Circuit board help

[Wayne-Ooo]

I've acquired a Circuit Racer machine and the circuit board has some bad components.

I really don't know much about electronics, but there are 4 diodes, (I think that's what they are), that need replaced.

Looks like the numbers G1 425 printed on them, but I search this and can't seem to find a diode with these numbers.

Really, I could use some help on what to replace these with. The circuit board takes 24 volts to operate. Really, I don't even know if they are diodes and if so what kind of diode. I think there are different kinds of diodes.

Any help would be appreciated. Thank you




cre.png


cre1.png


cre2.png


cre3.png



cre4.png



cre5.png

[Drunkenclam]

diode bridge rectifer. all 4 of them used to convert AC to DC.

https://www.digikey.com/en/products/...BAtAFSRAF0BfIA

Check the sizes against the data sheet

[Wayne-Ooo]

diode bridge rectifer. all 4 of them used to convert AC to DC.

https://www.digikey.com/en/products/...BAtAFSRAF0BfIA

Check the sizes against the data sheet

Thank you, Drunkenclam.

If this was your machine, is this what you would try? Based on the photo's.

The dimensions on the datasheet seem to be close.

[Drunkenclam]

Quite a high current one, I think maybe this would be better.

https://www.digikey.com/en/products/...5822RLG/807334

[Wayne-Ooo]

Quite a high current one, I think maybe this would be better.

https://www.digikey.com/en/products/...5822RLG/807334

Thank you, I really appreciate you helping.

[Wayne-Ooo]

Glad I took pictures before removing them, they just fell apart when removing.


20241013_141551_resized.jpg

[Drunkenclam]

Might be age or to much current drawn through it.. Would have caused a short in the power supply making things worse. Might be worth putting an online fuse on the incoming supply. Starting with a 2A fuse. Hard to give a proper value as don't knie the full spec.

[Wayne-Ooo]

Well, I decided to change everything on the circuit board.

I researched the existing components by any markings I could get off of them. I really wasn't able to find the original part, so I just ordered what I thought was the same or similar part.

After changing all the parts, everything works just like new.
This is what I ordered, all the parts came from Amazon. 1-Resistor (220ohm +-5%), 1-24vdc 5 pin relay, 1-capacitor (picture shows 100v but I ordered 50v) and 6-24v zener diodes.




resistor.jpgrelay.jpgcap.jpgdiode.jpg



speed racer circuit board.png

[MrGneiss]

Nice!!

[takethecastle57]

Nice work !

[sparky kilowatt]

Fantastic!

[Drunkenclam]

didn't buy japanese components

[Wayne-Ooo]

didn't buy japanese components

Truth be told, I really had no idea what I was buying.

[Steve2000]

Zener diodes for a bridge rectifier?

[Silverballs]

Fire that mother up!

[Wayne-Ooo]

Zener diodes for a bridge rectifier?

Fire that mother up!

Don't know if the parts are the correct ones or not. I do know that it works as it is suppose to.

When a ball triggers the switch, the #1 light comes ON and the solenoid activates, (which would open the tire). As balls continue to trigger the switch the #1 light goes out and # 2 comes ON. All the way to #5 light. When the 6th ball triggers the switch, #5 light goes out and the solenoid deactivates, (closing the tire).

At any time during the progression of lights, a ball enters the green colored pass throughs. The lights go out and the solenoid deactivates.

Works as it was intended to.