Lcd - Samsung SGH-E840 Service Manual

Flow Chart of Troubleshooting

3-1-7. LCD

LCD does not Display
First, Check the connection of HDC602 and LCD
Have a some problem of
connector (HDC602, J1)
Backlight does work
check the data line from
HDC602
try with the new LCD module and
change
YES
NO
YES
YES
①
Replace a connector
②
NO
③
NO
3-16
(HDC602,
J1)
Check of U606
(pin 19, 20)
Check U502