Sony S530D manual Troubleshooting, No Power on

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Troubleshooting

When the model DVP-S530 DVD player is first plugged in and turned on, several things occur before “NO DISC” is displayed on the front panel. One operation is performed after the next until it reaches the end of the chain. A failure will prevent it from reaching the end and often a side trip is taken to protect the unit by shutting down. Finding out where in the chain the unit has stopped will help locate the failure. Below is a general description of the start-up operations followed by problems and answers. Use the information below as a troubleshooting guide to remain on track throughout your testing.

 

Operations

Details found in:

 

 

 

1.

DVD Player is plugged in and the power button is pressed.

Power Control section of the training book

 

 

 

2.

Communications between Interface IC201 and Syscon IC202 on

Power Control section

 

the serial bus.

 

 

 

 

3.

Front panel blue Digital Dolby indicator lights.

Power Control section

 

 

 

4.

Communications with other ICs on the parallel bus.

Parallel Data Communications section

 

 

 

5.

SONY DVD appears on the fluorescent display.

Power Control section

 

 

 

6.

Sensors are checked and the Transport is returned to the initial

Mechanism section

 

state (tray is closed, sled goes to home position).

 

 

 

 

7.

Sony DVD logo appears on the monitor (OSD).

See no logo problem listed below.

 

 

 

8.

Search for a disc is initiated using the focus search operation and

Use the Test Mode section in the service manual to

 

other servos

test the Laser, Focus, Spindle and Tracking servos.

 

 

Then see the problem servo section.

 

 

 

9.

NO DISC is displayed in the fluorescent display.

Serial Data Communications / Power Control section

 

 

 

GENERAL PROBLEMS AND TROUBLESHOOTING GUIDE

No Power ON

1.Unplug unit and press the POWER button to discharge the power supply.

2.Watch the front panel Dolby Digital indicator while plugging the unit into AC. If there is Interface IC201 to Syscon IC202 serial communi- cations, the blue indicator will light momentarily. See the Power Con- trol section for details.

To check the Interface IC201 alone (without IC202), use the proce- dure in the test mode section of this book (last paragraphs).

3.Press the power ON button. If the unit does not remain ON, there is a loss of communication between Syscon IC202 and a slave IC or the servo IC701 failed to reset the mechanism.

Communications occur when Syscon IC202 Chip Selects several ICs, sends data and waits for an interrupt reply from each. Use the scope to look for a low interrupt reply pulse at these ICs highlighted (in bold) while repeatedly pressing the power button to reinitiate the sequence:

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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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