Level 3 Repair
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8-47
8-4-1. GSM850/900 RX
**If you check the Rx chain, Check the not only RF Device but also resistor, inductor and capacitor.
Resolder U200 or Change
Check Antenna contact
The End
Yes
No
Resolder or Replace C108
Yes
No
Normal condition
Catch the channe
l?
Continuous Rx ON
RF Input : 190 CH
Amplitude : -50dBm
Check C100
>= -55dBm ?
Check L102,
C118,C119
>= -60dBm ?
Check C129,
C130,C163,C164
>= -65dBm ?
No
Resolder or Replace F100
Yes
No
Resolder or Replace U101
Yes
Summary of Contents for SCH-I535
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