Harman Kardon AVR 3000 no sound
I have a Harman Kardon AVR 3000 receiver, which i have had for about 12 years now. It has been off for the last 5 years and i turned it back on a couple of weeks ago. After which everything seemed to be fine, it produced sound and everything. (even though the maximum amount of sound coming out of the speakers seemed less then before).
But since yesterday it stopped producing sound. The display etc still works and reacts / remote also still works. If i plug in head phones they also dont work. I tried several inputs, but still no sound.
The strange thing is it does produce sound if i move the volume up or down, for about half a second and then it stops again. This is true for headphones and speakers.
I opened it up to dust it out and i did a processor reset both of which didn't change anything. Do you guys know anything else i could try ?