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LG CU920 - WCDMA PAM Control Block Verification

LG CU920
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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 100 -
Fig. 4.7.3.3 Check Flow of the WCDMA RX Block
Check Vbias over 2V?
C
Set the Phone Rx is ON
Check TP1
Signal exist?
Check bias
Block soldering
Rx is OK
Check other Parts
heck the RF S/W
Check FEM
Check the Duplexer
FL103 & FL104
Check the RTR6275
IQ signal
Check TP2 & TP4
Signal exist?
Check TP3 & TP5
Signal exist?
Check TP7 & TP8
Signal exist?
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO

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