LG KU730 Service Manual page 57

3. TECHNICAL BRIEF
3.11.7 Keypad Light
There are 18 blue LEDs in Main key board backlight circuit, which are driven by KPD_BACKLIGHT
line form PM6650.
KYBD_BACKLIGHT
KEY_BACK_LIGHT (18EA)
+VPWR
LD600
R606
100
LEBB-S14H
LD603
R609
100
LEBB-S14H
LD606
R612
100
LEBB-S14H
LD609
R615
100
LEBB-S14H
LD612
R618
100
LEBB-S14H
LD615
R621
100
LEBB-S14H
Figure. Keypad Backlight Circuit (MAIN)
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LD601
R607
100
LEBB-S14H
LD604
R610
100
LEBB-S14H
LD607
R613
100
LEBB-S14H
LD610
R616
100
LEBB-S14H
LD613
R619
100
LEBB-S14H
LD616
R622
100
LEBB-S14H
LD602
R608
100
LEBB-S14H
LD605
R611
100
LEBB-S14H
LD608
R614
100
LEBB-S14H
LD611
R617
100
LEBB-S14H
LD614
R620
100
LEBB-S14H
LD617
R623
100
LEBB-S14H