Boss PH-3 phaser schematic? Trying to do a wet/dry mod

[Processaurus]

Hello, I was looking at my PH-3 that I never use and was wishing there were a wet/dry knob, as all of the sounds in it are fairly obvious (look everyone! PHASER!  Yeeaaahhh...).  It is DSP based but was hoping that the dry signal may be analog.  Slim chance but it would be very cool it could be modified.  I believe it is the same PCB as the AW-3...  Thanks for any info on this.

[Processaurus]

Bueller?