Voltage conversion of Accuphase E-650


Does anyone know how to convert voltage of Accuphase E-650 100v to 110/120v? Or does anyone provide information on voltage conversion table of Accuphase E-650?
foolishman

@dbxdx5 

While it is not necessary to bias the power amplifier after voltage conversion, I thought it would be a good idea to record the rail and bias voltages before conversion for future reference.

 

Accuphase E-470

Does that mean that switching the voltage from 100V to 220V requires only moving the connector from K3 to K7 and from K4 to K8 and changing the fuse to 8A 250V slow blow?

@susurin 

Yes, K3 to K7 and K4 to K8 will convert 100V to 220/240V. 

Remove J1 and J3 and install a jumper to J2, which will convert the soft-start resistor array from 100/120V to 220/240V.

 

 

In addition to the above changes, if there is an auxiliary transformer, it will also need to be changed from a 100vV model to a 220/240V model.