LG VX9100 Service Manual page 88

VX9100
4.2.2.7 Check Mobile S/W
Checking Flow
Start
Check pin2(TP1) , 1(TP2)
at U100 . Referring to
Figure 4.2.2(k)
Is it similar ?
NO
Replace U100
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Only for training and service purposes
Test Point
Test Point
RF IN
RF OUT
Checking Flow
YES
Mobile S/W is
OK
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Circuit Diagram
Circuit Diagram
TP2
TP1
Waveform
Waveform
RF_OUT(DUP)
Figure 4.2.2(k)
LGE Internal Use Only
RF_IN(ANT)