Marantz Stereo 70s: H/P in/out issue
Hello,
I use my Marantz Stereo 70s on speakers only. From time to time, it seems that the front headphone jack thinks it detects headphones being plugged in: the receiver displays the message H/P in, usually followed by H/P out a couple seconds later (but not always). That cuts the sounds to the speakers, and sometimes the message H/P out doesn't come at all and I have to restart the receiver to get sound again.
I've used a compressed air spray to try cleaning the headphone jack input, but the issue always comes back. There unfortunately doesn't seem to be an option in the setup to disable the headphone jack, which would be a perfect solution.
Any advice?
Thank you.