Sony-RCD-W50-C-Service-Manual电路原理图.pdf

RCD-W50C US Model Canadian Model E Model SERVICE MANUAL COMPACT DISC RECORDER Sony Corporation Home Audio Company Published by Sony Engineering Corporation 9-874-151-02 2003L16-1 2003.12 SPECIFICATIONS Ver 1.1 2003. 12 Model Name Using Similar MechanismNEW CD Section CD Mechanism TypeCDM53L-30B61B Base Unit TypeBU-30BBD61B Optical Pick-up TypeA-MAX.3 Model Name Using Similar MechanismNEW CD-R/CD-RW CD Mechanism TypeCDM65-RBD1 Section Base Unit TypeRBD1 Optical Pick-up TypeKRM-220CAA DECK A (the CD player section) SystemCompact disc digital audio system LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Frequency response20 Hz 20,000 Hz (0 5 dB) DECK B (the CD-R and CD-RW recording section) SystemCompact disc digital audio system LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Playable discsCD, CD-R, CD-RW Recordable discsCD-R, CD-RW (for music use) Frequency response20 Hz - 20,000 Hz (0 5 dB) General Power requirements North American model:120 V AC, 60 Hz Other models:110-120/220-240V AC, 50/60 Hz Power consumption25 W Dimensions (approx ) (w/h/d) incl projecting parts and control430 108 399 mm ( 17 4 3/8 15 3/4 inch) Mass (approx )6 8 kg (15 lbs) Supplied accessories Design and specifications are subject to change without notice Audio connecting cords Phono jack 2 (red/white) Phono jack 2 (red/white) (2) Remote commander (remote) (1) Size AA (R6) batteries (2) Inputs ANALOG IN (Phono jacks)Impedance: 47 kilohms Rated input: 500 mVrms Minimum input 250 mVrms DIGITAL OPTICAL IN (Square optical connector jack) Optical wavelength: 660 nm Outputs ANALOG OUT (Phono jacks)Impedance: 47 kilohms Rated output: 2 Vrms Load impedance: over 10 kilohms DIGITAL OPTICAL OUT (Square optical connector jack) Wavelength: 660 nm Output level: 18 dBm PHONES (Phono jack)Load impedance: 32 ohms Output level: 12mW RadioFans.CN 收音机爱 好者资料库 2 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 apparatus. 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. RCD-W50C 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 LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PISES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS 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. LEAKAGE The 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 To 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. MODEL IDENTIFICATION BACK PANEL Parts No. PARTS No.MODEL 4-238-401-0 4-238-401-1 4-238-401-3 US Canadian E RadioFans.CN 收音机爱 好者资料库 3 RCD-W50C TABLE OF CONTENTS 1. SERVICING NOTE4 2. GENERAL5 3. DISASSEMBLY 6 3-1. Case (409538) 7 3-2. Loading Panel (CDR) 7 3-3. Front Panel Section 8 3-4. CD-SW Board, LED Board, DISPLAY Board 8 3-5. CD Mechanism Deck (CDM65-RBD1) 9 3-6. Tray 9 3-7. CDR Board 10 3-8. Holder (MG) Sub Assembly, Dust Cover 10 3-9. Optical Pick-Up (KRM-220CAA)11 3-10. Motor Assembly (Loading) (M201) 11 3-11. Cam (CH) 12 3-12. MAIN Board12 3-13. CD Mechanism Deck (CDM53L-30B61B)13 3-14. Fitting Base (Magnet) Assembly 13 3-15. CLAMP MOTOR Board, Motor (Clamp) Assembly (M701) 14 3-16. Fitting Base (Guide) Assembly, Bracket (Chassis) 14 3-17. Tray (Sub) 15 3-18. Chassis (Mold B) 15 3-19. LOAD MOTOR Board, Motor (Loading) Assembly (M702) 16 3-20. Stocker Section 16 3-21. Slider (Selection), Tension Spring (Shutter), Slider (Shutter) 17 3-22. Gear (Gear A), Gear (Gear B), Gear (U/D Slider)17 Precaution During Gear (Gear U/D Slider), Gear (Gear B), Gear (Gear A) Installation18 3-23. Gear (Chucking) 18 3-24. BD Board 19 3-25. Optical Block Section 19 4. TEST MODE 21 5. ELECTRICAL ADJUSTMENTS24 CD SECTION 24 CD-R/RW SECTION25 6. DIAGRAMS55 6-1. Block Diagrams CD-R Section 56 CD Section 57 POWER/DISPLAY Section 58 6-2. Printed Wiring Board BD Section 59 6-3. Schematic Diagram BD Section 60 6-4. Printed Wiring Board SENSER/MOTOR/SW Section 61 6-5. Schematic Diagram SENSER/MOTOR/SW Section 62 6-6. Printed Wiring Board CD-R Section (Side A) 63 6-7. Printed Wiring Board CD-R Section (Side B) 64 6-8. Schematic Diagram CD-R Section (1/4) 65 6-9. Schematic Diagram CD-R Section (2/4) 66 6-10. Schematic Diagram CD-R Section (3/4) 67 6-11. Schematic Diagram CD-R Section (4/4) 68 6-12. Printed Wiring Board MAIN Section (Side A) 69 6-13. Printed Wiring Board MAIN Section (Side B) 70 6-14. Schematic Diagram MAIN Section (1/2) 71 6-15. Schematic Diagram MAIN Section (2/2) 72 6-16. Printed Wiring Board LED Section 73 6-17. Schematic Diagram LED Section 74 6-18. Printed Wiring Board DISPLAY Section 75 6-19. Schematic Diagram DISPLAY Section 76 6-20. IC Block Diagrams 77 6-21. IC Pin Functions Description80 7. EXPLODED VIEWS54 7-1. Case Section90 7-2. Front Panel Section 91 7-3. Chassis Section 92 7-4. Overall Section (CDM53L-30B61B)93 7-5. Chassis (Mold) Assembly Section (CDM53L-30B61B) 94 7-6. Chassis Section (CDM53L-30B61B) 95 7-7. Optical Block Section 96 7-8. CDM65-RBD197 8. ELECTRICAL PARTS LIST98 Unleaded solder Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. 4 RCD-W50C SECTION 1 SERVICING NOTE NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repain parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. The emission check enables continuous checking of the S curve. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output three times. Message C12/ Cannot Copy C13/ Rec Error C14/ TOC Error C41/ Cannot Copy C71/ Din Unlock Explanation You are trying to record a disc that cannot be played back in DECK-A or with an external device, such as CD-ROM or VIDEO CD. Remove the disc, and then insert a music CD for playback. Recording has not been completed successfully because of vibration. Relocate the unit in a place free of vibration and restart the recording again. The disc you try to record is excessively dirty (such as oil- stained or finger marked) or scratched. Or the disc is not normal. Replace the disc with another one and restart the recording again. The unit did not read the TOC information. Insert other discs. The sound source you are trying to record is a copy of a commercial music software. Or you are trying to record on a CD-R/CD-RW digitally. Because of the restriction of the Serial Copy Management System, you cannot record a copy of a commercial music software. Neither can you record a CD-R/ CD-RW digitally. If this message is displayed momentarily, this is not an error. It is caused by the digital signal during recording. During recording of a digital sound source, the connecting cable has been disconnected or the player of the sound source has turned off. Connect the cable or turn on the digital player. Self-diagnosis Function When the self-diagnosis function is activated to prevent the player from malfunctioning, three character service numbers in a combination with a message appears in the display. In this case, check the following table. 5 RCD-W50C SECTION 2 GENERAL 3641 1 POWER button 2 H button 3 DISC 1 to DISC 5 A button and indicators 4 CD SYNCHRO NORMAL button 5 CD SYNCHRO HIGH button 6 OPEN/CLOSE A button 7 H button 8 INPUT button 9 FINALIZE button q; ERASE button qa SBM button and indicator qs REC z button qd X button qf REC LEVEL knob qg x button qh PLAY MODE button qj TIME button qk DISPLAY button ql YES button w; l AMS L knob wa CLEAR button ws MENU/NO button wd l AMS L knob wf CLEAR button wg PLAY MODE button wh TIME button wj x button wk PHONES jack wl X button e; PHONE LEVEL knob 25978q; qa qs qd qfqgqhqjqkqlw;wdwawfwjwk e; wl wgwhws 6 RCD-W50C SECTION 3 DISASSEMBLY Note : Disassemble the unit in the order as shown below. MOTOR ASSEMBLY (LOADING) (M201) OPTICAL PICK-UP (KRM-220CAA) CAM (CH) LOADING PANEL (CDR) CD MECHANISM DECK (CDM53L-30B61B) CD MECHANISM DECK (CDM65-RBD1) FITTING BASE (MAGNET) ASSEMBLY FITTING BASE (GUIDE) ASSEMBLY, BRACKET (CHASSIS) BD BOARD LOAD MOTOR BOARD, MOTOR (LOADING) ASSEMBLY STOCKER SECTION GEAR (GEAR A), GEAR (GEAR B), GEAR(U/D SLIDER) GEAR (CHUCKING) SLIDER (SELECTION), TENSION SPRING (SHUTTER), SLIDER (SHUTTER) TRAY (SUB) CHASSIS (MOLD B) OPTICAL BLOCK SECTION CLAMP MOTOR BOARD, MOTOR (CLAMP) ASSEMBLY CD-SW board, LED board, DISPLAY board CDR BOARD HOLDER (MG) SUB ASSEMBLY, DUST COVER TRAY MAIN BOARD CASE (409538) FRONT PANEL SECTION SET 7 RCD-W50C Note : Follow the disassembly procedure in the numerical order given. 3-1. Case (409538) 3-2. Loading Panel (CDR) 4case (409538) 2two screws (case 3 TP2 3 8) 3two screws (case 3 TP2 3 8) 1two screws (case 3 TP2 3 8) 1 Slide the lever (cam (CH) to the direction of arrow. Front panel side CD mechanism deck (CDM65-RBD1) 3 2 lever (cam (CH) two hooks 4 loading panel (CDR) 8 RCD-W50C 3-3. Front Panel Section 3-4. CD-SW Board, LED Board, DISPLAY Board 7two claws 8front panel section 1connector (2core)(CN900) 2connector (3core)(CN690) 4connector (2core)(CN920) 5three screws (+BVTP 3 8) 6 four screws (+BVTP 3 8) 3 flexible flat cable (21core) (CN671) 5three screws (+BVTP 2.6 8) 7four claws 2two knobs (AMS) 1knob (AMS) 6twelve screws (+BVTP 2.6 8) 3four screws (+BVTP 2.6 8) 8Remove the soldering. HARNESS PROCESSING CD-SW board 4CD-SW board 9 LED board qaDISPLAY board q;flexible flat cable (21core) (CN700) 9 RCD-W50C 3-5. CD Mechanism Deck (CDM65-RBD1) 3-6. Tray 3four screws (+BVTP 3 8) 2 flexible flat cable (11core) (CN630) 1 connector (CN631) 4 CD mechanism deck (CDM65-RBD1) 1 Slide the lever (cam (CH) to the direction of arrow. 4 tray 2 Pull the tray while pressing the claw of the chassis in the direction of the arrow. 3 Pull the tray while pressing the claw of the chassis and the claw of the tray in the direction of the arrow. front panel side lever (cam (CH) claw claw chassis chassis 10 RCD-W50C 3-8. Holder (MG) Sub Assembly, Dust Cover 3-7. CDR Board 7 claw 6 claw 8connector (2 core) (CN104) 3 flexible flat cable (32core) (CN101) 4 flexible flat cable (11core) (CN102) 5 flexible flat cable (11core) (CN103) 9 CDR board 2 bottom plate 1four screws (+BVTP 2.6 8) 4three screws (+BVTP 2.6 8) 3holder (MG) sub assembly 1two claws 2two claws 5dust cover 11 RCD-W50C 3-9. Optical Pick-Up (KRM-220CAA) 3-10. Motor Assembly (Loading) (M201) 5 flexible flat cable (32core) (from optical device) 1two step screws 2two screws (2X9) (G with), +p tappin) 6optical pick-up (KRM-220CAA) 3two insulators (main) 4two insulators (main) 1 Slide the cam (CH) to the direction of arrow. 2 Remove the belt (loading) from the pulley of the motor assembly. 3 two claws 4 motor assembly (loading) (M201) 12 RCD-W50C 3-11. Cam (CH) 3-12. MAIN Board 11 6screw (+PTPWH 2.6 8) 5holder (BU) sub assembly cam (CH) claw 1 2 4 3 A qa q; Slide the cam (CH) to the direction of arrow A while pressing the claw. qs cam (CH) 7 gear (C) 9 gear (B) 8 claw 9screw (+BVTP 3 8) 7 flexible flat cable (23core) (CN660) 5 flexible flat cable (17core) (CN640) 1 flexible flat cable (21core) (CN671) 8 connector (4core) (CN631) 6 connector (2core) (CN