LG 42PW350 - TOPICS TO BE DISCUSSED; Circuit Board Troubleshooting

Preliminary:
Contact Information
,
Preliminar
y
Matters
,
S
p
ecifications
,
TOPICS TO BE DISCUSSED
Troubleshooting:
,y,p ,
Plasma Overview, General Troubleshooting Steps,
Disassembly Instructions, Voltage and Signal Distribution
• Y-SUS Board Delivers Y-Scan, Logic Signals and FG5V to Y-Drive board.
Circuit Board Operation, Troubleshooting and Alignment of :
• Switch Mode Power Supply
Only RL_ON and M_On commands to SMPS
•
Z
SUS
Board
Also
uses one Z
SUB board for bottom panel
connector
• Y-Drive Board
There is no VSC adjustment on this Y-SUS board.
The Y-SUS receives VS, M5V from the Z-SUS.
•
Z
-
SUS
Board
Also
uses
one
Z
-
SUB
board
for
bottom
panel
connector
.
• Control Board
Routes VA to the Z-SUB then to the bottom right X-Board.
Routes VS, M5V to the Y-SUS.
• 2 X Drive Boards (Left and Right)
• Main Board
•
Interconnect Diagram:
11X17 Foldout Section used as a quick reference sheet
June 2011 42PW350 Plasma
2
Interconnect
Diagram:
11X17
Foldout
Section
used
as
a
quick
reference
sheet
.