Lexmark W820 Service Manual page 324

BD1 AC in↔Noise Filter↔LVPS↔MCU PWB↔AC Drive
PWB
The following table shows the signal names for this BD:
Signal Name
LVPS$ON
BD2 Fuser↔AC Driver PWB↔I/O PWB↔MCU PWB
BD2 Fuser↔AC Driver PWB↔I/O PWB↔MCU PWB
The following table shows the signal names for this BD:
Signal Name
FSR##STS1
FSR##STS2
5-18
Service Manual
Description
Switches AC to the Finisher. 0VDC=AC on. +5VDC=AC off.
Description
Analog signal from the Fuser Thermistor
Analog signal from the Fuser Thermistor
4025-XXX