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4. TROUBLE SHOOTING
TP*:UMTS 800 Rx PATH
TP: UMTS 2100 Rx PATH
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
Set the Phone Rx is ON
Check Vbias/
Vbias' Over 2V?
Check bids
block soldering
Check ANT
Check the
FEM FL100
Check Duplexer
FL103, FL106
Check RTR6275,
RER6275, FL101, FL107
Check TP1
Signal exist?
Check TP2/TP2'
Signal exist?
Check TP3/TP3'
Signal exist?
Check TP4/TP4'
Signal exist?
Rx is OK
Check other Parts
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