Sony-CDP-CE575-Service-Manual电路原理图.pdf
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1、SERVICE MANUAL COMPACT DISC PLAYER US Model Canadian Model AEP Model SPECIFICATIONS CDP-CE575 Ver 1.1 2001.07 9-929-586-12Sony Corporation 2001G0500-1Home Audio Company C 2001.7Shinagawa Tec Service Manual Production Group Model Name Using Similar MechanismNEW CD Mechanism TypeCDM59-5BD27 Base Unit
2、NameBU-5BD27 Optical Pick-up NamePXR-104X Compact disc player LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Frequency response2 Hz to 20 kHz 0 5 dB Dynamic rangeMore than 93 dB Harmonic distortionLess than 0 0045% Outputs ANALOG OUT DIGITAL OUT (OPTICAL) PHONES General Power req
3、uirements120 V AC, 60 Hz Power consumption11 W Dimensions (approx )430 x 110 x 400 mm (w/h/d)(17 x 4 3/8 x 15 3/4 in ) incl projecting parts Mass (approx )5 2 kg (11 lbs 8 oz) Supplied accessories Audio cord (2 phono plugs 2 phono plugs) (1) Remote commander (remote) (1) R6 (size AA) batteries (2) D
4、esign and specifications are subject to change without notice. Load impedance Over 10 kilohms Wave length: 660 nm 32 ohms Jack type Phono jacks Optical output connector Stereo phone jack Maximum output level 2 V (at 50 kilohms) 18 dBm 10 mW RadioFans.CN 收音机爱 好者资料库 2 CDP-CE575 SAFETY CHECK-OUT After
5、correcting the original 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 TEST The AC leakage
6、 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 microamperes.). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such as the Simpson 229 or RCA W
7、T-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” indica- tio
8、n is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) Fig. A.Using an AC voltmeter to check AC
9、leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground TABLE OF CONTENTS 1.SERVICEING NOTES.3 2.GENERAL.6 3.DISASSEMBLY 3-1.Disassembly Flow .8 3-2.Case (409538) .9 3-3.Front Panel Section .9 3-4.CD Mechanism Deck (CDM59-5BD27). 10 3-5.MAIN Board . 10 3-6.Base Unit (BU
10、-5BD27). 11 3-7.Table Assy . 11 3-8.Sensor Board . 12 3-9.Loading Motor Board . 12 4.ASSEMBLY. 13 5.TEST MODE. 14 6.ELECTRICAL ADJUSTMENTS. 18 7.DIAGRAMS 7-1.Note for Printed Wiring Boards and Schematic Diagrams . 21 7-2.Printed Wiring Board BD Section . 22 7-3.Schematic Diagram BD Section . 23 7-4.
11、Printed Wiring Boards MOTOR/SENSOR Section . 24 7-5.Schematic Diagram MOTOR/SENSOR Section . 25 7-6.Schematic Diagram MAIN Section (1/2) . 26 7-7.Schematic Diagram MAIN Section (2/2) . 27 7-8.Printed Wiring Boards MAIN Section . 28 7-9.Printed Wiring Boards DISPLAY Section . 30 7-10. Schematic Diagr
12、am DISPLAY Section . 31 7-11. IC Pin Function Description . 32 8.EXPLODED VIEWS 8-1.Case Section . 36 8-2.Front Panel Section . 37 8-3.Chassis Section . 38 8-4.CD Mechanism Deck Section-1 (CDM59-5BD27) . 39 8-5.CD Mechanism Deck Section-2 (CDM59-5BD27) . 40 8-6.Base Unit Section (BU-5BD27) . 41 9.EL
13、ECTRICAL PARTS LIST. 42 ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS
14、 CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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
15、IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. Ver 1.1 2001.07 RadioFans.CN 收音机爱 好者资料库 3 CDP-CE575 SECTION 1 SERVICING NOTES The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc.
16、 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 o
17、n 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 emis- sion, observe from more than 30 cm away from the objective lens. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT
18、 MODEL IDENTIFICATION BACK PANEL ModelPart No. US model4-233-720-0s Canadian model4-233-720-1s AEP model4-233-720-2s HOW TO OPEN THE DISC TABLE WHEN POWER SWITCH TURNS OFF Insert a tapering driver into the aperture of the unit bottom, and turn it in the direction of the arrow (to OUT direction). tab
19、le tapering 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 component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. Flexible Circuit Board Repairi
20、ng Keep the temperature of the soldering iron around 270 C dur- ing 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 CLEANING OF OPTICAL PICK-UP LENS Do not c
21、lean up the optical pick-up lens. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveforms is output three times. L
22、ASER DIODE AND FOCUS SEARCH OPERATION CHECK This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Part No. 4 CDP-CE575 CD-TEXT TEST DISC This unit is able to display the TEXT data (character information) written in the CD on its f
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