Optical input - Onkyo TX-DS484 Receiver

1. Ensure that the optical cable is properly connected to both the PC sound card and the receiver.
2. Check that the PC sound card is outputting sound through the optical cable. You can do this by going into the sound settings on your computer and selecting the optical output as the default audio device.
3. Try using a different optical cable to rule out a faulty cable as the issue.
4. Check the receiver's settings to make sure that the correct input is selected for the optical input.
5. If none of the above steps work, it's possible that the optical input on the receiver has malfunctioned and may require repairs or replacement.

If you're still having trouble with the optical input, it may be best to consult the user manual or contact Yamaha customer support for further assistance.

Your receiver has 2 optical inputs. If you plugged in the cable to Input 1, you can select the "CD-R" Input on the receiver. Then use the "Signal Select" button to select Optical 1 (O1).


You can also use the "Input Select" buttons on the remote until the receiver says "Digital". Then use the "Signal Select" button to select Analog (A), Coaxial 1 (C1), Optical 1 (O1), or Optical 2 (O2).

The only digital audio input for this TV will be via the HDMI input. Of course, even with HDMI in, you're only going to get a simple stereo output from the TV. You can use the analog L & R audio inputs for a very similar sound from the TV speakers.

The digital multi-channel audio (Dolby Digital, THX, 5.1, 7.1, etc) encoded in the program should be connected to a suitable multi-channel amplifier with either a TOSLINK (optical), RF (coaxial) or HDMI cable for theatre-like sound. This can be done by (a) cabling from the source (DVD, BluRay Disk, Set Top TV Tuner, etc.) directly to a multi-channel amp and speakers, or (b) from the HDMI output of these devices (DVD, BluRay Disk, Set Top TV Tuner, etc.) into one or both of the TV's HDMI inputs. This will provide only stereo sound output from the TV speakers. You should connect the TV's TOSLINK optical "Digital Output" jack with an optical cable to the amplifier's TOSLINK optical input jack to obtain theatre sound.

To listen to the program shown, you would select the amplifier input assciated with the optical, RF or HDMI input that is connected to the source (DVD, BluRay Disk, Set Top TV Tuner, etc.) if connected directly. If the TV HDMI input(s) are used, they are output to the TV optical output and should be connected to the amplifier optical input. The amp input associated with the optical input should be selected to hear the program with theatre-like sound.

Have you tried the another optical cable? They don't tolerate dirty connections or small-radius bends in their routing. THAT (and the expense of optical cables) is why I always choose coaxial connections when possible.

There are four digital connectors on the back of the unit: 2 optical and 2 coaxial. They are marked a s 1 2 3 4. 1 and 2 are optical, 3 and 4 - coaxial. Also you have front optical connector marked as F.
You can connect 5 digital sources to your receiver. For example, connect your DVD to input 2 (optical) by optical cable and connect your DSS to input 3 by coaxial cable. Assign DVD to digital 2 and DSS to digital 3 in input setup menu.

Hi, the Optical and Coaxial inputs are assignable to whichever input you need them on. Plug the Optical cables from your DVD and HD cable box into any of the OPTICAL INPUTS (1 and 2 is fine, but write down your connections on paper)

You will then need to go into the setup of the AVR on the screen and assign the OPTICAL connections to the correct inputs (Probably TV/CAB and DVD.

Use the SYSTEM SETUP button on the factory remote, and you should see the on-screen menu appear on your TV. Go to INPUT ASSIGNMENT and choose the input for the DVD and assign OPTICAL 1 or 2...

Reply here if you need more help.

You have to manually select digital input on the receiver.

Hi boltbob

Strange one... . The unit has'nt just lost its presets for optical input selection by chance. Most receivers have a volatile memory for user presets that can reset input settings to default when the unit has been unplugged for a period of time. This may mean that your amp is not looking at the optical inputs for that source. If it has correctly selected the optical inputs, then something common to all optical inputs has failed, maybe a a buffer stage between optics, D/A or Source switching stages.

Try disconnecting the unit from the wall socket for 10 mins to do a hard reset and see if that has any resolve to the issue.

Other than that, its out with the multi meter anbd do some DC checks about the optical , buffer and d/a stages. Try the reset and let me know how you go.


regards
robotek

I am getting no sound via my optical cable input. The back of the AMP says that the optical is TV/SAT but i can't change the input to digital it will only go to analog. DVD player is set to Bitstream all dvd options set to DTS, but still no sound going through. Any help would be apprecaited

Had it ever worked, or are you setting it up for the first time?
Have you ASSIGNED the digital input in the menu?