Published on Jan 18, 2017 JrOrlow
via this auction

Repaired boot problem.
Replaced broken output 4 jack.
Replaced incorrect fuse with a proper one.
Replaced battery.
Completely refurbished all pads and replaced broken or missing parts.
Completely refurbished all Function buttons.
Sliders are jumpy and very sticky, installed 8 brand new sliders.
A/D converter offset is totally wrong, ran diagnostics and calibrated offsets.
Tightened transformer.
Cleaned master volume, click and sample input pots.
This unit is a sparkling 30 year guaranteed worker. Cosmetically it has some issues. There is a black case instead of the normal grey, it looks like someone bought an sp1200 and then modded the sp12 panels over it. The screen has a cover on it, which is not the same as I being on other units. This unit works great though, sliders and buttons are immaculate, this is the turbo model with os 2.4 (See demo). It has 5 seconds sample time. The screen is brighter than ones I've had in the past, but I don't think it was replaced. This unit is a trooper, it looks like it was serviced at rogue music years ago and for being older than me it's still working just as well."