Hi everyone,
I am moving to a 220V/50 Hz country in a couple of weeks, coming from 120 hz/60 hz in North America.
I have a Sony PS-X50 turntable, US/Canadian model which operates only 120 volts/60 hz. There is also an "AEP,E" model which has a voltage selector for operation of 120/220V 50/60 Hz.
I have an isolated voltage transformer which I will already be using with some appliances. My question is whether my DC-motor driven turntable will see a difference at 50 hz.
1) I understand that power transformers operate less efficiently at lower line frequencies. According to the service manual, the part number for the North American model is slightly different than the other. How likely is it that there is a significant difference when the power consumption of the turntable is relatively low? Is there a way for me to test the adequacy of the transformer?
2) Attached are the circuit diagrams of the only differences between the two region models. To me it does not appear that line frequency is a consideration on the power supply board, except for perhaps the transformer. Can someone advise as to whether the turntable is safe to use at 120V/50 Hz? Edit: I did just notice that the US/Canadian model has 3 extra resistors slightly beyond the power supply board. Note that I can easily remove/bypass these resistors if instructed, but I don't have an overall knowledge of how the circuit works.
Thanks for your help.
I am moving to a 220V/50 Hz country in a couple of weeks, coming from 120 hz/60 hz in North America.
I have a Sony PS-X50 turntable, US/Canadian model which operates only 120 volts/60 hz. There is also an "AEP,E" model which has a voltage selector for operation of 120/220V 50/60 Hz.
I have an isolated voltage transformer which I will already be using with some appliances. My question is whether my DC-motor driven turntable will see a difference at 50 hz.
1) I understand that power transformers operate less efficiently at lower line frequencies. According to the service manual, the part number for the North American model is slightly different than the other. How likely is it that there is a significant difference when the power consumption of the turntable is relatively low? Is there a way for me to test the adequacy of the transformer?
2) Attached are the circuit diagrams of the only differences between the two region models. To me it does not appear that line frequency is a consideration on the power supply board, except for perhaps the transformer. Can someone advise as to whether the turntable is safe to use at 120V/50 Hz? Edit: I did just notice that the US/Canadian model has 3 extra resistors slightly beyond the power supply board. Note that I can easily remove/bypass these resistors if instructed, but I don't have an overall knowledge of how the circuit works.
Thanks for your help.
Last edited:
Hi Sreten, thanks for the assurance.
However, what is the justification that it will operate at 50 hz? Is it because the transformer will likely be fine given the low power? What are the extra 3 resistors outside of the power supply for the US version? Should these be removed/shorted?
Just wondering if anyone knows why the 50 hz circuit diagram is different than the 60 hz one, outside of the power supply (3 resistors).
Being a Sony, great care is employed to ensure the design complies with all safety regulations in all countries. The resistors shown are safety components and dependant on country.
The deck will work with 50 and 60HZ with no component changes for frequency.
The deck will work with 50 and 60HZ with no component changes for frequency.
- Status
- Not open for further replies.