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Post by bfg10k on Oct 10, 2014 12:28:35 GMT
Thanos: My AMC1280usb was broken Please see the attached image. when plugin usb the screen keep off, and the power light too. Please help~~ Is there any chance that I could only change the arduino board to fix this problem?
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Post by bfg10k on Oct 10, 2014 12:34:44 GMT
Thanos: My AMC1280usb was broken Please see the attached image. when plugin usb the screen keep off, and the power light too. Please help~~ I'm not sure but it is happened when I updated the newest firmware v1l, my AMC1280usb as the same as the one in the image, v1c.
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Post by riton39 on Oct 10, 2014 15:16:54 GMT
I do not see the image. What is happening?
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Post by tronicgr on Oct 10, 2014 17:13:53 GMT
Thanos: My AMC1280usb was broken Please see the attached image. when plugin usb the screen keep off, and the power light too. Please help~~ I'm not sure but it is happened when I updated the newest firmware v1l, my AMC1280usb as the same as the one in the image, v1c. It sounds like something is shorting in your wiring. Disconnect the main AMC1280USB board and plug it in the USB alone (without the 6DOF ext board, or potentiometer wires attached) to see if its still happening. If that works, you need to make sure the potentiometer wiring is not sorting out as all potentiometers are powered by the AMC1280USB. Next step is to connect the 6DOF ext board on the AMC1280USB but leave the motor wires disconnected. Then you can measure some basic voltage points to make sure that none of the chips on the 6DOF ext board is damaged. See in the photo below what voltages you should expect to read on the outputs of each chip (Pin headers and screw terminals): Test the 5V test points first (pin headers between the chips). The analog outputs may give variable voltage depending on the position of the potentiometer attached. The 5v digital points for direction can be either 0 or 5v depending on the direction. A good way to test all the above is to add a potentiometer on the 1st motor positioned near 50% then press the buttons left and right to see if you can get 0 or 5v for the digital and 5v for the analog outputs. Finally, if all the above works, you may attach the 24v power supply and do the same testing for the screw terminal contacts. Let me know of your results. Thanks Thanos
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Post by bfg10k on Oct 11, 2014 13:02:26 GMT
Thanos:
You are right, one sensor's wires are short connected.
I had fixed it.
Thank you very much !
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