MORLEY GEORGE LYNCH DRAGON WAH - procuro esquema e ajuda com LDR !

[mzorrer]

Estou um pedal MORLEY GEORGE LYNCH DRAGON WAH limited edition, não é o versão II é o primeiro, série limitada , não encontrei o esquema elétrico no site do fabricante !
Gostei muito do pedal, mas o som no grave tem pouco curso em comparação com um crybaby , existe alguma possibilidade em ajustar o LDR ou alguma outra modificação para que eu obtenha um pouco mais de extensão o grave?
Pois o pedal quando sobe se desliga sozinho, mas tem bastante sobra de cursor ainda quando o pedal não esta ativado, por isso pensei em recortar a lamina que trabalha junto com o LDR !
Quero analisar bem antes de fazer alguma merda !

[ApAcHee*]

Você poderia tirar bastantes fotos internas da placa e dos componentes para que possamos ajudar e também quem sabe, clonar ele! 

Abraço

[mzorrer]

OK, vou fazer isso, pois também fiquei com vontade de clonar o meu próprio...., me parece um pedal fácil e talvez barato pois não tem indutor !!!!!!!! tem 2 CIs com 16pinos cada
Mensagem MescladaAchei a explicação !


Electro-Optical Circuitry Basics

Electro-Optical Circuitry functions by a Light Emitting Diode (LED) shining light through a Shutter and onto a Light Dependent Resistor (LDR – sometime referred to as a photocell). As the pedal is moved forward more light from the LED is allowed to shine through an opening in the shutter onto the LDR allowing the pedal to function electronically.

Wah Adjustment

The two components that control the wah are an LED and an LDR. On the CLW, PWA-II, PWV-II, PDW-II, and PBA-2 they are labeled L4 and LDR3. On the VAI-1, VAI-2 and MARK 1 they are marked L2 and LDR2. On the PWO and PWOV they are marked L3 and LDR3. Basically, those
components are moved in relation to one another (and to the shutter opening) to achieve a desired setting. The more direct light from the LED hitting the face of the LDR, the higher the wah frequency. For a more mid rangy wah tone point the two components slightly away from one
another. Each time the components are moved the pedal should be sound tested. Make sure to turn the pedal over to shield out the room light. Otherwise the pedal will give a false reading due to the room lighting. Once you understand this basic maneuver you can experiment with different settings until satisfied.

“Secret” Wah Adjustment

On the VAI-1, VAI-2, MARK 1, PWO and PWOV you can quickly and easily adjust the wah tone by tightening or loosening the nut that holds the inductor in place. The inductor is a round component (about the diameter of a quarter) located just below the output jack. Tightening or loosening the nut changes the tension on the wire windings and ultimately makes the wah brighter or more mid-ranged. You’ll notice a small amount of glue on the nut, don’t worry; this is a special glue that will stay on and hold the position of the nut.

NOTE: Just don’t tighten down on this nut with any real force or you may crack the ceramic
Quote:

housing. A small amount of tension can go a long way in terms of wah tone.

Trip Point Adjustment

The Trip Point is the point at which our switchless pedals go in and out off Wah mode. Our switchless pedals use optics to turn on/off the wah. The optics that controls our switchless pedals on/off are labeled L1 (red LED), and LDR1 (photocell). You’ll notice that the shutter between them has a large opening that simply allows light to shine across from L1 to LDR1 when the pedal is moved more than 1/16” of an inch. When your foot is removed, the pedal springs back into the “toe up” position. The shutter then blocks the light from shining across which in turn makes the pedal go to bypass.

To test and set the Trip Point, place a nickel under each of the rubber bump-ons under the heel side of the foot treadle. Ideally, the Wah should be right on the verge of Wah mode and bypass with the nickels inserted (the external Wah Indicator LED should turn on/off). If the Wah is always on OR not on at all, you will need to adjust the Trip Point.
To adjust the Trip Point:

NOTE: All adjustments made are directionally referenced to the pedal on a tabletop upside down with the heel end of the pedal towards you.

The best way to make an adjustment is to move the physical location of L1 LED. If your pedal does not go into bypass unless you apply pressure to the heel end of the foot-pedal, you’ll need to push L1 towards the tabletop slightly*. If your pedal takes too much of a movement before the wah engages, you’ll need to move L1 ytoward the ceiling*.

*A small movement can make a large change so don’t move it too much.
Each time you make an adjustment, flip the pedal over (make sure the electronics of the pedal are in darkness or it will not work correctly), hook up and power up the pedal and test the Trip Point. Continue to adjust as needed.

[Victor Nery]

Saudações,

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