A work order was received from imaging staff that the c-arm won't power up.The device was troubleshooted and it was found that the isd (intelligent shutdown board) was bad and kept blowing fuses.The isd board was replaced and the c-arm worked fine for about two months.After that time, another call was received from the imaging tech again about the same problem and it was found out that the isd board was bad again.The board was replaced under warranty.The bad board was sent back to ge/oec for credit and evaluation.Before returning the unit back to service, we found the locking nut for the umbilical cord (high-voltage cable to the c-arm from workstation) connector assembly was loose.This might have been what's causing this isd board to short out and blow fuses.Ever since the connector has been fixed, we no longer received calls about this problem.Also it is very important to unplug from the outlet first before unplugging the high voltage cable from the c-arm to the workstation.
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