Tron PSU - +5 problem

[Judder]

So I'm digging around in the bottom of the Tron cabinet and there are _two_ transformers in this unit for some reason.

The first is obviously the standard US transformer that has the same type of US cord connected to it, complete with plug, as per our Defender machine had

However in the background there is a _second_ transformer that is connected to the plug from the first transformer and then outputs to it's own cable which is White, Black and Green

So I squeezed my head, arm and blackberry through the coin door and managed to get a close up of the label on the second transformer

So it's Canadian which would make sense on what I know about the machine, 300VA (kind of like 300Watts but different) but again would make sense but seems to be inputting at 150V and then outputting at 150V??

Anyone got any clues as to why this might be in-line because AFAIK Canada uses the same 150V power supply as the US????

Many thanks again!

 

[Judder]

Just to follow up on my own post, having a quick Google on the model number implies that it is an isolation transformer used for safety?

http://www.newark.com/hammond/171c/isolation-transformer/dp/93K7636

 

[DanP]

It does look like an iso transformer. Maybe the one included on the power brick isn't working? Usually you wouldn't need a second one.

Dan