Read LG 50PA4500-UM / 50PA450C-UM (CHASSIS:PU23A) Service Manual online
■ IC606 (+3.3V/AZ1085S)
Vin
Vout
3-4. LDO/DC-DC Start up
■ IC605 (+5V_TU/TPS54231)
Vin
Ve
n
n
Vo
Io
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