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Samsung gt s7562 Samsung Galaxy S Duos S7562 Pcs Rx not working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Pcs Rx network not working Schematic , Diagram , Circuit 


Unofficial support site for this Phone By Welcome Zone Haldwani Solution

Samsung Galaxy S Duos S7562 Pcs Rx network  not working Solution Step by Step 

Step 1

Continuous Rx ON
Channel : 661 CH

Cell power : -60dBm


Step 2 


U100 PIN30 ≥ -65dBm?

(L141 using spectrum analyzer)


Resolder L141 or RFS100

Check RFcable

Step 3 


U100 PIN23, L119 ≥ -68dBm?


Check the U100`s
Ant. selection diagram


Resolder L119
or Change U100


Check Main chip(UCP300)

Step 4

F103 PIN8,9
L135, L136, L118 ≥ -75dBm?


Resolder L135, L136, L118
or Change F10

Step 5

Change U100

                       

Unofficial support site for this Phone By 
Welcome Zone Haldwani

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Updated: 09/12/2015 — 11:04 PM

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