Remote's will not work with my Sony STR DE-485

1. Check your receiver's input:

If you're having trouble getting your Sony STR-DN850 to play nice with your receiver, the first thing you should do is check the receiver's input.

Make sure that the receiver is set to the correct input for the Sony STR-DN850. If you're not sure, consult your receiver's manual.

2. Check your Sony STR-DN850's output:

Next, you'll want to check the Sony STR-DN850's output. There are a few things you can check here. First, make sure that the Sony STR-DN850 is set to output audio to your receiver. You can do this by going into the Sony STR-DN850's menu and checking the "Audio Out" setting. Second, make sure that the Sony STR-DN850 is outputting audio in the correct format.

If you're not sure, consult your Sony STR-DN850's manual.

3. Try a different receiver:

If you're still having trouble, you may want to try a different receiver. Sometimes, different receivers can play nicer with the Sony STR-DN850 than others. If you have a friend or family member with a receiver, see if you can borrow it for a few days to see if it makes a difference.

4. Check your receiver's remote:

Finally, if you're still having trouble, you may want to check your receiver's remote. Sometimes, the remote can be the culprit when it comes to receiver/Sony STR-DN850 compatibility issues.

Make sure that the remote is set to the correct input for the Sony STR-DN850 and that all the buttons are functioning properly. If you're still having trouble, you may need to consult your receiver's manual.

I HAD VERY SIMILAR PROBLEMS WITH PIONEER VSX 523 UNTIL GOT MEDIA BOX FOR TV SO ALL INPUT/OUTPUT ON AMP WERE HDMI AND NOW SOUNDS AND WORKS BRILLIANTLY

circuit failure

Nope! Remotes can be had on eBay.

Contact a SONY service center. It is more likely that the hand held remote controller is defective though.

1-683-763-11 is the p/n for the headphone board. Should be easy to replace. Just unplug the old one, take take the screws out, and put the new one in.

It sounds like the receiver is either failing or going into a thermal protection mode.

There should be NO reason why the input source (digital versus analog) should make a difference unless you play the digital sources obscenely louder than the analog ones.

If you suspect heat, you should be able to feel it.

Can you verify that the digital sources ONLY do this?

hi i have a protect error problem and the power is only pluged in

Could need a new ir sensor or repair solder connections on the display (ir) board. You can check that the remote is putting out a signal by viewing it with a camcorder, turn the camera on look through the viewfinder and point the remote at it push a button. If it is working you will see a flashing light on the remote.

Blinking doesnt always mean that the IR transmitter is working in the remote.
Check a couple-few of the online remote dealers you may be able to get one cheap.