Hi All, I am shafiq from Malaysia.
Anyone know this item? RX20-30-30k resistor. The green component near power suply.
Anyone facing the failure of this component?. I change the component 3 times since i buy the machine.
Any advice on how to keep this component safe?
It is rare to get the component in my area. need to import from china.
Thank you
Just to say, this component is only on the old model of K40.
new PSU don’t need this external component.
That’s the ballast resistor, and only on the older model of the laser power supply as another reader mentioned. The problem is that it isn’t rated for an appropriate voltage - its rated for 1000V (see datasheet - http://www.micro-ohm.com/power/pwrrx20.html) when its getting a much higher voltage across it. Is it arcing to the case or across itself? You may be able to tightly wrap it with some Kapton tape to improve the situation.
