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Check the Connection
Between PCB & Earjack.
C5105 is 1.3V?
FM RX Signal exist? L5101
Check U5100 (WCN3620)
LGE Internal Use Only
START
Yes
TP1
Yes
TP2
Yes
J6610 : Earjack
U5100 : WCN3620
U4100 : PM8226
No
Replace Earjack.
No
The problem may be refer to PMIC block.
Check U4100(PM8226)
No
Check RF Line.
: L5101, L5100, C6610, L6610, D6610
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3. TROUBLE SHOOTING
Only for training and service purposes
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Table of Contents
Troubleshooting
