Samsung SCH-I535 Service Manual page 132

Level 3 Repair
8-4-7. EVDO CDMA Div RX
**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 : 384CH
Amplitude : -50dBm
Normal condition
l?
Catch the channe
Yes
Check C417,C427
>= -55dBm ?
Yes
Check C443, C445
>= -60dBm ?
Yes
The End
No
Check Antenna contact
No
Resolder or Replace DUF400
No
Resolder or Replace U402
8-62