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Flow Chart of Troubleshooting
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7-15
7-9. Key Back Light
Yes
Replace The PBA Module
No
HEA501 pin 20
Voltage = "3.05"?
Key Backlight does not work
Yes
Yes
No
END
Set BACKLIGHT on AlwaysON
Is BACKLIGHT set
AlwaysON in the Menu?
Replace Key_FPCB
Yes