Key Back-Light Illumination - LG KP110 Service Manual

3. TECHNICAL BRIEF

3.9 Key Back-light Illumination

In key back-light illumination, there are 6 Blue LEDs in Main Board, which are driven by
nKEY_BACKLIGHT signal from AD6724.
KEY BACKLIGHT
nKEY_BACKLIGHT
LGE Internal Use Only
EDLH0004501
LEBB-S14E
LD201
LEBB-S14E
LD202
LEBB-S14E
LD203
LEBB-S14E
LD204
LEBB-S14E
LD205
LEBB-S14E
LD206
Figure 3.12 KEY BACK-LIGHT ILLUMINTION
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VBAT VBAT
R220 100ohm
R221 100ohm
R222 100ohm
100ohm
R225
100ohm
R228
100ohm
R229
C240
C239
0.1u
0.1u
ECZH0003103
ECZH0003103
(10V,K,X7R)
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