Members DaveGrima Posted August 16, 2008 Members Share Posted August 16, 2008 IM trying to replace the capacitor on one of my guitars. i soldered the new one the same way the old one was on and it doesnt work. Ive tried several different capacitors and am using a new pot. Help. Thanks! Link to comment Share on other sites More sharing options...
Members bali Posted August 16, 2008 Members Share Posted August 16, 2008 It should go from the tone pot center tab to ground. Link to comment Share on other sites More sharing options...
Members DaveGrima Posted August 16, 2008 Author Members Share Posted August 16, 2008 well the old one was on the right tab to ground and it worked. Link to comment Share on other sites More sharing options...
Members bali Posted August 16, 2008 Members Share Posted August 16, 2008 Then the lead from the volume pot must have gone to the tone pot center tab which would a bit odd but would work. Go to Stewart Macdonald and look under Fre Information - Wiring Diagrams. Link to comment Share on other sites More sharing options...
Members DaveGrima Posted August 16, 2008 Author Members Share Posted August 16, 2008 Oh ok. should the ground from the cap and the pickup on the tone pot touch eachother? Is it possible to fry the tone pot with the soldering iron? Thanks Link to comment Share on other sites More sharing options...
Members bali Posted August 16, 2008 Members Share Posted August 16, 2008 All the ground leads should go to a central point, should be a physical location but at least must be the same electrical point and that should connect to the phone jack ground. Normally they tie together on a pot back but I prefer to bring them to a central ground lug or post. Be careful not to create a ground loop by daisy-chaining the ground wires, each should go directly to the central tie point. I don't like putting a lot of heat on the back of the pots, that can cause damage to the resistive element and it can cause any coating on the pot back to outgas onto the resistive element and wiper. They are often cadmium plated and/or have some manufacturing oils or chemicals left on them. All the pot bodies and switch housings or frames should be tied to ground as well. There are solder lugs available that fit around the threaded portion where it goes through the guitar body. That's more than you need for this repair job but it works well for a major overhaul or new build. Link to comment Share on other sites More sharing options...
Members WRGKMC Posted August 17, 2008 Members Share Posted August 17, 2008 The cap goes between a hot connection and the center leg of a pot, the side leg of the pot gets grounded along with the pot casing. (If this tone is a single tone to controll all pups connect it to a hot wire coming into the guitar. If you are using 2 tones one for each pip, connect it to the center leg of the volume pot). You can also wire a hot lead to the center leg, Have the cap connect to a side leg and ground along with the casing grounded. I prefer the first method cause it tends to have less hum. Basically what youre doing ios grounding the high FQ with the cal and using the pot as a valve to adjust how much bleed you want. Most caps uses for this are between .01 and .05uf. Link to comment Share on other sites More sharing options...
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