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I’m in the process of building this…. Any idea where I can get the programmed Eprom? Thanks.

Problem solved. Bad batch of op amps…

I have the op amps out of this one, but they are duplicates

I have two Cetus pedals built with the same problem. Pass through signal is good. LEDS work,but the only effected signal I get is a slight something when the volume pot is in a certain position and that spot only. Any ideas? Thanks in advance…

What if you have everything working,but the green side volume is very low? With the volume pot all the way up,it’s the same volume as the amp. No boost to the signal. I have 3 of these with the same problem. Thanks

I was about to try this. I can figure out everything except the pot values. Any help is greatly appreciated. Thanks

I think I had the pots turned down. I’m gonna save the chips and enclosure, set the rest aside and try again with solid core 24g wire.

I think the whole thing is going in the trash.

TL022 pin one=7.23v,pin two=7.17v,pin three=6.9v,pin four=7.42v,pin five=7.1v,pin six=6.79v,pin seven=7.1v,pin eight 0v. MN3707 pin one=0v,pin two=3.4v,pin three=6.3v,pin four=6.7v,pin five=7.26v,pin six=2.5v,pin seven=0v,pin eight=3.41v MN3102 pin one=7.2v,pin two=3.3v,pin three=6.4v,pin...

I’ve just completed testing all values of resistors and caps and they are correct. As far the the LFO,I’m waiting for those to arrive. All I have here are 5mm leds and they won’t fit. Thank you for trying to help.

I’m using a depleted 9v battery with an adapter that plugs into the power jack. It show 7.3v which I’m getting to pins1234678. There is no power down to where the 3PDT hooks to the board so the switch is dead. The Mylar film capacitor in the C1 position has power on one side but not the other...

I’m getting power through the board except where you feed the switch. The board is completely dead there. I’ve disassembled the pedal and there are no bridges. Reflown some suspicious joints.

I’m getting 9v there. On the upper pin on the right side of the chip

Then I have no idea…

There was a stray on the back side. I’m getting 9v to the board,but not through the 9V1 zener. I’ve ordered the leds and a new zener. Also no power to the switch. I hope it’s the zener…edit. I just misssed the leds. I guess I thought those were just power indicators as usual.

What leds go there? I saw nothing on the build document

I blew up the picture above to look for that. I can’t see a bridge. Is it possible I have a bad pcb?

finally. Lol

It’s says file is too large for server. Photo is too large