Hi,
I think I have fixed the problem of phase by flipping green and red wires on the neck pup going into the Triple Shots (TS) so now they are revesed compared to the std wiring. I would however like to confirm if my conclusions as to why there was an issue in the first place are correct and whether I should now be getting the stock outputs including the standard hum cancelling.
Conclusion A: The neck Rail was out of phase when wired per instructions
Sounded very thin in Neck HB parallel mode and Neck P90 mode was louder than series, also neck P90 + bridge P90 was very thin but got louder with change in either bridge or neck volume reduction
Confirmed phase of output from jack and at TS output
---- moving a screwdrive towards the pup and noting voltage direction on a multimetter (MM) attached to hot and gnd of the cable plug
Result All showed positive voltage except Neck Rail setting which showed negative confirmeing what I was hearing - that the Neck Rail was out of phase -- assuming it is not the TS puting out of phase nor a magnet the wrong way round (per conclusions a and c) it must be the pickup wiring
Conclusion B: Magnetic polorarity of each coil is not the cause of the phase issue and will hum cancel in folloing configs HB and P90+P90 or Rail+Rail
-- checked with a compass (north arrow pointing up when held over pickup I took to signify north polarity - based on youtube)
Results N, S, N, S, going Neck to Bridge
Conclusion C: P-rail / TS std colour coding is as below and the Rail coil of my P-Rail was either wound backwards or the green and red leads were connected in reverse by accident at the factory
PUP to TS
Black = Hot P90
White = Gnd P90
Red = Hot Rail
White = Gnd Rail
TS output
Black = Gnd
White = Hot
Checked phase of each coil of the neck pup at the pup leads
-- used MM connected at the pup leads to confirm voltage polarity whilst bring a screwdriver towards the pup
-- the leads were connected to the TS at the time but assumed this would not affect result (still confirmed with different switch setting just in case)
-- took a positive voltage to signify the red MM lead was connected to the hot wire
Results P90: Black hot / white gnd ; Rail: Green hot / red gnd
1) I think green is supposed to be grd and red hot based on research online which matches with conclusions A and B
2) I was expecting white = hot and black = grn like the TS output leads however given its only the Neck Rail that is out of phase presumably the P90 is wired the same way on the bridge pup suggesting actually the black is the hot comming into the TS which is pretty confusing
Word of warning for anyone else trying to use the MM and a metal object to check the phase of a PUP -- it can be very confusing with a digital MM to see the direction as the minus flashes up quite a bit even when it is a predominantely positive voltage reading also I kept on getting different results and thought there was a wire shorting or something I hadn't thought of but finally realised that if you hold the metal object too far away (more than 2-3 cms) it can start to give the reverse result compared to when you do the same with the metal object up close to the pup!
Cheers,
Douglas
I think I have fixed the problem of phase by flipping green and red wires on the neck pup going into the Triple Shots (TS) so now they are revesed compared to the std wiring. I would however like to confirm if my conclusions as to why there was an issue in the first place are correct and whether I should now be getting the stock outputs including the standard hum cancelling.
Conclusion A: The neck Rail was out of phase when wired per instructions
Sounded very thin in Neck HB parallel mode and Neck P90 mode was louder than series, also neck P90 + bridge P90 was very thin but got louder with change in either bridge or neck volume reduction
Confirmed phase of output from jack and at TS output
---- moving a screwdrive towards the pup and noting voltage direction on a multimetter (MM) attached to hot and gnd of the cable plug
Result All showed positive voltage except Neck Rail setting which showed negative confirmeing what I was hearing - that the Neck Rail was out of phase -- assuming it is not the TS puting out of phase nor a magnet the wrong way round (per conclusions a and c) it must be the pickup wiring
Conclusion B: Magnetic polorarity of each coil is not the cause of the phase issue and will hum cancel in folloing configs HB and P90+P90 or Rail+Rail
-- checked with a compass (north arrow pointing up when held over pickup I took to signify north polarity - based on youtube)
Results N, S, N, S, going Neck to Bridge
Conclusion C: P-rail / TS std colour coding is as below and the Rail coil of my P-Rail was either wound backwards or the green and red leads were connected in reverse by accident at the factory
PUP to TS
Black = Hot P90
White = Gnd P90
Red = Hot Rail
White = Gnd Rail
TS output
Black = Gnd
White = Hot
Checked phase of each coil of the neck pup at the pup leads
-- used MM connected at the pup leads to confirm voltage polarity whilst bring a screwdriver towards the pup
-- the leads were connected to the TS at the time but assumed this would not affect result (still confirmed with different switch setting just in case)
-- took a positive voltage to signify the red MM lead was connected to the hot wire
Results P90: Black hot / white gnd ; Rail: Green hot / red gnd
1) I think green is supposed to be grd and red hot based on research online which matches with conclusions A and B
2) I was expecting white = hot and black = grn like the TS output leads however given its only the Neck Rail that is out of phase presumably the P90 is wired the same way on the bridge pup suggesting actually the black is the hot comming into the TS which is pretty confusing
Word of warning for anyone else trying to use the MM and a metal object to check the phase of a PUP -- it can be very confusing with a digital MM to see the direction as the minus flashes up quite a bit even when it is a predominantely positive voltage reading also I kept on getting different results and thought there was a wire shorting or something I hadn't thought of but finally realised that if you hold the metal object too far away (more than 2-3 cms) it can start to give the reverse result compared to when you do the same with the metal object up close to the pup!
Cheers,
Douglas
