Sony SA-GN10 - User Manual

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Summary

General Information

Locating Controls

Identifies the location and function of front and rear panel controls for the subwoofer.

Printed Wiring Boards - Main Section

Printed Wiring Boards - Power Section

Exploded Views

Front Section Exploded View

Exploded view diagram of the front section, detailing parts and their assembly.

Rear Section Exploded View

Exploded view diagram of the rear section, detailing parts and their assembly.

Summary

General Information

Locating Controls

Identifies the location and function of front and rear panel controls for the subwoofer.

Printed Wiring Boards - Main Section

Printed Wiring Boards - Power Section

Exploded Views

Front Section Exploded View

Exploded view diagram of the front section, detailing parts and their assembly.

Rear Section Exploded View

Exploded view diagram of the rear section, detailing parts and their assembly.

The SA-GN10 is an active subwoofer, designed as an optional component for the MHC-GN90D/GN100D systems. It features a magnetically shielded design, ensuring minimal interference with other electronic devices.

Important Technical Specifications:

Speaker Unit: The subwoofer is equipped with a 20 cm diameter, cone-type speaker, optimized for deep and resonant bass reproduction.
Amplifier Section: It boasts a continuous RMS output of 150 W (1.0%), providing ample power for impactful low-frequency sound. The reproduction frequency range spans from 20 Hz to 200 Hz, covering the full spectrum of audible bass. The high-frequency cut-off frequency is adjustable from 50 Hz to 200 Hz, allowing users to tailor the subwoofer's output to seamlessly integrate with their main speakers.
Inputs: The device includes a LINE IN input pin jack, facilitating easy connection to compatible audio sources.
General Specifications:
- Power Requirements: The SA-GN10 is versatile in its power compatibility, supporting 110-120 V or 220-240 V at 50/60 Hz, making it suitable for use in various regions.
- Power Consumption: It consumes 160 W during operation.
- Dimensions: The subwoofer measures approximately 265 x 430 x 400 mm (width/height/depth), offering a compact footprint for its performance capabilities.
- Mass: Weighing 13 kg, it is a substantial unit, contributing to its stable sound reproduction.

Usage Features:

The SA-GN10 offers user-friendly controls for optimal sound customization. On the front panel, there's a SUBWOOFER ON/OFF indicator and switch, allowing for easy power management. Two rotary controls are provided:

CUT OFF FREQ: This control allows adjustment of the high-frequency cut-off, ranging from 50 Hz to 200 Hz. This feature is crucial for blending the subwoofer's output with the main speakers, preventing overlapping frequencies and ensuring a cohesive soundstage.
SUBWOOFER LEVEL: This control enables users to adjust the overall volume or intensity of the subwoofer's bass output, from minimum to maximum, to suit personal preferences and room acoustics. The rear panel features the LINE IN input pin jack for connecting the subwoofer to an audio source.

Maintenance Features:

The service manual provides detailed diagrams and parts lists to aid in maintenance and repair.

Printed Wiring Boards: The manual includes layouts for the MAIN Section, POWER Section, and INPUT Board, indicating the placement of components and patterns. This is essential for technicians to identify and troubleshoot issues.
Schematic Diagrams: Comprehensive schematic diagrams illustrate the internal circuitry, including the amplifier section, power supply, and control logic. These diagrams are critical for understanding the device's electrical operation and diagnosing faults.
Exploded Views: Detailed exploded views of the Front Section and Rear Section show the assembly of mechanical parts, such as the speaker, knobs, and chassis components. This aids in disassembly and reassembly for repairs or part replacement.
Electrical Parts List: A complete list of electrical parts, including capacitors, connectors, diodes, ICs, transistors, resistors, fuses, and relays, is provided with part numbers, descriptions, and specifications. This ensures that correct replacement parts are used, maintaining the device's performance and safety.
Safety-Related Components: The manual explicitly identifies safety-related components with a special mark (▲ or dotted line with ▲) on schematic diagrams and in parts lists. It emphasizes that these components are critical for safe operation and must be replaced only with specified Sony parts to prevent potential hazards.
Standardized Parts: Notes indicate that some replacement parts may differ slightly from the original due to standardization, but their functionality remains compatible.
Non-Stocked Items: Items marked with an asterisk (*) are not routinely stocked, and some delay may be anticipated when ordering them.
Accessories: A list of supplied accessories, such as foot pads and an audio connecting cord, is also included.