Samsung GT-N5110 Service Manual page 51

8-3-10. TSP
Touch Screen does not work
Check TSP Connector on
Check the Voltage on C913 =
Check the I2C signal
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Yes
Main PBA
Yes
1.8V
Yes
C902 ≥ 3.3V?
C903 ≥ 1.8V?
Yes
Yes
Replace U904
Yes
END
No
Reconnect the SLC900
No
Resolder or Replace U902 or L900
No
Resolder or Replace R901
Resolder or Replace R900
No
Resolder or Replace ZD903, ZD904, ZD905,
8-26
Level 3 Repair
R908, R682, R683