bose awrcc2 service manual pdf

The Bose AWRCC2 is a professional audio component, likely a remote control unit, amplifier, or controller within a Bose audio system. This service manual provides technical information for qualified service personnel, including disassembly instructions, circuit diagrams, parts lists, troubleshooting procedures, and calibration guidelines. It is intended for repair and maintenance purposes only.

Safety Precautions

This manual is for qualified technicians. Observe all standard electronic service safety protocols.

Product Overview & Identification

Identify your unit via model number (AWRCC2) and serial number location.

1. Front Panel: Likely includes buttons, display, or status LEDs.
2. Rear Panel: Contains system connectors (e.g., data, control, power).
3. Internal Boards: Main logic board, power supply, interface modules.
4. Identification: Model and S/N are typically on a label on the rear or bottom chassis.

WARNING! Only service personnel with knowledge of Bose systems should perform repairs.

Technical Specifications

• Model: Bose AWRCC2
• Type: Audio System Remote Control / Controller
• Power Requirements: Refer to schematic (e.g., 12V DC, 24V DC, or 120V AC).
• Communication: Likely uses proprietary Bose control protocol (RS-485, RS-232, or similar).
• Connectors: Multi-pin control ports, power input, possible relay outputs.
• Operating Environment: Commercial/Professional audio system specifications.
• Dimensions & Weight: Consult physical unit or parts list.

Disassembly & Reassembly

Step-by-step guide to access internal components.

1. Power off and disconnect all cables.
2. Remove rear panel screws (note lengths and positions).
3. Carefully separate chassis halves, noting any ribbon cables or internal connectors.
4. Document cable routing before disconnecting internal harnesses.
5. To access main PCB, remove mounting screws and lift board from standoffs.
6. Reassembly is the reverse order. Ensure all connectors are fully seated.

CAUTION! Use correct tools. Avoid stressing plastic clips or flex cables.

Circuit Diagrams & Schematics

Reference diagrams for main board, power supply, and interface circuits.

• Main Logic Schematic: Shows microprocessor, memory, clock circuits, and communication interfaces.
• Power Supply Schematic: Details voltage regulators, filtering, and protection circuits.
• I/O Interface Schematic: Shows connector pin drivers, opto-isolators, or relay circuits.
• Symbol Legend: Standard electronic symbols used in diagrams.

Note: Schematics are proprietary to Bose. Use for troubleshooting specific circuits only.

PCB Layouts

Top and bottom layer views of printed circuit boards for component location and trace routing.

1. Main PCB (Top): Identifies component designators (R1, C5, U3, etc.).
2. Main PCB (Bottom): Shows solder points and via locations.
3. Power PCB Layout: Highlights high-current traces and thermal management areas.
4. Test Points: Locations and nominal voltages for key test points (TP1, TP2, etc.).

Parts List & Exploded Views

Complete list of replaceable components with Bose part numbers.

Exploded View: Diagram showing assembly order and relationship of mechanical parts (chassis, boards, brackets, screws).

Troubleshooting Flowcharts

Systematic approach to diagnose common failures.

1. Unit Dead (No Power): Check input voltage > Fuse > Main regulator outputs.
2. No Communication: Verify data cable > Check termination > Test I/O voltages on comm IC.
3. Erratic Operation: Inspect for cold solder joints > Check power supply ripple > Verify firmware.
4. Specific Button/LED Failure: Test switch continuity > Check corresponding driver circuit on PCB.

Tip: Use a multimeter and oscilloscope to follow the flowchart steps.

Test & Calibration Procedures

For verifying repair success and system alignment (if applicable).

• Power-Up Test: Verify all DC voltages are within ±5% of schematic values.
• Functional Test: Simulate normal operation via connected Bose system; verify command response.
• Communication Test: Use Bose diagnostic software or loopback test to verify data integrity.
• Calibration: Some parameters may require software calibration via service interface (detailed in separate service bulletin).

Connector Pinouts

Definition of all external and internal connectors.

Regulatory & Service Information

FCC/CE compliance statements. Service contact details.

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that it does not cause harmful interference.

Copyright: © Bose Corporation. All rights reserved. This document contains proprietary information and is for authorized service use only.

Service Support: For genuine Bose parts and technical service bulletins, authorized service providers should contact Bose Professional Technical Support or visit the Bose Professional Partner Portal.