So I'm building a guitar, putting an effect pedal in the body, the pedal has true bypass. since I'm already crammed for space, id like to get rid of the jacks (1/4) and just hardwire the in/out. not sure how to go about this since the jacks have three solder points, and my leads will only be pairs. any help is appreciated
If you get rid of the bypass, the effect will be on all the time. Is that what you want? Or do you want to change the stompswitch to a smaller switch?
Both negative leads from the jacks go to ground, positive lead of the input connects to the positive lead of the guitar, and the output jack is the final output.
I'm keeping the switch, basically i just want to get rid of the 1/4" in/out jacks on the pedal and solder the wires coming from 3 way switch directly to the circuit board, same goes for the wires coming from output jack on guitar. I just know that when using the pedal, if nothings plugged into the input, nothings happening. wasn't sure how to mimic this without the little contraption in the jacks.
Oh and it is a 3pdt switch, so i can have an led.
Also, not sure if this makes a difference, the pedal had stereo outs option, mono when only ones in use, I'm getting rid of the second(stereo R) all together. I'm fine with mono.
so would i have to put a jumper between the negative and mystery third posts on the circuit board or anything?
Quote from: scstowaway on January 28, 2015, 10:27:14 PM
so would i have to put a jumper between the negative and mystery third posts on the circuit board or anything?
Mystery third post? I have no idea what you mean, but I think pictures would help more than anything.
Pedals usually get powered up when a mono plug is inserted into a stereo input jack. This happens because the negative terminal on the battery is connected to the ring of the input jack, and the circuit ground is connected to the sleeve. When a mono cable is inserted into the jack, a connection between battery and ground is made and current can flow. In order to replicate this in your guitar, you'll need a stereo input jack.
The new input to the stompswitch will be the output of your volume knob. The circuit input/output and true bypass connections remain unchanged. The output of the stompswitch gets connected to the tip of the input jack. The negative terminal on the battery gets connected to the ring of the input jack. The circuit ground gets connected to the sleeve of the input jack, along with the ground from the pickup circuitry.
PBE6, Im a little confused about the input of the pedal being connected to the volume control. I just picture the signal flow as if it were a pedal on the floor, signal from guitar output goes into pedal, and if I'm not mistaken, i thought my guitars output jack was connected to the toggle switch..? my plan was just to wire the guitar as normal, but instead of soldering my output wires to the output jack, id wire them to the input of the pedal, then out the pedal to the jack. illegal a pic up first thing in the morn, maybe that'll help
Yes, whatever is connected to the tip of the guitar's output jack right now gets connected to the tip of the pedal's input jack. It's usually the volume out, but not necessarily.
The wire attached to the tip of the pedal's output jack connects to the tip of the guitar's output jack. The negative battery terminal connects to the ring of the guitar's output jack. The pedal ground and guitar ground connect to the sleeve of the guitar's output jack.
pbe6, thank you very much! ok, so at first your last suggestion threw me for a loop, but after tinkering around tall started to make sense. i followed your steps, and it got me close. true bypass is working, powers off when guitar is unplugged. but when pedal is engaged, theres very little effect if any, pretty much only heard when a sustained note turns to feedback. my guitar has 2 hums, 2 vol. and a 3 way toggle. so hot from toggle and ground go to pedal input, along with ring from guitars stereo input jack to battery neg, then hot from pedal to guitar jack tip, and ground from pedal to guitar jack sleeve. any ideas?? The only thing i could think of that might cause any issue would be the battery negative from jack to input, seeing as thats the only thing connected to the guitar jack that hasn't run through the pedal... not sure if I'm making any sense
This is what I meant, does your wiring match up with this?
(http://tapatalk.imageshack.com/v2/15/02/06/b4640f8c548a6a268997034cc26a623b.jpg)
Sorry about the hand drawing..I've also left out the LED, but according to your post that should be fine.
Double check to make sure the ground connections on your guitar and your effect are all connected, and preferably directly connected to the same spot (either the back of a pot or right on the guitar output sleeve).
Which effect are you connecting?
Looks like you guys have this licked. I'll throw in my drawing that I've used on a couple of guitars.
Edit-Cleaned up drawing.
(http://i1160.photobucket.com/albums/q485/jdansti/21907241-D1EB-45A3-AC42-7AA9ED2B9636.jpg)
Edit: BTW-you might want to think about using a DPDT push-pull pot/switch in place of a 3PDT switch. It's cleaner and you'll know if the effect is on or off by looking at whether the knob is in or out. SmallBear.com has a lot of values. One should match your current pot value.
(http://i1160.photobucket.com/albums/q485/jdansti/7258AEA2-E73C-4F3E-9432-618DBD4FF94A.jpg)
oh man,you guys are far more advanced than myself with this stuff.i don't know whats going on in the switch (3pdt). on the circuit board, i removed the 1/4 jacks, they were each connected by 3 solder points. on the input, I've identified the tip, sleeve and battery neg. not sure what the 3rd solder point on the output does (i identified the hot and ground). I've included some crappy pics and awful illustrations for you to laugh at the pics are after removing the two out jacks of the pedal, input still there(but gone now) oh, and its a delay pedal, delta labs dd1, craigslist, $20. This is my third guitar build, just wanted to add a little flavor . /woodwork/guitars/delaychip.jpg
/woodwork/guitars/delaychip3.jpg
/woodwork/guitars/delaychip4.jpg
and one of the front just for kicks
/woodwork/guitars/mytele2.jpg
Quote from: scstowaway on February 07, 2015, 04:06:19 AM
oh man,you guys are far more advanced than myself with this stuff.i don't know whats going on in the switch (3pdt). on the circuit board, i removed the 1/4 jacks, they were each connected by 3 solder points. on the input, I've identified the tip, sleeve and battery neg. not sure what the 3rd solder point on the output does (i identified the hot and ground). I've included some crappy pics and awful illustrations for you to laugh at the pics are after removing the two out jacks of the pedal, input still there(but gone now) oh, and its a delay pedal, delta labs dd1, craigslist, $20. This is my third guitar build, just wanted to add a little flavor . /woodwork/guitars/delaychip.jpg
/woodwork/guitars/delaychip3.jpg
/woodwork/guitars/delaychip4.jpg
and one of the front just for kicks
/woodwork/guitars/mytele2.jpg
soooo, doesn't look like my pics are working....
Quote from: scstowaway on February 07, 2015, 04:17:50 AM
soooo, doesn't look like my pics are working....
You need a
complete URL for your picture(s). Then put this URL in between [
img] and [/img] tags (use the (http://www.diystompboxes.com/smfforum/Themes/diytheme/images/bbc/img.gif) button).
(http://i60.tinypic.com/wafytx.jpg)
(http://i58.tinypic.com/t0t5co.jpg)
(http://i62.tinypic.com/2ez4v2b.jpg)
(http://i59.tinypic.com/10freog.jpg)
also, not sure if its of any significance, but when i unplug the battery while the effect is engaged, it kills the signal completely. but when i hit the switch (turning the effect off) while battery is still disconnected, the signal comes back. Just didn't know if that was a sign of a bad switch. thats another thing, I'm beginning to wonder if may have messed up the electronics in the midst of all this tinkering
Quote from: scstowaway on February 07, 2015, 02:16:16 PM
also, not sure if its of any significance, but when i unplug the battery while the effect is engaged, it kills the signal completely. but when i hit the switch (turning the effect off) while battery is still disconnected, the signal comes back. Just didn't know if that was a sign of a bad switch. thats another thing, I'm beginning to wonder if may have messed up the electronics in the midst of all this tinkering
That's how effects work. If the effect is engaged and you cut the power, you get no signal. But as long as it's true bypass you can still get clean signal through it when it's unplugged.
Now I see what you're trying to do.
What happens when you hold a temporary jumper wire across the input jack sleeve and ring PCB pads? Does the circuit turn on when you connect it and off when you disconnect it? If it does, then this should work:
(http://i1160.photobucket.com/albums/q485/jdansti/8204352B-2803-4CEB-BA5C-8AFD5F4AB03C.jpg)
The mystery pad on the output could be an unused ring connection or a blind terminal to mechanically support the jack. I guess it could also tell the board that you are in mono mode if the jack is a TRS. If this is the case, try a jumper between the mystery pad and ground. If this works, permanently ground it.
i got it!! details to come...
ok, in reply to jd, yes, what u added to my photo was exactly how i had it, thats what was trying to get across. I then tried your jumper suggestions, no luck there. but keeping in the spirit of things, i continued jumping, all over the place. then decided to try the second output, and bam! only it was only a wet signal. but it was hope, so i pushed on. then i tried jumping the 2 outputs hots. i was on to something. in the end, everything was hooked up right since pb's help, only thing missing was a jumper between the 2nd outputs hot and the second outputs "mystery post" thank you all for your wisdom and generosity to share that wisdom, and for seeing through my awful lingo and artwork. now, about this 3pdt stomp switch, i hate it. but id like to keep the existing led. a toggle perhaps?
Glad everything worked out! That is a sweet looking build.
You can find 3PDT toggle switches on eBay for less than $2 with free shipping, one of those would be an easy direct replacement option.
Glad you got it going!
Regarding the switch, you could figure out which row of outer switch contacts need to be connected to the center common contacts. Then remove the switch and install jumpers to hardwire those connections. After that, install any kind of switch you wish for the bypass switch as shown in my earlier drawing.
JD, can u explain that in a little more detail?
Damn that's a nice tele
Quote from: scstowaway on February 15, 2015, 07:39:30 PM
JD, can u explain that in a little more detail?
Sure. Every time you hit the foot switch, you alternate between connections A and B as shown below.
(http://i1160.photobucket.com/albums/q485/jdansti/38809E07-67A5-45CA-A1F9-D100E0F620FF.jpg)
Figure out whether position A or B routes the signal through the effect using your meter. Carefully remove the switch and then solder jumpers across the pads (A or B) to hard wire the board to always be "on". After that, route the signal from your guitar controls through an offboard switch (3PDT if you want an LED indicator). The new switch either routes the signal to your effect or directly to the guitar's output jack as shown below.
(http://i1160.photobucket.com/albums/q485/jdansti/C767AD59-5F96-4806-9C42-D84A662E3673.jpg)
Edit: I corrected the first drawing which mistakenly had the input ring associated with the output jack. I'm not 100% sure if my drawing works as-is with nothing connected to the ring pad on the PCB.
Ok, i see what your saying. Im assuming that that would raise an issue with the existing led? seeing as its hardwired into the upper chip where the controls are. and since the hole is already drilled, I'm wondering if that might be too much of a hassle. Kinda wish id thought of that earlier, wiring the pedal always on and making a switch to go from pedal or straight to guitar jack is a great idea. definitely gonna keep that in mind. I just got my new 3pdt toggle switch in the mail today, guess ill just do a swap out. I appreciate you takin the time to help me out Jd. And thank you MTH, I'm happy with it... got a duncan classic '57 for the bridge, sounds pretty nice too!
No problem! Have fun with it!
I put up a short vid on youtube in case you guys wanted to hear the finished product. Ill attempt to attach a link, if it doesn't work, i guess just search youtube for homemade telecaster with built in effect.
^scott, post your link
between the youtube brackets
e,g select youtube button from above.. :)
found it.. ;)
ha ha, i know , even with the little button i still screwed it up, thanks DA