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Help me Jamma wire for the first time...

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slapaham:
OK, so this seems pretty straight forward - however, I have a couple of queries and I'm also a bit nervy that I'm going to wire it up wrong and blow something up!

Anyhow, my cocktail table's speakers have no indication as to which side is + and which is -

The colours are exactly the same and the terminals also... can I just attach to whichever - or does it have to be a specific way around?

Next up is the monitor set-up - I have red, blue and orange wires as well as grey and white coming from the monitor... orange!? Would I be right in thinking or at least guessing this would be green (confusing as that sounds!) but the tools that made the cab coloured it orange instead!?!?! Also, I take it, from my experience, if I wire the white and grey wires round the wrong way, no damage should be caused as these are just sync and ground - the image would just a scramble if they were the wrong way around?

Another question - my PSU hasn't got a -5V - will this matter? Obviously I want be able to play games that require -5V but if I just tape the end of the wire coming from the loom that should be alright shouldn't it?

Sorry if I'm being a bit over cautious but I like to make sure I'm doing things properly if I haven't done them before! ;)

Thanks guys! :cheers:

Kman-Sweden:
You could use a small battery to check what is + and -.
See it the speaker cone pops outwards (+) or inwards (-). Please correct me if I'm wrong.

CheffoJeffo:
Never trust wire colours -- trace them back to the harness. Having said that, I've mixed up video signal wires without bad consequence.

You'll be fine without -5V, although some games require it.

slapaham:
Cheers guys... trouble is the monitor positioning makes it bloody awkward to trace the wires... I'll keep you posted!

BobA:
No need to worry about plus and minus on speakers unless you are wiring stereo and need them in phase.  A single speaker arcade cab can be wired any way you want.

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