Motherboard map

Motherboard Map & Orientation

Opening a PlayStation reveals a single main board carrying the processor, memory, disc-controller hardware, and the connectors that link to the drive and front panel. This page offers a general orientation so you can find your bearings, not a precise bypass guide. Layouts vary by board revision, so treat the following as a high-level map only.

General Layout

With the console open and the controller ports facing you, the board generally divides into recognisable regions:

• Front edge — the controller and memory-card port connectors sit nearest you.
• Rear edge — the AV multi-out, power input, and (on early units) the parallel and serial ports.
• Centre — the main processor and supporting chips, usually the largest packages on the board.
• Drive side — ribbon and motor connectors leading to the optical assembly.

About Test Points

Boards carry numerous test points and labelled pads used during manufacturing. Their position and naming differ across PU-7 through PU-23 and the PM-41 family. Because internal modification details depend entirely on the exact revision, this overview deliberately stops at orientation.