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Flow Chart of Troubleshooting
9-16
9-9. Back Light (for LCD)
Is LCD Contrast set on high
level in the Menu?
Set LCD Contrast on high level
END
No
Yes
Yes
Backlight does not work
HDC700(Pin43) = H ?
Check the UCP200
No
Yes
Check the VBAT pins of
HDC700.
Pin 38, 40, 42 = 3.8V?
Check the related circuit of VBAT.
No
Yes
Yes
Replace the LCD Module
Summary of Contents for SGH-E380
Page 32: ...8 PCB Diagrams 8 1 Top ...
Page 33: ...PCB Diagrams 8 2 Bottom ...