well, i built it, rocked it, but after i boxed it it didn't work. i used the standard wiring diagram. gone over it with a fine tooth comb. if i hook my test box up like i did before i boxed it, it works on bypass, but not when you swithch it on. i also discovered that the battery would get very hot, indicating a short circuit! the only thing i can figure is that it's wired upside down at the foot switch. there are no defining marks on it saying which way is up or down. when i ohmed it, it didn't seem to matter.
Are you getting a proper 9v to the PCB?
Quote from: madbean on December 30, 2012, 05:44:46 PM
Are you getting a proper 9v to the PCB?
no, sir. actually i'm getting nothing...
It seems likely that the DC jack is wired incorrectly. The pic is blurry so I cannot really tell. Can you take a closer shot?
Quote from: madbean on December 30, 2012, 06:12:59 PM
It seems likely that the DC jack is wired incorrectly. The pic is blurry so I cannot really tell. Can you take a closer shot?
here ya go!
mabe i'm using the wrong style input jack?
Quote from: TreeSlayer on December 30, 2012, 07:26:01 PM
mabe i'm using the wrong style input jack?
the dc jack is not wired as it should be,there is one negative,one positive to the battery swtiched off when you plug in the adapter,one positive direct to the board and the led.
probably there are other mistakes,review this for now and we'll see.
Quote from: alexradium on December 30, 2012, 07:58:57 PM
Quote from: TreeSlayer on December 30, 2012, 07:26:01 PM
mabe i'm using the wrong style input jack?
the dc jack is not wired as it should be,there is one negative,one positive to the battery swtiched off when you plug in the adapter,one positive direct to the board and the led.
probably there are other mistakes,review this for now and we'll see.
thanks, alexradium! that didn't fix it, but there's no hum or static anymore.
well, after a couple of aspirin and a cold beer, i decided to re read the instructions. didn't really find anything new, but i did discover i was following the wrong wiring diagram. i think its for pepper spray. so i corrected all of that, but i didn't know what to do with the ground between in and out. i sent it to chassis. it still only works on the clean side, but now i think i've probably hurt something in the circuit. i never smelled anything or saw any smoke, but i did get the battery hot three different times. i reckon the only thing left to do is strip it down and start huntin. oh well....
ding dangit! i gotta be close! i just can't get 9v to the board! i have battery ground to the ring, but the ring and the tip complete a circuit and when you stick a patch cord into it, the circuit is open. it just doesn't seem right.... ???
just went and bought a 9v power supply and it's a no go. at least i'm battin' 1000...
Post another pic of the re-wired DC jack, as well as the Input jack. It still may not be wired correctly.
Quote from: pryde on December 31, 2012, 03:18:52 AM
Post another pic of the re-wired DC jack, as well as the Input jack. It still may not be wired correctly.
yellow is +, blue is -, black is - to battery, red is + to battery
continued...
isn't the battery positive hooked up to center pin of dc jack?
Quote from: alexradium on December 31, 2012, 09:17:44 AM
isn't the battery positive hooked up to center pin of dc jack?
no sir. center pin goes to ground. i did swap where it was wired to the battery+ and board+. still no 9v to board.
just checked the 9v jack and it was not completing the circuit from 9v battery to the board. replaced it. now i get around .5v and when i switch it back and forth it slowly goes away.
Is the metal dc jack insulated from the enclosure in any way?
Because otherwise it looks like your 9v is shorting to earth...
Quote from: the3secondrule on December 31, 2012, 08:12:22 PM
Is the metal dc jack insulated from the enclosure in any way?
Because otherwise it looks like your 9v is shorting to earth...
well, there was only a metal washer and nut for mounting. it's a Radio Shack #274-1582, panel mount, size M, coaxial power jack.
I'd suggest trying a plastic-bodied DC jack, i think the metal is definitely why the battery was getting hot and you weren't getting 9v to the board.
Quote from: the3secondrule on December 31, 2012, 08:25:26 PM
I'd suggest trying a plastic-bodied DC jack, i think the metal is definitely why the battery was getting hot and you weren't getting 9v to the board.
i just busted open the one that was defective. it's insulated internally.the battery no longer gets hot, unless i physically ground the battery to the chassis, and that was before i changed the jack wiring.
UPDATE!!! i got it working! it's definatly the input jack! i decided to try grounding the ring again, battery -,and the LED came on. i plugged everything up and she sings like she did on the test box! i new it just didn't add up, because the ring and tip make a connection when the patch cable is out and when you push it in the connection is broken! either way, the battery never grounds! now i just have to figure out what type of input jack to get so the battery will turn off when it's unplugged and i'm in business!
Glad you got it.
Here is the type of 9v jack you need from now on:
http://www.mammothelectronics.com/4SJK-101DC-p/600-1000.htm
Here is how to wire it:
Quote from: pryde on December 31, 2012, 11:00:51 PM
Glad you got it.
Here is the type of 9v jack you need from now on:
http://www.mammothelectronics.com/4SJK-101DC-p/600-1000.htm
Here is how to wire it:
thanks a million, pryde! it was your comment on the hot battery that made me look at grounds again! i used a stereo jack and completed the circuit through the patch cord ground. i was afraid it might make noise, but it's quiet as a church mouse. thanks for the link, i'm gonna stock up on them!
Those are the jacks I always use. Had a batch of 25 smaller ones which, on paper were better, and now I'm stuck with them! So definitely buy the ones in that link! Steet clear of any others ;)
George
the 9v jack was not the problem, although i did get a bad one to start with. and i may have killed it because i had it connected wrong. it was the 1/4" input jack that was the problem. does anyone know where to get the ones that are used in the standard wiring diagram?
Nuetrik Stereo jacks (for battery switching):
http://www.mammothelectronics.com/Neutrik-NYS230-Stereo-1-4-Open-Jack-p/610-1010.htm
Nuetrik mono jacks (for output)
http://www.mammothelectronics.com/Neutrik-NYS229-Mono-1-4-Open-Jack-p/610-1011.htm
BTW: I am not affiliated with mammoth, you can get these at many online electronics retailers ;)
Quote from: pryde on December 31, 2012, 11:36:28 PM
Nuetrik Stereo jacks (for battery switching):
http://www.mammothelectronics.com/Neutrik-NYS230-Stereo-1-4-Open-Jack-p/610-1010.htm
Nuetrik mono jacks (for output)
http://www.mammothelectronics.com/Neutrik-NYS229-Mono-1-4-Open-Jack-p/610-1011.htm
BTW: I am not affiliated with mammoth, you can get these at many online electronics retailers ;)
you are da MAN! thank you so much! have a safe and Happy New Year!! ;{D
i would like to thank everyone that took the time to look at my project and point me in the right direction. to take time from your life to help a noobie, well, you just don't see it much any more. one day i hope to help each and every one that has helped me. i hope everyone has a safe and prosperous New Year! ;D
Layton