Sony STR-DE197 Operating Instructions

To connect external speakers to the Sony STR-DE197, ensure the receiver is turned off. Connect the speaker wires to the corresponding terminals on the back of the receiver, matching the positive (+) and negative (-) terminals on both the receiver and the speakers.
First, check that all cable connections are secure and correct. Make sure the receiver is set to the correct input source. Also, verify that the speakers are properly connected and the volume is turned up. If the issue persists, try resetting the receiver to factory settings.
To reset the Sony STR-DE197, turn off the receiver. Hold down the "Power" button for five seconds. Release when "Initialize" appears on the display, indicating the reset is complete.
To clean the Sony STR-DE197, unplug it and use a soft, dry cloth to wipe the exterior. Avoid using any liquid cleaners or abrasive materials. For stubborn spots, slightly dampen the cloth with water.
Check the speaker connections for any loose wires. Ensure the speakers are not damaged and compatible with the receiver. Adjust the audio settings and ensure no other devices are causing interference.
The Sony STR-DE197 does not have a dedicated subwoofer output. However, you can connect a subwoofer that supports speaker-level inputs by connecting it to the speaker terminals along with the main speakers.
The Sony STR-DE197 supports standard stereo audio formats. It does not support advanced surround sound formats such as Dolby Digital or DTS.
Use the "Input Selector" knob on the front panel of the receiver to switch between different input sources. Turn the knob until the desired source appears on the display.
Ensure the receiver is placed in a well-ventilated area and not stacked with other electronic devices. Check for any obstructions blocking the vents. If the issue persists, it may require servicing.
Ensure the FM antenna is fully extended and positioned for optimal reception. Consider using an external antenna for better signal strength. Moving the receiver to a different location might also improve reception.