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reserved. Only training and service purposes
LGE Internal Use Only
3. TROUBLE SHOOTING
3.5.1 GSM, WCDMA, LTE PART - PRx
Image
Checking Flow
Check
TP1/2/3/4/5 Signal exist?
START
Check next step
Check Component
above RF signal path and
FEMiD or Switch Block
YES
NO
Check
Transceiver physical damage
or soldering condition
OK?
NOT GOOD
Replace U1800
BTM
3.5 GSM, WCDMA, LTE PART
U1800
(WTR2965)
TP2(B2/B3/G1800/G1900 PRx)
TP3(B1 PRx)
TP4(B7 PRx)
TP1(G850/G900 PRx)
G850/G900
TP1(G850/G900 PRx)
Circuit Diagram
TP2(B2/B3/G1800/G1900 PRx)
B2/B3/G1800/G1900
TP3(B1 PRx)
B1/B4
TP4(B7 PRx)
B7
Checking Rx signal path (GSM 850/900/1800/1900 WCDMA B1/B2/B3, LTE B1/B2/B3/B7)
16
Содержание LG-M700TV
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