LG H990ds - IRRC Functionality Check

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reserved. Only training and service purposes
LGE Internal Use Only
3. TROUBLE SHOOTING
3.16.3 Sensor - IRRC
When IRRC is not working check as below.
Image
Checking Flow
No
START
Working well?
Check
TP1: 1.8V and
TP2: 2.4V
Change main PCB
YES
No
Output work well?
Yes
END
END
YES
Working well?
END
No
Circuit Diagram
TP2
TP1
Top
U8200
TP1
TP2
88