I am a HAPPY new user of a PreenFM 2 since one week
. It's really a great little beast and I loved it from the first videos on the web. Since I am not an expert building electronics, I ordered a pre-assembled unit ... very professional done IMHO ... no complaints so far. OS is 2.03. I power my unit via USB (a simple converter plug from wall socket to USB socket and a standard USB cable, like for charging cellphones).
Now here is my issue with the screen. If I turn one of the encoders very fast - without using the "Instr" shortcut, the software seems to get a hick-up somehow and ...
either, the screen sweeps slowly from right to left or vice versa, the lines are somehow shifted ...
or, the two lines, which are supposed to show the parameters (line 2 and 4) are missing ...
During the screen issue, the rest of the unit seem to work propperly, including generating sound. A reboot is required to get to normal operation again.
So here is my question. What might be wrong? Maybe it's the powersupply? What is the minimum at volt/ampers required for an adequate power source?
Thanks for any advice in advance
EDIT: My impression is that the chance to get an "display error" is highest, if I change the frequency of an operator during generating a sound.