Sony-CDP-CA70ES-Service-Manual(1) 电路图 维修手册.pdf

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1、CDP-CA70ES US Model Canadian Model SERVICE MANUAL COMPACT DISC PLAYER MICROFILM Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. SPECIFICATIONS Model Name Using Similar MechanismNEW

2、 CD Mechanism TypeCDM27I Base Unit NameBU-5BD25 Optical Pick-up NameKSS-213B/S-N Compact Disc Player LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Laser outputMax 44.6 W* * This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical P

3、ick-up block with 7 mm aperture. Frequency response2 Hz to 20 kHz 0.3 dB Signal-to-noise ratioMore than 117 dB Dynamic rangeMore than 99 dB Harmonic distortionLess than 0.0025% Channel separationMore than 110 dB Output JackMaximumLoad typeoutputimpedance level LINE OUTPhono2VOver 10 k jacks(at 50 k)

4、 DIGITAL OUTOptical18 dBmWave length: (OPTICAL)output660 nm connector PHONESStereo15 mW32 phone jack General Power requirements120 V AC, 60 Hz Power consumption15W Dimensions (approx.)430 125 400 mm (w/h/d)(17 5 15 3/4 in.) incl. projecting parts Mass (approx.)6.4 kg (14 lbs 2 oz) Supplied accessori

5、es Audio cord (2 phono plugs2 phono plugs) (1) Remote commander (remote) (1) R6(SIZE AA)batteries (2) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1.SERVICE NOTE4 2.GENERAL 7 3.DISASSEMBLY 3-1.Front Panel 9 3-2.Disc Table Assembly and Di

6、sc Table and Press Pulley 9 3-3.Main Board 10 3-4.CDM Assembly 10 3-5.Optical Pick-up Block Assembly 11 3-6.Bracket (Gear) Assembly 11 4.TEST MODE 12 5.ELECTRICAL BLOCK CHECKING 15 6.DIAGRAMS 6-1.Circuit Boards Location 17 6-2.Block Diagram 19 6-3.Schematic Diagram BD Section 21 6-4.Printed Wiring B

7、oard BD Section 23 6-5.Printed Wiring Board Main Section 25 6-6.Schematic Diagram Main Section (1/2) 27 6-7.Schematic Diagram Main Section (2/2) 29 6-8.Schematic Diagram HP Section 31 6-9.Printed Wiring Board HP Section 32 6-10. Schematic Diagram Display Section 33 6-11. Printed Wiring Board Display

8、 Section 35 6-12. IC Block Diagrams 37 6-13. IC Pin Functions 40 7.EXPLODED VIEWS 7-1.Front Panel and Case Section 44 7-2.Back Panel and Disc Table Section 45 7-3.Chassis Section 46 7-4.Base Unit Section (BU-5BD22) 47 8.ELECTRICAL PARTS LIST 48 RadioFans.CN 收音机爱 好者资料库 3 NOTES ON HANDLING THE OPTICAL

9、 PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the p

10、rocedure 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 lens in the

11、 optical pick- up block. Therefore, when checking the laser diode emission, observe 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 radiation exposure. Notes on chip compo

12、nent replacement Never reuse 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 ci

13、rcuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is

14、located on the rear exterior. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED 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

15、SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS 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 PISES SONY DONT LES NUMROS SONT DONNS

16、DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. SAFETY CHECK-OUT (US model only) After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other expos

17、ed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage 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 microampers). Leakage current can be measured by any

18、one of three methods. 1.A commercial leakage tester, such as the Simpson 229 or RCA WT-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

19、 resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication 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 passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V

20、AC range are suitable. (See Fig. A) Earth Ground AC voltmeter (0.75V) 1.5k0.15F Fig. A. Using an AC voltmeter to check AC leakage. To Exposed Metal Parts on Set RadioFans.CN 收音机爱 好者资料库 4 SECTION 1 SERVICING NOTE HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF NOTE FOR MAIN GEAR INSTALLATION 5

21、Stopper washer (5) 3 Rotate the GEAR (U/D) to the arrow A direction. 4 Install the MAIN GEAR as show in the drawing. 2 Slide the SET LEVER to the arrow B direction. 1 Set the mark of ROTARY ENCODER. A B INOUT Tray Insert a tapering driver into the aperture of the unit bottom, and turn in the directi

22、on of arrow (to OUT direction). * To close the disc tray, turn driver in the reverse direction (to IN direction). 5 SHIPMENT MODE This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is u

23、sed for checking the display. To check, perform the following procedure. Checking Method: 1.Turn ON the power, set the disc on the disc table with the side labeled as “test disc” as the right side, close the front cover, and chuck the disc. 2.Press the ” button and play back the disc. 3.The followin

24、g will be displayed on the fluorescent indicator tube. Display : 1kHz/0 dB/ L ?(38h to 3Fh) A B C D E F G(40h to 47h) H I J K L MNO(48h to 4Fh) P QR S T U VW(50h to 57h) X Y Z _(58h to 5Fh) a b c d e f g(60h to 67Fh) h i j k l m n o(68h to 6Fh) p q r s t u v w(70h to 77h) x y z I (78h to 7Fh) i (A0h

25、 to A7h) 8859-1 C PR (A8h to AFh) 23 (B0h to B7h) 1 (B8h to BFh) (C0h to C7h) (C8h to CFh) D (D0h to D7Fh) Y(D8h to DFh) (E0h to E7h) (E8h to EFh) (F0h to F7h) y(F8h to FFh) No.66 No.67 to No.99 Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be

26、 displayed. This is not a fault.) * 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 to 99 3 4 1 2 1 4 3 4 1 2 1 4 7 SECTION 2 GENERAL 123 4 56 7 9 !? !?!?!?!?!?!?!? 8 Identifying the Parts Front Panel 1POWER (1/u) switch 2DISC (15) buttons 3CONTINUE button 4SHUFFLE butt

27、on 5PROGRAM button 6EX-CHANGE button 7DISC SKIP button 8 OPEN/CLOSE button 9” (CD PLAY) button !p (CD STOP) button !PHONE LEVEL button !P (pause) button !PHONES jack !TIME/NEXT button !REPEAT button !AMS ( ) buttons !Numeric buttons 8 This section is extracted from instruction manual. 9 SECTION 3 DI

28、SASSEMBLY 3-2.DISC TABLE ASSEMBLY AND DISC TABLE AND PRESS PULLEY Note : Follow the disassembly procedure in the numerical order given. 3-1.FRONT PANEL 1 Remove top cover. 2 Eject the disc table referring to SERVICING NOTE (Page 4). 6 Nine screws M 3 12 ! Three screws M 3 12 ! Connector (CN351) 9 Co

29、nnector (CN403) ! Flat type wire (15 core) (CN402) 5 Loading panel Loading panel 4 4 3 3 3 7 Three screws +BVTT 3 6 ! Three screws +BVTP 2.6 8 ! Reinforcement (panel) ! Front panel ! Three screws +BVTT 3 6 8 Bottom board ! Press pulley(L) ! Chucking yoke ! Magnet 1 Screw (BVTP 3 8) 3 Screw +BVTP 3 8

30、 7 Screw (BVTP 3 8) 5 Screw (BVTP 3 8) 2 Bracket (guide F1) 6 Bracket (guide F1) 4 Bracket (guide B1) ! Insert an ice pick tip and hold it. ! Rotate the press pulley(L) in the arrow direction. 8 Bracket (guide B1) 9 Flat type wire (6 core) ! Disc table assembly ! Screw (M 3 12) ! Disc table (B) 10 3

31、-4.CDM ASSEMBLY 3-3.MAIN BOARD 1 Connector (CN601) 2 Connector (to Rotary encoder) 3 Flat type wire (23 core)(CN401) 4 Two screws (BVTT 3 6) 8 Flat type wire (6 core)(CN504) 8 Main board 7 Two claws 5 Two screws (BV/ring) 6 Seven screws (BVTP 3 8) 1 Five screws (BV/ring) 3 Two screws (BVTT 3 8) 4 Br

32、acket (transformer) and bracket (board) 6 CDM assembly 2 Back panel 11 3-6.BRACKET (GEAR) ASSEMBLY Note : As for the installation of the main gear, refer to “Note for MAIN GEAR installation” on page 4. 3-5.OPTICAL PICK-UP BLOCK ASSEMBLY 2 Screw (M 3 12) 3 Two screws (PTPWH 2.6 6) 8 Optical pick-up b

33、lock assembly 7 Compression spring (BU) 6 Compression spring (BU) 5 Holder (BU) 4 Two screws (PTPWH 2.6 6) 1 Flat type wire (23 core) (BD board, to CN101) 1 Stopper washer (5) 3 Stopper washer (5)2 Gear (REV) 4 Gear (MAIN) 8 Gear (U/D) 6 Rotary encoder 7 Stopper washer (5) 9 Five screws (BVTP 3 8) 5

34、 Screw (BVTP 3 8)! Bracket (GEAR) assembly 12 SECTION 4 TEST MODE ADJ MODE 1. Chuck the CD first, and then turn OFF the power. 2. Short-circuit the test point (TP2:ADJ) of the main board and ground with a lead wire. 3. Press the 1/u button to turn ON the power. The CD is played back automatically an

35、d the ADJ mode is set. 4. To exit the mode, press the 1/u button to turn OFF the power. Prohibits high speed search during accessing Ignores even if GFS becomes L ADJ Mode Special Function Table ButtonFunction 3 8 Tracking servo, sled servo OFF Tracking servo, sled servo ON FLUORESCENT INDICATOR TUB

36、E, LED ALL LIT, AND KEY CHECK MODE 1. Short-circuit the test (TP1:AFADJ) of the main board and ground with a lead wire. 2. Press the 1/u button to turn ON the power. The whole fluorescent indicator tube lights up. Nothing will be displayed when the SRAM is faulty or improperly soldered. 3. All butto

37、ns have individual button numbers. When a button is pressed, the button number is counted up and displayed. Buttons and Corresponding Button Numbers ButtonButton Number or Display CONTINUE SHUFFLE PROGRAM REPEAT TIME/TEXT DISC CHECK DISC1 DISC2 DISC3 DISC4 DISC5 ( (PLAY) P (PAUSE) p (STOP) EX-CHANGE

38、 DISC SKIP OPEN/CLOSE AMS AMS 1 2 3 4 5 6 7 8 9 10 10 18 17 16 9 8 30 23 22 21 20 19 Partial lighting 1 (Grid check) 28 Partial lighting 2 (Segment check) 24 25 All lit (LED lighting) 30 31 4 3 2 1 0 15 14 13 12 11 10 When remote controller signals are received, “RM *” will be displayed. (* are the

39、numbers corresponding to the remote controller keys.) When using the remote controller, switch the COMMAND MODE switch to CD1. 4. To exit the mode, press the 1/u button to turn OFF the power.MAIN BOARD CONDUCTOR SIDE Count up displayDisplays button number 10 IC501 R544 TP2 (ADJ) TP1 (AFADJ) 13 All l

40、it 12345 6789 10 11 12 13 14 15 16 17 18 19 20 Partial lighting 1 Partial lighting 2 ? Light alternately ? Light alternately ? Light alternately 14 AGING MODE This unit is equipped with an aging mode to check operations of the mechanism deck. When faults occur: Aging stops, and the state when aging

41、stopped is displayed on the fluorescent display tube. When no fault has occurred: Aging is continued repeatedly. Note:Do not use the test disc when performing aging. Aging will not be performed properly if discs with tracks shorter than 4 seconds are used. Aging method 1 (When using the aging mode r

42、emote controller (J-2501-123-A): 1. Set the COMMAND MODE switch to CD1. 2. Press the 1/u button and turn ON the power. 3. Set discs on all trays. (More than two discs if five are not available.) 4. Press the AGING START button of the aging remote controller. 5. Aging starts and the message shown in

43、Fig. 1 is displayed on the fluorescent display tube. 6. To end, press the 1/u button. Aging method 2 (When no aging mode remote controller): 1. Press the 1/u button and turn ON the power. 2. Set discs on all trays. (More than two discs if five are not available.) 3. Press the 4 button, 0 button, and

44、 DISC SKIP button in this order together. 4. Aging starts and the message shown in Fig. 1 is displayed on the fluorescent display tube. 5. To end, press the 1/u button. Fig. 1 Aging Operations and Their Messages The discs are selected in the order of DISC 1 n DISC 2 n DISC 3 n DISC 4 n DISC 5 n DISC

45、 1 n . Empty trays are skipped. Code No.State 1 2 3 4 5 6 7 8 9 A 0 TOC reading Accessing last track Playing back last track (3 seconds) EX-CHANGE (Tray opened while chucking) DISC SKIP (Disc tray rotated) CLOSE (Tray closed) Accessing first track Playing back first track (3 seconds) OPEN (Tray open

46、ed) DISC SKIP (Disc tray rotated, and next disc was selected) CLOSE (Tray closed) Display when Normal AGING 1 AGING 2 Counter display AGING 4 AGING 5 AGING 6 AGING 7 Counter display AGING 9 AGING A AGING 0 Display when Abnormal AGING NG1 AGING NG2 AGING NG3 AGING NG4 AGING NG5 AGING NG6 AGING NG7 AG

47、ING NG8 AGING NG9 AGING NGA AGING NG0 15 SECTION 5 ELECTRICAL BLOCK CHECKING Note: 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10M impe

48、dance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. S Curve Check Procedure : 1. Connect oscilloscope to test point TP (FE1) on BD board. 2. Connect between test point TP (FE1) and TP (VC) by lead wire.

49、3. Connect both ends of TP R151 of the BD board to the lead wire. 4. Turn ON the power. 5. Put disc (YEDS-18) in and actuate the focus search. (actuate the focus search when disc table is moving in and out.) 6. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 4.5 1 Vp-p