IC BLOCK DIAGRAM & DESCRIPTION
IC101 LA9241ML (Servo Signal Processor)
No. Pin Name I/OFunctionNo. Pin Name I/OFunction
1FIN2I Connection Pin for Photo Diode of Pickup.34TGLI Input Pin for Tracking Gain Control Signal from
2FIN1I FIN2 + FIN1 = RF, FIN2 - FIN1 = FEDigital Signal Processor. TGL = H : Gain Low
3EI Connection Pin for Photo Diode of Pickup.35TOFFI Input Pin for Tracking Off Control Signal from Digital
4FI E - F = TESignal Processor. TOFF = H : OFF
5TBI Input Pin for DC ingredient of TE Signal.36TESO Output Pin for Track Error Sense Signal to Digital
6TE-I Connection Pin for Gain Setting Resistor of TESignal Processor.
Signal to TE Signal Pin.37HFLI High Frequency Level Signal Use Detection
7TEO Output Pin for Tracking Error Signal.Main-Beam Position is on the pit or mirror.
8TESII Input Pin for Track Error Sense Comparator.38SLOFI Input Pin for Sled Servo Off Control.
TE Signal through Band Pass, and Inputted.39CV-I Input Pin for Constant Linear Velocity Error
9SCII Input Pin for Shock Detection.40CV+I Signal from Digital Signal Processor.
10THI Connection Pin for Time Constant Setting of 41RFSMO Output Pin for RF Signal.
Tracking Gain.42RFS-I Connection Pin for Gain Setting of RF and
11TAO Output Pin for TA Amplifier.Constant Setting of 3T Compensation of the
12TD-I Connection Pin for Constant Tracking PhaseEFM Signal with RFSM Pin.
Compensation, Consist of between TD and VR.43SLCO Slice Level Control Signal is Output Pin.
13TDI Connection Pin for Constant of Tracking PhaseIt Control Level of Data-Slice by Digital Signal
Compensation.Processor of the RF Waveform.
14JPI Connection Pin for Amplitude Setting of Tracking44SLII Input Pin for Level Control of Data-Slice by
Jump (Kick Pulse) Signal.Digital Signal Processor.
15TOO Output Pin for Tracking Control Signal.45DGND- Ground for Digital Signal.
16FDO Output Pin for Focusing Control Signal.46FSCO Output Pin for Focus Search Smooth Condenser
17FD-I Connection Pin for Constant of Focusing Phase47TBCO Connection Pin for Variable Range Setting of
Compensation, Consist of between FD and FA.EF Balance.
18FA+I Connection Pin for Constant of Focusing Phase48NC- No Connect
Compensation, Consist of between FD- and FA-.49DEFO Output Pin for Defect Detection of Disc.
19FA-I Connection Pin for Constant of Focusing Phase50CLKI Input Pin for Reference Clock Pulse.
Compensation, Consist of between FA and FE.(4.23 MHz of Digital Signal Processor)
20FEO Output Pin for Focusing Error Signal.51CLI Input Pin of Clock Pulse for Command from
21FE-I Connection Pin for Gain Setting Resistor of FEMicro Processor.
Signal to FE Signal Pin.52DATI Input Pin of Data for Command from Micro
22AGND- G round for Analog Signal.Processor.
23SPO Output Pin for Single End of Input Signal of the53CEI Input Pin of Chip Enable for Command from Micro
CV+, CV- Pin.Processor.
24SPII Input Pin for Spindle Amplifier.54DRFO Output Pin for Detect of RF Level.
25SPGI Connection Pin for Gain Setting Resistor, when55FSSI Select Pin for Focus Search Mode
Spindle 12 cm Mode.56VCC2- VCC for Servo and Digital Root.
26SP-I Connection Pin for Constant of Spindle Phase57REFII Bus Control Connection Pin for Reference Voltage.
Compensation with SPD Pin.58VRO Output Pin for Reference Voltage.
27SPDO Output Pin for Spindle Control Signal.59LF2I Connection Pin for Time Constant Setting of
28SLEQI Connection Pin for Constant of Sled PhaseDetect Detection of the Disc.
Compensation.60PH1I Capacitor Connection Pin for Peak-hold of RF Signal.
29SLDO Output Pin for Sled Control Signal.61BH1I Capacitor Connection Pin for Bottom-hold of
30SL-I Input Pin for Sled Signal from Micro Processor.RF Signal.
31SL+I62LDDO Output Pin of APC (Automatic Power Control) Circuit.
32JP-I Input Pin for Tracking Jump Signal from Digital63LDSI Input Pin of APC (Automatic Power Control) Circuit.
33JP+I Signal Processor.64VCC1I VCC for RF Root.
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ACEC
