LG 50PC1DR - - 50" Plasma TV Troubleshooting Manual page 23

IPM (Intelligent Power Module)
There are two IPMs used in 50PC1DR on the Y Sustain Board.
Role of IPMs
1. Generate Sustain Waveform (square wave) – SUS IPM.
2. Energy Recovery Function (for saving power) – ER IPM.
Plasma Display Panel Troubleshooting - 2007
1. SUS IPM (IC202)
2. ER IPM (IC201)
SUS_DN SUS_DN
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Troubleshooting
SUS_UP SUS_UP
ER_UP ER_UP ER_DN ER_DN
SUS_DN SUS_DN