Panasonic OLED-201806 Technical Manual page 26

Power Board Structure -4 ( P+LDP Boards )
< P + LDP >
This LDP block diagram is 2ch drive for backlight of 65inch model.
4ch drive is for 75 inch models. The number of channel and
VLED voltage are different by the LCD panels.
PFC
IC
P
( only 65FX6**/75FX7** )
HO
Power
LO
IC
DCDC
LDP
16V
DCDC
VLED1
1 ch
Anode
Cathode
VLED2
Anode
1 ch
Cathode
LED
Drive
(Backlight)
IC
2 ch
PWM
BL-ON
16V
STB5V
2 ch
A
26