Hi guys!
Again, I have a pedal not working Lol. I built a veroboard ts808 and I used it without 3pdt (always on). It was working perfectly. Today, I received my switch so I rewired it and, no sound, on and off. When I switch it on, led is working, I hear some noise (like when the pedal is on) but no guitar signal. Any advice on this?
By the way, tip to tip continuity is working and sleeve to sleeve also. And like suppose to, sleeve to tip no continuity..
Thanks!
JP
Salut J-P ;)
I'd start by checking continuity from input tip to 3PDT, then to input of the vero.
Then same with output tip.
I'm guessing the 3PDT has something wrong in its wiring.
Pics would help (if you have time)
(http://img.tapatalk.com/d/13/09/05/y8ujutyh.jpg)
Thanks for your french ;) ill look right now for continuity!
(http://img.tapatalk.com/d/13/09/05/9ehaby7a.jpg)
In the future, you may want to use different coloured wires for your connections. It makes troubleshooting easier. Black for ground, red for power, white for signal leads etc.
On the 2nd pic, the middle-right lug. Isn't it shorting with the lug under it ?
Also, if tip-tip works, does it still work when you flip the switch ?
(http://img.tapatalk.com/d/13/09/05/ynumu6y2.jpg)
Tip to tip when on is not working, (dc unplug) but sleeve does
(http://img.tapatalk.com/d/13/09/05/u5ebydaj.jpg)
Thanks for your tips rousejeremy
You say you have no guitar signal at all ? Off or on ?
If tip-tip continuity works when switch is off, then you should at least, have bypass signal.
Are you sure your cables are ok ? I mean the instrument cables ?
No guitar signal at all, I'll take a look at my guitar cable, but it suppose to work..!
It almost sounds as if your input is grounded out completely.
Are you checking right now ? In a car ? I hope you took those pictures while at a red light ;)
I'd like to know also how you connected the lugs on the 3PDT.
If you take your 2nd picture and proceed like this :
A B C
D E F
G H I
Looks like G is connected to I (and I'm still concerned about a short between I and F)
D looks to be input tip
The rest ?
Quote from: rousejeremy on September 04, 2013, 02:55:59 PM
It almost sounds as if your input is grounded out completely.
I agree !
Im not driving hehehe, copilot :p! Going to a gig in Québec city.
(http://img.tapatalk.com/d/13/09/05/a7eme4u7.jpg)
This is my wiring!
Can you check the switch with a meter to make sure it's functioning correctly?
Did you change anything when you installed the switch? Resolder anything on the board, move ground wires around on the jacks?
On the board, nothing, but both of the ground was Going to dc, removed one to put on sleeve
Switch seems to work good
Looks like the signal wire at the input jack is connected to the sleeve instead of tip....save the sleeve terminal for the battery negative if you're using one when you box it.
Not sure what you mean Pojo, you looked at my pics?
(http://img.tapatalk.com/d/13/09/05/yse4y7uz.jpg)
is my dc input Ok? Would I have led working if not?
Pojo meant the "ring", not sleeve. The ring connection on input jack is usually reserved for the ground connection of a battery clip.
On that last pic you're showing us the output jack. Check the input jack (stereo) and make sure your "in" wire is really soldered to the tip lug, not the ring.
Yes ring, my bad...typed in a hurry!! thanks for correcting ;)
Yes it is, and Im not using battery.
(http://img.tapatalk.com/d/13/09/05/3ygu5aha.jpg)
Mannnn I must find that bug :@
The solder lug of the input jack tip isn't touching the metal between the plastic spacers of the ring connection is it? I've seen that before.
Let's recap (correct if I'm wrong) :
Switch OFF
- NO guitar signal
- Connectivity tip-tip : OK (can you double-check this please ?)
Switch ON
- NO guitar signal but humming sound
- Connectivity tip-tip : NONE
Switch looks ok...
Can you tell me where the center lug of the switch goes ? Ground of PCB ?
Quote from: Hemmel on September 04, 2013, 02:58:41 PMI'm still concerned about a short between I and F
That actually will not be a problem according to the wiring diagram - but it does look shorted to me too.
Quote from: Hemmel on September 04, 2013, 02:58:41 PM
Quote from: rousejeremy on September 04, 2013, 02:55:59 PM
It almost sounds as if your input is grounded out completely.
I agree !
Same here - check tip to ground continuity.
Ok I have found something, tip to tip switch off working, and all you said is right BUT ring to tip is also continuity.. Why
Check ground to ring. If ring also connects to ground, that's where your signal is going.
There is some solder on the ring lug, I'm guessing something was soldered there before ?
That ring to tip connectivity is quite weird...
No ring to ground continuity but with à cable in it, it surely goes to ground.. I kind of twist it and no more continuity ring-tip
Unfortunately, no amp to test it while on road
Someone can confirm that it was the problem? So I stop looking for it!
One Last question, is it normal that unplug I have no tip-tip continuity? It must be normal?
Unplug: I mean no DC connected
It's possible the continuity is cut because the switch is not on bypass position.
Also, yes, if your tip and ring were shorted, then plugging a jack would short ring and sleeve, thus sending your signal direct to ground on the input jack.
Off topic and in French : c'est où ta gig J-P ? Tu peux me répondre en privé si tu veux
C'est à Québec au Maurice Nightclub avec mon band! T'es de où toi? Moi Montréal mais mon band se promène pas mal!
Okay, now that I've found that my jack was not good, I corrected this issue.
I now have bypass mode, but when ON, my pedal isn't working..? If I touch my veroboard, half of it make noise, other side doesn't. I can I troubleshoot that? My continuity doesn't work when I touch each side of a resistor.. So how to know where is my bug?
Thanks!
JP
Here's the layout:
http://www.sabrotone.com/wp-content/uploads/2011/10/TubeScreamer.gif (http://www.sabrotone.com/wp-content/uploads/2011/10/TubeScreamer.gif)
Voltage on IC
1: 4.63V
2: 4.73V
3: 4.63V
4: 0V
5: 4.64V
6: 4.63V
7: 4.63V
8: 9.39V
My voltage on IC is good.. What should I check? (by the way, this build was working before I insert my 3PDT .. )
Input to Output doesnt have continuity when switch is ON.
THREAD SOLVED. :)
Was it the switch itself or the wiring?
Well, it was very stupid mistake.. wiring..!