[SEDXC] SteppIR SDA 100 controller.

[shallowrock at gmail.com]

Phillip,

I had the same problem when I upgraded from the FluidMotion controller to the newer controller.  After blowing several chips I discovered that I had a wire in the wrong location on the control cable that the FluidMotion was able to manage but that blew the TTL chips.  One suggestion is to triple check your wiring pinouts on the control cable.

Jim Studer AK4I
 

-----Original Message-----
From: SEDXC <sedxc-bounces at contesting.com> On Behalf Of Mack McCormick
Sent: Friday, November 26, 2021 9:39 AM
To: Phillip <kf4uyk at bellsouth.net>
Cc: SEDXC at contesting.com
Subject: Re: [SEDXC] Steppir SDA 100 controller.

Phillip,

The best place, in my opinion, to get help with SteppIR issues is over on the groups.io group.

That said, over there is a list of troubleshooting steps which include checking SteppIR motor resistances and voltages. Finally you’ll need to replace the driver chip. I’ve had to replace driver chips several times and the newer controllers use sockets for these chips. Chips are available for sale at Mouser and perhaps other sources.

Good luck.

Mack
W4AX

On Fri, Nov 26, 2021 at 10:06 Phillip <kf4uyk at bellsouth.net> wrote:

> I purchased a new controller from steppir for my 14 year old three 
> element steppir. As soon as I connected it I received a chip error 
> message. Has anyone in the club had the same experience? Any 
> suggestions Thanks Phillip Kf4uyk
>
> Sent from my iPhone
> Phillip T Williams
>
>
> _______________________________________________
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> SEDXC at contesting.com
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>
-- 

73,

Mack
W4AX
https://www.qrz.com/db/W4AX
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