Question about Onkyo HTR500 Receiver

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My onkyo 805 shows the headphone engaged symbol in the display and they are not hooked up. All i did was push the setup button on the front of the unit when this problem showed up. I have tried the reset clear function with the vcr/dvd button and the power switch and this did not clear the problem. On the setup step 2 for the speaker setup does not sho up the steps go from 1 to three . Is their any thing I can do to clearthe headphone engaged symbol. YES I DID POWER DOWN AND DISCONNECT FROM POWER FOR SEVERAL HOURS.
Please help
James HEADPHONE ENGAGED message is always shown. My 2 year old pulled out the headphones from this unit, and now no audio will play through speakers.

Posted by on

  • KGfan Jan 04, 2009

    I opened up the unit to and discovered that the circuit board that the headphone jack is connected to has been cracked in half. I do appreciate the tip though. Fixing a circuit board may be beyond my skills.

  • Shahid Electronics
    Shahid Electronics May 11, 2010

    Unplug unit from Ac outlet and spray little amount of WD-40 contact cleaner in headphone socket then plug headphone in that socket for few times like 8-10 times. 
    This will clean headphone switch inside headphone socket.


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When your son pulled out the headphones he must have broke the auto pressure switch right inside of the headphone jack input (its most lickly just bent out of place making a contact that is telling the amp the headphones are still in! you can try to bend the contact back into place...but if it is broken it will need replaced (a cheap repair!)
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Posted on Jan 03, 2009

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Hi imaw4672

First, check inside the headphone socket for something inserted. A common find here in Australia is a mudwasp nest also. They love to built inside this sort of hole. If that isn't it, spray some contact cleaner lubricant spray into the socket. I use crc 2-26. Then insert a jack plug in and out a few times to see if you can clear the problem. The socket has switching inside it that tells the amp the headphones are plugged in. These contacts may be dirty of have dry solder joints. Check the soldering about the socket also, resolder anyway if you have an iron handy. If all this fails, you have a faulty socket. See how you go and get back to me for the next steps if you cant get it sorted. Socket replacement is probably on the cards.


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I need help also... I'm having the same problem straight out of the box. I guess no solutions have been found here yet? :(


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