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4.6 WCDMA Receiver Block
GSM Receiver stage is configuring of both FEM stage and MDM RF Receiver.
So, we need to just consider FEM operating and matching components.
Wrong Rx Level
Check TP5, TP6, TP7
-33dBm Signal exist?
Check Duplexer Block
no
yes
Check MDM RF Block
Check TP1
-30dBm Signal exist?
Check RF Switch
no
yes
Input -30dBm at antenna port by using Signal Generator
Check TP2, TP3, TP4
-31dBm Signal exist?
Check FEM Block
no
yes
Wrong Rx Level
Check TP5, TP6, TP7
-33dBm Signal exist?
Check Duplexer Block
no
yes
Check MDM RF Block
Check TP1
-30dBm Signal exist?
Check RF Switch
no
yes
Input -30dBm at antenna port by using Signal Generator
Check TP2, TP3, TP4
-31dBm Signal exist?
Check FEM Block
no
yes
Chart 5 WCDMA Receiver Block sequence
4. TROUBLE SHOOTING
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