Sony S530D manual Power on Mechanical Sequence DVD Disc

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	Power ON Mechanical Sequence – DVD Disc

	Operation	Purpose

1.	Power On button is pressed.	IC202 retrieves start up program from Flash ROM IC205. After the
		ICs are checked for basic communications, IC202 instructs Servo
		IC701 to start the mechanical sequence. The servo parameters are
		stored in EEProm IC201.

2.	Disc tray is closed (if open) and placed into a	Clamps a disc on the spindle motor platform.
	chucked position.

3.	Sled moves the optical assembly to home position.	Sled starting point.

4.	Tilt Motor resets laser platform to mid position.	Presets the laser beam perpendicular to the disc for max RF.

5.	Sled moves outward quickly then slows down.	Optical assembly is moving under the disc’s information area.

6.	Laser is turned ON momentarily during focus search.	Looks for a disc. Reflected light identifies a disc.

7.	Focus search one time.	Optical assembly lens moves up then down, counting the number of
		disc layers.

8.	Sled stops moving when a disc Is identified.

9.	Spindle motor rotates.	Rotates the disc.

10. Laser is turned ON a second time.		To begin playback.

11.	Focus search.	Focuses on the first information layer on the disc.

12.	Focus servo is turned ON.	Maintains focus on the layer.

13.	Tracking begins.	Keeps the laser beam at the information track’s center.

14.	Tilt motor servo starts.	Maintains high RF level.

15.	Disc PB begins. Display shows elapsed time.	Playback verification.

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Contents Course DVD-02 Course Description and Troubleshooting Page Table of Contents Processing Laser Servo Test Mode KHM-220A DVD Optical Block Troubleshooting Disc IdentificationInitial Sled Motor Drive Processing BlockIntroduction to the DTS Audio Format DVD, LDVHS DVD, LD, DTVWhat is DTS? What do I need to play the DTS surround format?CD/DVD Player Channel Receiver With DTS Decoder AC-3 DecoderCan DVD movies contain both DTS and AC-3 audio tracks? How does DTS work?Compression Adaptive Predictive Coding AdpcmMultiplexer PackerCompression Block Global Bit ManagementBoard Layout DVD Features DVPBlock Diagram Power SupplyCommunications Servo ControlBlock Diagram Video and Audio Processing ARP2Block Diagram Power Supply Block Standby Power SupplyMain Power Supply Power ConsumptionPower Supply Block Standby Oscillator StartRun Regulation ConceptStandby Oscillator Main Oscillator EnableRegulation Main Oscillator Power Control PlugIC201 IC202 Communications Waveforms PcontPower Control Post Power on Check Power Control Parallel Data Communications BlockSerial Data Communications Block Serial Data Communications Serial BusInterface IC201 EEProm IC201Serial Data Communications Audio DSP IC501 Serial Data Communications Chip Select Line Parallel Data CommunicationsHGA IC601 Parallel Data Communication Communications from IC202 to Other ICs Communications from Another IC to IC202Parallel Data Communication Mechanism No Power Tray Removal From the BottomDisc Tray and Laser Platform Position Tilt Motor No Power Tray Removal From the TopSled Position Focus Coil LaserPower on Mechanical Sequence No Disc Power on Mechanical Sequence DVD Disc Page Tray Motor Drive Interface Controller IC201 Recognizes the Tray ButtonIC201 Turns On the Display IC201 Communicates with System Control IC202Tray Motor Drive Tray Position Switch Returns Information to IC201 Driver IC802 Translates the CommandIC202 Instructs Hybrid Gate Array IC601 Tray Motor Drive Initial Sled Motor Drive Initial Sled MovementSystem Control IC202 uses HGA IC601 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 Sled Driver IC802 Sends Voltages to the Stepper Sled Motor Home Position DetectionSled Drive Mute/Inhibit Initial Sled Motor Drive Laser Servo System Control IC202 and HGA IC601 CommunicationsHGA IC601 to Servo DSP IC701 Communications Servo DSP IC701 to RF Amplifier IC001 CommunicationsLaser Servo DVD Focus KHM-220A DVD Optical BlockCD Focus Three Laser Beams from One Laser Photo Detectors TE +, TZCPage Sacd Disc Type Disc IdentificationOperation Disc Identification Concept Search FocusServo Focus Focus Drive Focus Search CommunicationsSystem Control IC202 to Servo IC701 System Control IC202 to HGA IC701Focus HGA IC601 to Servo IC701 SdcpsFocus Spindle Motor Kick ModeDVD Spindle Motor MDS CLV PB ModeMDP Spindle Motor Track Counting in Pause or Picture Jump Tracking ServoSystem Control IC202 Uses HGA IC601 Tracking Servo IC Summary Chart Sled Motor Drive PBSled Movement to Another Location Following the TrackSled Motor Drive PB Tilt Servo Tilt UPTilt to Mid Position ICs InvolvedTilt Servo Manually Driving the Tilt Motor Power OFFDVD Playback Tilt Servo Audio/Video Processing Block Process Blocks Processing RF Amp IC001Processing Flash ROM IC205 Video Process Converters IC902, IC905 IC907 CH78OCH12O CH34OAudio Processing Test Mode Access Test ModeTests Test Mode Access Additional Test Mode Self-Diagnostic Function Customer Error CodesVideo Level Adjustment 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