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Post by humanbn on Dec 17, 2010 13:11:35 GMT -5
What would go wrong with a wah pedal? Well, I don't know. But here's what it's doing. When engaged all of the high end frequencies are stripped from the signal. Very slight wah effect when sweeping the pedal but almost unnoticeable. I put in a new battery and that didn't help much. It was working just fine the last time I plugged 'er in; which wasn't long ago at all. Any ideas? Need more info just ask, you'll have it.
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Post by ashcatlt on Dec 17, 2010 13:25:37 GMT -5
You haven't told us what kind of wah pedal it is. That might help diagnosis.
If it's a newer model, the first and easiest thing to check (after the battery) is the pin header that connects all the off-board components to the board itself. Make sure it's seated properly. Maybe unplug it and plug it back in.
I'm afraid it can't be that easy, though.
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Post by humanbn on Dec 17, 2010 13:29:59 GMT -5
It's a ripped up crybaby. Modded it about 2 years ago. No problems tell today. Didn't tell you what it is because most of the original wiring is not longer there. I wish I had a way to test the inductor. Any ideas on how to do that with a standard multimeter?
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Post by ashcatlt on Dec 17, 2010 13:39:36 GMT -5
You can test the DC resistance through it. You'd have to check the datasheet for your inductor to figure out what it should be, but look to see if it's way too low or wide open. The only thing that can have gone wrong with an inductor would be either it shorted closed (I don't think that's likely) or broken open.
Course, you have to disconnect at least one end from the rest of the circuit first. While you're in there, check all of your solder joints. Maybe re-flow all the joints just to make sure.
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Post by humanbn on Dec 17, 2010 13:43:59 GMT -5
Solder joints all appear to be sound. And I forgot that I left my multimeter at my Father's house. Shoot! I guess I'll have to postpone any further analysis and correspondence until I can get that back. Thanks, Dude. I'll be back in a day or so.
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Post by sumgai on Dec 17, 2010 14:43:21 GMT -5
bean,
The gear on the pot shaft is loose......
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Post by humanbn on Dec 17, 2010 14:48:14 GMT -5
No, I checked the pot shaft. It's working fine.
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Post by gfxbss on Dec 18, 2010 0:07:32 GMT -5
If I had to hazard a guess on the info given, I would say that the electrolytic cap on one side of the inductor needs replaced.....
Tyler
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bobbarcus
Rookie Solder Flinger
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Post by bobbarcus on Dec 19, 2010 16:34:49 GMT -5
I would get a magnifier glass and Look at all the "Mods" Look at the solder joints I have missed one before and it was hanging by a small cold joint bit of solder,battery wires too.... and 2x double check your battery  |
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bobbarcus
Rookie Solder Flinger
Posts: 4
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Post by bobbarcus on Dec 19, 2010 16:38:03 GMT -5
I would get a magnifier glass and Look at all the "Mods" Look at the solder joints I have missed one before and it was hanging by a small cold joint bit of solder,battery wires too.... and 2x double check your battery That too could be the Inductor or the 4.7 cap Check out wahs |
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Post by humanbn on Dec 29, 2010 12:41:48 GMT -5
Dig this! The day prior to my wah pedal going bad my Brother, unknown to me, orders an Area 51 drop in to give me for Christmas. Whoa! I haven't even touch my old board since getting this one. Man, I need to get motivated in more then one direction. Ah, maybe it was just meant to be this way though.
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