LG 47LA790V Service Manual page 68

9. PMIC & Level Shift Bloc Diagram
PANEL_VCC
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Boost Converter
Buck 1 converter(VCC)
Buck 2 converter(Vcore)
Buck 3 converter(HVdd)
Buck 4 converter(VCC18)
Positive Charge Pump Controller
Negative Charge Pump Controller
6-Ch Gamma Buffer(DAC output)
Vcom reference & gain
Reset
PMIC
TPS65178
Vdd
VCC
Vcore
HVdd
VCC18
SWN
TR/
CTRLN Diode
SWP
TR/
CTRLP
Diode
GAM4/5/7/12/14/15
VCOM_P
VCOM_N
VCOM_LOOP
PMIC_RESET
16 / 90
Level Shift
TPS65198
VGL
VGH
LGE Internal Use Only