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Post by ksilcox on Feb 24, 2022 15:34:48 GMT
I have a machine that keeps blowing fuse 302 on the SMP any ideas?
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Post by SrCusEngr on Apr 14, 2022 19:21:14 GMT
F302 is for one of three +5VD voltages (5 volts digital). It goes to P5 on the SMPS, PIN number 10. That wire feeds either PS1 or PS2 of the Basic Board. So any of the 4 boards could be the problem. Get some fuses and put a new one in, then remove the AB and turn on. If fuse blows, repeat but remove DB. Repeat until you find the culprit.
P.S. Wiring and Tubing diagram shows harness layout between boards.
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