Key Back-Light Illumination; Lcd Back-Light Illumination - LG 512W Service Manual

3. TECHNICAL BRIEF

3.16 Key Back-light Illumination

In key back-light illumination, there are 8 green LEDs in Main Board, which are driven by
KEY_BACKLIGHT line from the AD6522.

3.17 LCD Back-light Illumination

In LCD back-light illumination, there is an EL driver in FPCB Board and EL sheet in LCD Module,
which is driven by LCD_BACKLIGHT line from the AD6522.
Figure 3-17. Key Back-light Illumination.
Figure 3-18. LCD Back-light Illumination.
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