Sony STR-DH190 Stereo Amplifier User Manual

Introduction

This manual provides essential instructions for the safe and efficient use of your Sony STR-DH190 Stereo Amplifier. The STR-DH190 is designed to deliver high-quality audio playback from various sources, featuring versatile input options including a phono input with a built-in MM cartridge compatible phono equalizer, and Bluetooth connectivity for wireless streaming. Its robust construction, including a high-rigidity chassis, ensures rich and crisp sound reproduction.

Setup

Unpacking and Initial Inspection

Carefully remove the amplifier and all accessories from the packaging. Ensure all components are present and undamaged. The included accessories are: Remote Commander (RMT-AA400U), two AAA batteries, FM antenna cable, Instruction Manual, and a Start Guide.

Placement

Place the amplifier on a stable, level surface with adequate ventilation. Avoid placing it near heat sources or in direct sunlight. Ensure there is enough space around the unit for proper airflow.

Image: Front view of the Sony STR-DH190 Stereo Amplifier with dimensions (Width: 430mm, Height: 133mm, Depth: 284mm).

Connecting Speakers

Connect your passive speakers to the speaker terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for each speaker. The amplifier supports 2-channel stereo output.

Connecting Audio Devices

The STR-DH190 offers multiple input options:

• Phono Input: Connect a turntable to the PHONO input terminals. Ensure your turntable has an MM cartridge. Connect the ground wire from your turntable to the SIGNAL GND terminal on the amplifier.
• Line Inputs (INPUT 1-4): Connect other audio sources such as CD players, cassette decks, or media players to the LINE IN (INPUT 1-4) RCA terminals.
• Portable In: A 3.5mm stereo mini-jack input is available on the front panel for connecting portable audio devices.

Connecting the FM Antenna

Connect the supplied FM antenna cable to the FM ANTENNA terminal on the rear panel for radio reception.

Image: Rear panel of the Sony STR-DH190 Stereo Amplifier showing various input and output terminals, including FM antenna, phono input, line inputs, and speaker terminals.

Power Connection

Once all audio and speaker connections are made, plug the amplifier's power cord into a wall outlet.

Operating Instructions

Powering On/Off

Press the POWER button on the front panel or the remote control to turn the amplifier on or off.

Selecting an Input Source

Use the INPUT SELECTOR knob on the front panel or the corresponding input buttons (e.g., PHONO, INPUT 1-4, BLUETOOTH, FM) on the remote control to select your desired audio source.

Adjusting Volume

Rotate the VOLUME knob on the front panel or use the VOLUME +/- buttons on the remote control to adjust the sound level.

Bluetooth Pairing

To connect a Bluetooth device:

1. Select the BLUETOOTH input on the amplifier.
2. On your smartphone or other Bluetooth device, enable Bluetooth and search for available devices.
3. Select "STR-DH190" from the list of devices to pair.
4. Once paired, you can stream audio wirelessly from your device to the amplifier.

FM Tuner Operation

Select the FM input. Use the TUNING +/- buttons on the remote control to scan for stations. You can preset up to 30 FM stations for quick access using the MEMORY and PRESET +/- buttons.

Phono Volume Offset

The amplifier includes a "Phono Volume Offset" function to adjust the volume difference between a record player and other playback devices (like a CD player) connected to the line inputs. Refer to the detailed instruction manual for specific steps on how to configure this setting.

Image: The RMT-AA400U Remote Commander for the Sony STR-DH190 Stereo Amplifier, showing various control buttons for power, input selection, volume, tuning, and sound adjustments.

Maintenance

Cleaning the Unit

To clean the amplifier, wipe the exterior surfaces with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish. Ensure the unit is unplugged before cleaning.

Ventilation

Periodically check that the ventilation openings on the amplifier are not blocked by dust or debris. Proper ventilation is crucial to prevent overheating and ensure long-term performance.

Troubleshooting

If you experience issues with your STR-DH190 amplifier, refer to the following common solutions:

• No Sound:
  • Check that the amplifier is powered on and not in standby mode.
  • Verify that the correct input source is selected.
  • Ensure speaker cables are securely connected to both the amplifier and speakers, with correct polarity.
  • Check the volume level and ensure it is not muted.
  • Confirm that the audio source device is playing and its volume is adequate.
• Bluetooth Connection Issues:
  • Make sure the amplifier is in Bluetooth input mode.
  • Ensure your Bluetooth device is within range (typically 10 meters or 33 feet) and Bluetooth is enabled.
  • Try unpairing and re-pairing the device.
  • Restart both the amplifier and your Bluetooth device.
• Poor FM Reception:
  • Ensure the FM antenna cable is properly connected.
  • Adjust the position of the FM antenna for better signal reception.
  • Check for local interference sources.

If the problem persists after trying these steps, consult the comprehensive instruction manual or contact Sony customer support.

Specifications

Warranty Information

This product is covered by Sony's standard manufacturer's warranty. For detailed information regarding warranty terms, conditions, and duration, please refer to the warranty card included with your product or visit the official Sony support website for your region. Keep your proof of purchase for warranty claims.

Customer Support

For further assistance, technical support, or service inquiries, please contact Sony customer support. You can find contact information, FAQs, and additional resources on the official Sony website. Please have your product model number (STR-DH190) and serial number ready when contacting support.