Hi, just maybe try one more thing first before giving up.
Open the ML39, take an earbud, dip it in terpentine (terps) and clean the sticky old lub off the two transport rails/rods.
In fact do NOT re-lub, else if the unit is swiched off i.e. getting cold, it will cause issues yet again after some time.
As the ML uses a class A output stage it runs quite warm(ish) after being in stand-by drying out the lub after a certain period.
If switched off completely (at the rear) for some time, say over night, the lub gets too sticky, and after some time is now sticky enough to prevent proper function.
After cleaning, reassemble, go through the calibration procedure and see what gives.
If it still fails its more serious as alluded to earlier on.
Maybe you're lucky like myself having had the same problems with my ML390S. 😉
Open the ML39, take an earbud, dip it in terpentine (terps) and clean the sticky old lub off the two transport rails/rods.
In fact do NOT re-lub, else if the unit is swiched off i.e. getting cold, it will cause issues yet again after some time.
As the ML uses a class A output stage it runs quite warm(ish) after being in stand-by drying out the lub after a certain period.
If switched off completely (at the rear) for some time, say over night, the lub gets too sticky, and after some time is now sticky enough to prevent proper function.
After cleaning, reassemble, go through the calibration procedure and see what gives.
If it still fails its more serious as alluded to earlier on.
Maybe you're lucky like myself having had the same problems with my ML390S. 😉