Hello,
since yesterday, when inserting my headphones into PH 3/4, even just inserting an adapter without any actual hp (I tried 3 different TRS adapters beside the one I always use) my ADI-2 pro keeps repeating the alert signal "Overload/ Short detected. PH 3/4 deactivated. Pull out PH plug 4/4 to reset output state".
Wondering if this is some hw issue or something else? I had just updated to the last firmware a few days ago. Tried gently cleaning the contacts with a dry Q-tip but nothing happens, also tweaked more or less every possible setting, low and high power, balanced hp, dual phones etc, nothing changes.
Any help is appreciated, my device will be under warranty just until the 16th of December.