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Check TP1/3
Signal is over 21dBm?
Signal is over 21dBm?
Signal is over 21dBm
Check TP5/6
Signal is over 21dBm
Signal is over 3.5dBm
Check next step
LGE Internal Use Only
START
Yes
Check TP2
Yes
Check TP4
Yes
Yes
Check TP7
OK?
No
Check FL1100 or FL1103 Soldering
No
Check FL10062 Soldering
No
Check FL1201 Soldering
No
Check U1300 Soldering
No
Replace U1500
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3. TROUBLE SHOOTING
Only for training and service purposes
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