CNC Controller IC Help
CNC Controller IC Help
(OP)
My company received a new CNC controller system for our router. It came with a small set of boards (one power, one controller, one interpolator). During intial setup, one of the guys putting it together thought he knew what he was doing and in fact didn't. The IC on the interpolation board began smoking and popped a hole in the top... so we need a new one!
I can't make out the entire part number on the top of the IC, which is a problem for me, but I need someone to possibly help knowing the application.
What I do know:
Texas Instruments SN74LS_____ (the burn through was right there)
Also, there is an additional set of characters: SCHXRXK
This was damaged by the blow-out, but I'm fairly certain that is what it has printed.
Can anyone help me determine which of the SN74LS series IC's this is? We are in desperate need of getting the machine up and running!
Thanks ahead of time!
I can't make out the entire part number on the top of the IC, which is a problem for me, but I need someone to possibly help knowing the application.
What I do know:
Texas Instruments SN74LS_____ (the burn through was right there)
Also, there is an additional set of characters: SCHXRXK
This was damaged by the blow-out, but I'm fairly certain that is what it has printed.
Can anyone help me determine which of the SN74LS series IC's this is? We are in desperate need of getting the machine up and running!
Thanks ahead of time!





RE: CNC Controller IC Help
RE: CNC Controller IC Help
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: CNC Controller IC Help
Any chance anyone could help?
Here is the schematic of the board with the pinouts to the 3 axis driver system...
http://xs216.xs.to/xs216/07261/BufferCard.PNG
RE: CNC Controller IC Help
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: CNC Controller IC Help
I agree with otyhers that trying to replace just the IC is probably pointless, it was likely the LAST component to go in a cascade of failures.
Try looking into a 3rd party repair company, such as Electrical South, who specializes in repairing industrial equipment. They keep archives of schematics on anything they have ever worked on and often contract with manufacturers to do their repairs now that cutbacks have become the norm.
http://www.elsouth.com/
RE: CNC Controller IC Help
Sadly the ??? is about 100 different values.
Too bad the "74LS" didn't fry instead.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com