Those is the power supply I'm using at home for the DM10
I'm not sure if it's the original supplied by Alesis.
It works fine at home and has done for many years.
Can anyone confirm if its original?
If its not the original maybe changing the power supply could solve my issue.
I don't believe Alesis ever offered a Factory 230-240 power supply for the module in the US.
Factory US Model is 110 9VAC..1.5 AMP in the US..
Instrumental Parts still offers the power supplies listed under the Alesis Brand....mostly they were Numark ( NUMARK was the Parent Company.. at the start of the DM10..then acquired by InMusic).Numark gear had a lot of interchangeability for power supplies..
The original DM10 "Charcoal" Module came with 1.3Amp...about a year later the Silver Module came out and the power supply for it was now 1.5Amp.
There is never any mention why...so one presumes it was under-powered for it's features.
If the one you have worked at home had no issues I would check everything else.the Universal Power supply you show is 50HZ so it's a Pure Sine Wav.
I was mainly looking at how many amps were being supplied to it from the 230 stepdown after the 12 Volt.
Are there multiple pieces of gear connected to the inverter?..have you tried just the module alone connected?
I don't know if the inverter can be switched to 110..then get a 110 9VAC power supply and eliminate one piece in the power chain will guarantee any difference.
I don't know many doing multiple conversions on one piece of equipment (12 volt DC > Inverter> 230 Volt AC >..Stepdown> 110AC.) and it's affects using multiple pieces of gear..The only time I knew anyone using 12v to 230v was for using Marshall Stacks from UK that were original wiring....that was many years ago.. most full bands etc use generators..I have known a few to carry around portable 12 volt Jump Starter/Jump Boxes that have 110 inverters built in and outlets..USB ports etc.
You may have better success checking in local European Performing Musician Forums.
I am sure someone has used the original DM10 over the past 10 years or the same power/chain/supply setup in an outdoor venue etc..
Original DM10 Module CHARCOAL 1.3AMP
Power Adapter, 9VAC 1.3A, 110V (US) - TF48093201ULOriginal DM10 Module SILVER 1.5AMP
Power Adapter, 9VAC 1.5A, 110V (US) - TF57023201ULOriginal DM10 Module SILVER 1.5AMP
Power Adapter, 9VAC 1.5A, 240V (SAA/AU) - TF57023401SAA