Vibrators (Q-Coin Motor) - LG -E730 Service Manual

3.14 Vibrators (Q-Coin Motor)

The strength of vibration is determined by the duty cycle of PWM
U700 is Q-Coin motor driver amplifier IC.
VREG_MOTOR_3.3V
Q700 C
B
VIB_PWM
IN
E
LGE Internal Use Only
R703 100K
C2
-IN
1%
A2
+IN
OUT
A1
SHDN
C1
BYP
GND
Vibrator Circuit & Drive Amplifier circuit
R700 100K
1%
B3
VDD
C3
OUT+
U700
A3
OUT-
B1
GND1
B2
GND2
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3. TECHNICAL BRIEF
+VPWR
Changed at REVC
FB700 75
FB701 75
C707
1u
Only for training and service purposes
MOTOR_P
MOTOR_N
VIB_N