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Author Topic: Pro 35 Power Supply Michael Voiland Expert Film Handler Posts: 219 From: Naperville, IL US Registered: Aug 2009 posted 10-23-2009 04:28 PM                     Does anyone know the voltage of the pro 35 change over solenoid one of the power supply died on one of the ones we have.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 10-23-2009 06:28 PM                     Usually it's the electrolytic capacitors that fail. Some times the relay. Generally they are easy to repair and shouldn't need to be replaced. Mark  |  IP: Logged Michael Voiland Expert Film Handler Posts: 219 From: Naperville, IL US Registered: Aug 2009 posted 10-23-2009 10:44 PM                     I think its just a little transformer. I just was wondering because I haven't had the time to go over and look at it yet.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 10-24-2009 05:04 PM                     The transfomer is one with poor voltage regulation for a reason under no load it charges a cap to around 100volts which supplies enough umph to lift the changeover blade and then maintains nominally 24volt to hold it up  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 10-24-2009 07:12 PM                     Just change the cap... really, its perhaps a 10 min. job for even the inexperienced. Be sure to get the polarity on the new cap the same as the old one! I believe you'll find it on the rear of the little chassis. Fixes the problem 98% of the time. The other 2% may be related to a bad relay. Mark  |  IP: Logged Michael Voiland Expert Film Handler Posts: 219 From: Naperville, IL US Registered: Aug 2009 posted 10-25-2009 11:25 PM                     Ok I will do that when I get over to that theater.  |  IP: Logged Michael Voiland Expert Film Handler Posts: 219 From: Naperville, IL US Registered: Aug 2009 posted 01-25-2010 05:14 PM                     Off hand you wouldn't happen to know the voltage and capacitance of the capacitor would you.  |  IP: Logged

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