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Sjaltenb
Copper Member
USA
16 Posts |
 Posted - 06/10/2008 : 06:08:13
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Hey yall. I have posted a few times...trying to get this figured out, no one has had any answers so far.
I put the CS2 in a large multi effects board that I build. It has a common 9V power supply, so i just gutted the CS2 and put it in the board and used the 9V power.
At first it worked perfectly, no problems, maybe sounded even better. Then what happened is a small piece of wire shorted out the whole board, and my power supply (temporarily a One Spot) kept coming on/off rapidly becuase I have been told it does this if it suspects a short or something.
From that point on, once the problem was resolved, it has only worked very briefly and now not at all. Pleaes help!!! I must have fried something...what can i check??? |
Edited by - Sjaltenb on 01/14/2009 00:07:45 |
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bossFan
Bronze Member
Portugal
97 Posts |
Posted - 06/10/2008 : 11:41:54
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Hello!!
Go to http://www.godiksennet.com/default.asp?main=Schematics for the CS-2 schematic.
Connect the pedal to the adaptor, connect the input jack and mesure the 9V(in those points you see an arrow pointing up)Check also the output signal- does the LED lights on?
Any questions feel free to ask!! |
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Sjaltenb
Copper Member
USA
16 Posts |
Posted - 06/11/2008 : 00:42:56
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| ok so what do i look for when i do that? just the about of V i get at each point and report it back to here? |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 06/11/2008 : 01:37:49
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Couple of quick questions...
1) does the pedal work with a known good battery?
2) does the light come on?
3) does the signal get through the pedal with the effect turned off?
Can you post photos of the circuit board (front and back)?
Regards,
Laurie. |
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bossFan
Bronze Member
Portugal
97 Posts |
Posted - 06/11/2008 : 04:53:22
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quote:
Originally posted by Sjaltenb
ok so what do i look for when i do that? just the about of V i get at each point and report it back to here?
Hello!!
Do you have 9V on those points?
Does the light goes on?
I these are OK you must check if the input(guitar)signal comes out.
If not OK, check for burned copper lines on the circuit board.
Good luck. |
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Sjaltenb
Copper Member
USA
16 Posts |
Posted - 06/11/2008 : 07:36:12
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Well, I can say this from my tests earlier (the pedal is in no way hooked up right now)- I have not done the multimeter tests....
-DOes not work with battery
-nothing visibly wrong (no burned up parts etc)
-LED does NOT light up
-I have already true bypassed the pedal with a 3pdt switch using the input/output so im not sure about hte passing the signal...
Should I completely reassemble the pedal into its original enclsoure/wiring before moving on?
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 06/11/2008 : 14:01:58
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quote:
Originally posted by Sjaltenb
Well, I can say this from my tests earlier (the pedal is in no way hooked up right now)- I have not done the multimeter tests....
-DOes not work with battery
-nothing visibly wrong (no burned up parts etc)
-LED does NOT light up
-I have already true bypassed the pedal with a 3pdt switch using the input/output so im not sure about hte passing the signal...
Should I completely reassemble the pedal into its original enclsoure/wiring before moving on?
No need to reassemble it. If there is no signal at all, the first components to check are:
- R38 and D2 ... are they open circuit?
- D1, C11 ... are they short circuit?
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Sjaltenb
Copper Member
USA
16 Posts |
Posted - 06/11/2008 : 15:14:51
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hey!
well when i touch the DMM to eithe side of the listed component on continuity mode (no power to pedal) they all tone and say SHRT
is this what your looking for?
sorry i dont know much about the really technical aspect of these things!@!! help!! thanks so much! |
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stinkfoot
Silver Member
Sweden
181 Posts |
Posted - 06/14/2008 : 02:07:52
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R38 and D2 are the ACA components (limiting the voltage from the adapter jack), and both should be replaced with jumper wire. When you connect the signal grounds to other pedals, and hook up the power lines through a daisy chain, they are shorted anyway, so they might as well go.
D1 is the polarity protection diode, and C11 is the main filter capacitor. If you have a short in either or both (which can happen if something goes wrong with the power supply), the pedal will not work at all. Replace both, and you should be good to go. A 1N4001 or similar should work fine for D1, while C11 is a polarized 100uF/16 volt electrolyte (watch the polarity of the cap, when installing the new one).
/Andreas |
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Sjaltenb
Copper Member
USA
16 Posts |
Posted - 01/13/2009 : 20:50:21
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hello all... i am resurrecting this topic.
its been a long time, i had to replace Q7 because i had removed it thinking it was the flip flop, so i finally ordered a replacement and put it back in. (at the time i was getting no signal, at all, period.)
well then i wired it up and did the same damn thing! i accidently reversed the power ground and +. i get a signal passing through when the pedal is disengaged, but no signal when engaged, completlety silent. im going to replace the C11 and D1 again and go from there... i just hope i havent fried the IC... |
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Sjaltenb
Copper Member
USA
16 Posts |
Posted - 01/14/2009 : 00:07:10
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FIXED!
Love this thing... |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 01/14/2009 : 14:27:33
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Fantastic! Another one saved  |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 01/14/2009 : 14:58:04
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Hi Sjaltenb
It's really good to hear that you repaired your CS-2
How does it sound? as sometimes some of the interstage caps can get a little dry, & kill the tone of the pedal.
This happened to my first CS-2, It sounded really dull.
But like yours, it's now a happy little blue pedal.
Regards Dr. Bob |
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Sjaltenb
Copper Member
USA
16 Posts |
Posted - 01/26/2009 : 00:30:02
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Hello! Sorry I forgot about this post.
The CS-2 Sounds fantastic as it always has. I really love this pedal!
I fixed the CS-2, changed the IC's in two GE-7s to R4559s - not sure if it helped noise or not, fixed one of the GE-7s (diode) modded the all 4 pedals for "always on" by unsoldering the collector of one of the flip flops transistors.
my project is coming along nicely, and I am learning a LOT! Thanks for everyone's help! |
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Topic |
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My CS2 will not turn on anymore ***FIXED!**
