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Problems with Invertor for PS2 

 

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 Post subject: Problems with Invertor for PS2
Posted: Sun Nov 14, 2004 9:14 am 
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Installed my inverter today (300w continuous modified sine wave), and there is a shocking 'hiss' through the speakers....if i connect the PS2 to a powerpoint rather than the inverter all is fine, but when i connect it to the inverter it hisses...I've run the power cables well away from all audio cables, is it possible that i need a pure sine wave inverter? or could i simply use a 'car stereo line isolation transformer (Jaycar STOCK-CODE: AA3085)? Any info will be greatly appreciated....
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Posted: Sun Nov 14, 2004 9:53 am 
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narr u need to a) get a better earth, or b) cant remember what they are called but u put them inline with the power to remove that wound, its eletrical interferance

 

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Posted: Sun Nov 14, 2004 12:07 pm 
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Basicly there are 2 types of invertes out there.

The ones they make for fridfes and stuff with heaps of noise and the good ones with no noise.

There is a relitavily inexpensive haigh one on the market that has almost no noise.

Have a shop around and see if you can try before you buy.

 

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Posted: Sun Nov 14, 2004 12:24 pm 
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is the inverter running thru the cigarette lighter, or from an existing ignition source ?
if this is the case run power straight to the battery, and if you want igniiton power only, use a relay to do this.
you can get interference noise from car electricals when using ignition.

 

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Posted: Sun Nov 14, 2004 12:54 pm 
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Nope, Power's straight from the Battery, I'm beginning to think it may be the inverter itself...if anyone has experience with noise like this it'd be good to hear any idea's or suggestions?
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Posted: Mon Nov 15, 2004 7:38 am 
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nop, when I put mine in I first ran it off the cig lighter and got noise on my lcd screen, I then whored for some random 12v wires I found and gleaned up a tidy groud point and all noise went away

 

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Posted: Mon Nov 15, 2004 8:55 am 
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Yeaqh im using a fairly cheap inverter with a PC and dont get any noise whatsoever. Hows the earth on it?

Yeah if all else fails try a noise suppressor from jaycar.

 

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Posted: Mon Nov 15, 2004 10:20 am 
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How much do noise suppressors cost, and what do you run them between?

 

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Posted: Mon Nov 15, 2004 11:56 am 
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What speakers are hissing?

 

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Posted: Mon Nov 15, 2004 7:51 pm 
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Thanks for all the invo guys, from what i can see it was that the inverter was too close to the PS2...moved it away, and the noise dissappeared. Put it back, noise came back. Interferance of some kind? Got me beat. Anyhoo...thanks guys :)
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Posted: Tue Nov 16, 2004 8:39 am 
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Daniel wrote:
How much do noise suppressors cost, and what do you run them between?


Daniel, from what i understand these are some kind of magnetic device. They usually go in between the power source and the device (i.e. tapped into the +ve wire). Get them from Jaycar, i think they're around $10-$15.

 

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Posted: Wed Nov 17, 2004 8:29 pm 
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so your going
12VDC -> 240V AC -> 12VDC
dim-witt.asi9.org/ps2.html
i think that gives u the document to convert it so you can go from the cigarete lighter

 

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