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Vintage Synth Repair

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Message

Cetain notes not sounding on JX-3P

2014-01-17 by <mpigott2@...>

I went to play my JX-3P and noticed certain notes not in a row are not sounding.
Didn't have a piece of paper but they were in the lower registers.
None were in a row. It was like E not sounding then C, etc.

Put it in test mode and all oscillators are cycling through, but these same notes are not sounding. Isn't there an IC that distributes or scans the keyboard and this is at fault?

Any ideas?

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