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#1
 
02-10-2009, 09:29 AM
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Hello, I burnt one of my SLA7062M chips on a late 4AUPC rev.2 Hobbycnc board due to a disconnected motor. It was set to work with 1/8 step. i.e. J2 OFF J3 ON. I change the chip with a new one. The board works properly, but surprisingly it is working in 1/4 step mode. I have not changed the jumper positions yet to be sure. My questions are: 1- Are there different types of SLA7062M regarding their 12 and 13 pins configuration? The previous one had a serial number of 0233, the new one are 0202. 2- Is it possible that some other components are damaged on the board? The current adjustments voltages (Vref) were checked and are correct. Thanks in advance Nader  |
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