Samsung Galaxy Note 3 SM-N900 GSM850/GSM900 TX 2G Network not Working Solution Schematic , Diagram , Circuit
Samsung Galaxy Note 3 SM-N900 GSM850/GSM900 TX 2G 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
C104 = VBATT ?
Resolder or chan
C104, L110
Step 4
Check component
soldering status OK at
F101
Resolder or change
F101
Step 5
Check F101 PIN 9
About 30dBm ?
Resolder or change
F101
Step 6
Check U101 PIN 4
About 30dBm ?
Resolder or change
L112, C139
Step7
Check U101 PIN 26
About 10dBm?
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
Resolder or change
U103
Step 10
GSM850/900 Transmitter is O.K?
Resolder or change
U300
Samsung Note 3 N900 GSM 850 GSM 900 TX Solution
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