Re: Any electronic experts?

["Jon Whiten" <jon.whiten@xxxxxxxxx>]

Assuming all eles OK, my guess is that your laptop is not pumping out
enough
volume - the kit needs between 2 and 60W input.  At the risk of killing the
Opto, you could try shorting R2 with P1 set to minimum and Laptop to
minimum
and try adjusting until it works?

HTH

Jon


On 09/09/2008, Marc Fuller <groups@xxxxxxx> wrote:
>
>   Silly question knowing the people on this list :D
>
> Anyways, I am having some problems that are driving me mad and I'm
> looking for help from the group. As some of you may know I am trying
to
> build a lighting generator. So I bought this kit from Quasar.
>
> http://www.quasarelectronics.com/1006.htm
>
> Now it's a simple kit. Very simple. Only 5 components. As usual though
> the instructions are useless.
>
> http://www.quasarelectronics.com/kit-files/smart-kit/1006.pdf
>
> So I bought a kit and built it as per the instructions. The build went
> well and I was happy. Except it doesn't work. Thinking I may have
> applied too much heat to the IC, I bought another kit and tried again,
> this time using an IC socket to stop possible damage. This one was
built
> even better and I was well pleased... except this one doesn't work
> either. I can only assume I am missing something here. I really don't
> know what the hell is going wrong with it. I've built things far more
> complicated than this that involved hundreds of components, but here
is
> this little kit.. driving me mad.
>
> I have connected Positive mains to pin 6, negative mains to pin 5. Pin
3
> is connected to Negative to the lamp and pin 4 to Positive to the
lamp.
> I connected pin 1 to the sound input positive and pin 2 to input
> negative (tried this both ways btw). The input is from my laptop
playing
> a sound file. When I connect a speaker across pin 1 and 2 I get sound
ok.
>
> For all I can see this should be working, but it's not. What the hell
am
> I missing? I am sure all my joints are OK and there are no shorts
across
> any contacts.
>
> I know it's hard to diagnose like this but Quasar are no help at all
and
> I'm at a loss. I would also be happy to pay someone to take a look at
> it!?!?
>
> Any help appreciated.
>
> Marc
>
>


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