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If GSM850/900 Over 31dBm?
If DCS/PCS Over 28dBm?
If GSM850/900 Over 7dBm?
If DCS/PCS Over 5dBm?
Check Transceiver physical damage
or soldering condition
LGE Internal Use Only
START
Check TP1/2
No
Check TP3/4
No
OK?
Check next step
Yes
Check component above RF signal path
Yes
Check U1300 soldering
NOT GOOD
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3. TROUBLE SHOOTING
Replace U1500
Only for training and service purposes
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