Bose panaray 266601 service manual rev1
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1 CONTENTS CAUTION: The Bose Panaray Digital Controller contains no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service. PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF 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. The Bose Panaray Digital Controller is covered by a limited 1-year transferable warranty. WARRANTY Warranty ............................................................................................................................................. 1 Safety Information ............................................................................................................................. 2 Electrostatic Discharge Sensitive (ESDS) Device Handling ....................................................... 2 Specifications.................................................................................................................................... 3 Part List Notes .................................................................................................................................. 3 Packaging Part List ........................................................................................................................... 4 Figure 1. Packaging Exploded View ..................................................................................................4 Main Part List .................................................................................................................................... 5 Figure 2. Panaray ® Digital Controller Exploded View ........................................................................6 Electrical Part Lists ....................................................................................................................7-23 Main PCB Assembly ....................................................................................................................7-21 Display PCB Assembly.............................................................................................................. 22-23 Disassembly Procedures ............................................................................................................... 24 Test Procedures.......................................................................................................................25-29 Appendix....................................................................................................................................30-59 Bose ® Professional Loudspeaker Frequency Response Curves .......................................30-41 Bose Professional Loudspeaker EQ Preset Lists................................................................42-55 Theory of Operation .................................................................................................................56-59 Main PCB Overview....................................................................................................................... 56 Front Panel PCB Overview ........................................................................................................... 56 Figure 3. Panaray Platform Diagram ..............................................................................................56 Power Supply .................................................................................................................................. 57 DSP Circuit ...................................................................................................................................... 57 Analog/Digital Audio Routing ......................................................................................................... 58 Front Panel AVR Microprocessor ..................................................................................................58 Figure 4. Block Diagram .................................................................................................................59 Service Manual Revision History .................................................................................................60
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2 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. Use the following checks to perform these measurements: A. Leakage Current Hot Check-With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leak- age current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 "Leakage Current for Appliances" and Underwriters Laboratories (UL) UL6500 / UL60065 / IEC 60065 paragraph 9.1.1. With the unit AC switch first in the ON position and then in OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all ex- posed 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 path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the unit power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER. B. Insulation Resistance Test Cold Check-(1) Unplug the power supply and connect a jumper wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure the resistance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the unit. When testing 3 wire products, the resistance measured to the product enclosure should be between 2 and infinite MOhms. Also, the resistance measured to exposed input/output connectors should be between 4 and infinite MOhms. When testing 2 wire products, the resistance measured to exposed input/output connectors should be between 4 and infinite MOhms. If it is not within the limits specified, there is the possibility of a shock hazard, and the unit must be repaired and rechecked before it is returned to the customer. 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 straps that connect to conductive floor mats. - Avoid touching the leads or contacts of ESDS devices or PC boards even if properly grounded. Handle boards by the edges only. - Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert unpro- tected devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap or plastic trays. DEVICE HANDLING