Lcd Back-Light Illumination - LG G5300 Service Manual

3.18 LCD Back-light Illumination

In LCD Back-light illumination, there is a driver in FPCB of LCD Board, which is driven by
BACKLIGHT line from AD6522.
LCD_BACKLIGHT
Figure 3-33. LCD back-light and pre-charge indication illumination.
LCD BACKLIGHT
U201
MAX4599EXT-T
Q204
IMX9T110
R228
6 1
1.5K
5 2
4 3
RPWRON
ONNOFF
4.7uF 2012 X7R
C18
LT1937
FB
1MR 1618X5R
C19
R5
OHM 1005 1Z
Figure 3-34. LCD back-light illumination.
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3. TECHNICAL BRIEF
VBAT
0.1u
C205
NO 6
5 COM
R220
NC 4
C210
0.1u
R250
NC
R251
0
VBAT
ICI
A 1
ZD1
B 2
BACKLIGHT
10K
VCHARGE