LG 50PV450 Manual page 81

Y Y - - Drive Upper Layout Drive Upper Layout
Warning: Never run the Y-SUS
with just P121 disconnected. ith j t P121 di
You must remove the Upper
Y-Drive board completely.
PANEL PANEL
SIDE
P111 P111
P112 P112
t d
P121
Y-SUS Y-SUS
SIDE
The upper Y-Drive is responsible for driving the upper
half of the panel's horizontal electrodes with
Y-Scan signals through the Panel's Flexible printed
circuits. (540 horizontal electrodes).
The Upper Y Drive is also responsible for developing The Upper Y-Drive is also responsible for developing
the FG5V operational voltage for both Drive boards.
It receives FG10.9V from the Y-SUS on P111 pins
11~12 and routs this voltage to IC191 which regulates
it down to 5VFG.
The Upper Y-Drive then delivers the 5VFG to all the
buffers for their low voltage signal processing circuits.
The 5VFG is also sent down to the lower Y-Drive via
P121 pins 21~30 to P221 pins 1~9 for the lower p
Y-Drive buffers. Can not read pins because they are
covered in silicon.
81 May 201 1 50PV450
p/n: EBR69839101
p
Plasma