To prevent blowing fuse F116 continuously I want to connect a ColorDMD CHROMA REV A1 to a HAPP 110W power supply.
Other topics about this seem to contradict each other and when I asked the people from colorDMD I got the following reply:
We don't recommend or support using an external power supply with the ColorDMD board. If you have other mods running from 12V, suggest you use
the power supply to power those mods. The reason is that there is a data cable that crosses between the display board and ColorDMD and it's very
important that those boards remain on the same ground. If you are not sure what you are doing, it's possible to damage one or more of your boards.
If you have other lighted mods like toppers or LED strips, they can be connected to the external supply.
However, to answer your question the ColroDMD power cable is keyed as:
1 Gray 5V
2 Black Ground
3 Gray/Yellow 12V
Fuse F116 blew while other mods were disconnected, so I want to go ahead and connect it to an external power supply.
The power supply has:
p6 - FG
p7 AC 115V
p8 AC 115V
As 115V Source I found a loose 9 pin male connector providing power when the machine is switched on. I found that his is an undocumented bill acceptor cable with the following pinout:
s4 AC 115V (white)
s6 AC 115V (black)
s7 credit (+) [N.O.] (orange/red)
s8 credit (-) [Common] (black/white)
I am not sure how to exactly connect each wire and ground it correctly, is the table below correct?
c2 (ground) to p2 (GND)
c3 (12V) to p5 (+12V)
p7 (AC 115V) to s4 (AC 115V white)
p8 (AC 115V) to s6 (AC 115V black)
Any ground wires, what is FG?