The Don Classics NV73EQ, Assembly Manual

Page: 11 / 20

4. Make ribbon cable

Cut the 20way ribbon cable as shown in cm
(using scissors, cut straight and not off angle)
(Split the ribbon cable down the middle along half its length)

Black is pin 1 as shown.
Make sure black will connect to pin 1 of the IDC headers.
(The triangles are pin 1 on the IDC headers.)
Make sure the headers line up as shown.
(Red will be pin 1 if using a grey ribbon cable)

One at a time line up the headers correctly
(straight so the teeth line up & is not crooked)
Push down with fingers until it grips and confirm all is lined up.
Flush or overhanging the edge a little is correct.
Keep applying firm pressure so it doesn't slip out.

Squash in a vice or use a handheld IDC tool.
It will clip into place.
Confirm the 2 side edge teeth pop through.

Once fitted, bend back the ribbon cable and fit strain relief
clips.

Split the cable further long the middle to increase flexibility
when plugging in the PCBs
© the DON classics 2015 page 11 of 20