Schematic Diagram | Ysus

This report provides a technical analysis of the Y-Sustain (Y-Sus) board schematic diagram, a critical component in Plasma Display Panels (PDP). The Y-Sus board generates the high-voltage waveforms required to sustain plasma discharge. This document breaks down the major functional blocks—power management, energy recovery, and sustain switching—to facilitate diagnostics, component identification, and repair processes. 2. Terms of Reference

Sends the final waveform to the Y-Buffer boards. Ysus Schematic Diagram

Uses high-voltage FETs to toggle between Vscap V sub s and ground at high frequencies. This report provides a technical analysis of the

Recovers energy from the plasma panel to improve efficiency. Look for large inductors (coils) and MOSFETs. Recovers energy from the plasma panel to improve efficiency

Using the schematic, the following troubleshooting steps are identified: Verify Vscap V sub s (approx. 200V) and Vscancap V sub s c a n end-sub are reaching the Y-Sus board.

Check for shorted FETs (Drain to Source) in the sustain switching circuit.