SONY hcdsd1_11 维修电路图.pdf

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1、 1 MICROFILM HCD-SD1 SPECIFICATIONS SERVICE MANUAL COMPACT DISC RECEIVER Continued on next page AEP Model UK Model E Model HCD-SD1 is the amplifier, CD and tuner section in CMT-SD1. Model Name Using Similar MechanismHCD-MD313 Mechanism TypeCDM13B-5BD19 Base Unit TypeBU-5BD19 Optical Pick-up TypeKSS-

2、213B/K-N CD SECTION 收音机爱好者资料库 Ra d i o Fa n s .CN 2 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus

3、 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 circuit board (within 3 times). Be careful not to apply force on the conductor when

4、 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 PROD- UCT MARKING is located on the rear exterior. This caution label is located inside the unit. SA

5、FETY-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 SUPPLEMENTS PUBLISHED BY SONY.

6、PARTS No. 4-212-711-0 4-212-712-0 MODEL AEP, UK model SP, HK model Abbreviation HK: Hong Kong model SP: Singapore model Parts No. MODEL NO. HCD-SD1 MODEL IDENTIFICATION Specification Label 收音机爱好者资料库 Ra d i o Fa n s .CN 3 TABLE OF CONTENTS 1. SERVICING NOTE. 4 2. GENERAL. 7 3. DISASSEMBLY 3-1. Loadin

7、g Panel . 8 3-2. Glass ASSY. 8 3-3. Front Panel . 9 3-4. Main Board and Tuner Unit . 9 3-5. CD Mechanism Deck. 10 3-6. Back Panel . 10 3-7. Disc Table . 11 3-8. Optical Pick-up .11 4. SERVICE MODE. 12 5. TEST MODE. 13 6. ELECTRICAL ADJUSTMENTS.14 7. DIAGRAMS 7-1. Circuit Boards Location. 16 7-2. Blo

8、ck Diagrams BD Section.17 Main Section . 19 7-3. Schematic Diagram BD Section .23 7-4. Printed Wiring Board BD Section . 25 7-5. Schematic Diagram Main (1/2) Section . 27 7-6. Schematic Diagram Main (2/2) Section . 29 7-7. Printed Wiring Board Main Section . 31 7-8. Schematic Diagram Sub Trans Secti

9、on . 33 7-9. Printed Wiring Board Sub Trans Section . 34 7-10. Schematic Diagram Panel Section . 35 7-11. Printed Wiring Board Panel Section .37 7-12. Schematic Diagram AMP Section . 39 7-13. Printed Wiring Board AMP Section .41 7-14. Schematic Diagram Connector Section . 43 7-15. Printed Wiring Boa

10、rd Connector Section .45 7-16. Schematic Diagram REG Section . 47 7-17. Printed Wiring Board REG Section . 49 7-18. IC Block Diagrams .51 7-19. IC Pin Functions .54 8. EXPLODED VIEWS 8-1. Front Panel Section . 56 8-2. Chassis Section .57 8-3. Mechanism Deck Section (CDM13B-5BD19) .58 8-4. Base Unit

11、Section (BU-5BD19). 59 9. ELECTRICAL PARTS LIST. 60 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the huma

12、n 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 on this model is concentra

13、ted 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 SEARCH OPERATION CHECK Carry out the “S curve check” in “C

14、D section adjustment” and check that the S curve waveform is output two times. 收音机爱好者资料库 Ra d i o Fa n s .CN 4 SECTION 1 SERVICING NOTE OPENING THE DISC TRAY WHEN POWER IS OFF 1Using a thin screwdriver, rotate the internal cam in the arrow direction completely. 2Open the glass door, and pull out the

15、 loading panel. 1 2 Pull up the glass door, in the arrow direction. 4 Screw (PTP 2.6x6) 3 Bracket (shaft) (Bottom side) 1 When securing this part, position at the center to allow some play. Open and close the glass window several times, and check that the parts do not touch each other. ATTACHING THE

16、 GLASS ASSEMBLY Attach according to steps 1 to 4. 5 POSITIONS FOR SERVICING THE CONNECTOR BOARD, SUB-TRANS BOARD, CHEMI-CON BOARD, AND AMP BOARD 1 Remove the four screws securing the upper cover, and remove the upper cover. 2 Remove the loading panel. (Refer to SECTION 3 DISASSEM- BLY.) 3 Remove the

17、 four screws A securing the MAIN board, five screws B securing the rear panel, two flat cables (CN701, CN702), and open the MAIN board as shown in the figure. 4 Remove the two screws C securing the heat sink, and remove the AMP board and CHEMI-CON board. 5 Remove the two screws D securing the SUB-TR

18、ANS board and four screws E securing the CONNECTOR board, and re- move the SUB-TRANS board and CONNECTOR board. 6 Return the MAIN board to its original position. 7 Insulate these boards and the MAIN board with paper, etc., and assemble the CONNECTOR board, SUB-TRANS board, CHEMI-CON board, and AMP b

19、oard on these boards. Should be insulatable with paper, etc. A A C D B B E Heat sink SUB-TRANS board AMP board CHEMI-CON board CONNECTOR board MAIN board Flat type wire (CN701) Flat type wire (CN702) 6 POSITION FOR SERVICING THE CD MECHANISM DECK 1Remove the four screws securing the upper cover, and

20、 remove the upper cover. 2Remove the loading panel. (Refer to SECTION 3 DISASSEM- BLY.) 3Remove the four screws A securing the MAIN board, five screws B of the rear panel, and flat cables (CN701, CN702), and re- move the MAIN board. 4Remove the two screws D securing the SUB-TRANS board, and remove t

21、he SUB-TRANS board. 5Remove the two screws F securing the REG board. 6Remove the three screws G securing the CDM cover, and re- move the CDM cover. 7Remove the two screws H securing the CDM, move the CDM backwards by about 5 mm horizontally, and then lift upwards. 8Rotate the CDM in the counterclock

22、wise direction by about 30 to remove. 9Return the MAIN and SUB-TRANS boards to their original positions. G H CDM cover A A B B D F SUB-TRANS board MAIN board Flat type wire (CN702) Flat type wire (CN701) 7 Location of Parts and Controls 11/u (Power) button 2CD disc tray 3 button 4VOLUME dial 5/)/TUN

23、ING + button SECTION 2 GENERAL Front Panel 15 12 13 11 14 78910 23 56 1 4 6/0/TUNING button 7 button 8 fl button 9TUNER/BAND button 10 FUNCTION button 11 DISPLAY button 12 PHONES jack 13 t indicator 14 u indicator 15 Display window This section is extracted from instruction manual. 8 SECTION 3 DISAS

24、SEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-1. LOADING PANEL 3-2. GLASS ASSY 1Turn ON the power, and press the EJECT button to open the tray. 2Remove the loading panel in the arrow direction. 3Press the EJECT button to close the tray. If the power cannot be turned O

25、N, refer to “Opening the Disc Tray When the Power is OFF” of “Service Note”, and open the tray. Power button Loading panel Eject button 1 Screw (PTP2.6x6) 2 Bracket (shaft) 3 4 4 (Bottom side) ? 9 3-3. FRONT PANEL 3-4. MAIN BOARD AND TUNER UNIT 1 Three screws (BVTP3x8) 2 Three claws 4 Flat type wire

26、 (11core) (CN702) 5 Flat type wire (13core) (CN701) 6 Front panel 3 1 Four screws (BVTP3x8) 2 Six screws (BVTP3x8) 4 Flat type wire (19core) (CN301) 6 Flat type wire (19core) (CN705) 5 Connector (CN351) 8 Connector (CN706) 7 MAIN board and Tuner unit 3 10 3-6. BACK PANEL 3-5. CD MECHANISM DECK 1 Two

27、 screws (BVTP3x8) 8 Two screws (BVTP3x8) 5 REG board 2 Connector (CN945) 4 Connector (CN994) 3 Connector (CN942) 9 CD mechanism deck 6 Three screws (BVTP3x8) 7 Dust cover 1 Six screws (BVTP3X8) 2 Four screws (BVTT3X8) 3 Connector (CN992) 5 Connector (CN901) 7 Back panel 6 Connector (CN551) 8 PC boar

28、d block 4 Connector (CN991) 11 3-7. DISC TABLE 3-8. OPTICAL PICK-UP 1 Screw (BV3x8) 2 Screw (BV3x8) 3 Holder (MG) assembly 4 Pull out the disc table. C B A 3 Flat type wire (16 core) (CNU101) 1 Move the claw in the arrow A direction. 2 Remove the sled shaft in the arrow direction B. 4 Remove the opt

29、ical pickup in the arrow direction C. BD board 12 SECTION 4 SERVICE MODE Key Check Mode for Complete Lighting of LED/Fluorescent Display Tube Perform this mode to analyze and check malfunctions such as display defects and when buttons do not work. Procedure: 1. Press the 1/u button to turn on the po

30、wer. 2. Press the DISPLAY button and button together. 3. All LEDs and the fluorescent display tube will light up completely. 4. Pressing the FUNCTION button here will light the fluorescent display tube in the following order; Partial lighting 1 n Partial lighting 2 n Complete lighting n Partial ligh

31、ting 1 Turning the VOLUME dial will switch the lighting order of the LED. To end without shifting to the key check mode, press the 1/u button to end. 5. Pressing the p button sets the key check mode. 6. During the key check mode, “KEY=0 JOG=0” will be displayed on the fluorescent display tube. Press

32、ing a button will increase the value of “KEY=”. However the value will not increase for buttons which have already been pressed once. Rotating the VOLUME knob in the clockwise direction increases the value of “JOG=” in the order of 1, 2, 3. and rotating in the counterclockwise direction decreases in

33、 order of 10, 9, and 8. 7. To end the check mode, press all buttons (8 buttons). “KEY-OK” will be displayed. Then press any button, and disconnect the power cord from the outlet. Checking the Sub-Clock Perform this mode to check clock operations. Procedure: 1. Connect an oscilloscope and frequency c

34、ounter between the pin (TP791) and ground of IC701 of the MAIN board. 2. Press the and 1/u buttons together to display “91P = 32.768k” on the fluorescent display tube. 3. Check that the signal on the oscilloscope becomes a 32 kHz rectangular waveform and the reading of the frequency counter becomes

35、32.768 kHz. 4. Press the 1/u button to end. Sled Servo Mode In this mode, the CD sled motor can be operated freely. Execute it when cleaning the pick-up. Round holes can be seen on the topmost board when the case is opened. Move the pick-up and clean off the dirt in these round holes using a cotton

36、swab. Procedure: 1. Press the DISPLAY and buttons with the power of the unit OFF. 2. When the sled servo is set, “MANUAL” is displayed on the fluorescent display tube. 3. Pressing the +/TUNING/) button when the CD is in the stop state moves the pick-up to the outer track. Pressing the =/ TUNING/0 bu

37、tton moves it to the inner track. 4. To end this mode, perform the following steps. 1) Move the If not, the disc cannot be removed. 2) Press the DISPLAY and buttons together. Note: When ending this mode, be sure to move the pick-up to the innermost circumference. If not, the disc cannot be removed.

38、Do not move the sled motor more than required as this will damage the gears. Round holes for cleaning Initializing (Forced Reset) Perform this mode when resetting the unit or when returning the unit to the customer. The preset frequency of the tuner, etc. will be the settings at shipment. Procedure:

39、 While pressing the 1/u button, insert the power cord into the outlet. 13 SECTION 5 TEST MODE AGING MODE This unit is equipped with an aging mode. Use this mode for analyzing defects and for checks after completing repairs. After repairs, perform aging 100 times and check that the unit is normal. Th

40、e aging mode is executed in the following sequence. The aging mode will continue as long as the unit is normal. If the unit becomes abnormal, it will display the state and number of cycles, and operations will stop. (Refer to Table 1.) Sequence of Aging Mode: CD TOC OK? NO YES OK? NO OK? NO NO YES O

41、K? OK? NO OK? NO YES NO YES YES YES OK YES NG Start Sets the CD function and reads the CD TOC. Message 1 Message 2 Message 3 Message 4 Message 5 Message 6 Message 4 Pauses first song. Last song search paused state Starts last song playback Is CD playing? End playback? Opens the CD tray Closes the CD

42、 tray Power OFF Display of number of aging cycles Power ON Optical defect, spindle defect (including motor), cannot read Q data, disc defect (scratches, etc.), bad focus, bad GFS, etc. Disc defect (scratches, etc.), cannot read Q data, etc. Optical defect, sled, tracking defect (including motor), ca

43、nnot read Q data, disc defect (scratches, etc.). Optical defect, cannot read Q data, disc defect (scratches, etc.), etc. LOAD OUT SW defect LOAD IN SW defect NoError MessagesDetails of Error 1 2 3 4 5 6 CD No Disc NG CD Pause NG CD Search NG CD Play NG CD Open NG CD Close NG Cannot read CD TOC. Cannot set CD pause in CD synchro mode. Cannot search last track on CD. Cannot play last track on CD. Cannot open CD tray. Cannot close CD tray. Main Causes Procedure: 1. Press the DISPLAY button and =/TUNING/0 but