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Flow Chart of Troubleshooting
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9-15
9-8. Back Light (for Color Main LCD)
Is LCD Contrast set on high
level in the Menu?
Set LCD Contrast on high level
END
No
Yes
Yes
Backlight does not work
The HEA600 connected
correctly?
Reconnet correctly
No
Yes
HEA600 PIN 44 is ' High ' ?
Yes
Change the main PBA
No
Is Backlight working ?
No
Change the LCD
Yes