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|9th February 2013, 11:37 AM||#1|
Join Date: Feb 2013
Help replacing Logitech Z-2300 transformer for US to UK move (120V to 230V)
First post. I'm looking to get some help converting my Logitech Z-2300 from a US variety on 120VAC to work on the UK's 230VAC.
I found this post very informative:
Help required on Logitech Z-2300 toroidal transformer
However the OP there was looking to replace their transformer and eventually just got it repaired. There was some very useful discussion along the way.
I'm assuming if I can replace my 110V transformer with something that can match the original's output then I should be good to go. Is that assuming too much? What else would I need need to look at? Frequency will be different, will that affect capacitors? Other components?
So here's my train of thought on the replacement transformer:
Picture of my transformer attached.
Input: AC 120V/60Hz (BLK-WHT)
Output: AC 19.9Vx2 (YEL-BLK-ORG)
The EU version is as follows:
Input: AC 230V/50Hz
Output: AC 20.1V x 2
Again I'm assuming the ratings downstream of the transformer are within +/-10% between the US & UK versions, especially considering the outputs are within that tolerance. So if I can find a transformer that can match the EU transformer specs I should be good to go right?
Here's what I found:
An Airlink transformer:
Input: AC 230V
Output: AC 20 x 2
Now here's a slight difference between the two: the Logitech transformer only has three leads coming out of the transformer so it seems to be a center tapped transformer. The one I've picked out is a dual wound transformer with four leads out. According to the linked post above that should be OK. I just have to tie the two ground lines together and connect them where the center tap in the Logitech setup would go. Correct?
Any confirmation, correction would be greatly appreciated.
|9th February 2013, 01:51 PM||#2|
Join Date: Jan 2003
Location: mississauga ontario canada
"I just have to tie the two ground lines together and connect them where the center tap in the Logitech setup would go. Correct?"
Yes, but measure to make sure the phasing is correct...you will either get 40VAC or 0VAC across the two "outside" lines...You want 40VAC.
Make sure your transformer of choice runs at 50 Hz.
Doug We are all learning...we can all help
"You can't stop the signal, Mal. Everything goes somewhere..."
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