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8. Level 3 Repair
8-4-7 TSP
No
Yes
Yes
No
Yes
No
Yes
Solved
Touch does not work
Check the connection of
U507
END
Reconnect the U507
Check the Voltage on
C510= 3.3V
Replace the C510 or U300
Check the I2C signal
Replace the R331, R332
Replace U504
Swap the UB module
Replace the UB module
Not solved