Level 3 Repair
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8-67
8-3-26. TSP
Touch Screen does not work
Yes
No
Reconnect the HEA700
Check TSP Connector on
Main PBA
Yes
END
Yes
No
Reconnect TSP Connector
Check the TSP connector on
LCD Module
Yes
Replace LCD Module
Yes
Check the I2C signal(R5025,
R5026) and int signal(R741)
Yes
Resolder R5025, R5026, R741
No
No
U600
TSP_VDD_1.8V(R741) and
TSP_AVDD_3.3V(C709)
Resolder or Replace U600