Sony-CDPCE575-cd-sm 维修电路原理图.pdf
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1、SERVICE MANUALCOMPACT DISC PLAYERUS ModelCanadian ModelAEP ModelSPECIFICATIONSCDP-CE575Ver 1.1 2001.079-929-586-12Sony Corporation2001G0500-1Home Audio CompanyC 2001.7Shinagawa Tec Service Manual Production GroupModel Name Using Similar MechanismNEWCD Mechanism TypeCDM59-5BD27Base Unit NameBU-5BD27O
2、ptical Pick-up NamePXR-104XCompact disc playerLaserSemiconductor laser ( =780 nm)Emission duration:continuousFrequency response2 Hz to 20 kHz 0 5 dBDynamic rangeMore than 93 dBHarmonic distortionLess than 0 0045%OutputsANALOGOUTDIGITALOUT(OPTICAL)PHONESGeneralPower requirements120 V AC, 60 HzPower c
3、onsumption11 WDimensions (approx )430 x 110 x 400 mm(w/h/d)(17 x 4 3/8 x 15 3/4 in )incl projecting partsMass (approx )5 2 kg (11 lbs 8 oz)Supplied accessoriesAudio cord (2 phono plugs 2 phono plugs) (1)Remote commander (remote) (1)R6 (size AA) batteries (2)Design and specifications are subject to c
4、hangewithout notice.LoadimpedanceOver 10kilohmsWavelength:660 nm32 ohmsJacktypePhonojacksOpticaloutputconnectorStereophonejackMaximumoutput level2 V(at 50 kilohms)18 dBm10 mWRadioFans.CN 收音机爱 好者资料库2CDP-CE575SAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety
5、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 part to earth ground andfrom all exposed metal parts
6、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 instructions to use theseinstruments.2.A battery-
7、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 have an accurate low-voltage scale. The Simpson 250 a
8、nd 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 Exposed MetalParts on SetEarth GroundTABLE OF CONTEN
9、TS1.SERVICEING NOTES.32.GENERAL.63.DISASSEMBLY3-1.Disassembly Flow .83-2.Case (409538) .93-3.Front Panel Section .93-4.CD Mechanism Deck (CDM59-5BD27). 103-5.MAIN Board . 103-6.Base Unit (BU-5BD27). 113-7.Table Assy . 113-8.Sensor Board . 123-9.Loading Motor Board . 124.ASSEMBLY. 135.TEST MODE. 146.
10、ELECTRICAL ADJUSTMENTS. 187.DIAGRAMS7-1.Note for Printed Wiring Boards andSchematic Diagrams . 217-2.Printed Wiring Board BD Section . 227-3.Schematic Diagram BD Section . 237-4.Printed Wiring Boards MOTOR/SENSOR Section . 247-5.Schematic Diagram MOTOR/SENSOR Section . 257-6.Schematic Diagram MAIN S
11、ection (1/2) . 267-7.Schematic Diagram MAIN Section (2/2) . 277-8.Printed Wiring Boards MAIN Section . 287-9.Printed Wiring Boards DISPLAY Section . 307-10. Schematic Diagram DISPLAY Section . 317-11. IC Pin Function Description . 328.EXPLODED VIEWS8-1.Case Section . 368-2.Front Panel Section . 378-
12、3.Chassis Section . 388-4.CD Mechanism Deck Section-1(CDM59-5BD27) . 398-5.CD Mechanism Deck Section-2(CDM59-5BD27) . 408-6.Base Unit Section (BU-5BD27) . 419.ELECTRICAL PARTS LIST. 42ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0SUR LES DIAGRAMMES SCHMATIQU
13、ES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM-POSANTS QUE PAR DES PICES SONY DONT 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
14、 SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.Ver 1.1 2001.07RadioFans.CN 收音机爱 好者资料库3CDP-CE575SECTION 1SERVICING NOTESThe laser diode in the optical
15、 pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing and the humanbody.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepa
16、ir 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 focusedon the disc reflective surface by the objective lens in the opticalpick-up block. Therefore, when checking the laser diode e
17、mis-sion, observe from more than 30 cm away from the objective lens.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITMODEL IDENTIFICATION BACK PANEL ModelPart No.US model4-233-720-0sCanadian model4-233-720-1sAEP model4-233-720-2sHOW TO OPEN THE DISC TABLE WHEN POWERSWITCH TURNS OFFInsert a tap
18、ering driver into the aperture of the unit bottom, 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).Notes on chip component replacement Never reuse a disconnected chip compone
19、nt. Notice that the minus side of a tantalum 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 app
20、ly force on the conductor when solderingor unsoldering.NOTES ON CLEANING OF OPTICAL PICK-UP LENSDo not clean up the optical pick-up lens.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.Carry out the “S cu
21、rve check” in “CD section adjustment” andcheck that the S curve waveforms is output three times.LASER DIODE AND FOCUS SEARCH OPERATIONCHECKThis appliance is classified as a CLASS 1 LASER product.The CLASS 1 LASER PRODUCT MARKING is located onthe rear exterior.Part No.4CDP-CE575CD-TEXT TEST DISCThis
22、unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube.The CD-TEXT TEST DISC (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 th
23、e disc.2. Press the H button and playback the disc.3. The following will be displayed on the fluorescent indicator tube.Display : 1kHz/0 dB/ L&R4. Turn the 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 “
24、Table 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CD-TEXT TEST DISC Recorded Contents and Display”.Restrictions in CD-TEXT DisplayIn 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 “
25、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)11kHz/0dB/L&R220Hz/0dB/L&R340Hz/0dB/L&R4100Hz/0dB/L&R5200Hz/0dB/L&R6500Hz/0dB/L&R71kHz/0dB/L&R85kHz/0dB/L&R97kHz/0dB/L&R1010kHz/0dB/L&R1116kHz/0dB/L&R1218kHz/0dB
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