Went to look at a guitar yesterday and I'm trying to diagnose some of the problems it had before I potentially buy it. It's an LTD Alexi laiho 200 so single volume control and a single EMG 81 in the bridge position.

Guitar has very little volume when plugged in. The amp and the lead were tested successfully with other guitars so it's not that. Also tested with a number of new batteries for the 81 so not that either. The input jack was loose so owner had previously resoldered it, found this problem, reversed the wiring of the jack to see if that was problem, and found no difference.

The volume control does nothing, doesn't lower, higher or turn the volume off when you use it, guitar just stays at a constantly low volume. Also, when you touch the metal dial for the volume control you get earth hum. That's pretty much all the info I have as it was late and I still had a 90min drive home to do so only had time for a quick look.

I'm not afraid of a fixer-upper or redoing the wiring as I've done a few guitars in the past but I've never come across this combination of problems before. The wiring definitely needs to be redone but my fear is that the pickup is somehow damaged too, which I know is rare, so I'm wondering if anyone with a bit more experience can enlighten me as to what exactly is the cause of the problems so I can fugure out if it's worth pursuing.

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    Don't try and diagnose it just ask the seller what's wrong with it. I really don't think anyone can diagnose it based on a description. You may get a few good guesses. – ggcg Aug 13 '19 at 15:37
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    EMGs are not the simplest things to wire up. When you say you 'reversed the wires' how did you check you had all three connected properly? See emgpickups.com/media/productfile/h/_/h_b245_0230-0106re.pdf – Tetsujin Aug 13 '19 at 16:13
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    @topomorto Definitely, I'm only trying to find more info for myself as to whether it'd be worth pursuing. Made an offer based on worst case scenario and seller wouldn't budge so we'll see what happens. Thanks anyway – Ph03nix89 Aug 13 '19 at 16:43
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    Ahh, sorry, I misread on who had done the reversal. My bad. I'd say if he can't follow a wiring diagram & get it right first time, he may even have blown something. idk what kind of diode protection the EMGs have for reversed polarity. – Tetsujin Aug 13 '19 at 16:58
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    @Tetsujin No worries, I think I am going to give this one a miss as after having a look I've found a pretty nice one from a reputable store in the uk for not much more than what the seller is looking for here. With all the fixes the local one will need it'll proably still be cheaper to get the nicer one shipped based on the sellers attitude. Thanks anyway! – Ph03nix89 Aug 13 '19 at 17:25

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