Noticed the display dimming over time on my planet earth then the thing just died completely with no lights or sound.I suspect power supply issues but before I open it up I was wondering if this is going to be a component level fix or is there a power supply (unit) I should be looking for?
Could be dried out electrolytics. Sometimes in their infinite wisdom the PSU designers put capacitors by heatsinks or warm components, shortnening their life. So those would be the first to look at.
There’s quite a lot of these Emu boxes about with the main difference being the pre-installed ROM board. So if you aren’t happy about messing with the PSU (and you do need to be very careful) then you can for another Emu box. You can even put them into some of the emu samplers.