Gsm Part - LG -H815 Service Manual

3.5.1 GSM PART

GSM850/900/1800/1900 Rx
Checking Flow
START
Check TP1/2/3/4 Signal exist?
YES
Check Transceiver physical
damage
or soldering condition
OK?
Check next step
LGE Internal Use Only
Check Component
above RF signal path
NO
NOT GOOD
Replace U1500
TP2(G850 Rx)
@JahanIC
16
3. TROUBLE SHOOTING
Image
BOTTOM
TP1(G900 Rx)
U1500
TP1(G900 Rx)
Copyright ⓒ 2015 LG Electronics. Inc. All right
reserved. Only training and service purposes
TP4
(PCS Rx)
TP3
(DCS Rx)