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SGH-D730 Flow Chart of Troubleshooting and Circuit Diagrams
2-
17
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2-1-7. LCD
END
Check the connection of LCD and
the solder-status of
CN303
Replace a connector (
J2
)
YES
LCD does not Display
Display a image(MMI) clearly
Have a some problem of
connector (J2)
Backlight does work
Check the Voltage (. If had no
problem, Check the LCD_BL_EN
signal (
U1
)
Change to New Compnent(
U1
). If
not effect, change to new LCD
First, Check the connection of J2 and LCD
backlight's brightness is
uniform
YES
YES
NO
NO
NO
NO
①
②
③
④
①
②
③ ④
