Sony HT-DDW840 - User Manual

Questions and Answers

A
annathorntonAug 19, 2025
Why is there severe hum or noise coming from my Sony HT-DDW840?
- R
  Robert WoodsAug 19, 2025
  Severe hum or noise from your Sony Stereo Receiver can stem from several factors. First, ensure that all speakers and components are securely connected. Check that connecting cords are away from transformers, motors, TVs, or fluorescent lights (at least 3 meters away). Try moving your TV away from the audio components. Finally, clean the plugs and jacks with a cloth slightly moistened with alcohol.
C
Christian DennisAug 21, 2025
How to fix no sound from a specific component on my Sony Stereo Receiver?
- M
  Melissa MillsAug 21, 2025
  If there is no sound from a specific component connected to your Sony Stereo Receiver, check the following: ensure the component is correctly connected to the appropriate audio input jacks, verify that the connecting cords are fully inserted into the jacks on both the receiver and the component, and confirm that you have selected the correct component on the receiver.
L
lreynoldsAug 23, 2025
What to do if radio stations cannot be tuned in on my Sony HT-DDW840 Stereo Receiver?
- C
  Colin BakerAug 23, 2025
  If you are having trouble tuning into radio stations on your Sony Stereo Receiver, verify that you have selected AV2 as the command mode. Ensure the antennas are securely connected; adjust them or connect an external antenna if needed. If tuning with automatic tuning, the signal strength may be too weak, so try direct tuning. When using direct tuning for AM stations, make sure the tuning interval is set correctly. If tuning by scanning preset stations, preset the stations if none are stored or have been cleared. Finally, press DISPLAY to show the frequency in the display.
A
Alan DixonAug 26, 2025
What to do if there is no picture or unclear picture on TV screen from Sony HT-DDW840 Stereo Receiver?
- R
  rhernandezAug 27, 2025
  If you experience no picture or an unclear picture on the TV screen or monitor when using your Sony Stereo Receiver, first select the appropriate function on the receiver. Next, set your TV to the correct input mode. Finally, try moving your TV away from the audio components.
J
Jerry HallAug 28, 2025
How to fix unbalanced left and right sounds on Sony Stereo Receiver?
- A
  Anthony BrightAug 28, 2025
  To correct unbalanced or reversed left and right sounds on your Sony Stereo Receiver, first check that the speakers and components are connected correctly and securely. If the issue persists, adjust the balance parameters in the LEVEL menu.
K
katiefrederickAug 30, 2025
How to fix no sound from front speakers on Sony HT-DDW840 Stereo Receiver?
- S
  Scott DiazAug 30, 2025
  If there is no sound from one of the front speakers connected to your Sony Stereo Receiver, connect a pair of headphones to the PHONES jack to verify if sound is output. If both channels work through the headphones, the front speaker may not be correctly connected to the receiver. Check the connection of the front speaker that isn't producing sound.
J
Jennifer JonesSep 1, 2025
How to improve poor FM reception on Sony Stereo Receiver?
- S
  Sydney MillerSep 1, 2025
  To improve poor FM reception on your Sony Stereo Receiver, use a 75-ohm coaxial cable (not supplied) to connect the receiver to an outdoor FM antenna. If connecting to an outdoor antenna, ground it against lightning, but do not connect the ground wire to a gas pipe to prevent a gas explosion.
T
Terry WatkinsSep 4, 2025
What to do if Dolby Digital or DTS multi channel sound is not reproduced on Sony Stereo Receiver?
- J
  Julie LoweSep 4, 2025
  If Dolby Digital or DTS multi-channel sound is not being reproduced on your Sony Stereo Receiver, first verify that the DVD or other media being played is recorded in Dolby Digital or DTS format. When connecting a DVD player (or similar device) to the digital input jacks of the receiver, check the audio settings (specifically the audio output settings) of the connected component.
N
Nicole AndersonSep 6, 2025
Why is my Sony HT-DDW840 Stereo Receiver remote not functioning?
- M
  Michael ShepardSep 6, 2025
  If the remote for your Sony Stereo Receiver is not functioning, check that the mode of the remote corresponds to that of the receiver.
J
Jessica ProctorSep 8, 2025
How to get surround effect on Sony HT-DDW840?
- M
  Meagan SanchezSep 8, 2025
  To enable the surround effect on your Sony Stereo Receiver, make sure the sound field function is turned on by pressing the MODE button.

Summary

Operating Instructions

Owners Record

Section for recording model and serial numbers for future reference.

Hooking Up the Components

Required Cords

Lists and illustrates necessary connection cables.

Antenna Hookups

Instructions for connecting AM and FM antennas.

Audio Component Hookups

Guide for connecting audio sources like CD players and tape decks.

Video Component Hookups

Instructions for connecting video sources like DVD players and VCRs.

Digital Component Hookups

Guide for connecting digital audio/video sources.

Multi Channel Input Hookups

How to connect multi-channel audio sources.

Other Hookups

Covers miscellaneous connections and power setup.

Hooking Up and Setting Up the Speaker System

Speaker System Hookups

Steps for connecting speakers to the receiver.

Performing Initial Setup Operations

Steps for setting up speakers and receiver parameters after connection.

Multi Channel Surround Setup

Guide to positioning speakers for optimal surround sound.

Basic Operations

Selecting the Component

How to choose the active input source.

Changing the Display

Explains how to cycle through display information.

Enjoying Surround Sound

Automatically Decoding the Input Audio Signal

How the receiver auto-detects and decodes audio signals.

Selecting a Sound Field

How to choose preset sound effects.

About DCS (Digital Cinema Sound)

Explanation of DCS technology and its use.

Enjoying Movies with Cinema Studio EX

How to enjoy movies using Cinema Studio EX mode.

Understanding Multi Channel Surround Displays

Customizing Sound Fields

To Get the Most from Multi Channel Surround Sound

Advice for maximizing surround sound experience.

Adjusting the Surround Parameter

How to adjust surround sound parameters.

Adjusting the Level Parameters

How to adjust speaker volume and balance levels.

Adjusting the Bass and Treble

How to adjust bass and treble tone for front speakers.

Resetting Customized Sound Fields to the Factory Settings

How to reset customized sound fields.

Receiving Broadcasts

Storing FM Stations Automatically (AUTOBETICAL)

How to automatically store FM stations alphabetically.

Direct Tuning

How to tune to stations by entering frequency directly.

Automatic Tuning

How to scan for available radio stations.

Preset Tuning

How to store tuned stations for quick access.

Using the Radio Data System (RDS)

Displaying RDS Information

How to view RDS information like station name and text.

Scanning Preset Stations by Program Type

How to tune stations based on program type.

Description of Program Types

List and descriptions of program type categories for RDS scanning.

Other Operations

Naming Preset Stations and Program Sources

How to assign names to stations and sources.

Recording

General information about recording audio and video.

Recording on an Audio Tape or MiniDisc

How to record audio onto tape or MiniDisc.

Recording on a Video Tape

How to record video tapes, including adding audio.

Using the Sleep Timer

How to set the receiver to turn off automatically.

Adjustments Using the SET UP Button

How to make various system adjustments via the SET UP button.

Selecting the Command Mode of the Remote

How to select the remote's operating mode (AV1/AV2).

2 ch Decode Mode (PRO LOGIC)

How to select decoding modes for 2-channel sources.

Operations Using the Remote RM-PP411

Before You Use Your Remote

Initial setup and battery insertion for the remote.

Inserting Batteries into the Remote

How to insert batteries into the remote.

Remote Button Description

Detailed description of the RM-PP411 remote control buttons.

Programming the Remote

The Numeric Codes Corresponding to the Component and the Maker of the Component

Tables of codes for programming the remote.

Operations Using the Remote RM-U306

Before You Use Your Remote

Initial setup and battery insertion for the RM-U306 remote.

Inserting Batteries into the Remote

How to insert batteries into the remote.

Remote Button Description

Detailed description of the RM-U306 remote control buttons.

Changing the Factory Setting of a Function Button

To Reset a Button to Its Factory Setting

How to reset a single button's function.

To Reset All the Function Buttons to Their Factory Setting

How to reset all remote functions.

Additional Information

Precautions

Important safety and handling precautions.

Troubleshooting

Guide to resolving common operational problems.

The FM Reception Is Poor

Tips for improving FM signal reception.

Radio Stations Cannot Be Tuned In

Troubleshooting steps for tuning issues.

RDS Does Not Work

Troubleshooting RDS functionality.

The RDS Information That You Want Does Not Appear

What to do if RDS data is missing.

There Is No Picture or an Unclear Picture Appears on the TV Screen or Monitor

Troubleshooting video display issues.

The Remote Does Not Function

Troubleshooting remote control issues.

Specifications

Audio Power Specifications

Technical details on audio output power.

Amplifier Section

Technical details on the amplifier.

Inputs (Digital)

Technical details of digital inputs.

Outputs

Technical details of outputs.

FM Tuner Section

Technical details of the FM tuner.

General

General specifications like power requirements and dimensions.

Speaker Section

Technical specifications for the speaker system.

Tables of Settings Using SURR, LEVEL, SET UP, BASS and TREBLE Buttons

Adjustable Parameters for Each Sound Field

Lists parameters adjustable per sound field.

Summary

Operating Instructions

Owners Record

Section for recording model and serial numbers for future reference.

Hooking Up the Components

Required Cords

Lists and illustrates necessary connection cables.

Antenna Hookups

Instructions for connecting AM and FM antennas.

Audio Component Hookups

Guide for connecting audio sources like CD players and tape decks.

Video Component Hookups

Instructions for connecting video sources like DVD players and VCRs.

Digital Component Hookups

Guide for connecting digital audio/video sources.

Multi Channel Input Hookups

How to connect multi-channel audio sources.

Other Hookups

Covers miscellaneous connections and power setup.

Hooking Up and Setting Up the Speaker System

Speaker System Hookups

Steps for connecting speakers to the receiver.

Performing Initial Setup Operations

Steps for setting up speakers and receiver parameters after connection.

Multi Channel Surround Setup

Guide to positioning speakers for optimal surround sound.

Basic Operations

Selecting the Component

How to choose the active input source.

Changing the Display

Explains how to cycle through display information.

Enjoying Surround Sound

Automatically Decoding the Input Audio Signal

How the receiver auto-detects and decodes audio signals.

Selecting a Sound Field

How to choose preset sound effects.

About DCS (Digital Cinema Sound)

Explanation of DCS technology and its use.

Enjoying Movies with Cinema Studio EX

How to enjoy movies using Cinema Studio EX mode.

Understanding Multi Channel Surround Displays

Customizing Sound Fields

To Get the Most from Multi Channel Surround Sound

Advice for maximizing surround sound experience.

Adjusting the Surround Parameter

How to adjust surround sound parameters.

Adjusting the Level Parameters

How to adjust speaker volume and balance levels.

Adjusting the Bass and Treble

How to adjust bass and treble tone for front speakers.

Resetting Customized Sound Fields to the Factory Settings

How to reset customized sound fields.

Receiving Broadcasts

Storing FM Stations Automatically (AUTOBETICAL)

How to automatically store FM stations alphabetically.

Direct Tuning

How to tune to stations by entering frequency directly.

Automatic Tuning

How to scan for available radio stations.

Preset Tuning

How to store tuned stations for quick access.

Using the Radio Data System (RDS)

Displaying RDS Information

How to view RDS information like station name and text.

Scanning Preset Stations by Program Type

How to tune stations based on program type.

Description of Program Types

List and descriptions of program type categories for RDS scanning.

Other Operations

Naming Preset Stations and Program Sources

How to assign names to stations and sources.

Recording

General information about recording audio and video.

Recording on an Audio Tape or MiniDisc

How to record audio onto tape or MiniDisc.

Recording on a Video Tape

How to record video tapes, including adding audio.

Using the Sleep Timer

How to set the receiver to turn off automatically.

Adjustments Using the SET UP Button

How to make various system adjustments via the SET UP button.

Selecting the Command Mode of the Remote

How to select the remote's operating mode (AV1/AV2).

2 ch Decode Mode (PRO LOGIC)

How to select decoding modes for 2-channel sources.

Operations Using the Remote RM-PP411

Before You Use Your Remote

Initial setup and battery insertion for the remote.

Inserting Batteries into the Remote

How to insert batteries into the remote.

Remote Button Description

Detailed description of the RM-PP411 remote control buttons.

Programming the Remote

The Numeric Codes Corresponding to the Component and the Maker of the Component

Tables of codes for programming the remote.

Operations Using the Remote RM-U306

Before You Use Your Remote

Initial setup and battery insertion for the RM-U306 remote.

Inserting Batteries into the Remote

How to insert batteries into the remote.

Remote Button Description

Detailed description of the RM-U306 remote control buttons.

Changing the Factory Setting of a Function Button

To Reset a Button to Its Factory Setting

How to reset a single button's function.

To Reset All the Function Buttons to Their Factory Setting

How to reset all remote functions.

Additional Information

Precautions

Important safety and handling precautions.

Troubleshooting

Guide to resolving common operational problems.

The FM Reception Is Poor

Tips for improving FM signal reception.

Radio Stations Cannot Be Tuned In

Troubleshooting steps for tuning issues.

RDS Does Not Work

Troubleshooting RDS functionality.

The RDS Information That You Want Does Not Appear

What to do if RDS data is missing.

There Is No Picture or an Unclear Picture Appears on the TV Screen or Monitor

Troubleshooting video display issues.

The Remote Does Not Function

Troubleshooting remote control issues.

Specifications

Audio Power Specifications

Technical details on audio output power.

Amplifier Section

Technical details on the amplifier.

Inputs (Digital)

Technical details of digital inputs.

Outputs

Technical details of outputs.

FM Tuner Section

Technical details of the FM tuner.

General

General specifications like power requirements and dimensions.

Speaker Section

Technical specifications for the speaker system.

Tables of Settings Using SURR, LEVEL, SET UP, BASS and TREBLE Buttons

Adjustable Parameters for Each Sound Field

Lists parameters adjustable per sound field.

Sony HT-DDW840 Specifications

General

Brand	Sony
Model	HT-DDW840
Category	Stereo Receiver
Language	English

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Table of Contents

Questions and Answers

Summary

Operating Instructions

Owners Record

Hooking Up the Components

Required Cords

Antenna Hookups

Audio Component Hookups

Video Component Hookups

Digital Component Hookups

Multi Channel Input Hookups

Other Hookups

Hooking Up and Setting Up the Speaker System

Speaker System Hookups

Performing Initial Setup Operations

Multi Channel Surround Setup

Basic Operations

Selecting the Component

Changing the Display

Enjoying Surround Sound

Automatically Decoding the Input Audio Signal

Selecting a Sound Field

About DCS (Digital Cinema Sound)

Enjoying Movies with Cinema Studio EX

Understanding Multi Channel Surround Displays

Customizing Sound Fields

To Get the Most from Multi Channel Surround Sound

Adjusting the Surround Parameter

Adjusting the Level Parameters

Adjusting the Bass and Treble

Resetting Customized Sound Fields to the Factory Settings

Receiving Broadcasts

Storing FM Stations Automatically (AUTOBETICAL)

Direct Tuning

Automatic Tuning

Preset Tuning

Using the Radio Data System (RDS)

Displaying RDS Information

Scanning Preset Stations by Program Type

Description of Program Types

Other Operations

Naming Preset Stations and Program Sources

Recording

Recording on an Audio Tape or MiniDisc

Recording on a Video Tape

Using the Sleep Timer

Adjustments Using the SET UP Button

Selecting the Command Mode of the Remote

2 ch Decode Mode (PRO LOGIC)

Operations Using the Remote RM-PP411

Before You Use Your Remote

Inserting Batteries into the Remote

Remote Button Description

Programming the Remote

The Numeric Codes Corresponding to the Component and the Maker of the Component

Operations Using the Remote RM-U306

Before You Use Your Remote

Inserting Batteries into the Remote

Remote Button Description

Changing the Factory Setting of a Function Button

To Reset a Button to Its Factory Setting

To Reset All the Function Buttons to Their Factory Setting

Additional Information

Precautions

Troubleshooting

The FM Reception Is Poor

Radio Stations Cannot Be Tuned In

RDS Does Not Work

The RDS Information That You Want Does Not Appear

There Is No Picture or an Unclear Picture Appears on the TV Screen or Monitor

The Remote Does Not Function

Specifications

Audio Power Specifications

Amplifier Section

Inputs (Digital)

Outputs

FM Tuner Section

General