G&L tech resources: Wiring harnesses


Not all 3-pickup ASAT models are discussed here. Since the ASAT ‘Classic III’ and ASAT Classic ‘S’ (Alnico) are more closely related to the ASAT Classic, they are included in the previous section. That still leaves other models mainly those with either S-500/Skyhawk or Jumbo MFD pickups. When the ASAT III was introduced in 1987, it had the same wiring harness as the Broadcaster as seen on this example from early-1989. The CTS 250kΩ Audio Taper volume potentiometer has a 200pF ceramic treble bleed capacitor and the CTS 250kΩ Audio Taper tone pot has a 100,000pF (.1µF) treble bleed cap between the signal and wiper lugs and in series with a 6.8kΩ resistor to ground. But only about 3 months later this ASAT III Signature HSS was built, clearly with the ASAT Classic harness present. The volume control is identical as above, but the 250kΩ Audio Taper tone control now only has a 22,000pF (.022µF) treble bleed cap. This is more evidence G&L had standardized by then on a single harness to be used on an ASAT (Classic) control panel simplifying production. In 1998, Paul Gagon drew up the block diagram for this wiring harness, accessible here on the archived G&L website and included below for convenience, which allegedly is valid for all 3-pickup ASAT models. Note the tone pot in the diagram is 500kΩ and the volume pot has no treble bleed cap. This ASAT S-3 is from that same year but with a 200pF ceramic treble bleed cap on the (CTS) 250kΩ Audio Taper volume pot and a 250kΩ Audio Taper tone pot with a 22,000pF (.022µF) treble bleed cap, it proves the diagram to be incorrect. This 1996 BBE-era ASAT III and the ‘www.guitarsbyleo.com’ Limited Edition (GbL LE) from 1999 have an identical wiring harness. Tim Page’s ASAT Trinity Special Edition from 2006 (see either #11 or #24) includes the next step in the evolution of a 3-pickup model in the use of a 250kΩ Audio Taper push-pull volume pot, still with 200pF ceramic treble bleed cap, to allow additional pickup combination. Here, the tone pot is also 250kΩ Audio Taper with the usual 22,000pF (.022µF) treble bleed cap soldered between the signal and wiper lugs.