LG 42PG20 - Page 53

53
Plasma Fall 2008 42PG20
Diagram of Y-Sustain Board
Y SUS Block Diagram
Y SUS Block Diagram
Generates Vsc and -Vy
from Vs by DC/DC Converters
Also controls Ramp Up/Down
Control Board
Circuits generate
Y Sustain Waveform
Distributes 5V VS
Distributes 5V
Logic signals
needed to
generate drive
waveform
Distributes 16V and VA
Receive 5V VCC, Va, Vs
from SMPS
Transfer Waveform
to Y Drive Board
Z SUS Section on the
Same PWB
Right X Board
Display Panel
Power Supply Board - SMPS
FETs amplify Sustain
Waveform
Left X Board