Loco box phaser ph-01 schematic needed

[Renegadrian]

Tried to find it both on the forum and googling around, no success at the moment...

Got this phaser for dirt cheap, want to make it true bypass with a regular switch.
I know it went under several brands/names, but didn't manage to find the correct schem. it has 4 6552 ICs 4 k30a for the phasing part, and some other trannies (in/out buffer, switching)

[Renegadrian]

may someone need it...pcb scan