Samsung Galaxy Note 3 SM-N900  DCS/PCS TX Network not Working Solution Schematic, Diagram ,Circuit


Samsung Galaxy Note 3 SM-N900  DCS/PCS TX Network not Working Solution Step by Step 

Step 1


F100 PIN 4 :
About 30dBm ?

CHECK soldered
- CN100, L100, C104

Step 2

Check F100 PIN 6
About 30dBm

Resolder or change
F100

Step 3

Check the Voltage at
C166 = VBATT ?

Resolder or change
C104, L110

Step 4


Check component
soldering status OK at
F101

Resolder or change
F101

Step 5

Check F101 PIN 10
About 30dBm ?

Resolder or change
F101

Step 6

Check U101 PIN 24
About 10dBm?

Resolder or change
U101

Step 7

Check the freq. at
OSC100 PIN 4 : 26MHz ?

Change or resolder
OSC100

Step 8

Check component
soldering status ok at
U103

Resolder or change
U103

Step 9

DCS/PCS Transmitter is O.K?

Resolder or change
U300





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