Sony-CDPXB820-cd-sm 电路图 维修手册.pdf

《Sony-CDPXB820-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-CDPXB820-cd-sm 电路图 维修手册.pdf（40页珍藏版）》请在收音机爱好者资料库上搜索。

1、MICROFILM SERVICE MANUAL COMPACT DISC PLAYER AEP Model Model Name Using Similar MechanismNEW CD Mechanism TypeCDM36-14E Base Unit TypeBU-14E Optical Pick-up TypeKSS-213B/F-NP SPECIFICATIONS CDP-XB820 Continued on next page RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.6 3

2、.DISASSEMBLY.7 4.TEST MODE 4-1.AF ADJ Mode .9 4-2.ADJ Mode . 10 4-3.CLV-S Mode. 10 4-4.AGING Mode. 11 5.ELECTRICAL BLOCK CHECKING. 12 6.DIAGRAMS 6-1.IC Pin Function Description . 14 6-2.Note for Printed Wiring Boards and Schematic Diagrams . 16 6-3.Printed Wiring Board BD Section . 19 6-4.Schematic

3、Diagram BD Section . 21 6-5.Printed Wiring Boards OPTICAL PICK-UP/MOTOR Section . 23 6-6.Schematic Diagram OPTICAL PICK-UP/MOTOR Section . 24 6-7.Printed Wiring Board MAIN Section . 25 6-8.Schematic Diagram MAIN Section (1/2) . 27 6-9.Schematic Diagram MAIN Section (2/2) . 29 6-10. Printed Wiring Bo

4、ards POWER Section . 31 6-11. Schematic Diagram POWER Section . 33 6-12. Printed Wiring Boards PANEL Section . 35 6-13. Schematic Diagram PANEL Section . 37 7.EXPLODED VIEWS. 42 8.ELECTRICAL PARTS LIST. 46 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! O

5、N 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 SUPPLEMENTS PUB- LISHED BY SONY. RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 SERVICING NOTES The laser diode in the optical pick-up

6、block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc. 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

7、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 optical pick-up block. Therefore, when checking the laser diod

8、e emis- sion, observe from more than 30 cm away from the objective lens. 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. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT CAUTION Use of

9、 controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Laser component in this product is capable

10、 of emitting radiation exceeding the limit for Class 1. The following caution label is located inside the unit. HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF Insert a tapering driver into the aperture of he unit bottom, and turn in the direction of arrow (to OUT direction). DISC REMOVAL PROC

11、EDURE (at POWER OFF) 1.Remove the case. (Refer to page 7.) 2.Push the slide cam in the direction of the arrow A. 3.Draw out the loading panel in the direction of the arrow B by hand, and remove a disk. slide cam loading panel A ? B RadioFans.CN 收音机爱 好者资料库 4 CD-TEXT TEST DISC This unit is able to dis

12、play 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 used for checking the display. To check, perform the following procedure. Checking Method: 1. Turn ON the power, set the disc to the disc table with the “t

13、est disc” label facing up, and chuck the disc. 2. Press the button and play back the disc. 3. The following will be displayed on the fluorescent indicator tube. Display : 1KHZ 0DB 4. Rotating AMS knob, select the track. The text data of each track will be displayed. For details of the displayed cont

14、ents 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 Display In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character res

15、embling it. For details, 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) 11kHz/0dB/L ?(38h to 3Fh) A B C D E F G(40h to 47Fh) H I J K L MNO(48h to 4Fh) P QR S T U VW(50h to 57Fh) X Y Z _(58h to 5Fh

16、) 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 77Fh) x y z I (78h to 7Fh) i (A0h to A7h) 8859-1 C PR (A8h to AFh) 23 (B0h to B7h) 1 (B8h to BFh) (C0h to C7Fh) (C8h to CFh) D (D0h to D7Fh) Y(D8h to DFh) (E0h to E7Fh) (E8h to FFh) (F0h to F7Fh) y(F8h to FFFh) No.66 No.

17、67 to No.99 1 4 1 2 3 4 Display 6 SECTION 2 GENERAL LOCATION OF CONTROLS 143256 7890! ! ! ! ! 1 U (power) button 2 PLAY MODE button 3 REPEAT button 4 FADER button 5 TIME TEXT button 6 Remote sensor 7 0 button 8 ) button 9 EDIT/TIME FADER button 0 CHECK button ! CLEAR button ! Fluorescent indicator t

18、ube ! PHONES jack ! PHONE LEVEL knob ! FILTER knob ! PEAK SEARCH button ! AUTO SPACE button ! MUSIC SCAN button ! LANGUAGE button Disc tray OPEN/CLOSE button button P button p button AMS , PUSH ENTER knob 7 CASE Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMB

19、LY FRONT PANEL SECTION 2?two screws (case 3TP2) 2?two screws (case 3TP2) 3?case 1?two screws (BV/RING) 2?two screws (case 3TP2) 3?loading panel assy 2?two claws A 1?Push the slide cam in the direction of the arrow A. 4?connector (CN903) 5?connector (CN351) 6?flat wire (25 core) (CN302) 8?claw 7?five

20、 screws (BV3 8) 9?front panel section 8?claw 8 MECHANISM DECK (CDM36-14E) MAIN BOARD ? 3?lug 2?screw (BVTP3 8) 4?two screws (BVTP3 8) 4?two screws (BVTP3 8) 5?mechanism deck (CDM36-14E) 1?flat wire (23 core) (CN301) 1?flat wire (23 core) (CN301) 4two screws (BVTP 3 8) 5?main board 3?four screws (BV/

21、RING) 2?connector (CN951) 4?two screws (BVTP 3 8) 9 When the p button is pressed, the following will be displayed. (partial lighting 2) When the OPEN/CLOSE button is pressed, all will light up again. When the AMS knob is rotated, the following will be displayed. (partial lighting 3) Key check All bu

22、ttons have corresponding button numbers. When a button is pressed, the counter will count up and display the buttons num- ber. However, the counter will only count to “18”. It will not count for buttons already pressed once, but will display the buttons num- ber. SECTION 4 TEST MODE 4-1.AF ADJ MODE

23、The following checks can be performed in the AF ADJ mode, which is set by connecting the TP2 (AF ADJ : JW96) terminal on MAIN board to the Ground and turning on the power. FL tube check After all segments light up, when the button is pressed, the following will be displayed. (Partial lighting 1) (Pa

24、rtial lighting 3) (Partial lighting 2) (Partial lighting 1) “FILTER-STD/1/2/3” is displayed on the FL tube when the FILTER switch is pressed. Remote commander check “REMOCON PLAY” is displayed on the FL tube when the PLAY button on the remote commander is pressed. All go off when the other buttons a

25、 pressed. Audio check Initial setting of digital filter and release of mute. When the TP2 (AF ADJ) terminal on MAIN board is set to HIGH (VDD), emphasis turns on. When set to LOW (GND), it turns off. 24 6810 1214 161820 Display of counting Display of button number Rightward: Lefrward: ButtonButton N

26、umber or Display LANGUAGE0 MUSIC SCAN1 AUTO SPACE2 PEAK SEARCH3 PLAY MODE4 REPEAT5 FADER6 TIME/TEXT7 08 )9 EDIT/TIME FADE10 CHECK11 CLEAR12 P18 PUSH ENTER20 OPEN/CLOSE All lit PLAY Partial lighting 1 STOP pPartial lighting 2 AMS Partial lighting 3 Buttons and Corresponding Button Numbers 10 4-2.ADJ

27、MODE The following operations are performed in the ADJ mode, which is set by connecting the TP1 (ADJ : JW98) terminal to the Ground and turning on the power. During playback, there is no problem even if the GFS is continu- ously LOW. High speed search is prohibited during access. During playback, th

28、e gain of focus servo and spindle servo does not decrease. Servo related manual operations and measurement can be performed. (For details of operations, refer to Table of Key Operrations in ADJ Mode.) 4-3.CLV-S MODE The spindle servo for playback sets into the CLV-S mode when the TP2 (AFADJ) termina

29、l is connected to Ground after turning on the power. TABLE OF BUTTON OPERATIONS IN ADJ MODE The jitter value display mode can be set after the all-music remaining number mode using the TIME/TEXT button. The functions of the number buttons are shown in the following table. FUNCTIONS OF NUMBER BUTTONS

30、 (With the attached remote commander) MAIN BOARD Conductor Side ButtonFunction 1Focus bias up 2Focus bias aliasing (upper, middle, lower) display 3Focus bias (best point, jitter value) display 4Tracking servo, sled servo off 5Tracking gain up 6Focus bias down 7Focus bias readjustment 8Focus bias 00

31、point 9Tracking servo, sled servo on 10Tracking gain normal 11S-Curve mode (play mode only) 12Eccentric mode 13 14 Reserved for BD 15 16 17Tracking gain initialize 18Offset display (TE), EF, Bias 19Offset display (VC, FE, RF) 20Auto gain (FCS, TRK) CLR key(Error Rate, RFCK, GFS) selection IC930 JW09

32、6 TP2 (AFADJ) TP1 (ADJ) JW098 IC302 CN302 11 4-4.AGING MODE 1. How to Enter AGING Mode Aging method 1 (When using the aging mode remote controller (J-2501-123-A): 1) Pess the U button and turn ON the power. 2) Set the disc on the tray. 3) Press the AGINGSTART button of the aging remote control- ler.

33、 4) Aging starts and the message shown in Fig. 1 is displayed on the fluorescent display tube. 5) To end, press the U button. Aging method 2 (When no aging mode remote controller): 1) Turn on the power of the set, and insert any disc. 2) Press three buttons of MUSICSCAN, OPEN/CLOSE, and p simultaneo

34、usly, and the set goes in the AGING mode. 3) Performing the aging for a while, confirm that “ERROR” is not displayed on the fluorescent display tube. 2. How to Exit from AGING Mode Turn off the Power, and normal operation becomes ready. 3. Operation sequence in AGING Mode. Fig. 1 *: In case of a fai

35、lure A faulty operation mode No. such as “ERROR-3 is blinking. *: During aging, the keys on the set and the remote control A1 are not accepted. *: To quit the aging, turn of the power of the set. DisplayOperation 1AGING-0loading IN 2AGING-1Toc read 3AGING-2last access 4AGING-3last play 5AGING-4first

36、 access 6AGING-5first play 7AGING-6loading OUT Contents of AGING mode 12 SECTION 5 ELECTRICAL BLOCK CHECKING Note: 1. CD Block is basically designed to operate without adjustment. There- fore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an os

37、cilloscope with more than 10M impedance. 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 Connection: Procedure : 1. Connect oscilloscope to test point TP2 (FE) on BD board. 2. Connect between

38、test point TP3 (FEI) and TP (VC) by lead wire. 3. Turn ON the power. 4. Put disc (YEDS-18) in and turned Power switch on again and actuate the focus search. (actuate the focus search when disc table is moving in and out.) 5. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. A

39、nd confirm peak to peak level within 31 Vp-p. S-curve waveform 6. After check, remove the lead wire connected in step 2. Note : Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. Take sweep time as long as possible and light up the brightness to obtain be

40、st waveform. RF Level Check Connection: Procedure : 1. Connect oscilloscope to test point TP1 (RF) on BD board. 2. Turn ON the power. 3. Put disc (YEDS-18) in to play the number five track. 4. Confirm that oscilloscope waveform is clear and check RF sig- nal level is correct or not. Note: A clear RF

41、 signal waveform means that the shape “” can be clearly distinguished at the center of the waveform. RF signal waveform E-F Balance (1 Track Jump) Check (Without remote commander) Connection: Procedure : 1. Connect oscilloscpe to test point TP4 (TE) on BD board. 2. Turn ON the power. 3. Put disc (YE

42、DS-18) in to play the number five track. 4. Press the “P (Pause)” button. (Becomes the 1 track jump mode) 5. Check the level B of the oscilliscopes waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than 22% E-F Balance Check (With remote

43、 commander) Connection: Procedure : 1. Connect the test point TP1 (ADJ : JW98) on MAIN board to the ground with a lead wire on MAIN board. 2. Connect oscilloscpe to test point TP4 (TE) on BD board. 3. Turn ON the power to set the ADJ mode. 4. Put disc (YEDS-18) in to play the number five track. 5. P

44、ress the “4” button. (The tracking servo and the sledding servo are turned OFF.) A B symmetry within 3 1 Vp-p + BD board TP2 (FE) TP (VC) oscilloscope + BD board TP1 (RF) TP (VC) oscilloscope VOLT/DIV: 200 mV TIME/DIV: 500 ns level: 1.2 0.2 Vp-p 0 V Center of the waveform A (DC voltage) B symmetry l

45、evel: 1.3 0.6 Vp-p 1 track jump waveform + BD board TP4 (TE) TP (VC) oscilloscope (DC range) + BD board TP4 (TE) TP (VC) oscilloscope (DC range) 13 6. Check the level B of the oscilliscopes waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = le

46、ss than 22% 7. Press the “9” button. (The tracking servo and sledding servo are turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 6. 8. Disconnect the lead wire of TP1 (ADJ : JW98) connected in step 1. 0 V Center of the waveform A (DC voltage) B Traverse waveform level: 1.3 0.6 Vp-p Adjustment Location : BD BOARD Side A MAIN BOARD Conductor Side 0 V C (DC voltage) Traverse waveform Tracking servo Sledding servo ON Tracking s