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SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams
2-
21
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2-1-9. LCD
First, Check the connection of
CN103 and LCD
Replace a connector
NO
Check the connection of
LCD and the solder-
status of CN101
NO
YES
YES
LCD does not Display
END
YES
Have a some
problem of
connector (CN103)
Display a
image(MMI) clearly
Backlight does work
backlight's
brightness is
uniform
Check the Voltage (. If
had no problem, Check
the LCD_BACKLIGHT
signal (U101)
Change to New
Compnent(U101). If not
effect, change to new
LCD
NO
NO
