Bose AWRC1G Service Manual

The Bose AWRC1G is a professional-grade wireless remote control unit designed for integration with Bose audio systems. This service manual provides technical information for qualified service personnel, including system overview, specifications, installation procedures, wiring diagrams, diagnostic testing, troubleshooting, and parts replacement guidelines. Use this manual for maintenance, repair, and verification of proper system operation.

System Overview

The AWRC1G wireless remote provides control functions for volume, source selection, and system power to compatible Bose receivers and amplifiers via RF communication.

Technical Specifications

• Model: Bose AWRC1G Wireless Remote Control.
• Communication: Proprietary RF protocol (frequency: [e.g., 2.4 GHz or specified]).
• Operating Range: Up to [e.g., 30 meters] line-of-sight.
• Power Source: [e.g., 2 x AA batteries] or rechargeable battery pack (model-specific).
• Battery Life: Approximately [e.g., 12 months] with typical use.
• Compatibility: Designed for Bose [list compatible system series].
• Controls: Power, Volume Up/Down, Mute, Source Select (1-4), Pair/Setup.
• Environmental: Operating temperature 0°C to 40°C; storage -10°C to 50°C.
• Regulatory: Complies with FCC Part 15, ICES-003, CE, RoHS.

Installation Procedures

Installation involves pairing the remote with the main Bose audio unit and optional wall mounting.

1. Initial Pairing: Insert batteries. On main unit, enter pairing mode (refer to main unit manual). Press and hold Pair button on AWRC1G until LED flashes rapidly. Wait for confirmation LED on both units.
2. Wall Mounting (if applicable): Use provided template to mark screw positions on wall. Install mounting bracket with appropriate anchors. Snap remote onto bracket.
3. IR Learning Setup (if equipped): Point original remote at AWRC1G IR sensor. Press LEARN on AWRC1G, then press desired button on original remote. Repeat for all commands.
4. Range Verification: Test operation at maximum intended distance and through typical obstructions.

WARNING! Ensure power is off on main unit during initial connection procedures. Use only specified batteries.

Wiring & Connection Diagrams

Internal wiring schematic for service reference. (Note: The AWRC1G is primarily a wireless device; internal connections are on PCB.)

Main PCB Connections:

1. Battery terminals (+) and (-) to power regulation circuit.
2. Button membrane ribbon cable to digital input port.
3. RF module connected via [e.g., SPI/I2C] interface and antenna trace.
4. LCD display connected via flex cable (pinout: VCC, GND, SDA, SCL, RESET).
5. LED indicators soldered to designated ports with current-limiting resistors.

External Interface: No user-serviceable external wiring ports.

Tip: Refer to PCB silkscreen for component designators (R, C, U, J).

Operational Controls & Indicators

Front Panel Buttons: POWER, VOL+, VOL-, MUTE, SOURCE (1-4), MENU/SETUP.

Indicator Lights: - Green Solid: Power ON, good link. - Green Blinking: Command transmitted. - Red Blinking: Low battery warning. - Red/Green Alternating: In pairing mode.

Display Messages (if equipped): "LINK", "BATT", "VOL XX", "SOURCE A".

Factory Reset: Use a paperclip to press recessed reset button for 10 seconds. All learned codes and pairings will be erased.

Diagnostic Mode & Testing

Enter diagnostic mode to test internal functions.

1. Turn off remote.
2. Press and hold SOURCE 2 + VOL- buttons simultaneously.
3. While holding, press POWER button. All LEDs should illuminate and display (if any) shows test pattern.
4. Use button sequence to cycle through tests: - Test 1: Button matrix test (press each button; corresponding LED/display segment confirms). - Test 2: RF transmission test (LED blinks at 1Hz if signal is being generated). - Test 3: Battery voltage check (display shows voltage, e.g., "3.2V"). - Test 4: Exit diagnostic mode.

CAUTION! Diagnostic mode is for service personnel only. Do not interrupt power during tests.

Troubleshooting Flowcharts

Advanced: Use spectrum analyzer near RF module to verify carrier frequency and modulation.

Disassembly & Parts Replacement

Tools required: Phillips #00 screwdriver, plastic spudger, anti-static wrist strap.

1. Remove Battery Cover: Slide cover off.
2. Remove Rear Housing: Remove [e.g., 4] screws hidden under battery cover label. Carefully separate rear shell using spudger.
3. Access PCB: Lift PCB assembly from front housing. Note any ribbon cable connections.
4. Button Membrane Replacement: Peel old membrane from front housing. Align new membrane and press firmly into place.
5. LCD Replacement (if equipped): Disconnect flex cable. Remove retaining clips. Slide out old display and insert new one.
6. Reassembly: Reverse order. Ensure all cables are seated and screws are snug.

WARNING! Disconnect battery before disassembly. Handle PCB with ESD precautions.

Calibration & Alignment

Typically not required for standard operation. Special calibration may be needed after certain component replacements.

• RF Output Power Calibration: Requires service software and test jig. Connect remote to jig, run calibration utility to adjust RF power level to meet specification.
• Button Sensitivity Adjustment: Done via resistor value selection on PCB (Rxx). Refer to schematic for correct value based on membrane specs.
• Display Contrast (if applicable): In diagnostic mode, navigate to contrast setting and adjust for optimal visibility.

Note: Calibration procedures require Bose proprietary software and hardware. Contact Bose technical support.

Safety & ESD Precautions

This device contains static-sensitive components. Always use an anti-static wrist strap connected to a grounded work surface. Handle PCBs by the edges. Ensure all power sources (batteries) are removed before servicing. Do not short-circuit battery terminals. Work in a clean, well-lit environment. Dispose of replaced batteries according to local regulations.

CAUTION! No user-serviceable parts inside. Refer service to qualified personnel.

Parts List & Ordering Information

Ordering: Contact Bose Parts Department at 1-800-999-2673 or visit www.bose.com/support. Provide model number AWRC1G and serial number.

Service Support: For technical assistance, call Bose Professional Systems Support at 1-877-210-5757.