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5-
8
SGH-T200 Flow Chart of Troubleshooting
8. Input
Check the CN504's pin2
is "HIGH", pin3 is "LOW"
& pin3 of Key3 is "LOW"
Check Key operation
Check U302
using Factory Test
Program
Resolder CN504 & Key3
Change the Front dome sheet
END
No
Yes
Yes
No
Yes