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reserved. Only training and service purposes
LGE Internal Use Only
3. TROUBLE SHOOTING
LTE1/2/3/4/5/7/8/17/20/28 Rx
3.7.1 LTE PART
Image Checking Flow
Check TP1/2/3/4/5/6/7/8/9/10
Signal exist?
START
Check next step
Check Component
above RF signal path
YES
NO
Check Transceiver physical
damage
or soldering condition
OK?
NOT GOOD
Replace U1500
U1500
TP1(Band1 Rx)
BOTTOM
TP3(Band3 Rx) TP4(Band4 Rx)
TP2(Band2 Rx)
TP5(Band5 Rx)
TP7(Band8 Rx)
TP10(Band28 Rx)
TP9(Band20 Rx)
TP8(Band17 Rx)
TP6(Band7 Rx)
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