[sdiy] Experience with Encore's OBX MIDI kit?
rsdio at audiobanshee.com
rsdio at audiobanshee.com
Mon May 8 04:16:45 CEST 2017
Hi Tim,
Are the installation instructions for the OB-X MIDI kit online and publicly accessible? I have no experience with this kit, but a glance at the installation instructions might give a clue as to what might have gone wrong.
It's really good news that re-installing the original chips made everything come back. That means you didn't kill your circuits with static-discharge, a short, or anything extreme like that.
Brian
On May 7, 2017, at 6:47 PM, <tprivitera at nc.rr.com> wrote:
> Anyone have experience installing/troubleshooting Encore's OBX MIDI kit? I just installed one in my late '79 OBX and when I fired it up, nothing happens (no lights on any of the control panel, no functionality in control panel, no sound, absolutely nada - dead Obie).
>
> It's a pretty straightforward installation pulling the Z80, EPROMs and memory, then seating the processor on the new board, connecting the ribbon cable to the old Z80 socket and soldering just 2 wires from the new board to pins on a 4011. I'm 100% sure I seated everything correctly and soldered the wires to the correct pins. I didn't wire up the MIDI connectors or punch the holes in the chassis yet, as I wanted to test up to this point of the install before completing.
>
> I pulled the kit and re-installed all chips back in their original positions on the OBX's processor board and everything came back (less my patches).
>
> Any gotchas that someone with a similar experience can shed some light on?
>
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