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Boss_8
Copper Member
USA
44 Posts |
 Posted - 02/12/2010 : 03:58:24
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Hello,
My name is Doug and I just happened upon this forum. This forum has some great material! I'm just getting into guitar and I'm mad about pedals. I've got about 8 Boss pedals now and I've put the Monte Allums mod on my DS-1, MT-2, and CS-3. I don't know how much better it sounds, it was more just the fun of learning a little bit about electronics. Well, a friend of mine has a tonepad CE-2 that is assembled and it doesn't work. Would some of the more experienced be able to help out? If so, what do you need, pics? Anything would help.
Thanks,
Doug |
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Pedal Dan
Silver Member
USA
419 Posts |
Posted - 02/12/2010 : 04:23:38
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Yo Boss 8, welcome to the forum from Phillytown! Pix will def help, and I can attest that there are some of the most helpful and informative cats on the Internet right here! That's why I joined!!!  |
Edited by - Pedal Dan on 02/12/2010 04:24:41 |
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zerksies
Double Platinum Member
USA
3406 Posts |
Posted - 02/12/2010 : 18:29:47
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ranjam
Bronze Member
Canada
82 Posts |
Posted - 02/13/2010 : 04:41:47
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To try and repair a pedal that you at least know worked once in its exsistance is tough enough, but to 'repair' a pedal that has never worked at all is like nailing Jell-O to a tree.
The best you can hope for is to luck out and find a problem with divide-and-conquer techniques. What else can you do? If you have access to an oscillator and an oscilloscope, you can blindly fumble through it with some hope. Trace your input; pin #3 of the input buffer, out at pin #1. Still there? Go to pin #1 of the THAT chip. Still there? Check the output at pin #8. You get the idea. Unfortunately, you have to do three times the work, because you have no idea where a mistake was made. The pedal has never worked, so literally anything can be wrong. |
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Boss_8
Copper Member
USA
44 Posts |
Posted - 02/13/2010 : 22:02:25
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quote:
Originally posted by ranjam
To try and repair a pedal that you at least know worked once in its exsistance is tough enough, but to 'repair' a pedal that has never worked at all is like nailing Jell-O to a tree.
The best you can hope for is to luck out and find a problem with divide-and-conquer techniques. What else can you do? If you have access to an oscillator and an oscilloscope, you can blindly fumble through it with some hope. Trace your input; pin #3 of the input buffer, out at pin #1. Still there? Go to pin #1 of the THAT chip. Still there? Check the output at pin #8. You get the idea. Unfortunately, you have to do three times the work, because you have no idea where a mistake was made. The pedal has never worked, so literally anything can be wrong.
Ranjam,
I saw another thread that detailed how to make your own electronic test probe. I got the jist that they were plugging a guitar into the pedal and the test probe plugged into the amp input. Then you touched the proper pins on the op amps to see if the signal was following through the circuit. Does that sound like a plan using the pins you mentioned in your post?
Thanks,
Doug |
Edited by - Boss_8 on 02/13/2010 22:03:35 |
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Boss_8
Copper Member
USA
44 Posts |
Posted - 02/13/2010 : 22:30:09
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quote:
Originally posted by Pedal Dan
Yo Boss 8, welcome to the forum from Phillytown! Pix will def help, and I can attest that there are some of the most helpful and informative cats on the Internet right here! That's why I joined!!!
Pedal Dan,
Do you have to host the pics somewhere else and link them to the post for them to show up in the post?
Thanks |
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Boss_8
Copper Member
USA
44 Posts |
Posted - 02/13/2010 : 22:31:11
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quote:
Originally posted by zerksies
Welcome to the forum
Thanks Zerksies |
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ranjam
Bronze Member
Canada
82 Posts |
Posted - 02/14/2010 : 04:27:49
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quote:
Originally posted by Boss_8
I saw another thread that detailed how to make your own electronic test probe. I got the jist that they were plugging a guitar into the pedal and the test probe plugged into the amp input. Then you touched the proper pins on the op amps to see if the signal was following through the circuit. Does that sound like a plan using the pins you mentioned in your post?
Thanks,
Doug
Sure, if you don't have a signal generator and an osciloscope, then this would work. It's basically a signal tracer, and was used by old-time radio repairmen years ago. Try it, and it may help more than you'd imagine. |
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Troubleshooting help
