Sony STR-DE135 Operating Instructions

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Sony STR-DE135 Specification

The Sony STR-DE135 is a stereo receiver designed to deliver robust audio performance with a straightforward user experience. This model supports a wide range of audio inputs and is tailored for users seeking dependable sound quality in a home audio setup. The receiver outputs 135 watts of power, ensuring ample sound amplification for various speaker systems. It operates in a frequency response range of 20 Hz to 20 kHz, which covers the full spectrum of human hearing, providing clarity in both bass and treble frequencies.

The STR-DE135 comes with multiple input options, including analog connections to support devices like CD players, cassette decks, and turntables, assuming the use of a phono preamp. It features AM/FM radio capabilities with a built-in tuner, allowing users to store and access up to 30 preset stations for quick channel surfing. The front panel of the receiver includes intuitive controls with a simple interface for volume adjustment, input selection, and tuning.

For speaker connectivity, the receiver offers binding post terminals that accommodate a secure connection for speaker wires, ensuring minimal signal loss. The design focuses on reliability and ease of use, with a durable chassis that minimizes vibrations and enhances sound fidelity. While the STR-DE135 does not include advanced digital features like Bluetooth or HDMI connectivity, it excels in delivering powerful stereo sound for traditional audio components. This model is ideal for enthusiasts who prioritize audio performance and simplicity over modern digital integration, making it a solid choice for a classic home audio experience.

Sony STR-DE135 F.A.Q.

How can I reset the Sony STR-DE135 receiver to its factory settings?

To reset the Sony STR-DE135 to its factory settings, turn off the receiver. Then, press and hold the "Power" button while pressing the "FM/AM" button. Release the buttons when "Initialize" appears on the display. This will reset all settings to their defaults.

What should I do if there's no sound coming from the speakers?

First, ensure that the speakers are properly connected to the receiver. Check that the volume is turned up and not muted. Verify that the correct input source is selected. If the problem persists, try connecting a different set of speakers to determine if the issue is with the speakers or the receiver.

How do I connect my TV to the Sony STR-DE135?

To connect your TV to the Sony STR-DE135, use an RCA audio cable. Connect one end to the TV's audio output and the other to the receiver's TV/DBS input. Ensure that the receiver is set to the TV/DBS input to hear audio from your TV.

Why is the sound distorted at high volumes?

Distorted sound at high volumes can be due to speaker impedance mismatch or overloading the amplifier. Ensure your speakers match the receiver's supported impedance. Avoid maxing out the volume to prevent distortion and potential damage to the speakers.

What are the steps to tune radio stations on the STR-DE135?

Press the "Tuning Mode" button to select "Auto Tuning". Use the "Tuning +" or "Tuning -" buttons to automatically search for a station. For manual tuning, select "Manual Tuning" and adjust the frequency with "Tuning +" or "Tuning -".

How can I improve FM/AM radio reception on my receiver?

To improve FM/AM reception, adjust the antenna and place it in a location with fewer obstructions. For FM, use a longer wire or an outdoor antenna if necessary. For AM, reposition the AM loop antenna for better signal clarity.

What is the best way to clean and maintain my Sony STR-DE135 receiver?

Turn off and unplug the receiver before cleaning. Use a soft, dry cloth to wipe the exterior. Avoid using liquid cleaners or sprays directly on the unit. Regularly check and clean the vent openings to prevent dust accumulation and overheating.

How do I connect a subwoofer to the STR-DE135?

The Sony STR-DE135 does not have a dedicated subwoofer output. However, you can connect a subwoofer using speaker-level inputs, if your subwoofer supports it. Connect the subwoofer in parallel with the front speakers.

Can I use Bluetooth with the Sony STR-DE135 receiver?

The Sony STR-DE135 does not have built-in Bluetooth. To use Bluetooth, you will need an external Bluetooth adapter. Connect the adapter to one of the available audio inputs on the receiver to stream music wirelessly.

What should I do if the receiver overheats?

Ensure that the receiver is placed in a well-ventilated area and that the vents are not blocked. Reduce the volume level to lessen the load on the amplifier. If overheating persists, have the receiver checked by a professional technician.