TV Schematic

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Summary: charge pump is used to create a high enough voltage for an ordinary power MOSFET If the AVR output is stuck on C3 will discharge through R4 and the MOSFET will eventually turn off AVR output top trace and MOSFET drive bottom trace The peak gate voltage exceeds 10 Volts and the rise and fall times are acceptable The gate voltage rises to 8 volts within 100 nS and

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