Introduction
Upon purchasing an Onkyo product, you will receive a complete manual with advanced functions, settings, and other information.
Image: Front view of the Onkyo TX-SR309 AV Receiver, showing the power button, input selectors, volume knob, display, headphone jack, and various input/output ports.
Label: Made for iPod iPhone
Precautions
ATTENTION: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THE SYSTEM TO RAIN OR HUMIDITY.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER (OR REAR PANEL). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO A QUALIFIED SERVICE CENTER.
Symbol: A lightning bolt symbol within an equilateral triangle alerts the user to the presence of uninsulated 'dangerous voltage' inside the unit that may be of sufficient magnitude to constitute an electric shock hazard.
Symbol: An exclamation mark symbol within an equilateral triangle alerts the user to the presence of important operating and maintenance instructions in this manual.
- 1. Recording of Copyright-Protected Programs: Unless for personal use, it is illegal to record copyright-protected programs without the owner's authorization.
- 2. AC Fuse: The fuse located inside the unit cannot be replaced by the user. If you cannot turn on the TX-SR309, contact an authorized Onkyo service center.
- 3. Care: The front panel, rear panel, and cabinet of the TX-SR309 should be cleaned periodically with a soft cloth. For stubborn stains, use a soft cloth dampened with a solution of water and a little mild detergent. Then, immediately dry the cleaned surface with a soft cloth. Do not use abrasive materials, thinner, alcohol, or other chemical solvents, as they may damage the finish or erase the panel text.
- 4. Power: CAUTION BEFORE CONNECTING THE TX-SR309 TO THE POWER OUTLET FOR THE FIRST TIME, READ THE FOLLOWING SECTION CAREFULLY. The power outlet voltage varies by country or region. Ensure that the voltage of the city where the TX-SR309 will be used is compatible (e.g., 230 V AC, 50 Hz or 120 V AC, 60 Hz) with the specification on its rear panel. The power cord is used to disconnect the unit from the power outlet. Ensure that the plug of this cord is always easily accessible. Pressing the ON/STANDBY button on the TX-SR309 to select Standby mode does not completely turn it off. If you intend to leave it unused for a prolonged period, disconnect its power cord from the power outlet.
- 5. Preventing Hearing Loss: Caution: Excessive sound pressure when using headphones can cause hearing loss.
- 6. Batteries and Exposure to Heat: Attention: Batteries should not be exposed to excessive heat or sunlight, fire, or similar situations.
- 7. Never Touch the TX-SR309 With Wet Hands: Never touch the TX-SR309 or its power cord when your hands are wet or damp. If water or other liquids enter the TX-SR309, take it for inspection at an authorized Onkyo service center.
- 8. Handling Notes:
- If you need to transport the TX-SR309, use its original packaging to pack it as you received it.
- Do not leave rubber or plastic objects on the TX-SR309 for a prolonged period, as they may leave marks on its cabinet.
- The top and rear panels of the TX-SR309 may become warm after prolonged use. This is normal.
- If you do not use the TX-SR309 for a long period, it may not function normally the next time it is turned on. Therefore, use it occasionally.
Supplied Accessories
Verify that the following items were supplied with the TX-SR309:
- FM indoor antenna
- AM indoor antenna
- Speaker cable identification labels
- Remote control (RC-799M) and two AA batteries
In catalogs and packaging, the letter at the end of the product name indicates its color. Specifications and functions are the same regardless of the product's color.
Battery Installation
Notes:
- If the remote is not functioning well, try replacing both batteries.
- Do not mix new and used batteries or batteries of different types.
- If the remote will be unused for a prolonged period, remove the batteries to prevent damage from leakage or corrosion.
- Immediately remove spent batteries from the remote control to prevent leakage and damage caused by corrosion.
Diagram: Close-up view of the remote control's battery compartment, indicating where two AA batteries should be inserted.
Using the Remote Control
To use the remote, point it towards the TX-SR309's sensor, as shown in the figure below.
Diagram: Illustration showing the AV receiver with a remote control pointing towards it, indicating an optimal operating angle of 30 degrees from the front and a maximum range of approximately 5 meters.
Features
Amplification
- 65 Watts per Channel, into 8 ohms (FTC)
- 100 Watts per Channel into 6 ohms (IEC)
- 120 Watts per Channel into 6 ohms (JEITA)
- Optimized Gain Volume Circuitry
- H.C.P.S. (High Current Power Supply) High-Power Transformer
Processing
- HDMI (Audio Return Channel, 3D, Deep Color, x.v.Color*¹, Lip Sync, DTS*²-HD Master Audio, DTS-HD High Resolution Audio, Dolby TrueHD*³, Dolby Digital Plus, DSD, and Multichannel PCM)
- Non-Scaling Configuration
- A-Form Listening Mode Memory
- Direct Mode
- Music Optimizer*⁴ Mode for Compressed Music Files
- 192 kHz/24-bit D/A Converters
- Powerful 32-bit DSP Processing
Connections
- 3 HDMI*⁵ inputs and 1 output
- Onkyo RIHD for System Control
- 3 Digital Inputs (2 Optical and 1 Coaxial)
- Component Video Switching (2 Inputs/1 Output)
- Front USB Input for Memory Devices and iPod®/iPhone®*⁶ Models
Miscellaneous
- Memory for 40 FM/AM stations
- Crossover adjustment (40/50/60/70/80/90/100/120/150/200 Hz)
- A/V Sync Control Function (up to 400 ms)
- Auto Standby Function
- On-Screen Display (OSD) via HDMI
*¹ "x.v.Color" is a trademark of Sony Corporation.
*² Manufactured under license and protected by patents. DTS is a registered trademark and the DTS logos, Symbol, DTS-HD, and DTS-HD Master Audio are registered trademarks of DTS, Inc. © DTS, Inc. All rights reserved.
*³ Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", and the double-D symbol are registered trademarks of Dolby Laboratories.
*⁴ Music Optimizer is a registered trademark of Onkyo Corporation.
*⁵ "HDMI", the HDMI logo and High Definition Multimedia Interface are trademarks of HDMI Licensing, LLC in the United States and other countries.
*⁶ iPod, iPhone, iPod classic, iPod nano, iPod shuffle, and iPod touch are trademarks of Apple, Inc. in the United States and other countries. "Made for iPod" and "Made for iPhone" mean that an electronic accessory has been designed to connect specifically to an iPod or iPhone, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this accessory or its compliance with regulatory and safety standards. Note that using this accessory with an iPod or iPhone may affect wireless performance.
Front and Rear Panels
Front Panel
Diagram: Illustration of the front panel with numbered callouts.
- ON/STANDBY button
- HDMI THRU indicator
- SPEAKERS A and B buttons
- Remote sensor
- LISTENING MODE buttons
- Display screen
- DIMMER button
- MEMORY button
- TUNING MODE button
- Display button
- SETUP button
- TUNING, PRESET, arrow buttons, and ENTER button
- RETURN button
- MASTER VOLUME control
- MUSIC OPTIMIZER button
- PHONES jack
- Tone +/- buttons
- Input selector buttons
- AUX INPUT AUDIO/VIDEO jacks
- USB Port
Page numbers in parentheses indicate where you can find more explanations for each item.
Display
Diagram: Illustration of the display panel with numbered callouts.
- Speaker systems A and B indicators
- Audio input indicators
- Listening modes and format indicators
- Tuning indicators
- RDS indicator (not available on this model)
- SLEEP indicator
- MUTING indicator
- Message area
Rear Panel
US, European, Australian, and Asian Models:
Diagram: Illustration of the rear panel for US, European, Australian, and Asian models with numbered callouts.
- DIGITAL IN COAXIAL and OPTICAL jacks
- COMPONENT VIDEO IN and OUT jacks
- HDMI IN and OUT jacks
- FM ANTENNA jack and AM ANTENNA terminal
- SUBWOOFER PRE OUT jack
- SPEAKER terminals (FRONT A, CENTER, SURROUND, FRONT B)
- Power cord (US, European, and Asian models)
- RI REMOTE CONTROL jack
- Composite video and analog audio jacks (BD/DVD IN, VCR/DVR IN and OUT, CBL/SAT IN, GAME IN, TV/CD IN)
- AC INLET (Taiwan model)
Read the "How to Connect the TX-SR309" section for connection information.
Brazilian Model:
Diagram: Illustration of the rear panel for the Brazilian model with numbered callouts.
Remote Control
How to Control the TX-SR309
To control the TX-SR309, press the RECEIVER button to select Receiver mode. You can also use the remote control to operate your Blu-ray/DVD player, CD player, and other equipment. For more details, read the "How to Program Remote Control Codes" section.
For detailed information, refer to the pages in parentheses.
Diagram: Illustration of the remote control with numbered callouts.
- RECEIVER button
- REMOTE MODE/INPUT SELECTOR buttons
- TONE +/- buttons
- SP A/B button
- Arrow-shaped buttons (▲, ▼, ◀, ▶) and ENTER button
- SETUP button
- LISTENING MODE buttons
- DIMMER button
- DISPLAY button
- MUTING button
- VOL +/- buttons
- RETURN button
- HOME button
- SLEEP button
How to Control the Tuner
To control the tuner, press the AM or FM button.
- Tuning buttons (▲/▼)
- D. TUN button
- DISPLAY button
- CH +/- buttons
- Numeric buttons
How to Connect the TX-SR309
How to Connect Speakers
How to Connect Speaker Cables: The figure below shows which speaker should be connected to each pair of terminals.
Diagram: Illustration showing speaker connections (Front B Left/Right, Front A Left/Right, Center, Surround Left/Right) to receiver terminals.
Speaker Terminals with Locking Type: Strip about 10 to 12 mm of the insulating cover from the wire ends and twist the bare wires firmly as shown in the figure.
Diagram: Detail of stripping wire and twisting.
Speaker Configuration
The table below shows the channels that should be used based on the number of speakers you have. Regardless of the number of speakers used, a subwoofer is recommended for solid, powerful bass. For the best possible result from your home theater system, you should manually adjust your speakers.
| Number of Channels | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Front Speakers | ✓ | ✓ | ✓ | ✓ |
| Center Speaker | ✓ | ✓ | ✓ | |
| Surround Speakers | ✓ | ✓ |
Placing Speaker Cable Identification Labels:
Speaker terminals are identified by a color code.
| Speaker | Color |
|---|---|
| Front Left | White |
| Front Right | Red |
| Center | Green |
| Surround Left | Blue |
| Surround Right | Gray |
The supplied speaker cable identification labels also have a color code, and you should place them on the positive (+) side of each cable, according to the table above. Once done, you just need to match the color of each label with the corresponding speaker terminal.
Precautions Regarding Speaker Connections:
Before connecting your speakers, read the section below.
- You can connect speakers with an impedance between 6 and 16 ohms. If the impedance of any of the speakers is lower than these values and you use high volume levels for a prolonged period, the internal protection circuit may activate.
- Disconnect the power cord from the power outlet before making any connections.
- Read the instruction manual supplied with the speakers.
- Ensure that the positive and negative wires of the speaker cables are connected correctly. Connect the positive (+) terminals only to the positive (+) terminals, and the negative (-) terminals only to the negative (-) terminals. If they are reversed, the acoustic image and bass sound will be impaired.
- Unnecessarily long or very thin speaker cables can affect sound quality and should be avoided.
- Be careful not to short the positive and negative cables, as this could damage the TX-SR309.
- Be careful that the metallic core of the cables does not come into contact with the rear panel of the TX-SR309, as this could damage it.
- Do not connect more than one speaker cable to a single terminal. This could damage the TX-SR309.
- Do not connect one speaker to multiple terminals.
How to Connect an Active Subwoofer
To find the best placement for the subwoofer, while playing a movie or music with good bass content, try placing it in various locations in the room and choose the one that provides the best results.
TIP: If your subwoofer is a passive model (without an internal amplifier), connect the SUBWOOFER PRE OUT output of the TX-SR309 to the input of an external amplifier.
Diagram: Illustration showing optimal placement for an active subwoofer in a room, suggesting 1/3 of the wall length or in a corner.
Regarding Audio and Video Connections
Connections with Audio and Video Equipment
Diagram: Shows HDMI connection (Video & Audio) and other cables (Video, Audio).
Before making any AV connections, read the instruction manuals provided with the equipment.
Do not connect the power cord to the power outlet before making all audio and video connections.
For good connections, push the plugs fully into the jacks (poor connections can cause noise or malfunction).
To prevent interference, keep audio and video cables away from power cords and speaker cables.
Diagram: Illustrates correct vs. incorrect insertion of audio/video cables (e.g., optical cable).
Audio and Video Cables and Jacks
| Signal | Cable | Jack | Description |
|---|---|---|---|
| Video & Audio | HDMI | HDMI | HDMI connections transmit digital video and audio signals. |
| Video | Component Video | Green, Blue, Red | Component video connections separate luminance (Y) and color difference (Pr, Pb) signals for better video quality. (Some TV manufacturers use slightly different names for their jacks.) |
| Composite Video | Yellow | Composite video is commonly used in TVs, VCRs, and other video equipment. | |
| Audio | Digital Optical | Optical | Digital optical connections allow playback of digital sources like PCM*, DTS, and Dolby Digital. Audio quality is the same as digital coaxial connections. |
| Digital Coaxial | Coaxial | Digital coaxial connections allow playback of digital sources like PCM*, DTS, and Dolby Digital. Audio quality is the same as digital optical connections. | |
| Analog Audio | RCA | White, Red | Analog audio connections transmit analog audio. |
* PCM sampling rates available: 32/44.1/48/88.2/96 kHz. 176.4/192 kHz rates are also compatible with HDMI connection.
Notes:
- The TX-SR309 is not compatible with SCART connectors.
- The TX-SR309's optical jacks have covers that open when an optical cable plug is inserted and close when it is disconnected. Push the plugs fully into the jacks.
Caution: To avoid damage to the jack covers, hold the optical cable plug straight when inserting and removing it.
How to Connect Devices Using HDMI Cables
Diagram: Shows connections for game console, satellite receiver, Blu-ray/DVD player to receiver's HDMI inputs, and receiver to TV via HDMI OUT.
Connect each device to the appropriate jack. Factory-set input designations are shown below. Designations may be changed.
| Jack | Devices | Designable |
|---|---|---|
| HDMI IN1 | Blu-ray/DVD player | ✓ |
| HDMI IN2 | Satellite receiver, set-top box, etc. | ✓ |
| HDMI IN3 | Game console | ✓ |
| HDMI OUT | TV, projector, etc. |
Also See:
- "Connection Tips and Video Signal Path".
- "Regarding the HDMI Interface".
- "Using a TV, Player, or Recorder Compatible with RIHD".
Audio Return Channel (ARC) Function
The Audio Return Channel (ARC) function allows a TV compatible with HDMI to send its audio signal to the TX-SR309's HDMI OUT.
To use the ARC function, you need to press the TV/CD button and set "HDMI Ctrl (RIHD)" to "On".
Tip:
- To hear audio received via HDMI IN through your TV's speakers:
- Set "HDMI Ctrl" to "On" if the TV is compatible with the RIHD function.
- Set "Audio TV Out" to "On" if the TV is not compatible with the RIHD function, or set "HDMI Ctrl(RIHD)" to "Off".
- Set your Blu-ray/DVD player's HDMI audio output to PCM.
- To hear TV through the TX-SR309, refer to the "How to Connect External Devices" section.
Notes:
- When listening to a device connected via HDMI through the TX-SR309, set that device so its video signal can be viewed on the TV (on the TV, select the input to which the TX-SR309's HDMI output is connected). If the TV is turned off or another input source is selected, the audio signal may not be present on the TX-SR309.
- When "Audio TV Out" is set to "On" to hear audio through the TV's speakers, adjusting the TX-SR309's volume may also cause this audio to be heard through the speakers connected to the TX-SR309. When "HDMI Ctrl (RIHD)" is set to "On" to hear audio through the speakers of a TV compatible with the RIHD function, adjusting the TX-SR309's volume may also cause this audio to be heard through the speakers connected to it, while the TV's speakers will stop producing sound. To mute the speakers connected to the TX-SR309, change your settings, the TV's settings, or reduce the TX-SR309's volume.
How to Turn the TX-SR309 On and Off
How to Turn On:
- On the TX-SR309's front panel, press the ON/STANDBY button.
- OR Press the RECEIVER button followed by the remote's button. The TX-SR309 will turn on and the display will light up.
How to Turn Off:
- Press the ON/STANDBY button on the front panel.
- OR Press the RECEIVER button followed by the remote's button. The TX-SR309 will enter Standby mode. To avoid a shock the next time you turn on the TX-SR309, always try to reduce the volume before turning it off.
Technical Specifications
Amplifier Section
- Output Power: All channels: 65 watts minimum continuous power per channel, into 8 ohms, 2 channels driven, from 20 Hz to 20 kHz, with a maximum total harmonic distortion of 0.7% (FTC). 90 watts minimum continuous power per channel, into 6 ohms, 2 channels driven, at 1 kHz, with a maximum total harmonic distortion of 0.9% (FTC).
- Dynamic Power*: 160 W (3 ohms, front channels), 125 W (4 ohms, front channels), 85 W (8 ohms, front channels). (*IEC60628-Maximum output power for a short period)
- THD (Total Harmonic Distortion + Noise): 0.08% (from 20 Hz to 20 kHz at half power)
- Damping Factor: 60 (front channels, at 1 kHz, 8 ohms)
- Input Sensitivity and Impedance (Unbalanced): 200 mV/47 kΩ (Line)
- Output Level and Impedance: 200 mV/2.2 kΩ (REC OUT)
- Maximum Output Level and Impedance: 2 V/2.2 kΩ (REC OUT)
- Frequency Response: 20 Hz to 50 kHz/+1 dB, -3 dB (without DSP)
- Tone Control Characteristics: ±10 dB, 50 Hz (BASS); ±10 dB, 20 kHz (TREBLE)
- Signal-to-Noise Ratio: 100 dB (Line, IHF-A)
- Speaker Impedance: 6 Ω to 16 Ω
Video Section
- Input Sensitivity/Output Level and Impedance: 1 V p-p/75 Ω (Component Y); 0.7 V p-p/75 Ω (Component Pb/Cb, Pr/Cr); 1 V p-p/75 Ω (Composite Video)
- Frequency Response in Component Video: 5 Hz to 100 MHz, +0dB, -3 dB
Tuner Section
- FM Tuning Range: 87.5 MHz to 107.9 MHz
- AM Tuning Range: 522/530 kHz to 1611/1710 kHz
- Memory Presets: 40
General
- Power Supply: 120 V AC, 60 Hz
- Power Consumption: 3.3 A
- Power Consumption in Standby: 0.2W
- Dimensions (W x H x D): 435 x 150 x 328 mm
- Weight: 7.5 kg
HDMI
- Inputs: IN 1, IN 2, IN 3
- Output: OUT
- Video Resolution: 1080p
- Audio Formats: Dolby TrueHD, DTS Master Audio, DVD-Audio, DSD
- Supported Features: 3D, Audio Return Channel, Deep Color, x.v.Color, LipSync, CEC (RIHD)
Video Inputs
- Component: IN1, IN2
- Composite Video: BD/DVD, VCR/DVR, CBL/SAT, GAME, AUX
Video Outputs
- Component: OUT
- Composite Video: MONITOR OUT, VCR/DVR OUT
Audio Inputs
- Digital: Optical: 2; Coaxial: 2
- Analog: BD/DVD, VCR/DVR, CBL/SAT, GAME, TV/CD, AUX
Audio Outputs
- Analog: VCR/DVR
- Pre-Out for Subwoofer: 1
Speaker Outputs
- SP-A (L, R, C, SL, SR) + SP-B (L, R)
Headphones
- 1 (6.3φ)
Other
- USB: 1 (front)
- RI: 1
Specifications and features are subject to change without prior notice.
