索尼 sony_MDS-JA333ES_service_manual 电路图 维修手册.pdf

SERVICE MANUAL MINIDISC DECK Continued on next page SPECIFICATIONS US Model Canadian Model AEP Model UK Model Model Name Using Similar Mechanism MDS-JA555ES MD Mechanism Type MDM-6J Base Unit Type MBU-5J Optical Pick-up Type KMS-260B/J1N MDS-JA333ES U.S. and foreign patents licensed from Dolby Laboratories Licensing Corporation. Photo : GOLD System MiniDisc digital audio system Disc MiniDisc Laser Semiconductor laser ( l = 780 nm) Emission duration: continuous Laser output MAX 44.6 W 1 ) 1) 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 aperture. Laser diode Material: GaAlAs Revolutions (CLV) 400 rpm to 900 rpm Error correction ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Coding ATRAC (Adaptive TRansform Acoustic Coding)/ATRAC 3 Modulation system EFM (Eight-to-Fourteen Modulation) Number of channels 2 stereo channels Frequency response 5 to 20,000 Hz ±0.3 dB Signal-to-noise ratio Over 100 dB during play Wow and flutter Below measurable limit Inputs ANALOG IN Jack type: phono Impedance: 47 k W Rated input: 500 mVrms Minimum input: 125 mVrms DIGITAL IN OPT1 Connector type: square optical Impedance: 660 nm (optical wave length) DIGITAL IN OPT2 Connector type: square optical Impedance: 660 nm (optical wave length) DIGITAL IN COAXIAL Jack type: phono Impedance: 75 W Rated input: 0.5 Vp-p, ±20 % Outputs PHONES Jack type: stereo phone Rated output: 28 mW Load impedance: 32 W ANALOG OUT Jack type: phono Rated output: 2.5 Vrms (at 50 k W ) Load impedance: over 10 k W2 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.After correcting the original service problem, perform the following safety checks before 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. LEAKAGEThe AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). 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 battery-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” indication is 0.75 V , so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY CHECK-OUT T o Exposed Metal Parts on Set 0.15 F 1.5 k AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the equipment manufacturer. Discard used batteries according to manufactures instructions. ADVARSEL! Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren. ADVARSEL Eksplosjonsfare ved feilakting skifte av batteri. Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten. Brukte batterier katterier kasseres i henhold til fabrikantens VARNIG Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en likvärdig typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt gällande föreakrifter. VAROITUS Parist voi räjähtää, jos se on virheellisesti asennettu. V aihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti. DIGITAL OUT OPTICAL Connector type: square optical Rated output: 18 dBm Load impedance: 660 nm (optical wave length) DIGITAL OUT COAXIAL Jack type: phono Rated output: 0.5 Vp-p (at 75 W ) Load impedance: 75 W General Power requirements Where purchased Power requirements US, Canadian 120 V AC, 60 Hz AEP, UK 230 V AC, 50/60 Hz Power consumption 20 W Dimensions (approx.) 430 · 123.5 · 375.5 mm (17 · 4 7 /8 · 14 7 /8 in.) (w/h/d) incl. projecting parts and controls Mass (approx.) 10.5 kg (23 lbs 15 oz) Supplied accessories Audio connecting cords (2) Optical cable (1) Remote commander (remote) (1) R6 (size-AA) batteries (2) Design and specifications are subject to change without notice.3 This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. The following caution label is located inside the unit. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270C during 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 conductor when soldering or unsoldering. MODEL IDENTIFICATION BACK PANEL Parts No. 4-228-930-1 : AEP, UK model 4-228-930-2 : US model 4-228-930-3 : Canadian model TABLE OF CONTENTS 1. SERVICING NOTE ·························································· 6 2. GENERAL ········································································ 12 3. DISAssembly 3-1. Case ·················································································· 16 3-2. Loading Panel ··································································· 16 3-3. Front Panel Assembly ······················································· 17 3-4. MD Mechanism Deck ······················································ 17 3-5. Tray Assembly ·································································· 18 3-6. BU Holder Assembly ························································ 19 3-7. Motor (Loading) Assembly (M10) ··································· 19 3-8. Base Unit (MBU-5J) ························································ 20 3-9. BD Board ·········································································· 20 3-10. Over Light Head (HR901) ················································ 21 3-11. Mini Disc Device (KMS-260B/J1N) ································ 21 4. TEST MODE ···································································· 22 5. ELECTRICAL ADJUSTMENTS ······························· 27 6. DIAGRAMS 6-1. Block Diagrams ································································ 37 Main Section····································································· 37 Display/Power Supply Section ········································· 38 6-2. Circuit Board Location ····················································· 39 6-3. Printed Wiring Board BD Section ·································· 40 6-4. Schematic Diagram BD Section (1/2) ··························· 41 6-5. Schematic Diagram BD Section (2/2) ··························· 42 6-6. Schematic Diagram BD Switch Section ························ 43 6-7. Printed Wiring Board BD Switch Section ······················· 43 6-8. Printed Wiring Board AD Section ································ 44 6-9. Schematic Diagram AD Section ···································· 45 6-10. Printed Wiring Board DIO Section ······························ 46 6-11. Schematic Diagram DIO Section ·································· 47 6-12. Printed Wiring Board DA Section ································· 48 6-13. Schematic Diagram DA Section ··································· 49 6-14. Printed Wiring Board DIGITAL Section ······················· 50 6-15. Schematic Diagram DIGITAL Section ························ 51 6-16. Schematic Diagram HP Section ··································· 52 6-17. Printed Wiring Board HP Section ································ 53 6-18. Schematic Diagram POWER Section ·························· 54 6-19. Printed Wiring Board POWER Section ························ 55 6-20. Printed Wiring Board PANEL Section ························· 56 6-21. Schematic Diagram PANEL Section ···························· 57 6-22. Printed Wiring Board AC Section ································ 58 6-23. Schematic Diagram AC Section ··································· 59 6-22. IC Block Diagrams ··························································· 61 6-23. IC PinFunction Description ·············································· 66 7. EXPLODED VIEWS 7-1. Upper Case Assembly ······················································ 73 7-2. Front Panel Assembly ······················································· 74 7-3. Chassis Assembly ····························································· 75 7-4. Mechanism Deck Assembly-1 (MDM-6J) ······················· 76 7-5. Mechanism Deck Assembly-2 (MDM-6J) ······················· 77 7-6. Base Unit (MBU-5J) ························································ 78 8. ELECTRICAL PARTS LIST ······································· 794 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 using the Self- Diagnosis Function (Error History Display Mode)”. The decks self-diagnosis function automatically checks the condition of the MD deck when an error occurs, then issues a three- or five-digit code and an error message on the display. If the code and message alternate, find them in the following table and perform the indicated countermeasure. Should the problem persist, consult your nearest Sony dealer. 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 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 l AMS L knob and x button, connect the power plug to the outlet, and release the l AMS L knob and x button. When the test mode is set “Check” is displayed. 2. Turn the l AMS L knob and when “Service” is displayed, press the YES button. 3. Turn the l AMS L knob to display “Err Display”. 4. Press the YES button to sets the error history mode and displays “op rec tm”. 5. Select the contents to be displayed or executed using the l AMS L knob. 6. Press the l AMS L knob to display or execute the contents selected. 7. Press the l AMS L knob another time to return to step 4. 8. Press the MENU/NO button to display “Err Display” and release the error history mode. 9. To release the test mode, press the REPEAT button. The unit sets into the STANDBY state and the test mode ends. Three- or five- digit code/ Message Cause/Remedy C11/Protected The inserted MD is record-protected. Take out the MD and close the record- protect slot. C12/Cannot Copy You tried to record a CD with a format that the external device connected to the deck does not support, such as CD-ROM or video CD. Remove the disc and insert a music CD. C13/REC Error The recording was not made properly. Set the deck in a stable surface, and repeat the recording procedure. The inserted MD is dirty (with smudges, fingerprints, etc.), scratched, or substandard in quality. Replace the disc and repeat the recording procedure. C13/Read Error The deck could not read the TOC on the MD properly. Take out the MD and insert it again. C14/Toc Error The deck could not read the TOC on the MD properly. Insert another disc. If possible, erase all the tracks on the MD. C41/Cannot Copy The sound source is a copy of commercially available music software, or you tried to record a CD-R (Recordable CD). The Serial Copy Management System prevents making a digital copy. You cannot record a CD-R. C71/Din Unlock The sporadic appearance of this message is caused by the digital signal being recorded. This will not affect the recording. While recording from a digital component connected through the DIGITAL IN connector, the digital connecting cable was unplugged or the digital component turned off. Connect the cable or turn the digital component back on. E0001/ MEMORY NG There is an error in the internal data that the deck needs in order to operate. Consult your nearest Sony dealer. E0101/ LASER NG There is a problem with the optical pickup. The optical pickup may have failed. Consult your nearest Sony dealer. Three- or five- digit code/ Message Cause/Remedy5 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Details of History Displays the total recording time. When the total recording time is one minute or longer, displays the time and minute. When the total recording time is less than one minute, displays “Under 1 min”. The displayed time is about 1/4 of the actual recording time when the laser is set to the high power state. Displays the total playback time. When the total playback time is one minute or longer, displays the time and minute. When the total playback time is less than one minute, displays “Under 1 min”. Displays the total time when the spindle motor rotates. When the total rotation time is one minute or longer, displays the time and minute. When the total rotation time is less than one minute, displays “Under 1 min”. Displays the total number of retries during recording and number of retry errors during playback. Displayed as “r xx p yy”. “xx” indicates the number of retries during recording, “yy” indicates the number of ret