No Rx Gsm - Motorola MotoRAZR maxx V6 Manual

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Title: Troubleshooting-Guide MotoRAZR maxx V6

No RX GSM

Inject a RF from Test Set. The power level should be set to max power. Check
antenna switch M001-1. Check for presence of
- If not ok replace FEM
- If ok there is most likely a problem with the SAW Filter FL500, the TransAAM
the ARGON
Note: For AFC phasing the receiver is used. So, if there is any RX fail, the AFC phasing on
that frequency band also fails. If the RX phasing is ok, but only AFC phasing fails, a bad
crystal is the most likely cause – replace Y190.
In addition the FEM state after FEM logic table can be checked. If one of them is missing, it
is most likely a problem with the ARGON U1000 – forward to an authorized level 4 service
center.
Repair Support Information
U001
U1000 – forward to an authorized level 4 service center.
Figure 38
Figure 39
Doc. No:
Version:
Date:
Page:
GSM_RX_IN at C524-2.
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ANT_FEM at
U500 or