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 DIY : Help !! [circuit problem] « View previous topic :: View next topic » 
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Rainbow
PostPosted: Sun Nov 13, 2005 11:10 pm    Post subject: DIY : Help !! [circuit problem] Reply with quote



Joined: 08 Nov 2005
Posts: 12

Hi, i''ve started this project sometime ago, then i got a problem. problem

with the switch, the signal won't bypass. So, i hope anyone who read this

post may help me with this

the switch's schematic : [url][img=http://img267.imageshack.us/img267/1949/byaronnelson5qp.th.jpg]

the circuit's schematic : [url][img=http://img267.imageshack.us/img267/2754/distprototype5mm.th.jpg]

the actual circuit : [url][img=http://img472.imageshack.us/img472/8118/10005776vu.th.jpg][/url]

so, i combined the switch circuit to the main circuit, but then it's still not working, i've double checked everything. and now i'm so jammed until dunno wat to do

not bypassing : the signal remains distorted even though i add the switch

this project is not for identity tone seeking or wat, i just kinda feel like build it Laughing Laughing i got the schematic from the internet neway. i just build it.[/url]
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Rainbow
PostPosted: Sun Nov 13, 2005 11:17 pm    Post subject: Reply with quote



Joined: 08 Nov 2005
Posts: 12

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deadzid
PostPosted: Mon Nov 14, 2005 8:53 am    Post subject: Reply with quote

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Joined: 13 Feb 2004
Posts: 3891
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have you tested the 3PDT switch, does it work? try making a simple looper to test wheter the signal flows correctly and it switches accordingly...

by the way, what kind of efx pedal are you building? seems cool! maybe izuanhafez can help you out with this situation...
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IZZI
PostPosted: Mon Nov 14, 2005 9:26 am    Post subject: Reply with quote



Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia

i agree with deadzid.. make sure your switch is working first. For bypassing the board, make sure your middle connection of your switch goes to the TIP lugs in your jack port. Sometime people may confused between TIP lug and Sleeve lug. Good luck!
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Rainbow
PostPosted: Mon Nov 14, 2005 3:03 pm    Post subject: Reply with quote



Joined: 08 Nov 2005
Posts: 12

im building a distortion effect, i never check the switch though (bcos i

dunno how to check it) Laughing , i'll try to do some more experiments on the

switch 1st but im having exams this week

and this kind of work is really tedious [need to spend a lot of time on it !!]

Mad Mad , so , i think im gonna reply after sometimes.

check the switch 1st right. okok Very Happy Very Happy

1 more thing, the circuit was built for battery use only without adapter(DC

jack)
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Rainbow
PostPosted: Sun Nov 20, 2005 9:42 pm    Post subject: Reply with quote



Joined: 08 Nov 2005
Posts: 12

alright, exam's over.. deadzid, izuan.... how to test the switch ?? actually,

i don't actually know how to wire the switch in. i mean dunno how to add

the 3pdt switch in la... Razz

i found this too : http://www.generalguitargadgets.com/diagrams/switch_lo_3pdt_tb_battery.gif

should i try the circuit above ??, it's different from the previous one,

haihh.. well, u know, im kinda new at this...hahah

by the way, the distortion sound soooo not nice, Laughing Laughing , maybe i should try the tube screamer next time Twisted Evil Twisted Evil
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deadzid
PostPosted: Mon Nov 21, 2005 11:40 am    Post subject: Reply with quote

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actually, both diagrams by aron nelson and guitar gadgets are almost the same, except that the row for led/battery is place in different position. if you follow the diagram correctly, you should have no problem.

to test the 3PDT switch, try hooking up the switch this way:



red = grounding
blue = main signal
purple = loop

you don't have to solder em, just "tie" the wires to the lugs neatly... then connect your guitar, amp, stompbox, and test the switch on/off. hope that helps!

p/s: the purple wires from "send" to stompbox and from stompbox to "return" jacks are actually cables, not wires - sorry!
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