Sony-CDPCX50-cd-sm 电路图 维修手册.pdf

《Sony-CDPCX50-cd-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Sony-CDPCX50-cd-sm 电路图 维修手册.pdf（45页珍藏版）》请在收音机爱好者资料库上搜索。

1、 1 SPECIFICATIONS Model Name Using Similar MechanismNEW CD Mechanism TypeCDM-46 Base Unit TypeKSM-213BFN/M-NP Optical Pick-up TypeKSS-213B/S-N SERVICE MANUAL MICROFILM CDP-CX50/CX571 Photo : CDP-CX50 US Model Canadian Model AEP Model E Model Australian Model CDP-CX50/CX571 UK Model CDP-CX571 COMPACT

2、 DISC PLAYER RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1. SERVICING NOTE. 3 2. GENERAL. 4 3. DISASSEMBLY 3-1. Front Panel . 9 3-2. Illumination ASSY. 9 3-3. Base Unit and Magnet Holder. 10 3-4. CD Mechanism Section . 11 4. TEST MODE.12 5. MESHANICAL ADJUSTMENTS. 15 6. ELECTRICAL ADJUSTMENTS. 18 7.

3、 DIAGRAMS 7-1. Circuit Boards Location.20 7-2. Printed Wiring Board BD Section .21 7-3. Schematic Diagram BD Section . 23 7-4. Printed Wiring Board Main Section .26 7-5. Schematic Diagram Main Section .29 7-6. Printed Wiring Board Panel Section .32 7-7. Schematic Diagram Panel Section .35 7-8. IC Pi

4、n Functions .38 7-9. IC Block Diagrams . 44 8. EXPLODED VIEWS 8-1. Case Section. 46 8-2. Front Panel Section . 47 8-3. Chassis Section . 48 8-4. Mechanism Deck Section 1 (CDM-46) . 49 8-5. Mechanism Deck Section 2 (CDM-46) . 50 8-6. Optical Pick-up Section (KSM-213 BFN/M-NP). 51 9. ELECTRICAL PARTS

5、LIST.52 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. The laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1

6、LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. This caution label is located inside the unit. 4-987-981-01 4-987-981-11 4-987-981-21 4-987-981-31 4-987-981-41 4-987-981-51 4-989-203-01 4-989-203-11 4-989-203-21 4-989-203-31 4-989-203-41 4-989-203-51 CX50 : US model

7、 CX50 : Canadian model CX50 : AEP, G model CX50 : Australian model CX50 : E model CX50 : Singapore model CX571 : US model CX571 : Canadian model CX571 : E model CX571 : Singapore, Australian model CX571 : AEP, G model CX571 : UK model PARTS No.MODEL MODEL IDENTIFICATION BACK PANEL RadioFans.CN 收音机爱

8、好者资料库 3 SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety checks 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 be

9、low. 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). Leak- age current can be measured by any one of three methods. 1. A commercial leakage tester, such

10、 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 resistor by means of a VOM or battery-operated AC volt

11、meter. 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 pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) Fig. A. Using an

12、AC voltmeter to check AC leakage. To Exposed Metal Parts on Set 0.15F1.5k AC voltmeter (0.75V) Earth Ground NOTES ON HANDLING THE OPTICAL 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 ch

13、arged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown 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 EM

14、ISSION 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 optical pick- up block. Therefore, when checking the laser diode emission, ob- serve from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEAR

15、CH OPERATION CHECK Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output repeatedly. SECTION 1 SERVICING NOTE SAFETY-RELATED COMPONENT WARNING ! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST

16、 ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PI

17、CES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. RadioFans.CN 收音机爱 好者资料库 4 SECTION 2 GENERAL LOCATION OF PARTS AND CONTROLS Front Panel 1 POWER switch 2 Front cove

18、r 3 CONTINUE button 4 Display window 5 SHUFFLE button 6 PROGRAM button 7 REPEAT button 8 DISC/PUSH ENTER button 9 CHECK button ! CLEAR button ! ) button ! 0 button ! p button ! P button ! button ! PLUS ONE button 21876543 0 9 ! 5 This section is extracted from instruction manual. 6 7 8 9 Note : Foll

19、ow the disassembly procedure in the numerical order given. 3-1. FRONT PANEL 2Two screws (BVTT3x6) 5Screw (BVTT3x6) 6Reinforcement 7Flat type wire (11 core)AUDIO board: CN801 BD board: CN103 AUDIO board: CN803 8Flat type wire (9 core) 9Connector (7P) 0Three screws (BVTT3x10) !Front panel 3-2. ILLUMIN

20、ATION ASSY D A B C While pressing arrows A, B, and C, rotate the illumination assembly in arrow direction D and remove it. SECTION 3 DISASSEMBLY 3 Bracket (ILLUMINATION) 4Screw (BVTT3x6) 1Screw (BVTT3x6) !claw Expand the front panel in the direction of arrow B to release catching claws. B A ILLUMINA

21、TION ASSY !claw Expand the front panel in the direction of arrow A to release catching claws. 10 3-3. BASE UNIT AND MAGNET HOLDER 2Bracket 1Two screws (BTP2.6x8) Remove in the arrow direction while pressing the claw with a screwdriver, etc. Remove in the arrow direction while pressing the claw with

22、a screwdriver, etc. 4Magnet holder 0Torsion spring (Holder) 9BU holder 8Tension coil spring (F-2) 6Two screws (PTPWH2.6x8) 7Tension coil spring (F-1) 5Two screws (PTPWH2.6x8) 3Screw (BTP2.6x10) 11 3-4. CD MECHANISM SECTION NOTE: Adjust the position of the gear as shown in the figure when attaching.

23、6Slider (Lock) 7Slider (Cam) 0Slider (Loading) 4Cam cover 3Screw (BTP2.6x8) 1Screw (BTP2.6x8) 2SW board 9Torsion spring (Loading) 8Disc holder (A) !Loading lever ASSY !Tension coil spring (Lever) !Disc holder (B) 5Screw (BTP2.6x8) !Screw (BTP2.6x8) !Cover (Lever) 12 SECTION 4 TEST MODE DISPLAY CHECK

24、 MODE NOTE: This will not work properly if the DISC is set to any slit. 1. Press the POWER button, turn ON the power, and set a CD in any slit. 2. Press the POWER button, and turn OFF the power. 3. While pressing the CHECK and PLUS ONE buttons together with the power OFF, press the POWER button and

25、turn ON the power. 4. All the segments of the fluorescent indicator tube light up, and the , P , and PLUS ONE LEDs light up. 5. To exit the display check mode, press the POWER button or p button. ADJ MODE 1. Press the POWER button to turn the power ON. 2. Open the front cover, and press the PLUS ONE

26、 button. 3. Set the disc (YEDS-18 : 3-702-101-01) in the PLUS ONE slit. 4. Close the front cover, and chuck the disc. 5. Press the POWER button, and turn OFF the power. 6. Connect TP (TP301:ADJ) of the DISPLAY board and the ground with a lead wire. 7. Press the POWER button and turn ON the power. Th

27、e ADJ mode is set with the above. Differences with normal mode No high speed search is performed during access Ignored even if GFS becomes L Ignored even if Q data cannot be read Spindle servo gain is set to 12 cm mode (Even with 8 cm disc) The following special functions will work when certain func

28、tions are pressed in this mode. Special functions in ADJ mode (The ( ) buttons function only with the general purpose remote.) ButtonFunction (3) (8) CHECK Tracking servo , sled servo OFF Tracking servo, sled servo ON S shape observation mode FLUORESCENT INDICATOR TUBE, LED ALL LIT, AND KEY CHECK MO

29、DE Connect TP (TP302:AFADJ) of the DISPLAY board and the ground with the power OFF and press the POWER button. The fluorescent indicator tube and LEDs all light up. When a button is pressed, the left side of the indicator tube will show how many buttons have been pressed so far. (However, buttons al

30、ready pressed once will not be counted.) The right side will show the numbers corresponding to the pressed buttons. DISPLAY BOARD CONDUCTOR SIDE CNP804 IC801 TP301 (ADJ) CNP801 Buttons and Corresponding Button Numbers ButtonButton Number or Display 1 2 3 4 5 6 7 8(The fluorescent indicator tube and

31、LED near by (D801) are lit while pressed.) 9(The fluorescent indicator tube (segment check) is partially lit and LED near by (D802) is lit while pressed.) 10 (The fluorescent indicator tube is partially lit while pressed (grid check).) 11 12 CONTINUE SHUFFLE PROGRAM REPEAT CHECK CLEAR PLUS ONE P p 0

32、 ) Count up Button number 0512 TP302 (AFADJ) 13 Sequence of Aging Mode $ $ $ $ $ $ $ $ $ Order of Disc Change (1 cycle takes 3 minutes) $ $ $ 1. No. 51 2. No. 20 3. No. 40 4. No. 30 5. No. 10 6. N0. 40* $ $ $ $ * DISC No. 40 chucks twice during one cycle. To differentiate, the “8” on the block indic

33、ator of the fluores- cent indicator tube will light up during the second chucking. 1. Disc change 2. Load in 3. TOC read 4. Access of last track 5. 3 second playback 6. Access of first track 7. 3 second playback 8. Load out 1. Grid check PROGRAMREPEATREMOTE 2. Segment check 1 2 - -nn Key Inputs Othe

34、r than Buttons and How to Display Key inputDisplay Rotate the JOG knob to the right Rotate the JOG knob to the left Press the JOG knob (ENTER) Door cover “Close” Door cover “Open” Fluorescent indicator tube block indicator lights up in the order of 1 n 2 n .8 n 1. Fluorescent indicator tube block in

35、dicator lights up in the order of 8 n 7 n . 1 n 8. Fluorescent indicator tube block indicator goes OFF. PLUS ONE LED lights up PLUS ONE LED goes OFF 12345678 block indicator AGING MODE Mode which repeatedly changes and plays back discs automati- cally in the unit. It will repeat aging as long as no

36、errors occur. If an error occurs during aging, it will stop all servos, motors, etc. instantaneously, display the error number, and stop operations. However, the stopping conditions differ according to whether the unit is equipped with the “self-protection function during errors” described later. Th

37、e function serves to maintain the state of the unit when errors occur. Special Functions in Aging Mode There are some useful function in the aging mode. Disc setting mode*1 Switching of use/disuse of protection function in errors *2 Aging cycle count function *3 *1 Disc setting mode: 5 discs are set

38、 before setting the aging mode. This mode makes the setting of these discs more easy. *2 Switching of use/disuse of protection function in errors: Function which voluntarily corrects errors which occur during normal operations by retries. If this function is not provided, all operations will be stop

39、ped without retiring. It is suitable for checking errors with low re- producibility. If this function is provided, and errors can be corrected by re- tries, aging will be continued without stopping. (The normal aging should be performed with “be”.) *3 Aging cycle count function: Functions which disp

40、lays the number of agings carried out on the Fluorescent indicator tube in numbers. One aging cycle con- sists of six discs. TRACK 1 DISC 51 MIN SEC 0.010.1 Disc numberTrack numberAgings carried (Hexadecimal) 14 Aging procedure: Some operating method will be changed depending on if the fol- lowing j

41、ig for the aging mode exists or not. Jig Parts. NoDescription J-2501-123-ARemote commander (For aging mode) With remote commander for aging mode: 1. Turn ON the power of the unit. Open the front cover. 2. Press the AGING START button of the remote commander for aging mode. 3. When the disc set mode

42、is set, the and P LEDs blink. 4. Rotate the JOG dial. The slits (No. 10, 20, 30, 40, 51) for setting the discs will come forward. Insert the discs into these slits. Do not set the discs in other slits. 5. Set the use/disuse of the self protection function in errors. Press the REPEAT button. When REP

43、EAT is displayed on the fluo- rescent indicator tube, the self protection function during the error will become “Use”. If the REPEAT display is OFF, it means that the function is not used. (Normally set to “Use” when performing aging.) 7. Press the button. 8. The LED blinks, the aging mode is set, a

44、nd aging is started. 9. The aging cycle lasts 3 minutes. When problems occur during aging, the error number will be displayed on the fluorescent in- dicator tube, and the P LED will light up. (Refer to the following table for the details of the errors.) 10. Aging will be repeated as long as no error

45、s occur. 11. After each aging cycle, the number displayed on the Fluores- cent indicator tube will increase. 12. To end aging, press the POWER button Error Display Without remote commander for aging mode: 1. Turn ON the power of the unit. Open the front cover. 2. Press the CLEAR , 0 , and buttons in order. 3. When the disc set mode is set, the and P LEDs blink. The following procedure is the same as in the case “With remote commander for aging mode”. Error code ContentsNameCode number No disc in the specified slit Disc in other slits No function No table sensor