Line6 Spider III 120

[gearhead63]

Does anyone know if the circuitry for the Spider III 120 is comparable to the 75?
And if not where I might obtain a schematic for the 120?
I have a guy that has a 120, and one day it just showed 8 dashed lines on the LCD with no output. I saw on another forum where someone had a Spider III that did the same thing, turned out to be an SMD cap on the preamp board, but as Line6 repaired it, he didn't know which cap it was. I have schematic for the 75 and HD150, but not the 120. He lives a good ways from me, so I don't have the amp in front of me,yet,to compare the PCB to my schematic.
Any help would be appreciated.