LG H990ds - WCDMA Rx Signal Path (Bands B1-B8)

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3. TROUBLE SHOOTING
Checking Rx signal path(B1/B2/B3/B4/B5)
Checking Flow Image
3.6.1 WCDMA PART – WCDMA B1/B2/B3/B4/B5/B8 Rx
Check
TP1/2/3/4/5
Signal exist?
START
Check next step
Check Component
above RF signal
path and
FEMiD Block
YES
NO
Check
Transceiver
physical damage
or soldering
condition
OK
NOT GOOD
Replace U1101
TOP
TP2(B2 Rx)
U1101
(M499)
TP3(B3 RX)
TP5(B8 RX)
TP1(B1/B4 RX)
TP4(B5 RX)
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