LG 50PJ340 Training Manual - Page 83
CONTROL BOARD Signals, Operating Voltages
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CONTROL BOARD SECTION This Section of the Presentation will cover troubleshooting the Control Board Assembly. Upon completion of this section the Technician will have a better understanding of the circuit and be able to locate voltage and diode mode test points needed for troubleshooting. Signals • DC Voltage and Waveform Test Points • Diode Mode Test Points Main Board Supplied Panel Control and LVDS (Video) Signals Control Board Generated Y-SUS and Z-SUS Drive Signals (Sustain) X Board Drive Signals (RGB Address) Operating Voltages Y-SUS Supplied +5V (M5V) Developed on the SMPS +16V (Routed to the Z-SUS) (Not used by the Control Board) Developed on the Control Board +1.8V for internal use +3.3V for internal use +3.3V for the X-Boards (TCPs) 83 July 2010 50PJ350 Plasma