The service manuel is very helpful, we where able to restore the device to its working operation again.
Text excerpt from page 18 (click to view)
KD-SX927R
Removing the turn table / spindle motor (See Fig.37 and 38)
Prior to performing the following procedure, remove the top cover, the connector assembly and the chassis / clamper assembly. 1. Remove the two screws K attaching the spindle motor assembly through the slot of the turn table on top of the body. 2. Unsolder the wire on the connector board if necessary.
