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Topic # 105042 26-Jun-2012 11:07 Send private message

I'm hoping someone might have an old AC Adapter they no longer use; 17V\2.3A is the rating on the one I need to replace - I imported an ipod docking station but am currently using the AC adapter with a travel adapter; not ideal so am looking for a replacement. Failing that any ideas on somewhere that sells them new?

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  Reply # 646300 26-Jun-2012 11:39 Send private message

Hi, is this what your after

http://www.jaycar.co.nz/productView.asp?ID=MP3476&keywords=laptop+supply&form=KEYWORD

Cyril



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  Reply # 646320 26-Jun-2012 11:57 Send private message

@cyril7: That may well work, but geez not cheap, lol.

The one that came with it was an "all in one" thing where the plug is built into the adapter; I hadn't thought of trying a laptop adaptor! I have a couple of spare ones at home so will check the rating on it and try one maybe ;-)

Thanks

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  Reply # 646326 26-Jun-2012 12:02 Send private message

Hi, I would doubt the device you are powering is that sensitive to the actual voltage, so I would say any 15-20V supply with adequate current will work just fine. In most appliances like this first thing you hit once your in the DC inlet is a charge circuit for any batties within, a circuit which typically will have a very wide input voltage tolerance, and then this is followed by a bunch of regulators, so the actual input supply does not have to be exact.

Cyril



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  Reply # 646342 26-Jun-2012 12:24 Send private message

Thanks, good to know.  The dock is one of these: Octiv 650 so it doesn't have batteries as such. Do you think still relatively safe to try?

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  Reply # 646434 26-Jun-2012 15:28 Send private message

The manual shows a picture suggesting the input might be something like 9V 3.5A, so it might be the power rating that matters more than the exact voltage. What is printed on the back of the unit by the DC socket? Lately amplifiers are digital ("switch mode") to remove the need for costly heat sinks and assembly cost. Let me know and I'll see if we have a suitable power adapter at a price that (probably) can't be beaten.




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  Reply # 646460 26-Jun-2012 15:47 Send private message

Well spotted Neil, infact I clearly read 5V 3.5A.

Cyril

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  Reply # 646506 26-Jun-2012 16:54 Send private message

It's not 17watt / 2.3A on it by chance?

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  Reply # 646520 26-Jun-2012 17:44 Send private message

Cyril, don't know how you did it as my eyes are perfect. Perhaps a different version manual in a different resolution. Anyway, 5V 3.5A = 17.5W which makes sense. In a few months I will be able to offer 5V 15W, but not right now.




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  Reply # 646536 26-Jun-2012 18:12 Send private message

pwoer supply

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  Reply # 646547 26-Jun-2012 18:36 Send private message

Sidefx, thanks for the photo. But what does it say on the back of the speakers by the power socket?




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  Reply # 646563 26-Jun-2012 19:01 Send private message

Yeah, be interesting as the manual shows 5V.

Cyril



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  Reply # 646634 26-Jun-2012 20:28 Send private message

That is odd, but I guess the manual is wrong:

input

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  Reply # 646698 26-Jun-2012 22:07 Send private message

Okay, so the product changed or the manual is wrong. It was odd there is no specifications in the manual, perhaps a generic one for the range and only the title page gets changed or something like that. Can't help you with 17V, but we do have 12V 5A for around $20 to $25. Try your modem power supply (most are 12V as you require) and it is highly unlikely that a lower voltage will damage anything. The modem power supply will not be able to run it at high volume as it is rated only 1A or so, but it is just a check that the speakers will run off 12V. Then I offer you the 5A one we have at work. From memory we get it from Mean Well which is a reputable brand. I'm in Pakuranga so not too far from Dominion Road.




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  Reply # 646737 26-Jun-2012 23:12 Send private message

Hmmm, a 12V\1A adaptor "works" but doesn't seem to drive the sub-woofer properly - it just makes annoying popping sounds when turned up a bit (even still relatively low - less than half full volume). And of course the speakers output a much lower volume.





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  Reply # 646745 27-Jun-2012 00:41 Send private message

i might have some old 15v\5A adapters (ex toshiba laptop power supllies) at the office in greenlane...




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