Table of Contents
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5-10 Back Light (for Color Main LCD)
Backlight does not work
No
LCD Contrast high level
Select LCD Contrast high level
in the menu ?
Yes
No
U401 pin 2 = "H" ?
CN100 pin 11 = "H" ?
Yes
Yes
No
No
Check for the pulse signal
Check the circuit
Replace the PBA
Resolder U401
at CN100 pin 15
related to U400
Yes
END
Replace the LCD module
END
5-16
Flow Chart of Troubleshooting and Circuit Diagrams
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