3.Motor, Abnormalities in Actuator System

The drive circuit of a motor & actuator consists of the three ICs IC601(R2S30202FP). The work of each IC is as follows.

(1)IC601(R2S30202FP) : 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

 

STEP-MT

Load-MT

Focus-ACT

Track-ACT

 

Tilt-ACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

 

(1)SPIN

 

(2)SL1IN

(41)LOIN

(40)FOIN

(39)TOIN

 

(38)TLIN

 

 

 

 

 

(3)SL2IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reference

 

 

 

 

(42)REF 1.65V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

 

(12)U

 

(6)SL2+

(27)LO+

(34)FO+

(31)TO+

 

(36)TL+

 

 

 

(13)V

 

(8)SL2-

 

(28)LO-

(35)FO-

(30)TO-

 

(37)TL-

 

 

 

(14)W

 

(9)SL1+

 

 

 

 

 

 

 

 

 

 

 

 

 

(10)SL1-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A control mode setup by the control terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EN1(20)

 

EN2(21)

 

SPDL

 

SLED

 

Load

 

Focus/Track/Tilt

 

Low

 

Low

 

off

 

off

 

off

 

 

off

 

Low

 

High

 

off

 

on

 

on

 

 

off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High

 

Low

 

on

 

on

 

off

 

 

on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High

 

High

 

on

 

on

 

off

 

 

on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90

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LG Electronics GSA-4165B, GSA-4168B, GSA-4167B Motor, Abnormalities in Actuator System, IC601R2S30202FP 7ch driver

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