Yamaha-CDCE-500-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL MINI COMPONENT SYSTEM CRX-E500 100810 IMPORTANT NOTICE This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already k

2、nown and understood by the users, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified. For these re

3、asons, we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recogniti

4、on of any applicable technical capabilities, or establish a principle-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are continually striving to improve YA

5、MAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge a

6、ny static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit. P.O.Box 1, Hamamatsu, Ja

7、pan I CONTENTS TO SERVICE PERSONNEL . 23 PREVENTION OF ELECTRO STATIC DISCHARGE . 3 FRONT PANEL . 4 REMOTE CONTROL PANEL . 4 REAR PANELS . 5 SPECIFICATIONS. 6 INTERNAL VIEW . 6 DISASSEMBLY PROCEDURES . 7 MAIN P.C.B. OPERATION CHECK . 8 CDC-MECHANISM REPAIRING PROCEDURES. 919 STANDARD OPERATION CHART

8、 . 2023 TEST MODE . 2425 TROUBLESHOOTING . 26 IC DATA . 2732 DISPLAY DATA . 33 REMOTE CONTROL. 33 BLOCK DIAGRAM. 34 PRINTED CIRCUIT BOARD . 3537 IC BLOCK. 38 PIN CONNECTION DIAGRAM . 38 SCHEMATIC DIAGRAM . 39 PARTS LIST. 4148 CDC-E500 The CRX-E500 is composed of the RX-E400 and the CDC-E500. This se

9、rvice manual is for the CDC-E500. For the RX-E400 service manual, please refer to the following publication number: RX-E400 100809 For the system operation, please refer to the service manual for the RX-E400. CDC-E500 RadioFans.CN 收音机爱 好者资料库 Copyright 2002 YAMAHA CORPORATION This manual is copyright

10、ed by YAMAHA and may not be copied or redistributed either in print or electronically without permission. CDC-E500 CDC-E500 2 WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER OR EQUIVALENT INSULATING TABLE I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characte

11、ristics are marked s and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been completed, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply ci

12、rcuits. Meter impedance should be equivalent to 1500 ohm shunted by 0.15F. Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities. THE COMPACT DISC PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PERSONNEL. WARNING

13、: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to ca

14、use cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder

15、/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. WARNING: Laser Safety This product contains a laser beam component. This component may emit invisible, as well as visible radiation, which may cause eye d

16、amage. To protect your eyes and skin from laser radiation, the following precautions must be used during servicing of the unit. 1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the laser pick-up unit at all times. Do not stare at th

17、e laser beam at any time. 2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual. 3) CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Laser Emitting

18、conditions: 1) When the Top Cover is removed, and the STANDBY/ON key is turned to the ON position, the laser component will emit a beam for several seconds to detect if a disc is present. During this time (5 - 10 sec.) the laser may radiate through the lens of the laser pick-up unit. Do not attempt

19、any servicing during this period! If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions. 2) The laser power level can be adjusted with the VR on pick-up PWB. However, this level has been set by the factory prior to shippi

20、ng from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device. RadioFans.CN 收音机爱 好者资料库 CDC-E500 CDC-E500 3 VARO!:AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTII

21、NA NKYMTTMLLE LASER- STEILYLLE. L KATSO STEESEEN. VARNING!: OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. I PREVENTION OF ELECTRO STATIC DISCHARGE Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly a

22、re called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits 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 electro static discharg

23、e (ESD). 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock re

24、asons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to

25、 solder or unsolder ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can generate electrical charge sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges

26、 sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive m

27、aterial). 7. Immediately before removing the protective material from the leads of a replacement ES divice, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other

28、safety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).

29、Grounding for electrostatic breakdown prevention 1. Human body grounding. Use the anti static wrist strap to discharge the static electricity from your body. 2. Work table grounding. Put a conductive material (sheet) or steel sheet on the area where the optical pickup is placed and ground the sheet.

30、 Caution: The static electricity of your clothes will not be grounded through the wrist strap. So take care not to let your clothes touch the optical pickup. 1M Conductive material (sheet) or steel sheet Anti-static wrist strip PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a l

31、aser. Therefore, be sure to carefully follow the instructions below when servicing. 1. Laser Diode Properties Material: GaAlAs Wavelength: 780 nm Emission Duration: Continuous Laser Output: max. 44.6 W* * This output is the value measured at a distance of about 200 mm from the objective lens surface

32、 on the Optical Pick-up Block. 2. When checking the laser diode emission, keep your eyes more than 30 cm away from the objective lens. CDC-E500 CDC-E500 4 2 3 I FRONT PANEL POWER 123 123 456 456 789 78 0+10+100 REP MODE RANDOMPROG ABC TEXT/TIMEDISC SKIP DE TAPE DIRECTION PRESETTUNERPRESET MDCDTAPE A

33、UX MD REC/PAUSE TAPE REC/PAUSE MODE SLEEPDISPLAY DUBBING CRX-E500 V891360 VOLUME START I REMOTE CONTROL PANEL Note: When confirming remote control operation, connect the unit to the RX-E400 by using the system cable. CDC-E500 CDC-E500 5 I REAR PANELS U, C models A model CDC-E500 CDC-E500 6 312 45 21

34、7 (8-9/16) 100 (3-15/16) 8 (5/16) 108 (4-1/4) 346.5 (13-5/8) Unit : mm (inch) I SPECIFICATIONS Output Level 1 kHz, 0dB. 2 0.5 Vrms Signal to Noise Ratio (EIAJ) .102 dB or more Dynamic Range .95 dB or more Harmonic Distortion + Noise 1 kHz .0.004 % or less Frequency Response 2 Hz to 20 kHz . 0 0.5 dB

35、 Power Supply U, C models .AC 120 V, 60 Hz A model .AC 240 V, 50 Hz Power Consumption All models. 13 W Dimensions (W x H x D) . 217 x 108 x 346.5 mm (8-9/16 x 4-1/4 x 13-5/8) Weight .3.5 kg (7lbs. 11oz.) Finish Gold Color . U, C, A models Silver Color. U model Accessories of CRX-E500 Remote Control

36、x 1, Indoor FM antenna x 1, AM loop antenna x 1, Audio Pin Cable (2P, 1.0m) x 1, System Control Cable (1P, 1.0m) x 1, Battery (size UM-3, R6) x 2 * Specifications are subject to change without notice due to product improvements. U . U.S.A. modelC . Canadian model A . Australian model DIMENSIONS I IN

37、TERNAL VIEW 1 MAIN (3) P.C.B. 2 MAIN (2) P.C.B. 3 MAIN (1) P.C.B. 4 CDC-MECHANISM UNIT 5 MAIN (5) P.C.B. CDC-E500 CDC-E500 7 CB1 CB6 CB3 CB2 CB4 CB200 1 1 2 2 3 3 4 Top Cover Front Panel 5 6 6 6 CDC Mechanism Unit I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) Disconnect the power

38、 plug from the AC outlet. 1. Removal of Top Cover a. Remove 4 screws (1) and 4 screws (2) in Fig. 1. b. Lift the Top Cover at the rear and move it rear-ward slantingly. 2. Removal of Front Panel Unit a. Disconnect cable from Connector (CB200) in Fig. 2. b. Remove 2 screws (3) and 2 screws (4) in Fig

39、. 1. c. Remove the Front Panel Unit forward in Fig. 1. 3. Removal of CDC Mechanism Unit a. Remove 1 screw (5) and 5 screws (6) in Fig. 3 and then remove the CDC Mechanism Unit in Fig. 3. b. Disconnect cables from Connectors (CB1, CB2, CB3 and CB4) in Fig. 2. *When installing the CDC Mechanism Unit,

40、make sure that its tip end has fitted into the cut in the main chassis securely (confirmed by a clicking sound) before tightening the screw. This is to prevent it from getting loose. Fig. 1 Fig. 2 Fig. 3 The way to open the drawer a. Move the lever under the left side face of the mechanism toward th

41、e front side first and then toward the rear side. The drawer is unlocked and opens by about 5 to 10cm. (Fig. 4) Fig. 4 lever RearFront1 2 CDC-E500 CDC-E500 8 I MAIN P.C.B. OPERATION CHECK 1. Remove the CDC Mechanism Unit. 2. Disconnect cable from Connector (CB6) in Fig. 2. At this time, unwind this

42、cable wound around the ferrite core. 3. Remove 4 screws fixing the MAIN (2) P.C.B. to the chassis. Remove 4 screws fixing the MAIN (1) P.C.B. to the rear panel. 4. Remove the MAIN (1) P.C.B. and the MAIN (2) P.C.B. together. 5. Place the MAIN (1) P.C.B. and the MAIN (2) P.C.B. on the blocks. 6. Rein

43、stall the CDC Mechanism Unit. 7. Using extension cables, make connections. 1 Bancard: 16P 420mm (V6565800) 2 C & C assembly set : 4P 450mm and 8P 450mm (AAX28730) 8. Using a lead wire, connect the grounding of the pin jack (PJ1) and the system connector (JK1) to the rear panel. (If it is left unconn

44、ected, the grounding floats and the unit may fail to function properly.) CB1 MAIN (1) P.C.B. MAIN (2) P.C.B. CB6 CB200 CB2 CB4 8P 16P 4P CB3 1 2 Block Block b. Pull out the drawer to open it fully. (Fig. 5) Fig. 5 (Drawer opened fully) CDC-E500 CDC-E500 9 Rear: drawer closing direction I CDC-MECHANISM REPAIRING P