I have experienced a sudden failure of a new MKH 8060 with 3 different Lectrosonics Plug-on Tx. The Combo has been working flawlessly with this particular Mic for 2 weeks and with 2 older MKH 8060 for the last 4 years. Out of the sudden on an indoor shoot the new 8060 started to create high noise as if related to a malfunctioning P48 supply. It shows this behaviour with both UH400a and a HMa Plug-on Tx. Any other mics, including the 2 older MKH 8060 units work as ever with all Tx, and the faulty unit is behaving totally OK when on a cabled connection to a symmetrical Mic input providing +48V.
Any other parts, like cables or Rx issues can be ruled out as culprits, system has been A/B tested, including the XLR Adapters of the 8060
I will send the Mic back to Sennheiser as a warranty issue, but I don't know how to adress the malfunction. They Sennys will probably not have Lectrosonics transmitters at hand at their service departement ;-)
Any clues what might be going on inside the faulty mike that makes it fail?
Thanks for any input