LG 34WN80C Service Manual page 30

6. Main component information
1. MAIN IC : Process display/audio signal/control signal
Location no. : IC200
2. DC-DC Converter : Convert from 19V or 5V to proper voltage according to IC spec
Location No. : IC400, IC402, IC403, IC404, IC407, IC802
3. Serial flash memory for Monitor : firmware saving
Location No. : IC202
4. LED driver IC : Supporting proper voltage and current according to BLU spec
Location No. : IC600, IC601
5. Headphone AMP : Amplify audio signal from Main IC and then provide amplifying signal to H/P interface
Location No. : IC503
6. USB-C PD Controller : Set the signal from USB-C input and communicate with Source Device.
Location No. : IC800
7. PM IC : Switching PD Vout, controlled by PD profile.
Location No. : IC801
8. USB Hub IC : function of HUB to the PC, should be connect to the PC with USB-C/C or USB-C/A cable.
Location No. : IC700
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