Samsung SCH-I535 Service Manual page 139

8-4-9. LTE B13 DRX
**If you check the Rx chain, Check the not only RF Device but also resistor, inductor and capacitor.
Resolder U200 or Change
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Continuous Rx ON
RF Input : 5230CH
Amplitude : -50dBm
Normal condition
l?
Catch the channe
Yes
Check L310,L312
>= -55dBm ?
Yes
The End
No
Check Antenna contact
No
Resolder or Replace F303
8-69
Level 3 Repair