Sony-RCD-W222-ES-Service-Manual电路原理图.pdf

RCD-W222ES US Model COMPACT DISC RECORDER SERVICE MANUAL SPECIFICATIONS Model Name Using Similar Machanism NEW CD Mechanism TypeCDM65-RBD1 Base Unit NameRBD1 Optical Pick-up NameKRS-220C Model Name Using Similar Mechanism NEW CD Mechanism TypeCDM53L-30B61B Base Unit NameBU-30BBD61B Optical Pick-up NameA-MAX.3 CD-R section CDP section 9-874-116-01 2002I0200-1 2002.09 Sony Corporation Home Audio Company Published by Sony Engineering Corporation Ver 1.0 2002.09 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) Wow and flatterBelow measurable limit 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) Wow and flatterBelow measurable limit 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: 660nm DIGITAL COAXIAL IN (Phono jack)Impedance: 75 ohms Rated input: 0.5 Vp-p, 20 % Outputs ANALOG OUT (Phono jacks)Impedance: 47 kilohms Rated output: 2 Vrms Load impedance: over 10 kilohms DIGITAL OPTICAL OUT (Square optical connector jack)Optical wavelength: 660nm Rated output: 18 dBm DIGITAL COAXIAL OUT (Phono jack)Rated output: 0.5 Vp-p, 20 % Load impedance: 75 ohms PHONES (Stereo phono jack)Rated output: 28mW Load impedance: 32 ohms General Power requirements120 V AC, 60 Hz Power consumption29 W Dimensions (approx.) (w/h/d) incl. projecting parts and control 430 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 cords Phono 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 change without notice. RadioFans.CN 收音机爱 好者资料库 2 RCD-W222ES SAFETY CHECK-OUT After 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 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 microampers). Leak- age 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 pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) 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 THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL 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 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. 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 repair 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, ob- serve from more than 30 cm away from the objective lens. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Fig. A. Using an AC voltmeter to check AC leakage. 0.15F To Exposed Metal Parts on Set 1.5k AC voltmeter (0.75V) Earth Ground CAUTION The use of optical instruments withthis product will increase eye hazard. As the laser beam used inthis Compact Disc Recorder is harmful 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 3 RCD-W222ES TABLE OF CONTENTS 1. SERVICING NOTE. 4 2. GENERAL. 7 3. DISASSEMBLY 3-1. Case (Top) . 8 3-2. Front Panel Section . 9 3-3. Power SW board, HP board, RM board, LED board, CD SW board, Display Board. 9 3-4. Deck A (CDM53L-30B61B), Deck B (CDM65-RBD1) . 10 3-5. CD-R Board, Tray And Optical Pick-Up Block (KRM-220) (Deck B). 11 3-6. CD Base Unit (BU-30BBD61B) (Deck A). 12 3-7. Fitting Base (Guide) Assy, Bracket (Chassis) And Magnet Assy (Deck A) . 12 3-8. Tray (Sub) (Deck A) . 13 3-9. Chassis (Mold B) Section, Stocker Section And Slider (Selection). 13 4. ASSEMBLY. 14 5. TEST MODE. 17 6. ELECTRICAL ADJUSTMENT . 20 7. DIAGRAMS 7-1. Circuit Boards Location. 51 7-2. Block diagrams BD Section . 52 Block diagrams CD-R Section . 53 Block diagrams MAIN Section . 54 7-3. Schematic Diagram CD-R (1/3) Section . 55 7-4. Schematic Diagram CD-R (2/3) Section . 56 7-5. Schematic Diagram CD-R (3/3) Section . 57 7-6. Printed Wiring Board CD-R Section (Side A) . 58 Printed Wiring Board CD-R Section (Side B) . 59 7-7. Printed Wiring Board BD Section . 60 7-8. Schematic Diagram BD Section . 61 7-9. Printed Wiring Board CDM Section . 62 7-10. Schematic Diagram CDM Section . 63 7-11. Printed Wiring Board MAIN Section (Side A) . 64 Printed Wiring Board MAIN Section (Side B) . 65 7-12. Schematic Diagram MAIN (1/2) Section . 66 7-13. Schematic Diagram MAIN (2/2) Section . 67 7-14. Printed Wiring Board LED, HP Section . 68 7-15. Schematic Diagram LED, HP Section . 69 7-16. Printed Wiring Board Display, Power Section . 70 7-17. Schematic Diagram Display, Power Section . 71 7-18. IC Pin Functions. 72 7-19. IC Block Diagrams. 83 8. EXPLODED VIEWS 8-1. Case Section. 85 8-2. Front Panel Section . 86 8-3. Chassis Section . 87 8-4. CD Play Mechanism Section (Deck A)-1 (CDM53L-30B61B). 88 8-5. CD Play Mechanism Section (Deck A)-2 (CDM53L-30B61B). 89 8-6. CD Play Mechanism Section (Deck A)-3 (CDM53L-30B61B). 90 8-7. Stocker Overall, Optical Pick-Up Section (Deck A) . 91 8-8. Base Unit (Deck A). 92 8-9. CD-R Mechanism Deck Section (Deck B) . 93 9. ELECTRICAL PARTS LIST.94 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. MessageExplanation C12/You are trying to record a disc that cannot be played Cannot Copyback 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. C13/Recording has not been completed successfully be- Rec Error cause 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 oilstained or finger marked) or scratched. Or the disc 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 copy Cannot Copyof 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 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 IN jack when you record from other units. Or use Syn- chro-Recording when you record from DECK A. (The recording mode is automatically changed to analog recording.) C71/If this message is displayed momentarily, this is not Din 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 of the sound source has turned off. Connect the cable or turn on the digital player. 4 RCD-W222ES SECTION 1 SERVICING NOTE NOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage 1) 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 notes 1) 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 bag NEVER look directly at the laser beam, and dont let contact fingers or other exposed skin. Magnet How to hold the pick-up Conductive Sheet Cotton swab Pressure Pressure Drop impact 5 RCD-W222ES NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations 1) 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) Conductive Sheet Resistor (1M) Armband 6 RCD-W222ES Electrostatically 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