Changing the capacitors around the ST202 chip solved the problem. I do remember having this kind of issue before with a surface mount cap and a RS232 driver. (??)
Thanks

This vk204-25 (rs232) was running in the field for more thant one year. It recently start to react slangly. It was install (as many others here) as is with the original MATRIXORBITAL setings including the spash screen. Since a few days ago the start screen switch to all kind of characters with no ...