Hydra delay no sound

Z

zarakikenpachi

New member
Hi guys, I have a problem with my Hydra Delay build. I only get dry sound, if I turn the mix pot to 100% wet I have no sound.
I did the signal trace and I have signal on the fv1 pin 1 but nothing on pin 28. The regulator seems to be ok (3,3v on the output), but after few minutes it gets REALLY hot. Level and mix pots have dust cover.
Can anyone post the voltage readings on the fv1?
image link
Thank you in advance for your help.
 
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Floyd82 said:
Please, can anyone post the voltage readings on the fv1?
Click to expand...
I'm no FV1 expert but have a look at the datasheet that shows 3.3v pins, ground pins the rest I would think are around half power 1.65v ish

Obviously the pot pin voltages would alter as you turn it and increase/ decrease resistance

There's a sample circuit showing you which pins connect to the eeprom etc so it'd give you an idea of voltages and where to continuity check etc
 
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Lol, so... This is probably too late to help the original poster, but for anyone coming back later on... I had this same issue. Turns out the problem was that my idiot self forgot that it came with a pre loaded EEPROM (one 24LC32A). Some time later I ordered the parts and, not thinking, I ordered a blank 24LC32A from Digikey (just going off the parts list). I installed the blank 24LC32A. Then I plugged it in and expected it to work 😂. Not my proudest moment. Switched it for the Hydra EEPROM and it works great. Ridiculous.
 
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The original poster was getting a hot regulator. That sounds like a short somewhere on the 3.3v line causing the circuit to try and draw more current than the regulator can deliver. A blank EEPROM would also cause problems with the wet signal though :)
 
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