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We need to confirm which wires are pairs for each coil. The original diagram you posted has them listed as Green & Red as one pair and White & Black (plus shield/bare) as the other, so we need to check that's correct.
Disconnect the Hot Stack's wires from the mini-switch, set your multimeter to 'resistance' (Ohms) and test the green/red pair and white/black pair. You should get a resistance reading, probably 4K+. If you don't get a reading then start switching the pairs, red/black, white/green etc until you get measurable resistance and those are your coil pairs (this video may help).
Also test your mini-switch to ensure that's working correctly. Set the multimeter to continuity test (or resistance will do) and test the switch contacts in each position. Remember, as Simon posted, there are type different 'handed' versions of the on/on/on's so you'll need to test which version you have (as per Simon's image, types 1 and 2):
http://www.buildyourownguitar.com.au...9&d=1480941554
The testing will tell us what's working or should be working and how in needs to be connected. Make sense?
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I think so. The pick up I understand no worries.
With the switch, am I supposed to be checking matched coloured dots?
Also, with the switch, what would be the position of the switch going left to right in each of those diagrams?
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Switch sequence shown is, left to right, down/centre/up (type 1 and 2). Just remember the active contacts are the opposite of the handle position... handle down upper contacts, handle up lower contacts.
The matched coloured dots indicate the contacts/lugs that are linked in each position, so the green are one set of active contacts and lght blue are the other set. To test them just put the multimeter probes on one colour set at a time, red on one black on the other etc and check for continuity.
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With the switches, you only need to test the connections with the switch in the middle position. The switches have rotational symmetry, so it doesn't matter which way up they are. And you are only looking to determine whether your switches are on/on/on type 1 or 2, so in theory you can ignore the top two switches in that diagram.
However, just Googling MTS-2 (embossed on the side of your switch) seems to indicate that it's an on-off switch. The switch does have three positions doesn't it?
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That's why I wanted him to test all positions, to work out the switch type and ensure it's not faulty.
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Or possibly the wrong switch.
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Definitely a 3-way switch, and I believe we sorted out the colours of the correct coils a couple of weeks ago when I checked the hum cancelling against the other single coil? Would that be right?
Sorry, I didn't get a chance to look at the guitar yesterday afternoon. I'll be looking at it tonight.
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I'd assume nothing for now, and find it all out by testing. I'd be surprised if it wasn't wired as the manufacturer's web wiring diagram for it, which could account for some of the things you've been experiencing, but probably not all.
So best to start with a blank sheet of paper, and take it from there.
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Understood Simon, good advice.
I'll come back when I have some info.
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I'll have to draw up a wiring diagram for my HotRod Strat so that others can use it in their builds, when I went to wire up all my pickups, I elected to wire them all up as Humbuckers, but there's no reason why coil-tapping couldn't be implemented, I may do it at a later stage, but I'm pretty happy with it as it is.
@ Zandit Good job with the wiring-up, how is it sounding now?
