Hey, I have an old Yamaha PSS-470 that is not circuit bent or anything, it's my mom's from the 80s. I have been having a blast with the synthesizer, moving the sliders up and down rapidly. However, the spectrum slider stopped registering at the 3 position. So I started deconstructing it to see if it was fixable. However, I ran into a problem trying to detach the circuit board. Try as I might, it would not come off, something was blocking it. Has anybody deconstructed one of these and know what I'm talking about, is there a trick to it? Thanks, any help would be much appreciated.
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