Drumu midi mode howto?

[Jvpiter8]

Hi guys. I recently bought a mild beaten up drumulator. So far was working ok but I decided to send it to the technician.
Strange thing here is that I can't make it enter into midi mode. It's a late model with factory midi.
Before sending it to the technician I remember hitting External Clock and then turning it on and all the lights were gone and responding to midi.
Now if I hit Extenal clock and do a reset it just wakes up showing EC 01 on the display and it goes up to 99. I remember setting the midi channel there.

Any help???

[Jvpiter8]

Thank God Im in a Drumulator forum otherwise I wouldn't get these kind of help...
By the way if anyone comes across this post, the procedure is to hit External Clock and then press Run/ Stop.

Thanks for nothing guys!
Appreciate the effort guys.