Light Machine Corp. Benchman XTr (retrofit)

The output enables for U2 & U3 originate at U4. The Latch Enable originates at U10. I guess I missed the part where you told us that RN5 was bad. Are you troubleshooting with an oscilloscope or a meter? Hopefully an oscilloscope. When U2 pin 11 goes low, it latches internally and "captures" the status of the signals on the D pins 2-9. When U2 pin 1 goes low, that data is presented on the Q pins 12-19. you will not detect these signals with a meter, you need an oscilloscope.

Well, I gave up trying to figure this out and sent the board into Intelitek. Hopefully they can diagnose the problem. I will let you know what they tell me. Thanks again for all the help!

Please let me know what the results are.

Have a small problem. I have a wire that broke off the spindle assembly. I think it is the spindle position sensor (not using it currently but hope to in the future). It has three small wires, Black, Blue and Yellow I think. I wanted to see where it goes and rewire the unit. I COULD just splice the wires but I have only a short piece to work with on the spindle side. I want to remove the round black assembly that sits on top of the spindle and I believe it houses the pnuematics for the tool clamp. It has two air hoses. I backed out 4 long bolts that seem long enough to be the mounting bolts but the assemble did not come loose. I tried one of the other bolts but it was way too short to be a mounting bolt so I am confident I have pulled the correct ones. I tapped it pretty good with a dead blow hammer to see if it was just a waterproofing sealant that was holding it in place. Didn't budge. If I understand how the tool clamp works, I don't see what I else I would need to remove this piece. (I believe the pnuematic just pushed down on the tool clamp when activated for release and a spring clamps the tool in place when the pnuematic is deactivated so it should be totally clear to allow the spindle to move freely. ) Any hidden wisdom I might be missing?

Oh WOW! Brilliant! Just what I needed! I'll include you in our Thanksgiving Day Thanks list!!!

I have repaired the spindle sensor wires. Ok I ASSUME this is the index sensor for the spindle since it is the only sensor on the spindle. It has three wires, Black, Blue and Brown. Anyone have any information on this sensor and what signals to expect or some diagram that shows how it is powered?

Thanks

Question.... This is a picture of the tool clamp from underneath. There is a screw hole on the rim. Mine came as seen and the question is, "am I missing something here?" Also, I have been trying to read the proximity sensor and I am pretty sure it is working, but it is not sensing anything. I assume it is an index for the tool changer. Is there supposed to be a magnet or a piece of raised metal that it is supposed to detect?

Thanks

Steve