Melancon Forum FAQ Page
Here are the jpgs of the truss rods. The 1st trussrod type was used on about the first 300 guitars. You can tell the difference between this rod and the next rod (we used these 2nd trussrod versions for only a short time, maybe 50 guitars) by the length of the route for the adjustment. The 1st truss rods have a shorter length route of about 1/2" compared to the 2nd rods having a route of about 3/4". The wrenches are different. The 1st trussrod wrench is 2 3/16" total length and the 2nd trussrod wrench is 4 1/8". The new truss rod looks completely different from the first two rods. The rod we are using now is a better, more stable, rod than the first two. We are constantly trying to build a better guitar and the changes in what trussrods are being used are an example of those changes. I hope this clears up any confusion about the trussrods. The first truss rod (shown in the photos below) is the only one that works counterclockwise (looking down the headstock) to tighten. The 2nd and 3rd versions should be tightened like other trussrods (clockwise to tighten). Tightening the truss rod straightens an up-bow and reduces the degree of relief. Loosening the truss rod allows back-bowed or flat necks to pull forward and add relief. It is strongly advised that you make any corrections in neck relief by only turning the rod about 1/8th to 1/4 of a turn, then wait for a couple of days for the neck to adjust. Repeat if necessary.
| 1st Trussrod
(note the shorter route!) This one should be turned counter clockwise looking down the headstock in order to tighten. |
2nd Trussrod (note
the longer route!) This one should be turned clockwise looking down the headstock to tighten. |
3rd
Trussrod |
 |
 |
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The "dip'' switch or mini toggle does a series/split/parallel to the pickups. The pickups do vary on the P-90 Artist and the P-90 Pro. On the P-90 Artist the pickups are the stacked Duncans and in the up position the coils are in Series. That produces a humbucker type of tone. In the middle position the coils are split and that produces a true P-90 super mega hum (because it is a big single coil with lots of windings) in your face tone. In the down position it puts the coils in parallel and gives the guitar an almost Tele-ish type of tone.
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