Keypad Light - LG CU405 Service Manual

3. TECHNICAL BRIEF

3.14.7 Keypad Light

There are 16 White LEDs in Main board backlight circuit, which are driven by KPD_DRV_N
line from PM6650.
KYBD_BACKLIGHT
LGE Internal Use Only
KEY_BACK_LIGHT LED(16EA)
+VPWR
LD601
R604
100ohm
LEBB-S14H
LD604
R607
100ohm
LEBB-S14H
LD607
R610
100ohm
LEBB-S14H
LD610
R613
100ohm
LEBB-S14H
LD613
R616
100ohm
LEBB-S14H
Figure. Keypad Backlight Circuit
LD602
R605
100ohm
LEBB-S14H
LD605
R608
100ohm
LEBB-S14H
LD608
R611
100ohm
LEBB-S14H
LD611
R614
100ohm
LEBB-S14H
LD614
R617
100ohm
LEBB-S14H
Copyright © 2007 LG Electronics. Inc. All right reserved.
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LD600
R603
100ohm
LEBB-S14H
LD603
R606
100ohm
LEBB-S14H
LD606
R609
100ohm
LEBB-S14H
LD609
R612
100ohm
LEBB-S14H
LD612
R615
100ohm
LEBB-S14H
LD615
R618
100ohm
LEBB-S14H
Only for training and service purposes