LG GSA-5163D Service Manual page 75

3. Motor, Abnormalities in Actuator System
The drive circuit of a motor & actuator consists of the three ICs IC601 (M63041AFP). The work of each IC is
as follows.
(1) IC601(M63041AFP) : 7ch driver
Spindle motor driver: 180° audio drive Type, an analog input, a PWM drive, a Vm=12V.
Stepping motor driver X2: analog input, a PWM drive (differential), a Vm=12V
Loading motor driver: Input/Output PWM drive, Vm=5V.
Focus actuator driver: analog input / output (differential), a Vm=5V
Tracking actuator driver: analog input / output (differential), Vm=5V
Tilt actuator driver : analog input/output (differential), Vm=5V.
A motor & actuator and its correspondence pin
Signal/CH SPDL-MT
Input
Reference
Output
A control mode setup by the control terminal
EN1(20)
Low
Low
High
High
STEP-MT
(1)SPIN (2)SL1IN
(3)SL2IN
(12)U (6)SL2+
(13)V (8)SL2-
(14)W (9)SL1+
(10)SL1-
EN2(21) SPDL
Low off
High off
Low on
High on
Load-MT Focus-ACT
(41)LOIN (40)FOIN
(42)REF 1.65V
(27)LO+ (34)FO+
(28)LO- (35)FO-
SLED
off
on
on
on
Track-ACT
(39)TOIN
(31)TO+
(30)TO-
Load Focus/Track/Tilt
off off
on off
off on
off on
Tilt-ACT
(38)TLIN
(36)TL+
(37)TL-
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