Sony-CDPCE545-cd-sm 维修电路原理图.pdf
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1、SERVICE MANUALCOMPACT DISC PLAYERUS ModelCanadian ModelAEP ModelE ModelAustralian ModelSPECIFICATIONSCDP-CE545Model Name Using Similar MechanismNEWCD Mechanism TypeCDM59-5BD32ABase Unit NameBU-5BD32AOptical Pick-Up NameKSS-213BA/F-NPRadioFans.CN 收音机爱 好者资料库2SAFETY CHECK-OUTAfter correcting the origin
2、al service problem, perform the follow-ing safety check 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 TESTThe AC leakage from any exposed metal par
3、t to earth ground andfrom all exposed metal parts to any exposed metal part having areturn 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 RCAWT-540A. Follow the manufacturers
4、 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 aVOM or battery-operated AC voltmeter. The “limit” indica-tion is 0.75 V, so analog meters must hav
5、e an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-amples of a passive VOM that is suitable. Nearly all batteryoperated digital multimeters that have a 2 V AC range are suit-able. (See Fig. A)Fig. A.Using an AC voltmeter to check AC leakage.1.5 k0.15 FACvoltmeter(0.75 V)To Ex
6、posed MetalParts on SetEarth GroundTABLE OF CONTENTS1.SERVICEING NOTES.32.GENERAL.63.DISASSEMBLY.74.TEST MODE. 125.ELECTRICAL CHECKING. 166.DIAGRAMS6-1.Note for Printed Wiring Boards andSchematic Diagrams . 196-2.Printed Wiring Board BD Board . 206-3.Schematic Diagram BD Board . 216-4.Printed Wiring
7、 Boards JUNCTION/SENSOR/LOADING MOTOR Boards . 226-5.Schematic Diagram JUNCTION/SENSOR/LOADING MOTOR Boards . 236-6.Printed Wiring Board MAIN Board . 246-7.Schematic Diagram MAIN Board . 256-8.Printed Wiring Boards PANEL Section . 266-9.Schematic Diagram PANEL Section . 276-10. IC Pin Function Descr
8、iption . 327.EXPLODED VIEWS. 368.ELECTRICAL PARTS LIST. 42ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM-POSANTS QUE PAR DES PICES SONY DO
9、NT LESNUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUM
10、BERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.RadioFans.CN 收音机爱 好者资料库3SECTION 1SERVICING NOTESThe laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing a
11、nd the humanbody.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 concen
12、trated so as to be focusedon the disc reflective surface by the objective lens in the opticalpick-up block. Therefore, when checking the laser diode emis-sion, observe from more than 30 cm away from the objective lens.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITMODEL IDENTIFICATION BACK P
13、ANEL ModelPart No.US model4-224-879-0sCanadian model4-224-879-1sAEP model4-224-879-2sAustralian model4-224-879-3sE model4-224-879-4sSingapore model4-224-879-5sSaudi Arabia model4-224-879-6sHOW TO OPEN THE DISC TABLE WHEN POWERSWITCH TURNS OFFInsert a tapering driver into the aperture of the unit bot
14、tom, andturn it in the direction of the arrow (to OUT direction).tabletapering driver*To close the disc table, turn the tapering driver in the reverse direction (to IN direction).Part No.Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a ta
15、ntalum capacitor may be dam-aged by heat.Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur-ing repairing. Do not touch the soldering iron on the same conductor of thecircuit board (within 3 times). Be careful not to apply force on the conductor when solderi
16、ngor unsoldering.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.Carry out the “S curve check” in “CD section adjustment” andcheck that the S curve waveforms is output three times.LASER DIODE AND FOCUS SE
17、ARCH OPERATIONCHECKThis appliance is classified as a CLASS 1 LASER product.The CLASS 1 LASER PRODUCT MARKING is located onthe rear exterior.4CD-TEXT TEST DISCThis unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube.The CD-TEXT TEST DISC (
18、TGCS-313:4-989-366-01) is used for checking the display.To check, perform the following procedure.Checking Method:1. Set the test disc on a free tray, and chuck the disc.2. Press the B button and play back the disc.3. The following will be displayed on the fluorescent indicator tube.Display : 1kHz/0
19、 dB/ L&R4. Rotate l AMS L knob to switch the track. The text data of each track will be displayed.For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CD-TEXT TEST DISC Recorded Contents and Display”.Restrictions in CD-TEXT Di
20、splayIn this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. Fordetails, refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters
21、)123456789101112131415161718192021TRACKNo.Displayed Contents2223242526272829303132333435363738394041TRACKNo.Displayed Contents1kHz/0dB/L&R20Hz/0dB/L&R40Hz/0dB/L&R100Hz/0dB/L&R200Hz/0dB/L&R500Hz/0dB/L&R1kHz/0dB/L&R5kHz/0dB/L&R7kHz/0dB/L&R10kHz/0dB/L&R16kHz/0dB/L&R18kHz/0dB/L&R20kHz/0dB/L&R1kHz/0dB/L&
22、R1kHz/-1dB/L&R1kHz/-3dB/L&R1kHz/-6dB/L&R1kHz/-10dB/L&R1kHz/-20dB/L&R1kHz/-60dB/L&R1kHz/-80dB/L&R1kHz/-90dB/L&RInfinity Zero w/o emphasis/L&RInfinity Zero with emphasis/L&R400Hz+7kHz(4:1)/0dB/L&R400Hz+7kHz(4:1)/-10dB/L&R19kHz+20kHz(1:1)/0dB/L&R19kHz+20kHz(1:1)/-10dB/L&R100Hz/0dB/L*1kHz/0dB/L*10kHz/0d
23、B/L*20kHz/0dB/L*100Hz/0dB/R*1kHz/0dB/R*10kHz/0dB/R*20kHz/0dB/R*100Hz Squer Wave/L&R1kHz Squer Wave/L&R1kHz w/emphasis/-0.37dB/L&R5kHz w/emphasis/-4.53dB/L&R16kHz w/emphasis/-9.04dB/L&RNote : The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.S
24、HIPMENT MODEPerformed when returning the unit to the customer.Custom File Erases all custom files and initializes settings.Procedure:1. Remove the discs from all trays.2. While pressing the DISK SKIP button and PROGRAM but-ton, press the POWER button to turn ON the power.3. “NO DISC” is displayed, i
25、ndicating that the mode has ended.Note:“NO DISC” may be displayed even if there are discs on thetrays.5TRACKNo.Recorded contentsDisplayT All the sameT All the sameT All the sameT All the sameT All the sameT All the sameT All the sameX Y Z _ (58X a b c d e f g (60T All the sameT All the samex y z I (
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