Sony S530D manual Spindle Motor, Kick Mode, Dvd

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Spindle Motor

The spindle motor has a “kick” mode and a run mode. The kick mode is used to start and stop the motor, bringing the motor up to speed or to a stop quickly. The CLV PB mode utilizes the pits on the disc surface to regulate the spindle motor speed.

Kick Mode

IC202 issues the kick command to start or stop the spindle motor. After- wards, all of the ICs in the Spindle Motor diagram are used in the kick mode except for IC001.

IC202

In the start program, System Control IC202 kicks (starts) the spindle mo- tor after focus is found (or after the optical assembly sleds to home posi- tion without a disc). This kick command is written to IC601 using:

·Chip select CS4 from IC202/pin 7 (low going)

·Clock from IC202/pin 5

·Write from IC202/pin 24 (low going)

·Address and Data on the parallel bus

IC601

Gate Array IC601 transfers this kick command to ARP2 IC303 using simi- lar communications:

·Chip select CS4 from IC601/pin 111 (low going)

·Common bit clock from PLL IC001/pin 1

·Write from IC601/pin 109 (low going)

·Address and Data on the parallel bus

IC303

ARP2 IC303 produces pulses at pins 49 and 52 to control the spindle motor. These motor drive speed (MDSO) and motor drive phase (MDPO) outputs are tri state voltages, combined by R820 and R822 to current drive IC802.

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Tri State Voltages from IC303/pins 49 or/and 52

Output

Spindle motor Direction

 

 

Open Circuit (1.6V external bias)

No rotation

 

 

3.3V (pulse)

Forward

 

 

0V (pulse)

Slows down

 

 

During start, both outputs at IC303/pins 49 and 52 are at 3.3V to bring the motor up to approximate data speed.

IC802

Spindle motor Driver IC802 takes the combined speed and phase volt- ages input pin 26 and amplifies them. The differential DC voltage output from IC802/pins 15 and 16 are applied to the spindle motor for rotation. The higher the voltage, the faster the spindle motor rotates.

Spindle Motor Voltage

 

CD

DVD

 

 

 

Start/Stop (kick)

5V (approx.)

6.3V (approx.)

 

 

 

Disc Inside PB

1.6V

2.8V

 

 

 

Disc Outside PB

0.98

1.5V

 

 

 

IC803

FG amplifier IC803 outputs a signal during a sudden spindle motor speed change. This start/stop conformation signal is returned to IC202 via IC701 and IC601 as a completion of the issued command.

IC701 and IC601

The comparators in Servo IC701 use the voltage change at pin 65 to determine when the spindle motor has started or stopped. This is be- cause IC303 in the kick chain is multi tasking and will be busy at start up. IC701’s kick confirmation signal is sent to IC601, which transfers it to System Control IC202. IC202 issues a kick stop signal after a fixed time. The kick time duration depends upon the disc type detected. A DVD is spun faster and consequently is kicked longer. After the kick mode, a new command is issued to start the spindle motor servo in the run mode.

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Contents Course DVD-02 Course Description and Troubleshooting Page Table of Contents Initial Sled Motor Drive Processing Laser Servo Test Mode KHM-220A DVD Optical BlockTroubleshooting Disc Identification Processing BlockVHS Introduction to the DTS Audio FormatDVD, LD DVD, LD, DTVCD/DVD Player What is DTS?What do I need to play the DTS surround format? Channel Receiver With DTS Decoder AC-3 DecoderCompression Can DVD movies contain both DTS and AC-3 audio tracks?How does DTS work? Adaptive Predictive Coding AdpcmCompression Block MultiplexerPacker Global Bit ManagementBoard Layout DVD Features DVPCommunications Block DiagramPower Supply Servo ControlBlock Diagram Video and Audio Processing ARP2Block Diagram Main Power Supply Power Supply BlockStandby Power Supply Power ConsumptionPower Supply Block Run Standby OscillatorStart Regulation ConceptStandby Oscillator Enable Main OscillatorRegulation Main Oscillator IC201 IC202 Communications Waveforms Power ControlPlug PcontPower Control Post Power on Check Power Control Communications Block Parallel DataSerial Data Communications Block Interface IC201 Serial Data CommunicationsSerial Bus EEProm IC201Serial Data Communications Audio DSP IC501 Serial Data Communications Parallel Data Communications Chip Select LineHGA IC601 Parallel Data Communication Communications from IC202 to Other ICs Communications from Another IC to IC202Parallel Data Communication No Power Tray Removal From the Bottom MechanismDisc Tray and Laser Platform Position No Power Tray Removal From the Top Tilt MotorSled Position Focus Coil LaserPower on Mechanical Sequence No Disc Power on Mechanical Sequence DVD Disc Page IC201 Turns On the Display Tray Motor DriveInterface Controller IC201 Recognizes the Tray Button IC201 Communicates with System Control IC202Tray Motor Drive Driver IC802 Translates the Command Tray Position Switch Returns Information to IC201IC202 Instructs Hybrid Gate Array IC601 Tray Motor Drive System Control IC202 uses HGA IC601 Initial Sled Motor DriveInitial Sled Movement HGA IC601 Instructs Servo DSP IC701Initial Sled Motor Drive Servo DSP IC701 Issues Analog Commands to Driver IC802 Sled Still Sled OutwardInitial Sled Motor Drive Home Position Detection Sled Driver IC802 Sends Voltages to the Stepper Sled MotorSled Drive Mute/Inhibit Initial Sled Motor Drive HGA IC601 to Servo DSP IC701 Communications Laser ServoSystem Control IC202 and HGA IC601 Communications Servo DSP IC701 to RF Amplifier IC001 CommunicationsLaser Servo KHM-220A DVD Optical Block DVD FocusCD Focus Three Laser Beams from One Laser Photo Detectors TE +, TZCPage Disc Identification Sacd Disc TypeOperation Disc Identification Concept Focus SearchServo Focus System Control IC202 to Servo IC701 Focus DriveFocus Search Communications System Control IC202 to HGA IC701Focus HGA IC601 to Servo IC701 SdcpsFocus Kick Mode Spindle MotorDVD Spindle Motor CLV PB Mode MDSMDP Spindle Motor Tracking Servo Track Counting in Pause or Picture JumpSystem Control IC202 Uses HGA IC601 Tracking Servo Sled Movement to Another Location IC Summary ChartSled Motor Drive PB Following the TrackSled Motor Drive PB Tilt to Mid Position Tilt ServoTilt UP ICs InvolvedTilt Servo Power OFF Manually Driving the Tilt MotorDVD Playback Tilt Servo Audio/Video Processing Block Process Blocks Processing RF Amp IC001Processing Flash ROM IC205 Video Process CH12O Converters IC902, IC905 IC907CH78O CH34OAudio Processing Test Mode Test Mode AccessTests Test Mode Access Video Level Adjustment Additional Test ModeSelf-Diagnostic Function Customer Error Codes Clearing Emergency CodesPage Troubleshooting No Power onNo DVD OSD logo No DVD PB CD PB OKNo DVD DL PB other discs PB OK No Disc PB
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