Key Led Interface; Vibrator Interface - LG 410G Service Manual

3. H/W Circuit Description

3.11 Key LED Interface

C218
1u
KEY_BACKLIGHT
This handset has 10 LEDs that illuminates blue color.
Control signal is controlled by Locosto with PWM and handset has 3 methods, ON, OFF and dimming.

3.12 Vibrator Interface

LED_B
LED_C
VIBDR
CKEN
REGEN
This handset has vibrator operation. Control signal is controlled by Locosto with PWM.
LGE Internal Use Only
VBAT
R215 R216 R217 R218
100ohm 100ohm 100ohm 100ohm
R229 10K
R231
100K
Figure 3-11 Key LED interface
E17
F17
U12
H12
G12
F16
Figure 3-12 Vibrator interface
R219 R220 R221 R222
100ohm 100ohm 100ohm 100ohm
3
Q200
2
2SC5585
1
CKEN
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- 30 - Copyright © 2009 LG Electronics. Inc. All right reserved.
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R223 R224
C219
100ohm 100ohm
1u
MLED2
MOTOR_P
Only for training and service purposes