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Old 5th Jul 2022, 8:06 pm   #8
EF80TVVALVE
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Join Date: Feb 2010
Location: Leicester, UK.
Posts: 1,431
Default Re: Ampro New Educational - motor woes, issues and solutions

wd40addict, it's not C23, I already replaced that when I first bought the projector as it started shorting. The capacitor I am referring to is within the motor casing itself and is wired between the two brushes for the commutator. As far as I'm aware it isn't actually noted on the schematic. It's value is 0.05uf, different to C23 which sits inside the bottom of the projector and has a larger value of 0.5uF

Now I have the points cleaned and adjusted the best I can, I'm going to run it for a while and see if they bed in a little. The motor is now running correctly but there is noticeable drops in speed every now and then. Hopefully with some use a good contact will be made between the points and rid it of any need for more attention.
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