MF Delay troubleshooting: which BBD?

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penguinrock
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Joined: Mon Sep 16, 2019 3:39 pm

MF Delay troubleshooting: which BBD?

Post by penguinrock » Fri Jan 07, 2022 9:36 am

Hello folks. I sold my Minifooger MF Delay to someone else through Reverb.com. The pedal stopped working for the buyer after using it a few times (it powers up and the drive knob still works). Sounds like a typical BBD chip failure.

I'm trying to help out the buyer by suggesting a BBD for drop-in replacement, but I don't know which one. I asked him to take off the bottom plate of the pedal and snap a photo of the PCB, but the chip must be sandwiched on the second PCB underneath. Trying not to ask him to take the whole thing apart just to find the chip.

All I can find on this forum is that it's some Panasonic MN3xxx chip. Can anyone confirm what chip this is? How many stages? Also, what type of package (I'm assuming it's an 8-pin DIP)?

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