To Next PageTo Next PageHow to fix an Onkyo Receiver that doesn’t switch on?
If your Onkyo Receiver doesn't switch on, first check the connection of the power cord to ensure it is properly connected. If the power cord is connected correctly, there may be external noise interfering with the receiver's circuits; try disconnecting the power cord and then reconnecting it.
What to do if there is no sound reproduced on my Onkyo HT-R500?
If no sound is being reproduced by your Onkyo Receiver, first ensure that the muting function is deactivated. Check all connections to the AV receiver to make sure they are properly connected. Also, verify that the input selector is set to the correct input source. If headphones are connected, decrease the volume and then disconnect them. Finally, ensure that the input signal format is not set to “PCM”; if it is, change it to “Auto”.
What to do if my Onkyo HT-R500 shuts off immediately after powering on?
If the power shuts off immediately after powering on your Onkyo Receiver, the amplifier protection circuitry has been activated. Contact your Onkyo Service Center.
Why don't the buttons on my Onkyo Receiver and remote operate?
If the buttons on your Onkyo Receiver's remote controller and the AV receiver itself are not operating, disconnect the power cord and then reconnect it. Power supply fluctuations or static electricity may interrupt correct operation.
Why do the buttons on my Onkyo AV receiver operate, but the remote doesn't?
If the buttons on your Onkyo AV receiver operate, but the buttons on the remote controller do not, ensure you press the appropriate mode control button. Check if batteries are inserted in the remote controller, and if so, replace them with new ones. Point the remote controller at the remote sensor of the AV receiver and make sure you are within 16 feet (5 m) of the AV receiver.
Why is there no sound or very low volume from my Onkyo HT-R500 Receiver's subwoofer?
If you are experiencing no sound or very low volume from the subwoofer on your Onkyo receiver, check the subwoofer mode setting. It may be set to “Off” or an improper setting.
Why is the sound of the playback source not heard on my Onkyo HT-R500 Receiver?
If you are not hearing the sound of the playback source on your Onkyo Receiver, select the appropriate input source.
Why is there no sound from the center speaker on my Onkyo HT-R500 Receiver?
If you experience no sound or very little sound from the center speaker of your Onkyo Receiver, check the speaker connections to ensure they are properly connected. Note that no sound is reproduced from the center speaker when the listening mode is “Stereo” or “Orchestra.” Adjust the volume level of the center speaker. Also, check that the selected speaker configuration includes the center speaker.
What to do if no picture appears on the TV screen when using my Onkyo Receiver?
If no picture is appearing on your TV screen when using your Onkyo Receiver, ensure that the TV is set to the AV receiver’s input. Also, check that the video cable is securely connected between the AV receiver and the TV. If you are only using an S video connection, make sure to also establish a video connection and verify both the TV's video input and the AV receiver's output signal.
How to reduce hum or low-frequency noise on my Onkyo HT-R500 Receiver?
If you are getting a hum or low-frequency noise from your Onkyo receiver, adjust the placement of the audio connection cables on the rear panel to reduce hum.
Amplifier Section| continuous average power output (FTC) | 100 watts per channel at 8 ohms |
|---|---|
| dynamic power output at 3 ohms | 230 watts × 2 |
| dynamic power output at 4 ohms | 170 watts × 2 |
| dynamic power output at 8 ohms | 115 watts × 2 |
| total harmonic distortion | 0.08% at rated power |
| damping factor | 60 at 8 ohms |
Input and Output Impedance| digital input (optical 1, 2) | 0.5 Vp-p, 75 ohms |
|---|---|
| digital input (coaxial) | 0.5 Vp-p, 75 ohms |
| line (CD, VIDEO 1, 2, 3, TAPE) | 200 mV, 50 kohms |
| multichannel input (DVD FRONT L/C/R, SURR L/R) | 200 mV, 50 kohms |
| subwoofer input | 36 mV, 50 kohms |
| rec out (TAPE, VIDEO 1) | 200 mV, 470 ohms |
| pre out (subwoofer) | 1 V, 470 ohms |
Tuner Section| FM tuning range | 87.5-108.0 MHz |
|---|---|
| FM usable sensitivity (mono) | 11.2 dBf, 1.0 µV (75 ohms, IHF) |
| FM usable sensitivity (stereo) | 17.2 dBf, 2.0 µV (75 ohms, IHF) |
| FM signal-to-noise ratio (mono) | 76 dB, IHF |
| FM signal-to-noise ratio (stereo) | 70 dB, IHF |
| AM tuning range | 530-1, 710 kHz |
| AM usable sensitivity | 30 µV |
| AM signal-to-noise ratio | 40 dB |
General| power supply | AC 120 V, 60 Hz |
|---|---|
| power consumption | 5.5 A |
| dimensions (W × H × D) | 17-1/8” × 5-7/8” × 14-13/16” |
| dimensions in mm (W × H × D) | 435 × 150 × 376 mm |
| weight | 21.4 lbs. |
| weight in kg | 9.7 kg |
Critical components identified by mark require careful replacement to prevent fire and shock.
Guidance on replacing fuses with the correct type to maintain fire hazard protection.
Procedure to reset the microprocessor and restore factory settings for the unit.
Essential safety check for U.S.A. models before returning the unit to the customer.
Visual representation of the unit's components and their physical layout.
Comprehensive list of all part numbers and descriptions for the unit's components.
Diagram illustrating input signals, DSP processing, and output signal paths.
Schematic overview of audio signal processing, power amplification, and control circuits.
Detailed circuit schematic for the display and control interface components.
Circuit diagram detailing the Digital Signal Processing (DSP) functions and components.
Further circuit details for the DSP section, including microprocessors and interfaces.
Circuit diagram illustrating video input, output, and processing components.
Circuit diagram for the first part of the power amplifier stage.
Circuit diagram for the second part of the power amplifier stage.
Circuit diagram for the third part of the power amplifier stage.
Circuit diagram for the fourth part of the power amplifier stage.
Circuit diagram detailing the power supply unit and its voltage regulation.
Circuit diagram for the speaker output terminals and protection circuits.
Overview of internal wiring connections between various PC boards and components.
Additional wiring connections illustrating the integration of different modules.
Soldering side layout of the NADIS-7403 Display circuit PC board.
Soldering side layout for Display and Headphone boards.
Soldering side layout of the NADG-7401 DSP circuit PC board.
Soldering side layout of the NADG-7401 DSP circuit PC board (continued).
Soldering side layout for Standby Switch and Front Video PC boards.
Soldering side layout of the NAAF-7417 Power amplifier PC board.
Soldering side layout of the NAAF-7417 Power amplifier PC board (continued).
Soldering side layout for Speaker Terminal and Regulator PC boards.
Soldering side layout for Primary, Secondary, and Terminal PC boards.
Component parts list for the NADG-7401 DSP circuit PC board.
Detailed parts list including transistors, diodes, capacitors, and resistors for various boards.
Component parts list for Power Amplifier Driver, Headphone, Video, Connector, and Regulator boards.
Component parts list for Secondary, Speaker Terminal, and Power Amplifier boards.
Component parts list for Primary, Thermal Detector, Terminal, and Video Terminal boards.
Diagram showing connections and I/O functions of the main microprocessor (UPD784225).
Diagram illustrating connections and I/O functions of the sub-microprocessor (UPD70232GC).
Detailed explanation of each terminal's function and I/O for the main microprocessor.
Detailed explanation of each terminal's function and I/O for the sub-microprocessor.
Procedure for adjusting idling current for front, center, and surround channels.
Testing the operation of speaker relays and DC detection circuit for protection.
Procedure to confirm current detection by testing speaker relay and protect indicator.
Testing the voltage sensor by applying signals and checking FM STEREO light.
Step-by-step guide for assembling and packing the unit for shipment.
