Deadpool (Pro)
Stern, 2018This fell off of my node board resulting in intermittent momentary power loss to flipper and lights. legs just broke. Too short to resolder back on. gonna be hard to jumper. Anyone know what this capacitor value is or have a donor node board that I could grab it off of?
thumbnail_20221110_094616 (resized).jpgCould probably find it here using the search function: https://www.alliedelec.com/product/nichicon/rl81c221mdn1kx/70188101/?gclid=Cj0KCQiA37KbBhDgARIsAIzce15ln-EcvUwYV3ceoc1OC1ZFUPLYTCj30eOxEDAvn8Pj5Prq-7y3XHUaAukwEALw_wcB&gclsrc=aw.ds
If not ask for the schematics for the node board or inquire about its specs (uf/voltage/type) with the manufacturer. Give them the board location and go from there.
https://www.mouser.com/datasheet/2/293/e_rne-1919110.pdf
This gives a good breakdown. 470uf is the capacitance/16v is the voltage. If at all in doubt check with the manufacturer or mouser/digikey tech support.
Example: https://www.lcsc.com/product-detail/Solid-Capacitors_Nichicon-FP-016RE471M-NECG_C428866.html
Thanks for the data sheet... so, I have that capacitor (470uf 16v). I do think though that this serves as a helpful hint to anyone experiencing intermittent drops in power while playing. Gotta assume mine isn't the only one with super poor connections or broken legs
Quoted from playa:Thanks for the data sheet... so, I have that capacitor (470uf 16v). I do think though that this serves as a helpful hint to anyone experiencing intermittent drops in power while playing. Gotta assume mine isn't the only one with super poor connections or broken legs
That's a weird problem. Axial capacitors are pretty mechanically sound once installed. The two axial wires physically hold the 'can' tight once soldered. If the capacitor can 'fell off', I suspect it was damaged in manufacturing or assembly or previous user work (after it was soldered in place, something hit the top of the can pretty hard and pulled the wires out, but the plastic kept the can in place when visually inspected) --- the capacitor was likely NOT functioning at all. The node board was likely behaving as as if there was no capacitor installed. Easy to clean the old axial wires out of the holes with a solder sucker, then drop in a new 470u/16v capacitor and consider it a professional repair.
Note: The RED LINE on the edge of the can usually indicates "NEGATIVE" polarity, even though it is printed in RED ink! See: https://www.digikey.com/en/blog/identifying-capacitor-polarization
Quoted from Markharris2000:That's a weird problem. Axial capacitors are pretty mechanically sound once installed. The two axial wires physically hold the 'can' tight once soldered. If the capacitor can 'fell off', I suspect it was damaged in manufacturing or assembly or previous user work (after it was soldered in place, something hit the top of the can pretty hard and pulled the wires out, but the plastic kept the can in place when visually inspected) --- the capacitor was likely NOT functioning at all. The node board was likely behaving as as if there was no capacitor installed. Easy to clean the old axial wires out of the holes with a solder sucker, then drop in a new 470u/16v capacitor and consider it a professional repair.
Note: The RED LINE on the edge of the can usually indicates "NEGATIVE" polarity, even though it is printed in RED ink! See: https://www.digikey.com/en/blog/identifying-capacitor-polarization
I agree there was likely some overt damage, and that capacitors don't usually fall off by themselves.
But just a nit: the capacitor pictured above is a "radial" capacitor. Axial capacitors (which are also very reliable mechanically IMHO) are the ones where the leads are aligned through the center of the component, one at each end. See e.g. https://en.wikipedia.org/wiki/Capacitor#Styles
Quoted from playa:Thanks for the data sheet... so, I have that capacitor (470uf 16v). I do think though that this serves as a helpful hint to anyone experiencing intermittent drops in power while playing. Gotta assume mine isn't the only one with super poor connections or broken legs
No problem. Just make sure it’s a low ESR, 105 degree cap and you will be fine.
Quoted from pete_d:I agree there was likely some overt damage, and that capacitors don't usually fall off by themselves.
But just a nit: the capacitor pictured above is a "radial" capacitor. Axial capacitors (which are also very reliable mechanically IMHO) are the ones where the leads are aligned through the center of the component, one at each end. See e.g. https://en.wikipedia.org/wiki/Capacitor#Styles
My bad… radial it is…
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