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Modify UM506 from 110V to 230V
Posted: Fri Feb 18, 2011 11:28 pm
by JanWillem
I want to modify a UM506 universal module to 230V operation. On the internet I found instructions on Hans Attersjo's site. Yet, the components on the PCB don't seem to match his description. Can anyone help me which components (by component number) I should change? Or does anyone has e wiring diagram of this UM506?
Thanks for helping me out.
Re: Modify UM506 from 110V to 230V
Posted: Sat Feb 19, 2011 7:18 pm
by esschenk
Re: Modify UM506 from 110V to 230V
Posted: Tue Feb 22, 2011 4:33 pm
by JanWillem
Ed, thanks for your input. The pcb of my universal module looks quite different from your powerflash module. See photo. Printed on the large blue cap is .47K 250V, a .47uf cap. I gues this one should be replaced for a 400V version, but at what value? Close to the large blue cap is the varistor; must be replaced with a 250V version. What else should be modified? Has anyone done this before or have a suggestion? The print on the small blue cap (C19) says "CE 222M", 250V. Any help or schematic is welcome.