Sony CD player not starting (belt change)

This video shows how to diagnose and fix common problem of an old CD player. Common thing is that hatch (sled) is not moving in correctly. Other common thing is that CD is not lifted from the sled, so it will not rotate and play at all. Cleaning and lubricating all moving parts and changing the drive belt is usually enough to make things work again.
Problems are usually caused by old loosened belt, which is slipping and this way mechanical movements are not performed completely. Another thing is that some moving parts may be dirty and stuck, in other words dirty gears and sliding surfaces will resist mechanical movements.
Device I'm working on, is Sony CDP-M26, which is part of a bigger rack-stereo system, but most vintage CD players have similar type of design and basic components. Work your way inside the device carefully so that you can find all hidden screws and plastic clips and other fastening features.
Side note:
I'm a mechanical engineer, but what it comes to electronics, I'm mostly self-learned. Do not try to fix your electronic devices if you're not sure what you're doing. If you handle electrical devices carelessly, you may get electrical shock or cause malfunction to the device.

[@markrowe8824]

please don't think of me as rude but I could only manage the first 55 secs of the video due to the intense hand shaking of the camera.

[@Riihimasa]

Yeah, main point is give tips for repairs, but maybe I should get some kind of camera stand..