Question about Sony STR-DE685 Receiver

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Sony str-de685 no sound, says unlock in display

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

DickCanFixIt
  • 948 Answers

SOURCE: output

When you change the selector switch, do you hear the relays inside the unit? Is your muting button activated (found to the lower left of your volume knob)? Do you have speakers connected to A or B or both?

Posted on Dec 29, 2008

SOURCE: need unlock code for sony str-dg520 5.1

The HDMI inputs are pass through inputs only. The reciever cannot recieve any sound signals through the HDMI's. The reciever acts as a selector switch for the HDMI inputs only. Whatever input you have selected on the reciever is the one that is being sent through the output to your TV. The "unlock" display shows when there is no sound signal sent to the reciever. There is no code to unlock. This is the reciever's way of telling you that there is no sound being sent to it from that input. Since there is no sound being processed from the HDMI's, you need to hook up an additional audio cable from the device to the reciever (preferrably an optical cable). When the reciever recieves an audio signal, it will then "unlock". I know it is confusing. I had to look into this problem myself, so I'm happy to help. Higher end recievers will actually recieve and process sound signals from the HDMI's. When I bought this one I thought it was going to do the same. That's what I got for trying to save a couple bucks on the cheeper model! Although it is still a good reciever.

Posted on Feb 05, 2009

  • 71 Answers

SOURCE: sony str-de525 system "protector" problem

You've blown it. It recognizes a potentally harmful situation and goes into protect mode.

Posted on Mar 15, 2009

dunnbiker
  • 8546 Answers

SOURCE: how to hard reset a sony str-DE898

I couldn't find anything about a Lock Code in the manual but here's the general setting-reset procedure:

Turn OFF the receiver
Hold down the I/0 for 5 seconds - "PUSH ENTER" appears on the display
Press ENTER

Posted on May 17, 2009

dunnbiker
  • 8546 Answers

SOURCE: Sony STR-DE685, home stereo, center speaker cuts

It all depends on what's wrong it and if it's worth the price to fix it to YOU, doesn't it? If it's really broken only a tech can look at it and tell you the cost to fix it.


Have you eliminated the individual speakers and cables first? Or looked in the manual?

Posted on Mar 19, 2011

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1 Answer

Humming sound from woofer


If there is humming , disconnect the powered Sub input to the receiver

If humming stops, check the cable connector and replace

only if necessary.

Oct 14, 2012 | Sony STR-DE685 Receiver

1 Answer

Str-685 has poor fm reception. have tried 3 different antennas.


If you are sure with the antennae then the fault is with the RF section within, It can be related to a faulty RF section, tuner or IF. You need to take a signal test to confirm.

Nov 01, 2011 | Sony STR-DE685 Receiver

1 Answer

My Sony STR-DE685 Receiver out of the blue now has loud hum when using the tuner only. All other inputs work great without any issues. Seems like a filter burned out. If that is the case, does...


In receivers, there are different power supplies or power supply outputs for the receiver and amplifier sections so you can have separate failures with one area not affecting the other. From your description, I think the (probably lower voltage) section for the receiver has either lost a cheap filter capacitor or a regulator IC. Neither of these are expensive parts but I can't know what labor costs in your area might be. An honest tech shouldn't ask more than ~$100 US for that kind of repair.

Apr 16, 2011 | Sony STR-DE685 Receiver

1 Answer

Sony STR-DE685, home stereo, center speaker cuts out, as does left surround. tried everything. Worth fixing? or shitcan it?


It all depends on what's wrong it and if it's worth the price to fix it to YOU, doesn't it? If it's really broken only a tech can look at it and tell you the cost to fix it.


Have you eliminated the individual speakers and cables first? Or looked in the manual?

Mar 19, 2011 | Sony STR-DE685 Receiver

1 Answer

Heard a pop and receiver now displays "PROTECT." Is that a sign of death for this unit?


a lot ahve relays not fuses check speaker leads are not shorted,at the back make sure the spring clips (speaker wire holders) check the springs under the clip hav't shifted,check speakers(unhook all speakers,then mute

Dec 02, 2009 | Sony STR-DE685 Receiver

1 Answer

5.1 Surround sound not working


Maybe the surround processor is having a bad day... My kenwood would do similar and a reset was necessary to correct. Have you tried resetting the system? On my Sony STR DE 597 this is accomplished by powering off. Then while holding the 2 channel button down (front face plate) power on. A reset message is displayed. Your model may be similar but check your manual or download the PDF of the manual from Sony's support website. Hope this helps

Sep 05, 2009 | Sony STR-DE685 Receiver

1 Answer

The sound goes off and says "unprotected"


check speaker wire connections on the back of receiver
bare wires should never touch each other or the metal chassis
if all connections and speakers seem ok the problem is internal witch can go from blown power supply to shorted output devices and everything in between , and as always look for repair shop in your area, do not attempt to do it yourself, firehazard and electric shock are the things we all want to avoid ;)

Sep 02, 2009 | Sony STR-DE685 Receiver

1 Answer

Sound only some out of 2 speakers at a time. I need all 4.


Here you go buddy:
http://www.docs.sony.com/release/STRDE685.pdf

May 19, 2009 | Sony STR-DE685 Receiver

1 Answer

Output


When you change the selector switch, do you hear the relays inside the unit? Is your muting button activated (found to the lower left of your volume knob)? Do you have speakers connected to A or B or both?

Dec 23, 2008 | Sony STR-DE685 Receiver

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