Servicing the Pioneer RXM-047 Take Up (Reel) Motor from my CT-F900
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- Опубліковано 27 сер 2024
- I've done four... maybe five... motor services in my life. So why not challenge myself with one of the more difficult ones today? This should go REAL well. No, probably not...
This is part 4 of my CT-F900 series. It just keeps on going with this thing. "Hi Lisa! Hi Super Nintendo Chalmers! I'm learn-ding!!!"
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Camera gear I use:
Nikon D800, Nikon Z50, iPhone XS Max & 13 Pro Max, DJI Action 3, Autel Evo Nano+, Autel Evo Lite+, DJI Mini 3 Pro
Hi Jeremy,
hope you don't mind me adding for everyone who is not sure ...
Centripetal = towards the centre.
Centrifugal = away from the centre.
*Motor amperages:* put in another meter configured to read DC mA. In PLAY mode, typically the DC current into the motor will be about 50mA to 100mA, does depend on the deck of course. I would say from experience that 60mA to 85mA is about normal.
*Motor Controller:* The purpose of the motor controller circuit is to stabilize the speed regardless of load. Of course there are limitations to which the speed can be stabilised; but the controller is ample enough for small peaks and troughs in physical loading. Don't be surprised if a motor doesn't respond well if you apply a voltage of about 9v or less - the controller is designed to work with voltages usually from *about* 10v to 25v.
Eric.
Thumbs up Mr Weather Wolf! - the photography is always good. :o)
Great learning proces
Great job in making it through a first time project looking for perfection. 🎉
Just watched the whole lot. I didn't realise that the motor has no 'onboard' controller. Well done on getting it running, even at 1.5v it was turning!
Great job on the restoration of the motor.
I've tried using those Mabuchi knock-off motors as replacement capstan motors and found them unsatisfactory. Speed variation is an issue. Still looking for alternatives for when an original motor refurbishment is not possible.
You may like to tackle a CT-F1000 sometime… they are wonderful decks!
I would definitely like to. I just have to find one that's affordable first.
I couldn't watch parts of it. Still well done.
While it's on my mind - the spindles are typically 2mm or 2.5mm.
A replacement motor may struggle with the load?, we'll see. I had a similar experience with a Sony TC-206SD - the torque was a little too excessive when the auto-stop mechanical load 'kicked in'; it brought about a 'dither' periodically in speed stability; about every 2 seconds. (Edited x1)
Okay, now I'll shut up and watch the rest of the video .....
;o)