A problem with Yamaha Cs-15

[Ken Stone]

>Antti wrote:
>
>>  I'm buying a CS-15 which is a bit broke. Those of you who are   familiar 
>>with 
>>CS-15's internal organs, could you tell me what is the 
>>4cm x .4cm x .6cm black box with three contacts labeled ground, N   and L ? 
>>It's 
>>located in the mains-cable side of the synth.
>
>The box is either the power supply for the synth or an interference filter. 
>If the cables coming out of the box look very similar to those going on , 
>it's most likely a filter. These remove any spikes and RF noise that come 
>down the mains supply, and any that the synth generates itself!

At this size, it's obviously NOT the PSU. Some sort of filter would be the
most likely, either capacitors, or metal oxide varistors (MOVs), though I
feel it is a bit small for this. Removing it from circuit, as it appears to
be across, as distinct from inline with the mains will not cause too many
problems. You will probably lose surge suppression.

The warnings still apply, of course. This is mains, so you're better of
getting someone who knows what they are doing to solve the problem.

Ken
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                Ken Stone  sasami at blaze.net.au
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