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Level 3 Repair
8-34
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8-3-11. TSP
Touch Screen does not work
Yes
No
Reconnect the HDC900
Check LCD Connector on
Main PBA
Yes
END
No
Reconnect TSP Connector
Check the TSP Connector on
LCD Module
Yes
No
Resolder or Replace U902
U902 Pin 6 = 2.8V (C906,
C903) and Pin 8 = 3.3V
(C907, C904)
Yes
Replace LCD Module
Yes