Vh drive Aion FX Help

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MidknightWoodsman

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Hello just built the VH drive Aion FX and IAM having noise issues like a few people have posted , I have used hook up wire for the inputs originally but changed to coaxial for the inputs , re soldered what I thought needed to be done , all my test on the multi come back all good for grounding . I have cleaned the board which I will do again . Now wondering if any one else have had the squealing noise issues . At low volumes it's ok but gain mid and volume all act differently at different levels . If I pulled the jack out of the guitar and makes a high pitch noise as well . Ive pushed the wires around inside and no change in high pitch noise.
 
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MidknightWoodsman said:
Hello just built the VH drive Aion FX and IAM having noise issues like a few people have posted , I have used hook up wire for the inputs originally but changed to coaxial for the inputs , re soldered what I thought needed to be done , all my test on the multi come back all good for grounding . I have cleaned the board which I will do again . Now wondering if any one else have had the squealing noise issues . At low volumes it's ok but gain mid and volume all act differently at different levels . If I pulled the jack out of the guitar and makes a high pitch noise as well . Ive pushed the wires around inside and no change in high pitch noise
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MidknightWoodsman said:
View attachment 127036
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The photo with the yellow mat is the new photo , I have rewired a few times changed to coaxial for the jacks , cleaned and re flowed where i could added more solder to the pots . Now after all of this nothing changed the high pitch oscillation i think its called .

Now the only think i did different was I cut the jumper from the dc to the input ground the tone sounded lower and not as brutal and changed that was the only thing i did that changed that noise .

Even after changing wires , pushing move wires around with a wooden stick adjusted dust covers , cleaning , using an amp changing leads and guitars , still had that noise oscillation i think its called . so I think the first noise was some ground looping issues .

The pedal always turned on and worked it was getting that higher pitch nose when when the input lead wasn't connected to the guitar and when it was . if i adjusted the mid , vol,gain things changed a bit , if the volume is lower no real back ground noise just the hum .

So still kinda stumped . the pedal dose sound good just when certain or all are dimed thats where there are issues . Iam using the voodoo pedal plus isolated power as well . I hope this makes sense this is my first ever pedal build
 
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anevilspar7an said:
Where did you source your IC's? People unfortunately sell counterfeits so I want to eliminate that from the equation first.
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I got all the components from Mouser and got the pots from Pedal Parts Australia , I do have some of the TL072 i can try at some stage , i did try the other night but that was before i rewired the grounds and still had the same noise it just sounded like it changed frequency's a bit
 
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When I can sit down I'll see if any components look off. I would recommend that you do that too, I've been had by putting the wrong resistors on a board and having to go over it with a fine tooth comb afterwards.
 
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