via this auction
"Below is the work that was carried out on the unit from the work order July 2016
'Located and replaced failed Roland BA6632 VCA on lower module controller board. This was killing the VCF LFO on lower voices. Cleaned up gain selector switch. Replaced failed CA3046 transistor array which killed voice 4 VCO 2. Cleaned bad key contacts. Cleaned bad sliders. Replaced perished rubber buffers on the pitch bender. Calibrated bender and mod controls. Repaired dry solder joint on volume board that was silencing the upper output. Cleaned up all of the intermittent switches and controls'"
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