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Author Topic: CFS motor/sparks a flyin Dominic Espinosa Phenomenal Film Handler Posts: 1172 From: Boulder Creek, CA. Registered: Jan 2004 posted 03-25-2007 03:51 AM                     This evening between reels (platter at rest, dial at 0 on the MUT) the motor shot off 2 big sparks and pops. Following this it was dead. I swapped it out to get us going again but I'm curious what would make it go off like that for no reason with, presumably, no current?  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 03-25-2007 05:33 PM                     ..have you pulled the back off the motor and see what the "poof" was all about? ..bet the diode inside took a dump.  |  IP: Logged Jonathan Worthing Master Film Handler Posts: 384 From: Hereford, UK Registered: Apr 2001 posted 03-26-2007 06:16 AM                     As i remember the switch on the back plate of the motor has a big resistor on it, which if the switch becomes loose can swing in to the motor casing. If the power is on there is power at this part, So sparks can fly at any time  |  IP: Logged Aaron Sisemore Flaming Ribs beat Reeses Peanut Butter Cups any day! Posts: 3061 From: Rockwall TX USA Registered: Sep 1999 posted 03-26-2007 06:56 PM                     Resistor is probably broken in half. I can get you another one. -Aaron  |  IP: Logged

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