Back Light (For Color Main Lcd) - Samsung SGH-T100 Service Manual

5-10 Back Light (for Color Main LCD)

Check for the pluse signal
at CN201 pin 26
Yes
Replace the LCD module
END
Flow chart of Troubleshooting and Circuit Diagram
Backlight does not work
LCD Contrast high level
in the menu ?
Yes
U201 pin 4 = "H" ?
Yes
No
Replace the PBA
No
Select LCD Contrast high level
No
U801 pin 2 = "H" ?
Resolder U801
END
Yes No
Check the circuit
related to SW801
5-17