Sony MDS-SD1 service manual SELF-DIAGNOSIS Function

Page 2

SELF-DIAGNOSIS FUNCTION

The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for usin g the Self- Diagnosis Function (Error History Display Mode)”.

Procedure for using the Self-Diagnosis Function (Error History Display Mode).

Note: Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least req uired procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, press the MENU/NO button to exit the mode.

1.While pressing the ENTER/YES button and π button, connect the power plug to the outlet, and release the ENTER/YES button and π button.

2.“TEMP CHECK” will be displayed. Press the MENU/NO button to display “Check”.

3.Rotate the –˜+ knob and when “[Service]” is displayed, press the ENTER/YES button.

4.Rotate the –˜+ knob and display “ERR DP MODE”.

5.Pressing the ENTER/YES button sets the error history mode and displays “total rec”.

6.Select the contents to be displayed or executed using the –˜+ knob.

7.Pressing the CD SYNC/MD WM SYNC button will display or execute the contents selected.

8.Pressing the CD SYNC/MD WM SYNC button another time returns to step 5.

9.Pressing the MENU/NO button displays “ERROR DP MODE” and exits the error history mode.

10.To exit the test mode, press the 1/u button. The unit sets into the STANDBY state, the disc is ejected, and the test mode ends.

– 2 –

Image 2

Contents MDM-5A SpecificationsMDS-JE520 MBU-5ASELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Parts No Flexible Circuit Board RepairingSpecification Label Diagrams Table of ContentsDisassembly Exploded ViewsSection Servicing Note JIG for Checking BD Board WaveformRecord Precedure Checks Prior to Parts Replacement and Adjustments Criteria for Determination Measure if unsatisfactoryForced Reset Main Board Component SideCleaning of Objective Lens of Optical Pickup Fluorescent Indicator Tube and Mechanism DeckAttaching the Glass Assembly Fluorescent Indicator TUBE, LED Complete Lighting CheckServicing Position Cause of Retry Occurring conditions Retry Cause Display ModeHigher Bits Lower Bits Hexa BinaryHexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details Section General Front Panel Location of Parts and ControlsFront Panel Section DisassemblyGlass Assy Slider CAM Base Unit and BD BoardSW Board and Loading Motor M103 Setting the Test Mode Section Test ModePrecautions for USE of Test Mode Exiting the Test ModeSelecting the Test Mode GroupFunctions of Other Buttons Operating the Continuous Playback ModeNon-Volatile Memory Mode EEP Mode Test Mode Displays Section Electrical Adjustments Parts Replacement and AdjustmentPrecautions for Adjustments Precautions for Checking Laser Diode EmissinonPrecautions for USE of Optical PICK- UP KMS-260A Creating Continuously Recorded DiscChecks Prior to Repairs Temperature Compensation Offset CheckLaser Power Check Specified ValueFocus Bias Check Play Checking MO Error Rate CheckCD Error Rate Check Self-Recording/playback CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment CD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points Section Diagrams Circuit Boards LocationPB Digital out Block Diagrams BD SectionMDS-SD1 REC DigitalRECDigital Main SectionPBDigital out Waveforms For schematic diagramsFor printed wiring boards Display SectionPrinted Wiring Board BD Section Semiconductor LocationSchematic Diagram BD 1/2 Section Schematic Diagram BD 2/2 Section Schematic Diagram Main 1/2 Section Schematic Diagram Main 2/2 Section Printed Wiring Board Main Section Schematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram Connector Section Printed Wiring Board Connector Section System Control To HCD-SD1MDS-SD1 IC Block Diagrams BD Section IC101IC301 LB1641 IC152 BH6511FS-E2Main Section IC201 UDA1341TS/N2 IC851 M5293L Connector Section IC774 P82B715TD.118IC822 M62016FP-E1 Pin No Pin Name Function IC PIN FunctionsIC101 CXA2523AR RF Amplifier BD Board IC701 M30610MC-A01FP System Control ∝CON Main Board CHAK-IN Section Exploded Views Case and Back Panel SectionPanel SW Board FL901 1-517-804-11 Indicator TUBE, FluorescentFront Panel Section 67 A-4724-619-A Panel BOARD, Complete209 4-988-466-21 Spring ELECTROSTATIC, Leaf Mechanism Deck Section MDM-5AInsulator F Motor ASSY, Sled Base Unit Section MBU-5AHEAD, Over Light Section Electrical Parts List Connector Connector Encoder Main Main FILTER, Line InductorLine Filter FeritePanel Panel SW MANUAL, Instruction CHINESESP,HK Hardware List Accessories & Packing Materials FILTER, Clamp Ferrite CoreMANUAL, Instruction English Screw +BSony Corporation