Lcd Back-Light Illumination; Vibrator - LG MG295 Service Manual

3. TECHNICAL BRIEF

3.13 LCD Back-light Illumination

LCD backlight LEDs is controlled by AD6721 via AAT3155, U601.
LCD_DIM_CTRL

3.14 VIBRATOR

The vibrator is placed in the folder cover and contacted to LCD MODULE. The vibrator is driven from
VIBRATOR (GPIO_3) of AD6721
VIBRATOR
VIBRATOR
LGE Internal Use Only
VBAT
C615
10u
FB602
MLED
R616
11
1.5K
R617 C621
NA 1u
Figure 3.13 MAIN LCD BACKLIGHT ILLUMINATION
VBAT
R603
10
R611
1.5K
R614
7.5K
Figure 3.14 Vibrator
CHARGE PUMP
U601 AAT3155ITP-T1
5 10
IN C1+
C618
1u
8 9
OUTCP C1-
7
C2+
C620
1u
EN_SET
6
C2-
3
D1
2
D2
1
D3
4 12
GND D4
VBAT
R604
47K
R609
220
MOTOR
C605
Q600
4.7u
EMZ2
Copyright © 2007 LG Electronics. Inc. All right reserved.
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MLED1
MLED2
MLED3
MLED4
Only for training and service purposes