Sony Discman D-20 Broken Cogwheel Repair

Sled Mechanism

The sled mechanism is responsible for positioning the platform onto which the laser assembly is mounted. In the Discman D-20, this mechanism consists of cogwheels driven by a DC motor. In this particular unit, there was a broken tooth in one of the cogwheels, and a familiar ticking noise occurring.

Plastic Cogwheels
Cogwheel Tooth
Broken Cogwheel
Missing Tooth

This Article Continues...

Sony Discman D-20
Inside View
CD Transport Mechanism
Motors
Battery
Sled Mechanism
Broken Cogwheel Repair
Lock Switch
PCB and Chipset
Wiring
Back Cover