Flow Chart of Troubleshooting
3-16
3-1-7. LCD
LCD does not Display
First, Check the connection of CN305 and LCD
①
Have a some problem of
connector (CN305)
YES
Replace a connector (
CN305
)
②
NO
NO
Check of
U301
(pin 7)
③
NO
Check
U401
Backlight does work
YES
try with the new LCD module and
change
check the data line from
CN305
YES
Summary of Contents for SGH-U100
Page 15: ...Flow Chart of Troubleshooting 3 2 ...
Page 37: ...Flow Chart of Troubleshooting 3 24 ...
Page 42: ...Flow Chart of Troubleshooting 3 29 ...
Page 44: ...Flow Chart of Troubleshooting 3 31 ...
Page 54: ...6 PCB Diagrams 6 1 ...
Page 55: ...PCB Diagrams 6 2 ...