LG 50PJ340 Training Manual - Page 2
OUTLINE, Troubleshooting, Preliminary - plasma
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OUTLINE Overview of Topics to be Discussed Preliminary: Contact Information, Preliminary Matters, Specifications, Plasma Overview, General Troubleshooting Steps, Disassembly Instructions, Voltage and Signal Distribution Troubleshooting: • No Main Power Switch (Vacation Switch). Circuit Board Operation, Troubleshooting and Alignment of : • Switch Mode Power Supply No VS On command input to SMPS • Y-SUS Board Delivers Logic Signals and FG5V to lower Y-Drive board. • Y-Drive Boards (1 Upper and 1 Lower). Lower can run separately, but you MUST remove the Upper completely. • Z-SUS Output Board (Also uses one Z-SUB board for bottom panel connector) • Control Board • X Drive Boards (3) • Main Board • Interconnect Diagram: 11X17 Foldout Section used as a quick reference sheet. 2 July 2010 50PJ350 Plasma