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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-17
9-9. Back Light (for Color Main LCD)
Backlight does not work
Yes
Is LCD Contrast set on high
level in the Menu?
No
Set LCD Contrast on high level
Yes
Resolder HEA616 or change PBA
No
HEA616 PIN 40 = H ?
Yes
END
check related circuit from UCL200
No
Check I2C data is OK?
Yes