The SONY TFM-9450W is a solid-state FM/AM radio designed to provide enjoyable broadcasts with high-fidelity sound. This instruction manual details its features, specifications, and usage guidelines.
Function Description:
The TFM-9450W utilizes advanced circuitry, including ITL (Input Transformerless) and OTL (Output Transformerless) designs, coupled with a full-tone speaker. This combination ensures an extended frequency response and optimal loudness effect, delivering powerful and clear audio. The radio also features a blue illumination for its dial scale, enhancing visibility and clarity during tuning.
Important Technical Specifications:
- Semi-conductors: The device is equipped with 11 transistors, indicating a robust solid-state design.
- Frequency Range:
- FM: 87.5 MHz to 108 MHz
- AM: 530 kHz to 1,605 kHz
- Antenna System:
- FM: Utilizes an AC line antenna, with the option to connect an external antenna for improved reception.
- AM: Features a built-in ferrite bar antenna for enhanced sensitivity.
- Power Output:
- Maximum: 5W
- Undistorted: 3.8W
- Power Requirement: AC 120V, 60 Hz
- Dimensions: 8 5/8" (H) x 14 3/8" (W) x 5 7/8" (D) (220 x 365 x 150 mm)
- Weight: 7 lb 6 oz (3.35 kg)
Usage Features:
The TFM-9450W offers several user-friendly controls for an optimal listening experience:
- TUNING KNOB (1): This knob allows users to precisely tune into their desired FM or AM station.
- VOLUME CONTROL KNOB (2): Turning this knob clockwise powers on the unit with a slight click and adjusts the volume level. Turning it counter-clockwise to the "OFF" position will power down the device with an audible click.
- TONE CONTROL KNOB (3): This control allows for sound customization. Turning it clockwise enhances treble, while turning it counter-clockwise emphasizes bass.
- BAND SELECT KNOB (4): Users can select between FM or AM bands using this selector. For drift-free FM reception, the switch can be set to the AFC (Automatic Frequency Control) position.
- LOUDNESS SWITCH (5): When set to "ON," this switch activates an equalization network. This network compensates for changes in human hearing's tonal response at low volume levels, ensuring a fuller sound. It automatically disconnects when the amplifier operates at high volume levels.
To Increase Sensitivity:
- For AM reception: The built-in ferrite bar antenna provides maximum sensitivity. To achieve the best receiving condition, users should rotate the set horizontally until the most favorable sound is obtained.
- For FM reception: The radio uses an AC line antenna. If reception is unsatisfactory, users can remove the metal fitting from the antenna terminal and connect an external antenna for improved signal quality.
Maintenance Features:
To ensure the longevity and optimal performance of your TFM-9450W, consider the following maintenance guidelines:
- Environmental Care: Keep the radio away from areas with extremely high temperatures or excessive moisture, as these conditions can damage the internal components.
- Cleaning: The cabinet should be wiped with a soft cloth. Avoid using strong solvents such as thinner or benzine, as these can damage the finish.
- Troubleshooting: In case of any inquiry or problem with the set, it is recommended to consult your nearest SONY dealer or SONY service station for professional assistance.
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