Samsung galaxy S2 GT-I9100 Touch Screen TSP Not Working Solutiona

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Samsung galaxy S2 GT-I9100 Touch Screen TSP Not Working Solutiona Schematic,Circuit,Diagram

Samsung galaxy S2 GT-I9100 Touch Screen TSP Not Working Solutiona Step By Step

Step 1

Touch Screen does not work

Step 2

Check TSP Connector on

Main PBA

Reconnect the HDC701

Step 3

Check the TSP connector on

LCD Module

Reconnect TSP Connector

Step 4

U704 Pin 6 = 2.8V(C718)

and Pin 8 = 3.3V(C719)

Resolder or Replace U704

Step 5

Check the I2C signal(R426,
R427) and int signal(R702,

R704)

Resolder R426, R427, R702, R704

Step 6

Replace LCD Module

Step 7

END

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