Hello, This occurs when the contacts on the headphone jack are oxidized. Unplug the receiver from power, then soak a q-tip in rubbing alcohol, and insert into the headphone jack and spin the q-tip. Do this procedure several times to ensure the contacts are clean. Wait 5 minutes then plug the receiver back in and turn it on. Let me know if you have the same problem.
If you need further assistance let me know. Please do not forget to click the 5 STAR RATING, at the top of the page for my efforts. It is my livelihood and you can follow up at any time if needed.
This is a mechanical issue- the headphone jack has contacts that are no longer making connection to each other when the headphone plug is removed. This requires disassembly of the unit to get at the headphone jack and either manually bend the contacts together, more thoroughly clean the contacts, or to replace the jack itself. You would need to be comfortable working within electronic devices and with small tools in order to fix this yourself. If not, then a shop is going to charge around $150 parts and labor for this repair and can be located at the link below:
Do you need any further assistance with this?If not, could you please click the 5 STAR RATING, at the top of the page for my efforts? It is my livelihood and you can follow up at any time if needed.
Offhand I don't. You can try Googling your model number and "Service Manual" and see what you can find.