LG GX200 - Page 83

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4.10.3 Checking Flow
Start
Microphone work
properly
YES
Check status of MIC ?
Re-solder or replace
Microphone around
and try again
NO
Re-soldering and check
CPU(U401) status ?
Change MB PCBA
NO
YES
YES
Check Component status
around Mic ?
Re-solder or Replace
Component
NO
Check Voltage of
TP1, TP2 Status ?
NO
Re-soldering and
Change and L707,
R701 and Try again
YES
Enter the Engineer Mode and
set Master Microphone on