Sony-RCDW1-cd-sm 电路图 维修手册.pdf

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1、RCD-W1 US Model Canadian Model E Model COMPACT DISC RECORDER SERVICE MANUAL SPECIFICATIONS 9-929-582-15 2003F02-1 2003.06 Sony Corporation Home Audio Company Published by Sony Engineering Corporation Ver 1.4 2003.06 DECK A (the CD player section) SystemCompact disc and digital audio system LaserSemi

2、conductor laser ( = 780 nm) Emission duration: continuous Frequency response20Hz20,000kHz (0.5 dB) Signal-to-noise ratioMore than 100 dB Dynamic rangeMore than 93 dB DECK B (the CD-R and CD-RW recording section) SystemCompact disc digital audio system LaserSemiconductor laser ( = 780 nm) Emission du

3、ration: continuous Playable discsCD, CD-R, CD-RW Recordable discsCD-R, CD-RW (for music use) Frequency response20 to 20,000 Hz 0.5 dB Signal-to-noise ratioOver 96 dB during playback Dynamic rangeMore than 93 dB during playback Outputs ANALOG OUT (Phono jacks)impedance 47 kilohms Rated output 2 Vrms

4、Load impedance over 10 kilohms OPTICAL DIGITAL OUT (Square optical connector jack) Wavelength 660 nm Output level -18 dBm General Power requirements U.S.A. and Canada120 V AC, 60 Hz Power consumption28 W Dimensions (approx.) (w/h/d) incl. projecting parts and control 430 x 108 x 368 mm Mass (approx.

5、)4.6 kg Supplied accessories Audio connecting cord (2) Remote commander (remote) (1) Size AA (R6) batteries (2). Design and specifications are subject to change without notice. Model Name Using Similar Machanism NEW CD Mechanism TypeCDM-700(CD-RW) Optical Pick-up TypeKRS-220C Model Name Using Simila

6、r Mechanism NEW CD Mechanism TypeCDM-700(CDP) CD-R Inputs ANALOG IN (Phono jacks)impedance 47 kilohms Rated input 330 mVrms Minimum input 125 mVrms DIGITAL OPTICAL IN (Square optical connector jack) Optical wavelength 660 nm CDP RadioFans.CN 收音机爱 好者资料库 2 RCD-W1 SAFETY CHECK-OUT (US model only) After

7、 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 fr

8、om 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-

9、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

10、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 I

11、DENTIFIED 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 reu

12、se 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 time

13、s). Be careful not to apply force on the conductor when soldering or unsoldering. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PROD- UCT MARKING is located on the rear exterior. This caution label is located inside the unit. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURI

14、T! 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 COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. NOTES ON HANDLING TH

15、E 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 als

16、o 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

17、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. The

18、Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. 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 RadioFans.CN 收音机爱 好者资料库 3 RCD-W1 TABLE OF CONTENTS 1. SERVICING NOTE. 4 2. G

19、ENERAL. 8 3. DISASSEMBLY 3-1. Top Case. 9 3-2. Tray Door, Front Panel Assy.10 3-3. HP board, FL board, VOL board. 10 3-4. Back Panel . 11 3-5. Audio Board . 11 3-6. Power Board .12 3-7. CDP Deck assy (Deck A), CD-R Deck Assy (Deck B) . 12 3-8. BD Board (Deck A) .13 3-9. CDP Mechanism Assy (Deck A).

20、13 3-10.Spindle Motor Assy, Pick-Up Block (Deck A) .14 3-11.BD-R Board. 14 3-12.CD-R Mechanism Assy (Deck B) .15 3-13.Sled Mechanism Assy . 15 4. ELECTRICAL ADJUSTMENT . 16 5. DIAGRAMS 5-1. Circuit Boards Location. 23 5-2. Block diagrams CD-R Section (1/2) .25 Block diagrams CD-R Section (2/2) .26 B

21、lock diagrams CDP Section .27 Block diagrams Audio Section .28 Block diagrams Power Section .29 5-3. Printed Wiring Board CD-R Section (Side A) . 30 Printed Wiring Board CD-R Section (Side B) . 31 5-4. Schematic Diagram CD-R Section (1/6) . 32 5-5. Schematic Diagram CD-R Section (2/6) . 33 5-6. Sche

22、matic Diagram CD-R Section (3/6) . 34 5-7. Schematic Diagram CD-R Section (4/6) . 35 5-8. Schematic Diagram CD-R Section (5/6) . 36 5-9. Schematic Diagram CD-R Section (6/6) . 37 5-10. Printed Wiring Board CDP Section (Side A) .38 Printed Wiring Board CDP Section (Side B) .39 5-11. Schematic Diagram

23、 CDP Section (1/3).40 5-12. Schematic Diagram CDP Section (2/3).41 5-13. Schematic Diagram CDP Section (3/3).42 5-14. Schematic Diagram Audio Section (1/2). 43 5-15. Schematic Diagram Audio Section (2/2). 44 5-16. Printed Wiring Board Audio Section .45 5-17. Printed Wiring Board Panel Section .46 5-

24、18. Schematic Diagram Panel Section . 47 5-19. Printed Wiring Board Power Section . 48 5-20. Schematic Diagram Power Section . 49 5-21. IC Pin Functions.50 5-22. IC Block Diagrams.55 6. EXPLODED VIEWS 6-1. Front Panel Section . 61 6-2. Chassis Section .62 6-3. CD Play Section (Deck A) .63 6-4. CD Re

25、cord Section . 64 7. ELECTRICAL PARTS LIST.65 Explanation A record-related button has been pressed when a finalized disc is in the DECK B. A record-related button has been pressed when a standard CD is in the DECK B. A non-audio CD-ROM or a CD- Video disc has been placed in the machine. An unfinaliz

26、ed disc has been placed in the DECK A. A DVD disc has been placed in the unit. There is not enough time left on the disc to complete a planned recording. The disc is not seated properly. There is a problem with the disc. A dubbing has not been completed properly. More than 20 tracks have been progra

27、mmed. A record-related button has been pressed when a non-audio disc is in the DECK B. Message CHECK DISC DATA DISC DISC ERROR DISC FULL ERROR FAILED FULL NO AUDIO Error Messages The following table explains the error messages that appear in the display. RadioFans.CN 收音机爱 好者资料库 4 RCD-W1 SECTION 1 SE

28、RVICING 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 st

29、rong 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 pr

30、inted-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 eye

31、s! 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

32、 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 the

33、y 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 S

34、heet Cotton swab Pressure Pressure Drop impact 5 RCD-W1 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 stat

35、ic 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, w

36、here 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 conduc

37、tive 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 g

38、rounded by an armband (1MW ) 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.

39、Resistor (1MW? ) Conductive Sheet Resistor (1MW ?) Armband 6 RCD-W1 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

40、 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-e

41、quipped 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 rem

42、oving 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 sol

43、der 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 wi

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