User Guide

5-19 Flow chart of Troubleshooting and Circuit Diagram

5-11 Back Light (for Key)

Backlight does not work

Select backlight "ON" mode

Backlight "ON" mode

in the menu?

R215 = "H" ? GPO1 by test S/W

Ye s

Resolder R215,R216

or resolder Q200

Q200 pin 3 = "L" ?

Ye s

END

Key PCB LED on ?

Resolder R207~214

and LAMP200~207