The Numark PT-01 and ION iPT01 are cheap and widely available portable turntables that are becoming popular alongside the Vestax Handytrax for portable scratching.
Here is a very incomplete and untidy reverse engineered schematic for the PT-01. Sections are as follows :
- Top - audio section of main board
- Bottom left - Power supply and audio output board
- Bottom right - motor section of main board
- Bottom far-right - speed select section of top-panel control board