With one of my RYTHMIK subs (bought as a kit) when I plug the power cord into the IEC input there is a flash.
Been going on for a few months and decided to take a look yesterday.
These have an input voltage switch and when I took all of the shrink wrap off of the switch it did look suspect.
So I start to map out the wiring and it doesn't look like anything I have ever seen, which is not saying too much. I look on the transformer and it says this transformer has two primaries but one is center-tapped. I have never seen that before which helps explain my confusion.
Easy enough to identify what is what - I feel confident I have it wired with the primaries in parallel but wonder if anyone can explain why this arrangement? Does it have something to do with the dual input voltage? I cannot imagine why this would be needed. Is there a country with 180 volts AC? Assuming center tapped mean it is in the center.
Before I turn it on I would like to know if there is something I am not aware of.
If someone knows the information it will be appreciated.
Thanks and take care,
Been going on for a few months and decided to take a look yesterday.
These have an input voltage switch and when I took all of the shrink wrap off of the switch it did look suspect.
So I start to map out the wiring and it doesn't look like anything I have ever seen, which is not saying too much. I look on the transformer and it says this transformer has two primaries but one is center-tapped. I have never seen that before which helps explain my confusion.
Easy enough to identify what is what - I feel confident I have it wired with the primaries in parallel but wonder if anyone can explain why this arrangement? Does it have something to do with the dual input voltage? I cannot imagine why this would be needed. Is there a country with 180 volts AC? Assuming center tapped mean it is in the center.
Before I turn it on I would like to know if there is something I am not aware of.
If someone knows the information it will be appreciated.
Thanks and take care,
It is common for "international" transformers to have the ability to accept a number of different mains voltages. In general, the 115V or 230V are the common standards, but sometimes there are variations of 10~20V, like in Japan.
To accommodate with slightly different voltages, taps are provided, but they are never center taps.
You need to feed one of the primaries with 115V and measure the tapped primary to have an idea of what voltage the tap(s) is (are)
To accommodate with slightly different voltages, taps are provided, but they are never center taps.
You need to feed one of the primaries with 115V and measure the tapped primary to have an idea of what voltage the tap(s) is (are)
Thanks, Elvee.
Unfortunately, with all of the glue it is likely impossible to see what that center tap does since access to the what the secondaries are connected is near impossible.
Later - ended up using the schematic on the transformer. I did use the series lamp to make sure, though. All is well.
Take care,
Unfortunately, with all of the glue it is likely impossible to see what that center tap does since access to the what the secondaries are connected is near impossible.
Later - ended up using the schematic on the transformer. I did use the series lamp to make sure, though. All is well.
Take care,