# Steve Vai PIA HSH autosplit volume push-pull high-pass Canonical page: https://guitarwiring.app/wiring-diagrams/dimarzio/steve-vai-pia-hsh-autosplit-volume-push-pull-high-pass Steve Vai PIA HSH autosplit volume push-pull high-pass Steve Vai PIA HSH autosplit volume push-pull high-pass. Transcribed from the manufacturer wiring sheet and checked against the engine. Drawing: https://guitarwiring.app/wiring-diagrams/dimarzio/steve-vai-pia-hsh-autosplit-volume-push-pull-high-pass.svg (back of controls) ## Parts and values - Neck PAF Pro: Neck PAF Pro; generic (Humbucker (four-conductor, DiMarzio colours)) - Middle HS-2: Middle HS-2; generic (Single-coil pickup (two-conductor)) - Bridge PAF Pro: Bridge PAF Pro; generic (Humbucker (four-conductor, DiMarzio colours)) - 5-way switch EP1104: 5-way switch EP1104; compatible example (Oak Grigsby 5-Way) - Volume 500K push/pull (high-pass): Volume 500K push/pull (high-pass); 500k; compatible example (500k Push-Pull DPDT) - Tone 500K custom taper: Tone 500K custom taper; 500k; compatible example (CTS 500k Audio Pot) - .022µF: .022µF; 22nF; compatible example (Orange Drop .022µF) - Output jack: Output jack; compatible example (Switchcraft \#11) - Bridge ground: Bridge ground; generic (Bridge ground wire) - 330pF: 330pF; 0.33nF; compatible example (330 pF Ceramic Capacitor) ## Specific to this wiring - HSH autosplit on five-way; volume push/pull switches 330pF high-pass. - Utopia pickups use generic DiMarzio four-conductor / single-coil stand-ins. ## Connections 1. Neck PAF Pro gnd → Volume 500K push/pull (high-pass) casing (wire, green) 2. Neck PAF Pro bare → Volume 500K push/pull (high-pass) casing (wire, bare) 3. Middle HS-2 gnd → Volume 500K push/pull (high-pass) casing (wire, black) 4. Bridge PAF Pro gnd → Volume 500K push/pull (high-pass) casing (wire, green) 5. Bridge PAF Pro bare → Volume 500K push/pull (high-pass) casing (wire, bare) 6. 5-way switch EP1104 T5 → Volume 500K push/pull (high-pass) casing (wire, black) 7. Volume 500K push/pull (high-pass) lug1 → Volume 500K push/pull (high-pass) casing (wire, ground) 8. Volume 500K push/pull (high-pass) casing → Output jack sleeve (wire, black) 9. Bridge ground ground → Volume 500K push/pull (high-pass) casing (wire, black) 10. Tone 500K custom taper lug2 → .022µF a (wire, bare) 11. .022µF b → Tone 500K custom taper casing (wire, bare) 12. Tone 500K custom taper casing → Volume 500K push/pull (high-pass) casing (wire, black) 13. Neck PAF Pro black → 5-way switch EP1104 T6 (wire, black) 14. Neck PAF Pro hot → 5-way switch EP1104 T2 (wire, red) 15. Middle HS-2 hot → 5-way switch EP1104 T1 (wire, red) 16. Bridge PAF Pro black → 5-way switch EP1104 T7 (wire, black) 17. Bridge PAF Pro hot → 5-way switch EP1104 T3 (wire, red) 18. 5-way switch EP1104 T4 → Volume 500K push/pull (high-pass) lug3 (wire, signal) 19. Neck PAF Pro black → Neck PAF Pro white (wire, black) 20. Bridge PAF Pro black → Bridge PAF Pro white (wire, black) 21. Volume 500K push/pull (high-pass) lug2 → Output jack tip (wire, black) 22. Volume 500K push/pull (high-pass) lug3 → Tone 500K custom taper lug1 (wire, black) 23. Volume 500K push/pull (high-pass) lug3 → 330pF a (wire, yellow) 24. 330pF b → Volume 500K push/pull (high-pass) sw2 (wire, yellow) 25. Volume 500K push/pull (high-pass) sw1 → Volume 500K push/pull (high-pass) lug2 (wire, black) ## What each position does - Position 1; p5=down: Bridge PAF Pro (both coils). Source: Engine reading of the transcribed board; matches the source legend. - Position 1; p5=up: Bridge PAF Pro (both coils). Source: Engine reading of the transcribed board; matches the source legend. - Position 2; p5=down: Middle HS-2 and Bridge PAF Pro (split to one coil) in parallel. Source: Engine reading of the transcribed board; matches the source legend. - Position 2; p5=up: Middle HS-2 and Bridge PAF Pro (split to one coil) in parallel. Source: Engine reading of the transcribed board; matches the source legend. - Position 3; p5=down: Middle HS-2. Source: Engine reading of the transcribed board; matches the source legend. - Position 3; p5=up: Middle HS-2. Source: Engine reading of the transcribed board; matches the source legend. - Position 4; p5=down: Neck PAF Pro (split to one coil) and Middle HS-2 in parallel. Source: Engine reading of the transcribed board; matches the source legend. - Position 4; p5=up: Neck PAF Pro (split to one coil) and Middle HS-2 in parallel. Source: Engine reading of the transcribed board; matches the source legend. - Position 5; p5=down: Neck PAF Pro (both coils). Source: Engine reading of the transcribed board; matches the source legend. - Position 5; p5=up: Neck PAF Pro (both coils). Source: Engine reading of the transcribed board; matches the source legend. - Custom-taper pots are treated as linear by the simulator. ## Check before plugging in ## Source Tinkercaster's own drawing of the DiMarzio diagram Steve Vai Ibanez PIA Wiring, revision 1. Not the manufacturer's artwork and not endorsed by DiMarzio. See also [all wiring diagrams]().