Sony Cdx-M620 Sm 电路图.pdf

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1、1 Ver 1.0 2001. 03 Model Name Using Similar MechanismCDX-M700R/M750 CD Drive Mechanism TypeMG-383Z-121/K Optical Pick-up NameKSS-720A SERVICE MANUALUS Model CDX-M620/M670 AEP Model UK Model E Model CDX-M670 CDX-M620/M670 The tuner and CD sections have no adjustments. AUDIO POWER SPECIFICATIONS (US M

2、ODEL) POWER OUTPUT AND TOTAL HARMONIC DISTORTION 23.2 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 5% total harmonic distortion. CD player section Signal-to-noise ratio90 dB Frequency response10 20,000 Hz Wow and flutterBelo

3、w measurable limit Laser Diode Properties (US model) MaterialGaAlAs Wavelength780 nm Emission DurationContinuous Laser output powerLess than 44.6 W* * This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block. Tuner section FM Tuning range

4、87.5 107.9 MHz (US model) 87.5 108.0 MHz (AEP, UK, E model) Antenna terminalExternal antenna connector Intermediate frequency10.7 MHz/450 kHz Usable sensitivity8 dBf Selectivity75 dB at 400 kHz Signal-to-noise ratio66 dB (stereo), 72 dB (mono) Harmonic distortion at 1 kHz 0.6% (stereo), 0.3% (mono)

5、Separation35 dB at 1 kHz Frequency response30 15,000 Hz AM (US model) Tuning range530 1,710 kHz Antenna terminalExternal antenna connector Intermediate frequency10.7 MHz/450 kHz Sensitivity30 V SPECIFICATIONS MW/LW (AEP, UK, E model) Tuning rangeMW: 531 1,602 kHz LW: 153 279 kHz Aerial terminalExter

6、nal aerial connector Intermediate frequency10.7 MHz/450 kHz SensitivityMW: 30 V LW: 40 V Power amplifier section OutputsSpeaker outputs (sure seal connectors) Speaker impedance4 8 ohms Maximum power output 52 W 4 (at 4 ohms) General OutputsAudio outputs (front/rear) Subwoofer output (mono) Power ant

7、enna relay control lead (US model) Power aerial relay control lead (AEP, UK, E model) Power amplifier control lead FM/AM COMPACT DISC PLAYER CDX-M620/M670 FM/MW/LW COMPACT DISC PLAYER CDX-M670 Continued on next page Sony Corporation Audio Entertainment Group General Engineering Dept. 9-873-505-11 20

8、01C0400-1 2001. 3 RadioFans.CN 收音机爱 好者资料库 2 optical pick-up block semi-fixed resistor SERVICE NOTES 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 WI

9、TH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. InputsTelephone ATT control lead Illumination control lead BUS control input connector BUS audio input connector Antenna input connector (US model) Aerial input connector (AEP, UK, E model) AUX IN co

10、nnector (US model) Tone controlsBass 8 dB at 100 Hz Treble 8 dB at 10 Hz Loudness+8 dB at 100 Hz +2 dB at 10 Hz Power requirements12 V DC car battery (negative earth) DimensionsApprox. 178 50 182 mm (w/h/d) Mounting dimensionsApprox. 182 53 160 mm (w/h/d) MassApprox. 1.5 kg Supplied accessoriesParts

11、 for installation and connections (1 set) Front panel case (1) Card remote commander RM-X110 (US model) RM-X111 (AEP, UK, E model) Note This unit cannot be connected to a digital preamplifier or an equalizer. Design and specifications are subject to change without notice. NOTES ON HANDLING THE OPTIC

12、AL 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

13、 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 concentrated so as to be focused on the disc reflective surface by the objective lens in t

14、he optical pick- up block. Therefore, when checking the laser diode emission, ob- serve 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. CAUTI

15、ON Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. If the optical pick-up block is defective, please replace the whole optical pick-up block. Never turn the semi-fixed resistor located at the side of optical pi

16、ck-up block. US model: AEP/UK model: This label is located on the bottom of the chassis. This label is located on the drive units internal chassis. When replacing the chassis (T) of mechanism deck which have the “CAUTION LABEL” attached, please be sure to put a new CAUTION LABEL (3-223-913-11) to th

17、e chassis (T). CDX-M620/M670 RadioFans.CN 收音机爱 好者资料库 3 stand TABLE OF CONTENTS 1. GENERAL. 4 2. DISASSEMBLY 2-1. Front Panel Assy (Normal) . 16 2-2. Front Panel Assy (Inoperative) . 16 2-3. CD Mechanism Block, Flexible Board . 16 2-4. Sub Panel (CD) Sub Assy . 17 2-5. Motor Block Assy, Cam (R) Assy

18、. 17 2-6. Main Board . 18 2-7. Heat Sink. 18 2-8. Chassis (T) Sub Assy . 19 2-9. Lever Section . 19 2-10. Servo Board. 20 2-11. Shaft Roller Assy. 20 2-12. Floating Block Assy . 21 2-13. Optical Pick-up Block . 21 3. PHASE ALIGNMENT 3-1. Arm (A-L) Assy, Arm (B-L) Assy. 22 3-2. Cam (L) . 22 3-3. Moto

19、r Block . 23 3-4. Alignment between Arm (A-L) Assy and Arm (B-L) Assy . 23 3-5. Arm (A-R) Assy, Arm (B-R) Assy . 24 3-6. Cam (R). 24 4. DIAGRAMS 4-1. IC Pin Descriptions . 25 4-2. Circuit Boards Location . 33 4-3. Block Diagram CD Section. 34 4-4. Block Diagram Tuner Section. 35 4-5. Block Diagram D

20、isplay Section. 36 4-6. Printed Wiring Boards CD Mechanism Section. 38 4-7. Schematic Diagram CD Mechanism Section (1/2) . 40 4-8. Schematic Diagram CD Mechanism Section (2/2) . 41 4-9. Printed Wiring Boards Main Section . 42 4-10. Schematic Diagram Main Section (1/4). 44 4-11. Schematic Diagram Mai

21、n Section (2/4) . 45 4-12. Schematic Diagram Main Section (3/4). 46 4-13. Schematic Diagram Main Section (4/4). 47 4-14. Printed Wiring Board Sub (CD) Section. 48 4-15. Schematic Diagram Sub (CD) Section. 49 4-16. Printed Wiring Board Key Section. 50 4-17. Schematic Diagram Key Section . 51 4-18. Pr

22、inted Wiring Board Display Section . 52 4-19. Schematic Diagram Display Section. 53 5. EXPLODED VIEWS 5-1. Chassis Section . 56 5-2. Cam Section . 57 5-3. Main Board Section . 58 5-4. Front Panel (Key) Assy Section . 59 5-5. Front Panel (Dspl) Assy Section . 60 5-6. CD Mechanism Section (1). 61 5-7.

23、 CD Mechanism Section (2). 62 5-8. CD Mechanism Section (3). 63 6. ELECTRICAL PARTS LIST. 64 NOTE FOR THE OPENING OF THE FRONT PANEL In this set, the front panel is lowered to below the bottom face when it is opened. When servicing the set, place it on a stand having a height of about 2 cm. TEST MOD

24、E 1. Turn on the power. 2. Push “4” on the card remote control for 2 sec. 3. Push “5” on the control for 2 sec. 4. Push “1” on the control for 2 sec. (The TEST MODE is entered.) 5. Push the “OPEN/CLOSE” switch on the control for 2 sec. 6. The front panel detouch position is set. (No display appears

25、at this time.) 7. Turn off the power and disassemble the set. CDX-M620/M670 RadioFans.CN 收音机爱 好者资料库 4 CDX-M620/M670 SECTION 1 GENERAL This section is extracted from instruction manual. US MODEL AEP, UK, E MODEL 5 CDX-M620/M670 US, AEP, UK, E MODEL 6 CDX-M620/M670 US MODEL 7 CDX-M620/M670 AEP, UK, E

26、MODEL 8 CDX-M620/M670 9 CDX-M620/M670 10 CDX-M620/M670 US, AEP, UK, E MODEL 11 CDX-M620/M670 12 CDX-M620/M670 US MODEL Connection 13 CDX-M620/M670 14 CDX-M620/M670 AEP, UK, E MODEL Connection 1515 CDX-M620/M670 1616 CDX-M620/M670 3 screw (panel) flexible board 5 1 6 front panel (key) assy (Take care

27、 not to pull the flexible board excessively) 4 screw (panel) 2 front panel (DSPL) assy 4 screw (panel) 3 front panel (DSPL) assy 2 1 Turn on the power and open the front panel. stand 5 screw (panel) 6 front panel (key) assy (Take care not to pull the flexible board excessively) flexible board SECTIO

28、N 2 DISASSEMBLY Note : This set can be disassemble according to the following sequence. Note : Follow the disassembly procedure in the numerical order given. 2-1. FRONT PANEL ASSY (NORMAL) 2-2. FRONT PANEL ASSY (INOPERATIVE) 2-3. CD MECHANISM BLOCK, FRONT PANEL (KEY) ASSY Front Panel Assy (Normal) F

29、ront Panel Assy (Inoperative) CD Mechanism Block, Front Panel (KEY) Assy Sub Panel (CD) Sub AssyMotor Block Assy, Cam (R) Assy Shaft Roller AssyFloating Block Assy Optical Pick-up Block Main BoardHeat Sink Chassis (T) Sub AssyLever Section Servo Board 2 PTT 2.6x4 4 CN401 qa front panel (key) assy 1

30、PTT 2.6x6 3 PTT 2.6x4 5 CD mechanism block 7 bracket (CD) 6 PTT 2.6x6 8 tension spring (flexible) flexible board 9 slider (flexible) slider (flexible) 0 cover (flexible) qa CN604 Note: When installing the flexible board, make the board slack as illustrated. 17 CDX-M620/M670 1 PTT 2.6x6 4 PTT 2.6x6 5

31、 motor block assy 2 cam (R) assy 3 CN602 A Note: Install the cam (R) assy with the cam fully rotated in the direction of the arrow A. 3 PTT 2.6x6 6 sub panel (CD) sub assy 2 PTT 2.6 x6 5 claw 1 CN603 4 claw 2-4. SUB PANEL (CD) SUB ASSY 2-5. MOTOR BLOCK ASSY, CAM (R) ASSY Note : Install the motor blo

32、ck assy and cam (R) assy in this roder. For phase alignment between cams (L) and (R), see page 22 and 24. 18 CDX-M620/M670 5 heat sink 1 PTT 2.6x6 4 PTT 2.6x6 3 PTT 2.6x10 2 PTT 2.6x6 4 PTT 2.6x6 ground point 3 PTT 2.6x6 ground point 1 PTT 2.6x6 5 MAIN board 2 PTT 2.6x6 2-6. MAIN BOARD 2-7. HEAT SIN

33、K 19 CDX-M620/M670 4 claws 2 DISC IN SW board 7 lever (L) 3 tension spring (LR) 6 lever (R) 5 guide (disc) 1 special screw 4 chassis (T) sub assy 3 P 2x3 2 P 2x3 1 Unsolder the lead wires. black red white 2-9. LEVER SECTION 2-8. CHASSIS (T) SUB ASSY 20 CDX-M620/M670 6 special screws 7 special screws

34、 1 CN3 3 Removal the solders. 4 P 2x3 5 loading motor assy 8 SERVO board 2 CN2 2-10. SERVO BOARD 2-11. SHAFT ROLLER ASSY Fig. 1 1 tension spring (RA) 2 arm (roller) 3 retaing ring (RA) 4 shaft retainer (roller) 5 shaft roller assy retaing ring (RA) arm arm washer washershaft retainer (roller) shaft

35、retainer (roller) 21 CDX-M620/M670 2-12. FLOATING BLOCK ASSY 2-13. OPTICAL PICK-UP BLOCK 1 tension spring (KF1) 7 compression spring (FL) 6 floating block assy 8 compression spring (FL) 4 Fit lever (D) in the direction of the arrow. 2 damper (T) 3 damper (T) 5 Turn loading ring in the direction of t

36、he arrow. 1 P 2x35 P 2x3 2 sled motor assy 3 optical pick-up block 4 PICK-UP flexible board 6 spring (feed), plate 7 shaft (feed) assy 22 CDX-M620/M670 cam (L) arm (A-L) assy arm (B-L) assy C A B 3 stop ring 1.5, type-E hole(large) line SECTION 3 PHASE ALIGNMENT 3-1. ARM (A-L) ASSY, ARM (B-L) ASSY 3

37、-2. CAM (L) 1 Move the arm (B-L) assy in the direction of the arrow A and the arm (A-L) assy in the direction of the arrow B fully (full open state). 2 Align the hole (large) on the cam (L) with part C and install the cam. 4 Turn the cam (L) clockwise and counterclockwise to verify that both the arm

38、s are operated. 4 stop ring 1.5, type-E 2 stop ring 1.5, type-E 1 arm (B-L) assy 3 arm (A-L) assy bracket (L) assy 23 CDX-M620/M670 3-3. MOTOR BLOCK 3-4. ALIGNMENT BETWEEN ARM (A-L) ASSY AND ARM (B-L) ASSY 1 Turn the cam (L) and position the cam so that part A does not touch the SWITCH board SW900.

39、1 Input 9V DC to the motor terminal until the cam (L) stops rotating. Take care to avoid overload of the motor. 2 Verify that the arm (A-L) assy and arm (B-L) assy are positioned as shown below (full open). 3 PTT 2.6x6 4 PTT 2.6x6 5 PTT 2.6x6 2 motor block SWITCH board SW1001 cam (L) SW1002 A motor

40、GND arm (B-L) assy arm (A-L) assy DC 9V +B 24 CDX-M620/M670 3-6. CAM (R) 3-5. ARM (A-R) ASSY, ARM (B-R) ASSY 1 Move the arm (B-R) assy in the direction of the arrow A and the arm (A-R) assy in the direction of the arrow B fully (full open state). 2 Align the hole (large) on the cam (R) with part C a

41、nd install the cam. 4 Turn the cam (R) clockwise and counterclockwise to verify that both the arms are operated. bracket (R) assy 3 arm (A-R) assy 2 stop ring 1.5, type-E 4 stop ring 1.5, type-E 1 arm (B-R) assy 3 stop ring 1.5, type-E 5 damper, oil 6 screw (P 2x4) cam (R) B A C arm (B-R) assy line

42、arm (A-R) assy hole(large) 25 CDX-M620/M670 4-1. IC PIN DESCRIPTIONS IC501 CXD2598Q (DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD) Pin No.Pin NameI/OPin Description 1DVDDDigital power supply pin 2DVSSDigital ground 3SOUTOServo brock serial data output (Not used.) 4SOCKOServo brock serial data read clock output (Not used.) 5XOLTOServo brock serial data latch output (Not used.) 6SQSOOSub Q 80 bit, PCM peak and level data output. CD TEXT data output 7SQ