need another set of eyes. SOLVED

[jimilee]

Can you see a difference at all between these two schematics? I've hunted and I don't see it. The problem I'm having is it goes from ungodly slow to usable fast but no more. It should go much faster speed wise.

https://www.dropbox.com/s/w0k8tt42pbc51wc/ross.pdf?dl=0

https://www.dropbox.com/s/jc6b0jlvhy90gc4/schem.pdf?dl=0

[jessenator]

https://www.dropbox.com/s/w0k8tt42pbc51wc/ross.pdf?dl=0

https://www.dropbox.com/s/w0k8tt42pbc51wc/ross.pdf?dl=0

Looks like both are the same link. Did you mean to pop in a different one? If not, they're the same 

[jimilee]

https://www.dropbox.com/s/w0k8tt42pbc51wc/ross.pdf?dl=0

https://www.dropbox.com/s/w0k8tt42pbc51wc/ross.pdf?dl=0

Looks like both are the same link. Did you mean to pop in a different one? If not, they're the same 

Dammit!!!!  I'll upload the other one.

Edit:Fixed

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[mauman]

First one: no pulldown R @ input, no series diode in power (uses the diode as a crowbar instead), no 100u 9V filter cap, smaller VB filter cap (10u vs 47u).  Part numbering is different beyond that.

[jimilee]

First one: no pulldown R @ input, no series diode in power (uses the diode as a crowbar instead), no 100u 9V filter cap, smaller VB filter cap (10u vs 47u).  Part numbering is different beyond that.

Fundamentally though, no differences then?


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[mauman]

No functional difference.

[mauman]

Switching is not shown, that could be different (ground the input/output on bypass, etc.)  One LED/CLR is shown, the other is not.

[jimilee]

Switching is not shown, that could be different (ground the input/output on bypass, etc.)  One LED/CLR is shown, the other is not.

It's just on my test platform right now. It's gotta be a part then. I've switched ICs, I'll check the others again. Thanks for looking at it.

Edit: and this is what happens when you get cocky and over confident in your skills. I checked the resistors, and film caps but not the electros, found the wrong one and fixed it.


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