Table of Contents
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Safety Information ............................................................................................................................ 3
Electrostatic Discharge Sensitive (ESDS) Device Handling ........................................................ 4
Warranty Information ....................................................................................................................... 4
Theory of Operation, Opti-Voice
Theory of Operation, Opti-Source™ Option Card ...................................................................... 7-8
Theory of Operation, FreeSpace
General Information ....................................................................................................................... 10
Disassembly/Assembly Procedures ....................................................................................... 11-12
Figure 1. AmPlus™ 100 Rear Panel .............................................................................................. 11
Figure 2. Option Card Installation .................................................................................................. 11
Figure 3. Top Cover Removal ........................................................................................................ 11
Figure 4. EQ Card Installation ........................................................................................................ 11
Figure 5. Top Cover Replacement ................................................................................................. 12
Opti-Voice Page Option Card Controls ................................................................................... 13-15
Opti-Source Option Card Controls .......................................................................................... 16-18
AmPlus 100 Test Setup Parameters ............................................................................................. 19
Table 1. AmPlus 100 Initial Switch Settings ................................................................................... 19
Table 2. AmPlus 100 Signal Inputs Table ....................................................................................... 19
Table 3. AmPlus 100 Signal Outputs Table .................................................................................... 19
Test Procedures ........................................................................................................................ 20-31
Table 4. Opti-Source Option Card Initial Switch Positions ............................................................. 20
Table 5. Opti-Source Option Card Signal Inputs ............................................................................ 20
Table 6. Opti-Voice Page Option Card Initial Switch Positions ....................................................... 24
Table 7. Opti-Voice Page Option Card Signal Inputs ..................................................................... 24
Table 8. Opti-Voice Page Option 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 ......................................... 29
Table 11. FreeSpace Model 1B Surface EQ Frequency Response Tests ...................................... 29
Table 13. Model 8 Full Range Response Tests .............................................................................. 30
Table 14. Model 8 High Frequency Response Tests ...................................................................... 31
Table 15. Model 25/32 Full Range Response Tests ....................................................................... 31
Table 16. Model 25/32 High Frequency Response Tests ............................................................... 31
Part List Notes ................................................................................................................................ 32
Product Code Listing ..................................................................................................................... 32
Electrical Part List, Opti-Voice Page Card .............................................................................. 33-35
Packing List, Opti-Voice Page Card (see Figure 6) ..................................................................... 36
Figure 6. Opti-Voice Page Card Packing View ............................................................................... 36
Electrical Part List, Opti-Source Option Card ........................................................................ 37-39
Packing List, Opti-Source Option Card (see Figure 7) ............................................................... 39
Figure 7. Opti-Source Option Card Packing View .......................................................................... 39
FreeSpace Model 1B EQ Card Part List .................................................................................. 40-41
Packing List, FreeSpace Model 1B EQ card (see Figure 8) ...................................................... 41
Figure 8. FreeSpace Model 1B EQ Card Packing View ................................................................. 41
Model 8 EQ Card Part List ........................................................................................................ 42-43
Packing List, Model 8 EQ Card (see Figure 9) ............................................................................. 43
Figure 9. Model 8 Equalizer PCB Packing View ............................................................................ 43
Model 25/32 EQ Card Part List ................................................................................................. 44-45
Packing List, Model 25/32 EQ Card (see Figure 10) .................................................................... 45
Figure 10. Model 25/32 Equalizer PCB Packing View ................................................................... 45
CONTENTS
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Page Option Card ................................................................. 5-6
®
Model 1B Equalizer Card ........................................................ 9
1
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Table of Contents
Troubleshooting
Related Manuals for Bose AmPlus 50
Summary of Contents for Bose AmPlus 50
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Page 1: Table Of Contents
Table 8. Opti-Voice Page Option 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 ......... 29 Table 11. - Page 2 This affects part numbers for the switches used on the Opti-Voice Page card and the Opti-Source Option card. Refer to supplement 194101-S3 for more information. CAUTION: The AmPlus™ 100 and AmPlus 50 Amplifier Option and Equalizer Cards contain no user serviceable parts.
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Page 3: Safety Information
SAFETY INFORMATION 1. Parts that have special safety characteristics are identified by the symbol on schematics or by special notes on the parts list. Use only replacement parts that have critical characteristics recommended by the manufacturer. 2. Make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit before returning the unit to the customer. -
Page 4: 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 conductive floor mats. - Page 5 THEORY OF OPERATION ® Opti-Voice Page Option Card Introduction This card accepts a pair of mic or line level sources at its Page 1 and Page 2 inputs at J1. These signals are amplified in three variable gain stages, passed through a muting circuit, and presented to a line out source selector.
- Page 6 THEORY OF OPERATION ® Opti-Voice Page Option Card Sheet 1 of 2 (continued) After the page mute circuits, the page signals take two paths. One path is into U200 [D3], U201 [C3], selector switches which can be DIP switch programmed to select among music, page 1, page 2, and page 1 + page 2 signals (see chart on schematic).
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Page 7: Theory Of Operation, Opti-Source™ Option Card
THEORY OF OPERATION Opti-Source™ Option Card Introduction Refer to the Opti-Source Source Option Card schematic diagram, sheet 1 of 2 for the following information. Note: The designators inside the brackets “[ ]” are the schematic grid coordinates which are provided in order to make it easier to locate components on the schematic sheet indicated in the description. - Page 8 THEORY OF OPERATION Opti-Source™ Option Card Sheet 2 of 2 Refer to the Opti-Source Source Option Card schematic diagram, sheet 2 of 2 for the following information. Note: The designators inside the brackets “[ ]” are the schematic grid coordinates which are provided in order to make it easier to locate components on the schematic sheet indicated in the description.
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Page 9: Model 1B Equalizer Card
S1 [B2] selects either the flush or the surface mount EQ curve, while potentiometer R33 [D1] provides a boost/cut range of adjustment of the 90Hz bass region. Pin 12 of J1 [B2] is grounded and is sensed by the dynamic EQ circuit on Sheet 2 of AmPlus 50 and 100. -
Page 10: General Information
The Opti-Voice Page and Opti-Source Option Cards are used with the AmPlus™ 100 Amplifier only. They cannot be used in the AmPlus 50 Amplifier. Note: If you have either a Source or Page Option Card, you may install it in either option card slot. -
Page 11: Disassembly/Assembly Procedures
DISASSEMBLY/ASSEMBLY PROCEDURES ® Installation Instructions 2. FreeSpace Model 1B, Model 8, and Model 25/32 Equalizer Cards 1. Opti-Voice ® Page and Opti-Source™ Option Cards Note: Refer to Figures 3, 4 and 5 for the following procedures. Note: Refer to Figures 1 and 2 for the following procedures. - Page 12 DISASSEMBLY/ASSEMBLY PROCEDURES Note: The Equalizer PCB will only plug into the connector one way. 2.5 Observing orientation, place the amplifier top cover onto the Amplifier. 2.6 Secure the top cover to the amplifier using the five screws removed in step 2.1. (see Figure 5.) Figure 5.
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Page 13: Opti-Voice Page Option Card Controls
® OPTI-VOICE PAGE OPTION CARD CONTROLS Setting Internal switches There are several switches on the Opti-Voice Page Option Card that must be set before the card is installed into the AmPlus™ 100 amplifier. 1. Page Assignment switches - Use these microphone switches to send your page sources to the required zones. - Page 14 ® OPTI-VOICE PAGE OPTION CARD CONTROLS Making connections and setting levels Setting system controls 1. Set your system controls as follows (see figure above) 1. Page Source Gain control: Set to -20dB 2. Page Trigger level: Center 3. Page Level control: Center 4.
- Page 15 ® OPTI-VOICE PAGE OPTION CARD CONTROLS 2. To adjust the levels for the paging system, follow these steps: 1. While another person is speaking into the microphone, adjust the page trim on the Opti-Voice card until the compressor LED on the Opti-Voice card flashes red during the loudest speech passages.
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Page 16: Opti-Source Option Card Controls
OPTI-SOURCE™ OPTION CARD CONTROLS CH. 1 1 2 3 4 FADE DELAY 1 2 4 CH. 2 MANUAL ENABLE CH. 1 CH. 1 AUTO DISABLE A/B MODE COMPRESSORS MANUAL ENABLE CH. 2 CH. 2 AUTO DISABLE CH.1 CH.2 LED'S SOURCE B LINE INPUT LEVEL... - Page 17 CH 1 CH 2 CH 2 + – + – min max min max CH 1 BOSE CORPORATION Opti–S OURCE ™ SOURCE EXPANSION CARD FRAMINGHAM, MA 01701-9168 Setting System Controls Set the System Controls as follows: 1. If your sound system has been designed for mono sound and you are sending both "A" and "B"...
- Page 18 OPTI-SOURCE™ OPTION CARD CONTROLS Setting Gain Levels (continued) If the music compressor is "ON" 2. Switch the A/B remote control to "B" and adjust the "B" source gain level at the Opti-Source card. (If you are using the card in the AUTO mode, turn the "A" source off and turn the "B" source on).
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Page 19: Amplus 100 Test Setup Parameters
XFR CT pins at J6 pins 6 and 7; 50 Watts is available at the 70/100 V Output and 65 Watts is available at the Channel 2 Output at J6. Refer to the AmPlus Amplifier schematic diagrams in the AmPlus 50 and 100 Business Music Ampifiers Service Manual part number 194101. -
Page 20: Test Procedures
TEST PROCEDURES Table 4. Opti-Source™ Option Card Initial Switch Positions Control Name Reference Designator Default Setting A/B Mode switch, Ch. 1 S1 switch MANUAL position A/B Mode switch, Ch. 2 S2 switch MANUAL position Source Mode switch S3 switch 2-ch (left) Compressor Enable switch, Ch. - Page 21 TEST PROCEDURES Test Setup Notes: (continued) 1.6 Turn on the AmPlus 100 Amplifier, and measure the output level at J6 of the 8. On the Opti-Source™ Option Card, apply AmPlus 100 Amplifier. It should be +1.75 dB ± 1.0 dB for both channels. This is the a short from J3-1 to J3-2, and from J3-3 to J3-2.
- Page 22 TEST PROCEDURES 3.2 Apply a balanced 100 mVrms, 1kHz 5.6 Measure the Channel 2 output level at signal to the Channel 1 and 2 "B" source J6 of the AmPlus 100 Amplifier. inputs at J1 of the Opti-Source™ Option 5.7 It should be 0.0 dB ± 2.0 dB. Card.
- Page 23 TEST PROCEDURES 6.7 Connect an Oscilloscope to the output of the AmPlus 100 Amplifier at J6 so you can visually monitor the output. Leave the dB meter connected as well. 6.8 From a second source, apply a balanced 100 mVrms, 5 kHz signal to the Channel 1 "A"...
- Page 24 TEST PROCEDURES ® Table 6. Opti-Voice Page Option Card Initial Switch Positions Control Name Reference Designator Default Setting Page Input Gain switch, 0/+30dB, Ch. 1 S1 switch +30dB Page Input Gain switch, 0/+30dB, Ch. 2 S2 switch +30dB Opti-Voice Enable switch, Ch.1 S3 switch disabled Opti-Voice Enable switch, Ch.2...
- Page 25 TEST PROCEDURES ® Opti-Voice Page Option Card 10. If you must troubleshoot the Opti-Voice Option Card out of the AmPlus 100 Ampli- Test Setup Notes: fier Option Card Slot, you will need to order the harness assembly used to connect the 1.
- Page 26 TEST PROCEDURES 2.3 Place the Page Assign Switch S6 3.6 Measure the Channel 1 output level at positions 1 and 4 to the enable position J6 of the AmPlus 100 Amplifier. It should be 5.75 Vrms ± 0.5 Vrms. (toward J2). This will enable the Page 1 &...
- Page 27 TEST PROCEDURES 4.11 Repeat these tests with the input at Channel 2 and the output level measured at Channel 1. 5. Music Input to Amplifier Output Tests Note: These tests will check the perfor- mance of the music paths of the Opti- Voice ®...
- Page 28 4. The remote volume inputs at J4, (J4-1 to J4-2 and J4-3 to J4-4 for the AmPlus Test Setup Notes: 100, and J4-1 to J4-2 for the AmPlus 50), are to be terminated with a 10 kΩ, 1/4 1. Place the AmPlus 50 or 100 Amplifier on Watt resistor.
- Page 29 TEST PROCEDURES 1.3 Reference a dB meter to the output Freq. Input Output Level +4.25 dB ± 1.5 dB 60 Hz 31.5 mV level at J6. This is the reference level for +3.3 dB ± 1.5 dB 100 Hz 31.5 mV this test.
- Page 30 TEST PROCEDURES 4. Distortion Test 6.3 Install the Model 1B Equalizer PCB into the EQ jack for the channel you are 4.1 Set up the AmPlus™ Amplifier as listed using for this test, J9 for channel 1 or J10 in the Test Setup Notes. for channel 2.
- Page 31 TEST PROCEDURES Freq. Input Output Level 1.5 Turn on the AmPlus Amplifier and +11.3 dB ± 1.5 dB 95 Hz 31.5 mV measure the gain. There should be a +4.5 dB ± 1.5 dB -4.8 dB ± 1.0 dB change in gain at the 250 Hz 31.5 mV 1 kHz...
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Page 32: Part List Notes
PART LIST NOTES 1. This part is not normally available from Customer Service. Approval from the Field Service Manager is required before ordering. 2. The individual parts located on the PCBs are listed in the Electrical Part List. This part is critical for safety purposes. Failure to use a substitute replacement with the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. -
Page 33: Electrical Part List, Opti-Voice
ELECTRICAL PART LIST ® Opti-Voice Page Option Card Resistors Reference Designator Description Part Number Note R1, 2 50 KΩ, POT, 90 DEG, 188673-050 RTRY, LINEAR R3, 4, 5, 6 22 KΩ, POT, ROTARY, 191931-223 TRIM R64, 110, 111, 120, 121, 124, 128, 10.0 KΩ, 0805, 1/10W, 1% 133625-1002 130, 134, 135, 141, 149, 155, 157,... - Page 34 ELECTRICAL PART LIST ® Opti-Voice Page Option Card Part List Capacitors Reference Designator Description Part Number Note C100, 103, 115, 117 .01 uF, 0805, X7R, 50V, 133623-1035 C101, 104, 138, 152, 154, 155, 220, 10 uF, EL, 105, 16V, 20% 137126-100 224, 227 C102, 105, 106, 116, 118, 120, 127,...
- Page 35 ELECTRICAL PART LIST ® Opti-Voice Page Option Card Part List Integrated Circuits Reference Designator Description Part Number Note U100, 101, 102, 105, 203 OP AMP DUAL, 187473 SOIC-8, NJM4559 U103, 104, 202, 304 0P AMP QUAD, 187472 SOIC-14, NJM2059 U106 DUAL COMPANDER, 178894 NE572N...
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Page 36: Packing List, Opti-Voice Page Card (See Figure 6)
PACKING LIST ® Opti-Voice Page Option Card (see Figure 6) Item Description Part Num ber Q ty. N ote Num ber C O N N KIT, PAG E CAR D , AM PLU S 100 187521 BAG , ANTI-STATIC , 7X8.5 191914 PC B ASSY, PAG E C AR D 187516... -
Page 37: Electrical Part List, Opti-Source Option Card
ELECTRICAL PART LIST Opti-Source™ Option Card Resistors Reference Designator Description Part Number Note R1, 2, 3, 4 22 KΩ, RTRY, TRIM 191931-223 Ω, R100, 102, 106, 107, 110, 113, 200, 133625-1001 1.00 K 0805, 1% 203, 212, 213, 300, 302, 304, 306, 308, 316, 319, 321, 323, 326, 327, 333, 421, Ω, R101, 103, 108, 111, 444, 445... - Page 38 ELECTRICAL PART LIST Opti-Source™ Option Card Capacitors Reference Designator Description Part Number Note C8, 101, 108, 111, 210, 211, 416, 430 680 pF, 0805, 50V, 5% 133622-681 C12, 100, 107, 110, 116, 120, 413, 100 pF, 0805, COG, 50V, 133622-101 427, 310, 319 C102, 103, 104, 109, 112, 115 47 pF, 0805, COG, 50V,...
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Page 39: Packing List, Opti-Source Option Card (See Figure 7)
ELECTRICAL PART LIST Opti-Source™ Option Card Miscellaneous Reference Designator Description Part Number Note RTANG, 5 POS, BLK 177291-05 90DEG, BLIND MATING 188595-010 RTANG, 3 POS, BLK 177291-03 S1, 2, 4, 5 SLIDE, DPST, VERT 176148 R ANGLE, SLIDE, DPDT 188664 S6, 7 DIP, SPST, 4 POS 148777-1... -
Page 40: Freespace Model 1B Eq Card Part List
® FREESPACE MODEL 1B EQ CARD PART LIST Resistors Reference Designator Description Part Number Note R1, 2, 5, 18, 19, 20, 26, 30, 31, 53, 55, JUMPER, CHIP, 0805 133627 56, 64, 84, 85, 86, 91, 92 R3, 50, 63, 80, 81, 82, 93 20.0 KΩ, 0805, 1/10W, 1% 133625-2002 R8, 21... -
Page 41: Packing List, Freespace Model 1B Eq Card (See Figure 8)
® FREESPACE MODEL 1B EQ CARD PART LIST Miscellaneous Reference Designator Description Part Number Note SWITCH, SPDT, VERT, 187481 SLIDE CONN, HEADER, 149538 RTANG, 12 POS PACKING LIST FreeSpace Model 1B EQ card (see Figure 8) Item Description Part Number Q t y . -
Page 42: Model 8 Eq Card Part List
MODEL 8 EQ CARD PART LIST Resistors Reference Designator Description Part Number Note 20.0 KΩ, 1206, 1/8W, 1% 124894-2002 14.0 KΩ, 1206, 1/8W, 1% 124894-1402 R3, 13 4.12 KΩ, 1206, 1/8W, 1% 124894-4121 887 Ω, 1206, 1/8W, 1% R5, 25 124894-8870 11.5 KΩ, 1206, 1/8W, 1% 124894-1152... -
Page 43: Packing List, Model 8 Eq Card (See Figure 9)
MODEL 8 EQ CARD PART LIST Miscellaneous Reference Designator Description Part Number CONN, HEADER, 12 PIN 149538 PACKING LIST Model 8 EQ Card (see Figure 9) Item Description Part Number Q t y . Note Number LIT KIT, PRO EQ CARDS, 1800-V,#2 184815 CONTAINS: 1. -
Page 44: Model 25/32 Eq Card Part List
MODEL 25/32 EQ CARD PART LIST Resistors Reference Designator Description Part Number Note 20.0 KΩ, 1206, 1/8W, 1% 124894-2002 R2, 16, 17 10.0 KΩ, 1206, 1/8W, 1% 124894-1002 R3, 14 22.1 KΩ, 1206, 1/8W, 1% 124894-2212 R5, 27 8.25 KΩ, 1206, 1/8W, 1% 124894-8251 11.5 KΩ, 1206, 1/8W, 1% 124894-1152... -
Page 45: Packing List, Model 25/32 Eq Card (See Figure 10)
PACKING LIST Model 25/32 EQ Card (see Figure 10) Item Description Part Number Q t y . Note Number LIT KIT, PRO EQ CARDS, 1800-V,#2 184815 CONTAINS: 1. POLY BAG 178854 2. INSTALLATION SHEET 183746 3. LABELS, CHASSIS 184816 PCB ASSY, M32 EQ CARD 183743 BAG, ANTISTAT, 4X7.5 177761... -
Page 46: Main Part List, Freespace
MAIN PART LIST ® FreeSpace Zone 2 Remote Control with A/B Switch (see Figure 11) Item Ref. Description Part Number Q t y . Note Number Des. BAG, POLY, 9.38X6X2 mil 100278 SCREW, MACH, 6-32X1.00, OVAL 178115-16 US/CA SCREW, MACH, M3.5X25MM, FLAT, 178116-25 EU, UK, XREC... -
Page 47: Main Part List, Freespace Zone 2 Remote Volume Control W/O A/B Switch (See Figure 12)
MAIN PART LIST ® FreeSpace Zone 2 Remote Volume Control without A/B Switch (see Figure 12) Item Description Part Q t y . Note Number Number PCB ASSY, REM, BMS, VOLUME 187983 WALLPLATE, RVC 188611 US, CA, WALLPLATE, NO SWITCH, RVC 188610 EU, UK KNOB, REMOTE, FREESPACE 6... -
Page 48: Integrated Circuit Pinout Diagrams
COMMONS VSS = PIN 8 OUT/IN SWITCHES VEE = PIN 7 IN/OUT INHIBIT Bose P/N's: 147243/187620, Device Type CD4052, Analog Multiplexer TRACK TRIM A +IN B RECOVERY CAP. A TRACK TRIM B - IN B RECTIFIER INPUT A RECOVERY CAP. B ATTACK CAP. - Page 49 6. B -INPUT 11. V- 7. B OUTPUT 12. D +INPUT 8. V+ 13. D -INPUT 14. D OUTPUT Bose P/N: 187472, Device Type NJM2059M, Bose ® P/N: 187473, Device Type NJM4559M, Quad Op-Amp Dual Op-Amp Pin Configuration 1. Amp Bias Input A 2.
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Page 50: General Troubleshooting Tips
• Note that in most of the wiring diagrams given in the Installer's Guide, Bose part number 191911, the shield of the cable is connected only at the source end. It is poor practice to ground the shield at both ends, because then it serves as a conductor and radiates interference into the center wires. - Page 51 GENERAL TROUBLESHOOTING TIPS Balanced Source Terminals (continued) • XLR Connector - These are industry standard 3-pin connectors with a surrounding metal shield. Pin 1 is always GND. Pin 3 is usually (+) and pin 2 is (-). Older equipment often presents its outputs with pins 2 and 3 interchanged.
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Page 52: Troubleshooting The Opti-Voice
TROUBLESHOOTING ® The Opti-Voice Page Option Card Problem Possible Cause Solution The audio signal The gain levels are Lower the gain level on the distorted sounds distorted set too high. channels until the LED no longer flashes red during loud passages. If necessary, switch the internal microphone pad to the 0dB position. -
Page 53: Troubleshooting The Opti-Source™ Option Card
TROUBLESHOOTING The Opti-Source™ Option Card Problem Possible Cause Solution The audio signal The gain levels are Lower the gain level on the distorted sounds distorted. set too high. channels until the gain LED no longer flashes red during loud music passages. The system sounds The gain levels are Increase the gain levels on the noisy... - Page 57 ® ® AmPlus™ 50 and 100 Amplifier ® Opti-Voice and Opti-Source™ Option Cards ® FreeSpace Model 1B, Model 8 and Model 25/32 EQ Cards © 1998 Bose Corporation Supplement Part Number 194101-S2 Rev. 00...
- Page 58 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE ® ® Bose Corporation The Mountain Framingham, Massachusetts USA 01701 P/N: 194101-S2 Rev. 00 4/98 FOR TECHNICAL ASSISTANCE OR PART ORDERS, CALL 1-800-367-4008...