Modding a Reverb (Biyang Reverb RV-12)

Started by Chahmann, April 18, 2020, 02:16:52 AM

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Chahmann

Hello, I wanted to mod a reverb adding a capacitor for bass cause it seems to dampen low frequencies when activated and the signal is clean ... although now that it is disassembled i wanted to know what else can i make it do, it uses a BD3201-14a, a reverb engine with many options, a clock, and many amp stages. The switch labeled "Long - Short" probably bypasses one of the 3 dual OPamps or something, it has a sampler with a/d conversion and another d/a converter with the clock....i dont really know what to do here since i cant find a diagram or a clone diagram or something, i can identify some tracks on the pcb but very vaguely, so i cant really trace them.... HELP PLEASE

Chali.










DIY Bass

BD3201 looks like an AL3201.  You will find English datasheets on it using that code.  How you access it depends on whether the pedal uses the internal programs or an EEPROM with external programs.  If it is using internel programs then it should be pretty easy to mod it to get more programs

Chahmann

Thanks a lot mate!! Will check it out, and i will post whatever i do to it, cheers