Yes, im sure that one has sequences... i pressed select button on sequencer side from front panel and there was a pretty long list.
External midi keyboard was my first idea yesterday. I connected ASR10 midi out with EMAX midi in and EMAX recived midi correctly but there was no sound.
Ok, Ive got my old friend in parts. I think its good moment to cleanup whole machine. I used isopropyl alcohol and tooth brush on pins and pins connectors... im little scared to unplug the flat connector of ribon cable next to E-Chip because im not sure if its possibe to take out.. What can i do more ? I used compressed air to whole field of the pcb's but its still kind of old dust on it... and a lot on the back sides (without chips) of PCB's. Im not sure how can i clean them up. If any one got proven methods to share how to clean up elements of unit, I'll be grateful (front panel, keys, pcbs).
If i want to check pcb's with oscilloscope do i need to take to engineer whole unit or boards only?
Im mad at myself i never lick electonics knowledge in my life, i opended a lot of gear and pc's and macs... but never had soldering iron in my hand :( i feel like blind right now. From today its over.
Thank you again, i really appreciate your help.