor and radiates interference into the center wires With unbalanced sources and pre wired RCA RCA plug cables the shield is gro...

Page 51: ...rently more susceptible to the pickup of audio interference from AC mains hum RFI and lighting dimmers Typically unbalanced sources have screw terminals an RCA connector also called a phono connector...

Page 52: ...o on internal switch settings 2 Turn the page level trim to the right to increase the sensitivity 3 Turn the page level trim to the right to increase the page level Feedback occurs during paging from...

Page 53: ...d at the A B Remote Volume Control inputs When using the Remote Volume Control to A B both channels simultaneously one zone applications the remote control inputs on the quick connect terminal blocks...

Page 54: ...Figure 13 FreeSpace Model 1B Equalizer Board Topside and Etch Layout Diagram Figure 14 FreeSpace Model 1B Equalizer Board SMD and Etch Layout Diagram 54...

Page 55: ...Figure 15 Models 8 and 25 32 Equalizer PCB Topside Component and Etch Layout Diagram Figure 16 Models 8 and 25 32 SMD Component and Etch Layout Diagram 55...

Page 56: ...U C8 047 C10 OPT 11 4 1 2 3 U2 RC4156N R11 110K R13 OPT R8 N U C9 N U R12 OPT R10 N U R9 11 5K R16 OPT R15 OPT R18 OPT C13 N U R14 OPT R19 OPT R17 OPT RC4156N 7 6 5 U1 C12 0056 C11 OPT C14 N U C15 N U...

Page 57: ...1998 Bose Corporation AmPlus 50 and 100 Amplifier Opti Voice and Opti Source Option Cards and FreeSpace Model 1B Model 8 and Model 25 32 EQ Cards Supplement Part Number 194101 S2 Rev 00...

Page 58: ...orporation The Mountain Framingham Massachusetts USA 01701 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE P N 194101 S2 Rev 00 4 98 FOR TECHNICAL ASSISTANCE OR PART ORDERS CALL 1 800 367...

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