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Converting a RR501 X10 RF Transceiver to 220v

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on September 25, 2010 at 4:54:08 pm
 

Although there are several resources on the web (1, 2, 3, 4) on how to convert a RR501 transceiver from 110v to 220v I recently (mid 2010) bought a new one that had an updated circuit. As shown on the following pictures the board says 10432I.

 

 

 

Using Ido Bartana's guide as a base and these general tutorials on 220v module modification (1, 2) I ended with this set of steps

  • Change the large blue, (2E225) from 1uF/250V to 470nf/400V
  • Change the smaller blue, (2E224) located close to the output connector, from 0.22uF/250V to 0.1uF/400V
  • Change the 130V MOV in parallel with the input to 250V RMS
  • Change the 130V MOV in series with the relay to 250V RMS
  • Change the 330k 1/4W resistor going to the output connector, to 470k 1/2W
  • Add a 100 Ohm/1W resistor in series with the 110v cam relay coil

 



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