1985 Japan Westone Spectrum LX

3 way kept popping back to middle. Opened back to raise it. Saw a 7 pin module in toggle cavity.
Tried again with amp & noticed tones would change as I "scrolled" up or down by tapping it.
Does have the usual split+ mid off + phase 3 x push pull knobs... which also change some of the "scrolled" tones. Saw "SwitchMaster" term used but only with the 3 knobs... any info ? rare or special ?

Mar 20 2021 pics inc 7 pin module are posted on
kijiji Calgary Alberta Canada...
search guitars for Westone for others...

some pics of the 7 pin module would be nice

could not find what you describe on kijiji

Thank you for your time and esp the Quest info.
A buddy is buying the Westone and realized the plastic tip was too far down, and stopping toggle from staying in place... fixed and he's buying it.
Mystery solved... maybe look in any of yours to see what threw me... I'm used to strat 5 ways and thought a 3 way would be an open unit like an input jack... not closed up like a pot...
- 3 - 4 unused tabs so maybe it can do more than it does... if modded
Thanks again