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SGH-E630 Flow Chart of Troubleshooting
7-
14
9. LCD Part
Is LCD Contrast set on high
level in the Menu?
Set LCD Contrast on high level
END
No
Yes
Yes
LCD does not work
CN606 pin 21 = 2.8V?
Check the R315
No
Yes
CN606 pin 19(L_WR),
20(RS) is OK?
Check the U400
No
Yes
Yes
Replace the LCD Module