LG 42PQ20 Training Manual page 80

CONTROL PWB SECTION
CONTROL PWB 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 resistance test points needed for troubleshooting.
Signals
Signals
Operating Voltages
Operating Voltages
• DC Voltage and Waveform Test Points
• Resistance Test Points
Main Board Supplied
Y SUS Supplied
Developed on the
Control board
LVDS Signal
+5V (Also Routed to the Z-SUS)
+15V (Routed to the Z-SUS)
+1.8V
(2) +3.3V
80 January 2009 Plasma 42PQ20