sony_MDS-JE530_service_manual 维修电路图.pdf

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1、MICROFILM SERVICE MANUAL MINI DISC DECK US Model Canadian Model AEP Model UK Model E Model SPECIFICATIONS MDS-JE530 Model Name Using Similar MechanismMDS-JE520 MD Mechanism TypeMDM-5D Optical Pick-up TypeKMS-260B/J1N U.S. and foreign patents licensed form Dolby Laboratories Licensing Corporation. Ph

2、oto: Black model SystemMiniDisc digital audio system DiscMiniDisc LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Laser outputLess than 44.6 W* * This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm apertu

3、re. Laser diodeMaterial: GaAlAs Revolutions (CLV)400 rpm to 900 rpm Error correctionAdvanced Cross Interleave Reed Solomon Code (ACIRC) Sampling frequency44.1 kHz CodingAdaptive Transform Acoustic Coding (ATRAC) Modulation systemEFM (Eight-to-Fourteen Modulation) Number of channels2 stereo channels

4、Frequency response5 to 20,000 Hz 0.3 dB Signal-to-noise ratioOver 98 dB during playback Wow and flutterBelow measurable limit Input LINE (ANALOG) INJack type: phono Impedance: 47 kilohms Rated input: 500 mVrms Minimum input: 125 mVrms DIGITAL OPTICAL INConnector type: square optical Impedance: 600 n

5、m (optical wave length) DIGITAL COAXIAL INJack type: phono Impedance: 75 ohms Rated input: 0.5 Vp-p, 20% Outputs PHONESJack type: stereo phone Rated output: 28 mW Load impedance: 32 ohms LINE (ANALOG) OUTJack type: phono Rated output: 2 Vrms (at 50 kilohms) Load impedance: Over 10 kilohms DIGITAL OP

6、TICAL OUT Connector type: square optical Rated output: 18 dBm Load impedance: 660 nm (optical wave length) General Power requirements North American model:120 V AC, 60 Hz European model:230 V AC, 50/60 Hz Other models:110 120 V or 220 240 V AC, 50/60 Hz Adjustable with voltage selector Power consump

7、tion16 W Dimension (approx.)430 95 280 mm (w/h/d) incl. projecting parts and controls Mass (approx.)3.4 kg Supplied accessories Audio connecting cords (2) Optical cable (1) Remote commander (remote) RM-D29M (1) R6 (size-AA) batteries (2) 收音机爱好者资料库 Ra d i o Fa n s .CN 2 SELF-DIAGNOSIS FUNCTION The se

8、lf-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 manu

9、al. For details on how to check error codes during servicing, refer to the following “Procedure for using 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 hi

10、story display mode” in the test mode. The following describes the least required 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 AMS knob and p button, connect the power plug to the outlet

11、, and release the AMS knob and p button. 2.Turn the AMS knob and when “Service” is displayed, press the YES button. 3.Turn the AMS knob to display “ERR DP MODE”. 4.Press the YES button to sets the error history mode and displays “total rec”. 5.Select the contents to be displayed or executed using th

12、e AMS knob. 6.Press the AMS knob to display or execute the contents selected. 7.Press the AMS knob another time returns to step 4. 8.Press the MENU/NO button to display “ERROR DP MODE” and exits the error history mode. 9.To exit the test mode, press the REPEAT button. The unit sets into the STANDBY

13、state, the disc is ejected, and the test mode ends. 收音机爱好者资料库 Ra d i o Fa n s .CN 3 Items of Error History Mode Items and Contents Selecting the Test Mode DisplayDetails of History E00No error E01Disc error. PTOC cannot be read (DISC ejected) E02Disc error. UTOC error (DISC not ejected) E03Loading e

14、rror E04Address cannot be read (Servo has deviated) Table of Error Codes Error CodeError CodeDetails of Error total recDisplays the recording time. Displayed as “rh”. The displayed time is the total time the laser is set to the high power state. This is about 1/4 of the actual recording time. The ti

15、me is displayed in decimal digits from 0h to 65535h. total playDisplays the play time. Displayed as “ph”. The time displayed is the total actual play time. Pauses are not counted. The time is displayed in decimal digits from 0h to 65535h. retry errDisplays the total number of retries during recordin

16、g and number of retry errors during play. Displayed as “r p”. “r” indicates the retries during recording while “p” indicates the retry errors during play. The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF. total errDisplays the total number of errors. Displayed

17、 as “total ”. The number of errors is displayed in hexadecimal digits from 00 to FF. err historyDisplays the 10 latest errors. Displayed as “0 E”. indicates the history number. The smaller the number, the more recent is the error. (00 is the latest). indicates the error code. Refer to the following

18、table for the details. The error history can be switched by turning the AMS knob. er refreshMode which erases the “retry err”, “total err”, and “err history” histories. When returning the unit to the customer after completing repairs, perform this to erase the past error history. After pressing the

19、AMS button and “er refresh?” is displayed, press the YES button to erase the history. “Complete!” will be displayed momentarily. Be sure to check the following when this mode has been executed. The data has been erased. The mechanism operates normally when recording and play are performed. tm refres

20、hMode which erases the “total rec” and “total play” histories. These histories serve as approximate indications of when to replace the optical pickup. If the optical pickup has been replaced, perform this operation and erase the history. After pressing the AMS button and “tm refresh?” is displayed,

21、press the YES button to erase the history. “Complete!” will be displayed momentarily. Be sure to check the following when this mode has been executed. The data has been erased. The mechanism operates normally when recording and play are performed. E05FOK has deviated E06Cannot focus (Servo has devia

22、ted) E07Recording retry E08Recording retry error E09Playback retry error (Access error) E0APlayback retry error (C2 error) Details of Error 收音机爱好者资料库 Ra d i o Fa n s .CN 4 SECTION 1 SERVICING NOTES SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check b

23、efore releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts t

24、o any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers.). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2.A batt

25、ery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3.Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simp

26、son 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth G

27、round MODEL IDENTIFICATION BACK PANEL TABLE OF CONTENTS SELF-DIAGNOSIS FUNCTION.2 1.SERVICING NOTES.4 2.GENERAL. 11 3.DISASSEMBLY. 13 4.TEST MODE. 17 5.ELECTRICAL ADJUSTMENTS. 22 6.DIAGRAMS 6-1.Block Diagram MD SERVO Section . 31 6-2.Block Diagram MAIN Section . 33 6-3.Note for Printed Wiring Boards

28、 and Schematic Diagrams . 35 6-4.Printed Wiring Board BD Board . 37 6-5.Schematic Diagram BD Board (1/2) . 39 6-6.Schematic Diagram BD Board (2/2) . 41 6-7.Schematic Diagram SW Board . 44 6-8.Printed Wiring Board SW Board . 44 6-9.Printed Wiring Board MAIN Board . 45 6-10. Schematic Diagram MAIN Boa

29、rd (1/2) . 47 6-11. Schematic Diagram MAIN Board (2/2) . 49 6-12. Printed Wiring Boards PANEL Section . 51 6-13. Schematic Diagram PANEL Section . 53 6-14. IC Pin Function Description . 58 7.EXPLODED VIEWS. 65 8.ELECTRICAL PARTS LIST. 69 Part No. ModelPart No. AEP, UK models4-216-907-0 US model4-216

30、-907-2 Canadian model4-216-907-3 Singapore model4-216-907-5 5 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur- ing repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the

31、 conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. ADVARSEL Eksplosjonsfare ved feilaktig skifte av batteri. Benytt samme batteritype eller en tilsvarend

32、e type anbefalt av apparatfabrikanten. Brukte batterier kasseres i henhold til fabrikantens instruksjoner. VARNING Explosionsfara vid felaktigt batteribyte. Anvnd samma batterityp eller en likvrdig typ som rekommenderas av apparattillverkaren. Kassera anvnt batteri enligt gllande freskrifter. VAROIT

33、US Paristo voi rjht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hvit kytetty paristo valmistajan ohjeiden mukaisesti. ADVARSEL! Lithiumbatteri-Eksplosionsfare ved fejlagtig hndtering. Udskiftning m kun ske med batteri af samme fabrikat og

34、type. Levr det brugte batteri tilbage til leverandren. CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturers instruc- tions. CAUTION Use of controls or adjus

35、tments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Laser component in this product is capable of emitting radia- tion exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PROD- UCT

36、 MARKING is located on the rear exterior. This caution label is located inside the unit. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES CO

37、M- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THE

38、SE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. 6 JIG FOR CHECKING BD BOARD WAVEFORM The special jig (J-2501-149-A) is useful for checking the waveform of the BD board. The names of terminals and the checking items to be performe

39、d are shown as follows. GND: Ground I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the deterioration of the optical pick-up laser) TEO : TRK error signal (Traverse adjustment) VC: Reference level for checking the signal RF: RF signal (C

40、heck jitter) CN110 RF 5P Connector 6P connector VCTEO IOP I+3V GND Mechanism deck RF VC TEO for MDM-3 for MDM-5 IOP I-3V VC RF TEO IOP I+3V GND VC RF TEO IOP I+3V GND 1 5 1 6 7 IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF BD BOARD) ARE REPLACED The IOP value

41、labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC171 of BD board), record the IOP value on the optical p

42、ick-up according to the following procedure. Record Precedure: 1.While pressing the AMS knob and p button, connect the power plug to the outlet, and release the AMS knob and p button. 2.Turn the AMS knob to display “Service”, and press the YES button. 3.Turn the AMS knob to display “lop Write” (C28)

43、, and press the YES button. 4.The display becomes “Ref=.” ( is an arbitrary number) and the numbers which can be changed will blink. 5.Input the IOP value written on the optical pick-up. To select the number: Turn the AMS knob. To select the digit: Press the AMS knob. 6.When the YES button is presse

44、d, the display becomes “Measu=.” ( is an arbitrary number). 7.As the adjustment results are recorded for the 6 value. Leave it as it is and press the YES button. 8.“Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write”

45、. 9.Press the REPEAT button to complete. Display Precedure: 1.While pressing the AMS knob and p button, connect the power plug to the outlet, and release the AMS knob and p button. 2.Turn the AMS knob to display “Service”, and press the YES button. 3.Turn the AMS knob to display “lop Read” (C27). 4.

46、“./#.#” is displayed and the recorded contents are displayed. .: indicates the IOP value labeled on the optical pick-up. #.#: indicates the IOP value after adjustment 5.To end, press the AMS knod or MENU/NO button to display “Iop Read”. Then press the REPEAT button. 8 CHECKS PRIOR TO PARTS REPLACEME

47、NT AND ADJUSTMENTS Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”. 0.9 mW power Specified value : 0.84 to 0.92 mW 7.0 mW power Specified value : 6.8 to 7.2 mW lop (at 7mW) Labeled on the optical pickup Iop value 10mA