Author Topic: Freekout  (Read 270 times)

chongmagic

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Freekout
« on: December 03, 2018, 08:38:06 PM »

I just finished the Freekout and the sound is very low when the effect is activated. From the demos this doesn't seem to be the way it should react. I tried to find the voltages listed but can't seem to find any.

sonnyboy27

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Re: Freekout
« Reply #1 on: December 04, 2018, 08:42:54 AM »
Is it still low when you move the blend knob all the way dry?

chongmagic

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Re: Freekout
« Reply #2 on: December 04, 2018, 09:04:40 AM »
Is it still low when you move the blend knob all the way dry?

Yes, and when I disengage the effect if the amp is up it is about 10 times louder. I think I may have fried the AD633 chip, when I was testing the voltage of the chip there was a spark when I put the positive probe on pin 5. I found that in my infinite wisdom I had forgotten to solder one leg of the caps which I think caused the issue. I soldered it and it no longer sparked, but I am guess it probably fried the chip. I am going to try another one, thankfully I have an extra.

chongmagic

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Re: Freekout
« Reply #3 on: December 04, 2018, 08:41:07 PM »

Now the pedal will just make a noise that revs up and down when the fine and shift pots are turned. I put in both of the AD633 chips and it does the same thing. I will have to get some voltages off the chips. I am guessing when the cap wasn't completely soldered in and it sparked it might have fried more than I thought.

madbean

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Re: Freekout
« Reply #4 on: December 04, 2018, 09:23:04 PM »
Post pics, post voltages. There is nothing anyone can do without some basic diagnostic info to go by.
I own madbeanpedals (duh). I am part owner of Function F(X).

chongmagic

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Re: Freekout
« Reply #5 on: December 04, 2018, 09:36:57 PM »
Post pics, post voltages. There is nothing anyone can do without some basic diagnostic info to go by.
I will post some voltages and pics tomorrow, was just wondering if there were any voltages posted anywhere like some of the other build guides have?

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madbean

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Re: Freekout
« Reply #6 on: December 04, 2018, 09:49:33 PM »
Post pics, post voltages. There is nothing anyone can do without some basic diagnostic info to go by.
I will post some voltages and pics tomorrow, was just wondering if there were any voltages posted anywhere like some of the other build guides have?

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I know I have some. I don't know why they are not in the doc. You work on your side and I will work on mine. We'll get it sorted.
I own madbeanpedals (duh). I am part owner of Function F(X).

chongmagic

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Re: Freekout
« Reply #7 on: December 04, 2018, 09:52:08 PM »
Will do thank you!

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chongmagic

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Re: Freekout
« Reply #8 on: December 05, 2018, 04:28:23 PM »
Here are the pics of the build and a sheet with the voltages.

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chongmagic

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Re: Freekout
« Reply #9 on: December 05, 2018, 04:46:54 PM »
Here is a better pic of the back.

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chongmagic

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Re: Freekout
« Reply #10 on: December 06, 2018, 09:59:28 AM »
And here is a better view of the IC voltages.

chongmagic

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Re: Freekout
« Reply #11 on: December 07, 2018, 07:35:00 AM »

These voltages were taken with all the pots full CCW. I tried the pedal again last night, and all I get is a low or high oscillation noise that changes as the shift and fine pots are turned. The blend knob does nothing or is very minute in what it does.

Bypass works fine, LED comes on fine. I am not sure if it is the ICL8038 I procured or not. All I could find were some on ebay. All the other ICs were from Mouser or Smallbear.

chongmagic

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Re: Freekout
« Reply #12 on: December 07, 2018, 10:09:00 PM »
bump?

madbean

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Re: Freekout
« Reply #13 on: December 11, 2018, 05:20:50 PM »
Some of your voltages are not consistent, it seems. Even between the two sets you provided. For instance, you have .674v on pin5 of the LT1054 and -13.76v on pin4 of IC1, yet these are the same voltage supply. But, those might just be mistakes in measuring and not a problem on the actual circuit.

I did find my original voltages. Here is a pic below for reference. A lot of your voltages are in the right range. But, a few of them are further out than they should be. Some of your IC pins that should be close to 0 are reading in the 100+mV range. I would re-flow solder on all your ground wires and see if that fixes it.

You said your output is very low so the first thing I would actually do it the ICL8038 and AD633 out of there sockets. Turn up the blend all the way and check the volume output again. It should be close to unity with the bypass signal. If not, then the problem (or one of them) lies with IC1 or the input of the circuit.


I own madbeanpedals (duh). I am part owner of Function F(X).