Sony-RCDW222ES-rcd-sm 维修电路原理图.pdf

RCD-W222ESUS ModelCOMPACT DISC RECORDERSERVICE MANUALSPECIFICATIONSModel Name Using Similar Machanism NEWCD Mechanism TypeCDM65-RBD1Base Unit NameRBD1Optical Pick-up NameKRS-220CModel Name Using Similar Mechanism NEWCD Mechanism TypeCDM53L-30B61BBase Unit NameBU-30BBD61BOptical Pick-up NameA-MAX.3 CD-Rsection CDPsection9-874-116-012002I0200-1 2002.09Sony CorporationHome Audio CompanyPublished by Sony Engineering CorporationVer 1.0 2002.09DECK A (the CD player section)SystemCompact disc digital audio systemLaserSemiconductor laser ( =780 nm)Emission duration: continuousFrequency response20 Hz 20,000 Hz (0.5 dB)Wow and flatterBelow measurable limitDECK B (the CD-R and CD-RW recording section)SystemCompact disc digital audio systemLaserSemiconductor laser ( =780 nm)Emission duration: continuousPlayable discsCD, CD-R, CD-RWRecordable discsCD-R, CD-RW (for music use)Frequency response20 Hz - 20,000 Hz (0.5 dB)Wow and flatterBelow measurable limitInputsANALOG IN(Phono jacks)Impedance: 47 kilohmsRated input: 500 mVrmsMinimum input: 250 mVrmsDIGITAL OPTICAL IN(Square optical connector jack)Optical wavelength: 660nmDIGITAL COAXIAL IN(Phono jack)Impedance: 75 ohmsRated input: 0.5 Vp-p, 20 %OutputsANALOG OUT(Phono jacks)Impedance: 47 kilohmsRated output: 2 VrmsLoad impedance: over 10 kilohmsDIGITAL OPTICAL OUT(Square optical connector jack)Optical wavelength: 660nmRated output: 18 dBmDIGITAL COAXIAL OUT(Phono jack)Rated output: 0.5 Vp-p, 20 %Load impedance: 75 ohmsPHONES(Stereo phono jack)Rated output: 28mWLoad impedance: 32 ohmsGeneralPower requirements120 V AC, 60 HzPower consumption29 WDimensions (approx.) (w/h/d) incl. projecting parts and control430 x 110 x 400 mm( 17 x 4 3/8 x 15 3/4 inch)Mass (approx.)7.5 kg (16 1/2 lbs)Supplied accsessories Audio connecting cordsPhono jack x 2 (red/white) y Phono jack x 2 (red/white) (2) Remote commander (remote) (1) Size AA (R6) batteries (2)Design and specifications are subject to changewithout notice.RadioFans.CN 收音机爱 好者资料库2RCD-W222ESSAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing 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 asdescribed below.LEAKAGEThe AC leakage from any exposed metal part to earth Ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microampers). Leak-age current can be measured by any one of three methods.1. A commercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2. A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3. Measuring the voltage drop across a resistor by means of a VOMor battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog meters must have an accurate low-voltage scale.The Simpson 250 and Sanwa SH-63Trd are examples of a pas-sive VOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig. A)SAFETY-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTSWHOSE PART NUMBERS APPEAR AS SHOWN IN THISMANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.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 270Cduring 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.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, ob-serve from more than 30 cm away from the objective lens.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.Fig. A. Using an AC voltmeter to check AC leakage.0.15FTo Exposed MetalParts on Set1.5kACvoltmeter(0.75V)Earth GroundCAUTIONThe use of optical instruments withthis product will increase eyehazard. As the laser beam used inthis Compact Disc Recorder isharmful to eyes, do not attempt to disassemble the cabinet.Refer servicing to qualified personnel only.The following caution label is located inside the apparatus. RadioFans.CN 收音机爱 好者资料库3RCD-W222ESTABLE OF CONTENTS1. SERVICING NOTE. 42. GENERAL. 73. DISASSEMBLY3-1. Case (Top) . 83-2. Front Panel Section . 93-3. Power SW board, HP board, RM board, LED board, CD SW board, Display Board. 93-4. Deck A (CDM53L-30B61B), Deck B (CDM65-RBD1) . 103-5. CD-R Board, Tray And Optical Pick-Up Block (KRM-220) (Deck B). 113-6. CD Base Unit (BU-30BBD61B) (Deck A). 123-7. Fitting Base (Guide) Assy, Bracket (Chassis) And Magnet Assy (Deck A) . 123-8. Tray (Sub) (Deck A) . 133-9. Chassis (Mold B) Section, Stocker Section And Slider (Selection). 134. ASSEMBLY. 145. TEST MODE. 176. ELECTRICAL ADJUSTMENT . 207. DIAGRAMS7-1. Circuit Boards Location. 517-2. Block diagrams BD Section . 52 Block diagrams CD-R Section . 53 Block diagrams MAIN Section . 547-3. Schematic Diagram CD-R (1/3) Section . 557-4. Schematic Diagram CD-R (2/3) Section . 567-5. Schematic Diagram CD-R (3/3) Section . 577-6. Printed Wiring Board CD-R Section (Side A) . 58 Printed Wiring Board CD-R Section (Side B) . 597-7. Printed Wiring Board BD Section . 607-8. Schematic Diagram BD Section . 617-9. Printed Wiring Board CDM Section . 627-10. Schematic Diagram CDM Section . 637-11. Printed Wiring Board MAIN Section (Side A) . 64 Printed Wiring Board MAIN Section (Side B) . 657-12. Schematic Diagram MAIN (1/2) Section . 667-13. Schematic Diagram MAIN (2/2) Section . 677-14. Printed Wiring Board LED, HP Section . 687-15. Schematic Diagram LED, HP Section . 697-16. Printed Wiring Board Display, Power Section . 707-17. Schematic Diagram Display, Power Section . 717-18. IC Pin Functions. 727-19. IC Block Diagrams. 838. EXPLODED VIEWS8-1. Case Section. 858-2. Front Panel Section . 868-3. Chassis Section . 878-4. CD Play Mechanism Section (Deck A)-1 (CDM53L-30B61B). 888-5. CD Play Mechanism Section (Deck A)-2 (CDM53L-30B61B). 898-6. CD Play Mechanism Section (Deck A)-3 (CDM53L-30B61B). 908-7. Stocker Overall, Optical Pick-Up Section (Deck A) . 918-8. Base Unit (Deck A). 928-9. CD-R Mechanism Deck Section (Deck B) . 939. ELECTRICAL PARTS LIST.94SELF-DIAGNOSIS FUNCTIONWhen the self-diagnosis function is activated to prevent the player frommalfunctioning, three character service numbers in a combination with amessage appears in the display. In this case, check the following table.MessageExplanationC12/You are trying to record a disc that cannot be playedCannot Copyback in DECK-A or with an external device, suchas CD-ROM or VIDEO CD. Remove the disc, and then insert a music CD for playback.C13/Recording has not been completed successfully be-Rec Errorcause 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 (suchas oilstained or finger marked) or scratched. Or thedisc is not normal. Replace the disc with another one and restart the recording again.C14/The unit did not read the TOC information.TOC Error Insert other discs.C41/The sound source you are trying to record is a copyCannot Copyof a commercial music software. Or you are tryingto record on a CD-R/CD-RW digitally. Because of the restriction of the Serial Copy Man-agement System, you cannot record a copy of a commercial music software. Neither can you record a CD-R/ CD-RW digitally. Use analog recording through the ANALOG INjack when you record from other units. Or use Syn-chro-Recording when you record from DECK A.(The recording mode is automatically changed toanalog recording.)C71/If this message is displayed momentarily, this is notDin Unlockan error. It is caused by the digital signal during re-cording.During recording of a digital sound source, the con-necting cable has been disconnected or the player ofthe sound source has turned off. Connect the cable or turn on the digital player.4RCD-W222ESSECTION 1SERVICING NOTENOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage1) The pick-up should always be left in its conductive bag until immediately prior to use.2) The pick-up should never be subjected to external pressure or impact.2. Repair notes1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials. 2) The pick-up should always be handled correctly and carefully , taking care to avoid external pressure and impact. If it is subjected to pressure or impact, the result may be an operational malfunction and/or damage to the printed-circuit board. 3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched. 4) Laser beams may damage the eyes! Absolutely never permit laser beams to enter the eyes! Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.5) Cleaning the lens surface If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort this. 6) Never attempt to disassemble the pick-up. Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up. Storage in conductive bagNEVER look directly at the laser beam, and dont let contact fingers or other exposed skin. MagnetHow to hold the pick-up Conductive Sheet Cotton swab PressurePressureDrop impact5RCD-W222ESNOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These compo-nents are sensitive to, and easily affected by, static electricity. If such static is high voltage, components can be damaged, and for that reason components should be handled with care. 2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnetism is present, or where there is excessive dust. 2. Notes for repair 1) Before replacing a component part, first disconnect the power supply lead wire from the unit 2) All equipment, measuring instruments and tools must be grounded. 3) The workbench should be covered with a conductive sheet and grounded. When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is because there is the possibility of damage by static electricity.) 4) To prevent AC leakage, the metal part of the soldering iron should be grounded. 5) Workers should be grounded by an armband (1M)6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband. 7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin. Resistor(1M) ConductiveSheetResistor(1M)Armband6RCD-W222ESElectrostatically Sensitive Devices (ESD) Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components com-monly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated cir-cuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive sur-face such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical charges sufficient to damage ESD devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD devices. 6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials). 7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed. CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER SAFETY PRECAUTIONS. 8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can gen - erate static electricity sufficient to damage an ESD device). 7RCD-W222ESSECTION 2GENERAL1 23456 7890qaqs qd qfqgqhqjql qkw;wawswdwfwh wgwjwkwle;eaesed1 POWER button2 g(remote sensor)3 DISC 1-5 A buttons4 CD SYNCHRO NORMAL/HIGH buttons5 MENU/NO button6 Disc tray-Deck B7 YES button8 TIME-Deck B button9 OPEN/CLOSE button -Deck B0 PLAY MODE button -Deck Bqa INPUT buttonqs FINALIZE buttonqd ERASE buttonqf SBM button and indicatorqg REC LEVEL knobqh REC button -Deck Bqj (stop) button