Bose 802c - Manuals - manualsarea.com

Page 2 - Contents

2 Contents Safety Information ............................................................................................................................ 3Electrostatic Discharge Sensitive (ESDS) Device Handling ........................................................ 4Specifications .................

Page 3 - SAFETY INFORMATION; PROPRIETARY INFORMATION

3 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 t...

Page 4 - DEVICE HANDLING

4 DEVICE HANDLING ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) 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 s...

Page 5 - SPECIFICATIONS

5 SPECIFICATIONS Input Connections:(per channel) One (1) balanced female XLR connectorOne (1) unbalanced 1/4" phone jack Output Connections:(per channel) Two (2) 1/4" phone jacks per channel(outputs used depend upon mode selected) Input Impedance: Balanced input, 4k Ω Unbalanced input, 42k Ω...

Page 6 - TECHNICAL DESCRIPTION

6 The 802 ® C System Controller is a sophisticated signal processing device which combines the functions of three equalizers, an automatic switching circuit, and an electronic crossover. The802C system controller automatically selects the proper crossover function and equalizationcurve for a given s...

Page 7 - DISASSEMBLY/ASSEMBLY PROCEDURES

7 DISASSEMBLY/ASSEMBLY PROCEDURES Figure 1. Locking Tab Screw Location Note: Refer to the Figures (2 and 3) for thefollowing procedures. 1. Top Cover Removal 1.1 Remove the four screws (two locatedat the rear of the unit and one located oneach side of the unit) that secure the topcover to the chassi...

Page 9 - TEST PROCEDURES; LED Indicator Status

9 TEST PROCEDURES 4. Bi-Amp Frequency Response Note: This test is performed with both the802 AMP and the 302 AMP output jacksused at the same time. 4.1 Apply a 750Hz, 500mVrms signal tothe input of the 802C. 4.2 Reference a dB meter to the 802 AMPoutput jacks (while in the Bi-Amp mode). 4.3 Refer to...

Page 11 - PART LIST NOTES

11 1. This part is not normally available from Customer Service. Approval from the Field ServiceManager is required before ordering. 2. The individual parts located on the PCB are listed in the Electrical Part List. 3. This part is critical for safety purposes. Failure to use a substitute replacemen...

Page 12 - MAIN PART LIST

12 MAIN PART LIST Reference Designator Description Part Number N o t e J1, 3 CONNECTOR, XLR,INSERT 121823 J2, 4-8 JACK, PHONE 121570 J9 WAFER, 7PIN, (2461) 123237-07 J9 CONNECTOR, 7PIN(21458) 121970-07 J10 WAFER, 6PIN (2461) 123237-06 J10 CONNECTOR, 6PIN(21458) 121970-06 P1, 2 TEMINAL, FASTON 111262...

Page 14 - ELECTRICAL PART LIST; Resistors

14 ELECTRICAL PART LIST Resistors Reference Designator Description P a r t Number N o t e R1, 2 2.7k Ω , 1/4 Watt, 5% 117704- 1212725 R3, 4 3.3k Ω , 1/4 Watt, 5% 117704- 1213325 R5-7, 11, 15, 118, 218 160k Ω , 1/4 Watt, 5% 117704- 1211645 R8, 9, 12, 13, 16, 17, 101, 210, 104,204 330k Ω , 1/4 Watt, 5...

Page 15 - SMD Resistors

15 ELECTRICAL PART LIST Resistors (continued) Reference Designator Description P a r t Number N o t e R144, 244 56k Ω , 1/4 Watt, 2% 117704- 1215632 R148, 248 4.12k Ω , 1/4 Watt, 1% 119976- 2214121 R149, 249 23.7k Ω , 1/4 Watt, 1% 119976- 2212372 R150, 250 30.9k Ω , 1/4 Watt, 1% 119976- 2213092 R160...

Page 16 - Capacitors

16 ELECTRICAL PART LIST Capacitors Reference Designator Description P a r t Number N o t e C 1 .0047uF, 220V.0047uF, 1.4KV, 100/120V 120993103447 3 C2, 3 .015uF, FILM 118091-153 C 4 .01uF, CERAMIC DISC 119696-103 C5, 6 470uF, ELECTROLYTIC 110704 C7-10 1uF, ELECTROLYTIC 119942-1R0 C11-19, 22 .1uF, CE...

Page 17 - Diodes

17 ELECTRICAL PART LIST Diodes Transistors Integrated Circuits Reference Designator Description P a r t Number N o t e U1, 8, 9 QUAD OP AMP, LS-404 120535/192166 4U2 VOLT REG, 78L15 121116-1U3 VOLT REG, 79L15 121117-1U4 QUAD NAND CD-4011 121854 U5, 6 QUAD OP AMP, RC4156 192166 4U7, 10 QUAD AW. SW. C...

Page 18 - VOLTAGE CONVERSION INSTRUCTIONS

18 VOLTAGE CONVERSION INSTRUCTIONS 220 Volt to 110 Volt Conversion 110 Volt to 220 Volt Conversion 1. 220 Volt to 110 Volt Conversion Note: Conversions must be performedwith the line cord disconnected from anypower source. Refer to Figure 3 below forthe following procedures. The jumperslisted in par...