Samsung Galaxy Note 3 SM-N900 WCDMA BAND1 TX 3G Network not Working Solution Schematic, Diagram , Circuit



Samsung Galaxy Note 3 SM-N900 WCDMA BAND1 TX 3G Network not Working Solution Step by Step 


Step 1

F100 PIN 4 :
About 22dBm ?

CHECK soldered
- CN100, L100, C10

Step 2

Check F100 PIN 6
About 22dBm

Resolder or change
F100

Step 3

Check the Voltage at
C104 = VBATT ?

Resolder or change
C104, L110

Step 4

Check component
oldering status OK at
F101

Resolder or change
F101

Step 5

Check F101 PIN 2
About 22dBm ?

Resolder or change
F101

Step 6

Check U101 PIN 2
About 22dBm ?

Resolder or change
L114, C141

Step 7

Check U101 PIN 26
About 0dBm?

Resolder or change
U101

Step 8


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

Change or resolder
OSC100

Step 9

Check component

soldering status ok at
U103

Step 10

Band8 Transmitter is O.K?

 Resolder or change
UCP300





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Samsung Galaxy Note 3 SM-N900 WCDMA BAND8 TX 3G Network not working Solution 
Samsung Galaxy Note 3 SM-N900 WCDMA BAND8 TX 3G Network not Connect Solution
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