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Checking Flow
START
Send Key Click →
Phone Number Click → Call
Connected
Cover the Proximity Sensor
LCD OFF?
NO
Is the Proximity IC
(U8101)
voltage 2.85V?
C8109 (TP1)
YES
Replace Proximity IC
(U8101)
Function is OK?
Replace Main PCB
LGE Internal Use Only
LGE Internal Use Only
YES
END
NO
Check PM8956 voltage
+2V85_VREG_L10
YES
END
3. TROUBLE SHOOTING
Image
TP1
Circuit Diagram
TP1
48
U8101
Copyright ⓒ 2016 LG Electronics. Inc. All right
Copyright ⓒ 2016 LG Electronics. Inc. All right
reserved. Only training and service purposes
reserved. Only training and service purposes
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