Aiwa-CDC-X937-Service-Manual 电路图 维修手册.pdf

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1、1 Ver 1.1 2004. 04 Model Name Using Similar MechanismNEW CD Drive Mechanism TypeMG-930B-185 Optical Pick-up NameOPTIMA-752B SERVICE MANUALUS Model Canadian Model CDC-X937 AEP Model UK Model CDC-R937 CDC-R937/X937 RADIO SECTION (FM) Frequency Range: 87.5 MHz 108 MHz Intermediate frequency: 10.7 MHz (

2、CDC-R937) Usable Sensitivity: 12.7 dBf 50 dB Quieting Sensitivity: 17.2 dBf IF Rejection: 100 dB Frequency Response: 30 Hz 15,000 Hz S/N Ratio: 67 dB (CDC-R937) 70 dB (CDC-X937) Stereo Separation: 35 dB at 1 kHz Alternate Channel Selectivity: 98 dB Capture Ratio: 3 dB (AM) (CDC-X937) Frequency Range

3、: 530 kHz 1,710 kHz Usable Sensitivity: 30 V (30 dB) (MW) (CDC-R937) Frequency Range: 531 kHz 1,602 kHz Intermediate frequency: 10.71 MHz/450 kHz Usable Sensitivity: 30 V (30 dB) (LW) (CDC-R937) Frequency Range: 144 kHz 288 kHz (1 kHz/9 kHz step) Intermediate frequency: 10.71 MHz/450 kHz Usable Sens

4、itivity: 30 V (30 dB) SPECIFICATIONS CD SECTION Frequency Response: 17 Hz 20 kHz +0/3 dB Dynamic Range: More than 92 dB Channel Separation: More than 60 dB S/N Ratio: More than 90 dB Wow/Flutter: Unmeasurable AUDIO SECTION Max. Power Output: 45 W 4 channels AUX IN Input Input sensitivity (load imped

5、ance) AUX IN: 300 mV (10 k) The CD section have no adjustment. Sony Corporation e Vehicle Company Published by Sony Engineering Corporation 9-877-344-02 2004D04-1 2004. 04 Continued on next page Photo: CDC-R937 FM/AM COMPACT DISC PLAYER CDC-X937 FM/MW/LW COMPACT DISC PLAYER CDC-R937 RadioFans.CN 收音机

6、爱 好者资料库 2 CDC-R937/X937 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 WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE

7、MENTS PUBLISHED BY SONY. GENERAL Power-Supply Voltage: 14.4 V (11 to 16 V allowable), DC, negative ground Load Impedance: 4 Tone Control: Bass 10 dB at 100 Hz, Treble 10 dB at 10 kHz Preamp Output Voltage (load impedance): 2.2 V (10 k) Installed size: 182 (W) 53 (H) 155 (D) mm (7 1/4 (W) 2 1/8 (H) 6

8、 1/8 (D) inches) Supplied Accessory: Carrying case (1) CARD REMOTE CONTROL Dimensions: Approx. 33 (W) 85 (H) 7.5 (D) mm (1 5/16 (W) 3 3/8 (H) 5/16 (D) inches) Weight: Approx. 20 g (0.7 oz.) (including battery) Specifications and external appearance are subject to change without notice due to product

9、 improvement. SERVICE NOTES 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 charged electrostatic load, etc. on clothing and the human body. During repair, pa

10、y 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 EMISSION CHECK The laser beam on this model is concentrated so as to be focused on

11、 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. Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side

12、of a tantalum capacitor may be dam- aged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. This compact disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is lo

13、cated on the exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CDC-X937: CDC-R937: ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SC

14、HMATIQUES ET LA LISTE DES PICES 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 3 TABLE OF CONTENTS 1. GENERAL Connections (CDC-X937) .4 Conne

15、ctions (CDC-R937) .5 2. DISASSEMBLY 2-1. Base (Around) . 8 2-2. CD Mechanism Block . 8 2-3. Main Board Section . 9 2-4. Main Board . 9 2-5. Heat Sink (CT) . 10 2-6. Motor (SVX) Assy . 10 2-7. Sub Board. 11 2-8. Servo Board. 11 2-9. Floating Block Assy . 12 2-10. Lever Assy (CD Up Holder CNF). 12 2-1

16、1. Lever (CD Roller) Sub Assy . 13 2-12. Lever Assy (CD Holder) . 13 2-13. Motor (Sled) Sub Assy . 14 2-14. Pick-up Sub Assy . 14 3. ELECTRICAL ADJUSTMENT. 15 4. DIAGRAMS 4-1. IC Pin Descriptions . 16 4-2. Circuit Boards Location . 19 4-3. Block Diagram CD Section. 20 4-4. Block Diagram Main Section

17、. 21 4-5. Block Diagram Front Section. 22 4-6. Schematic Diagram CD Mechanism Section. 23 4-7. Printed Wiring Boards CD Mechanism Section. 24 4-8. Printed Wiring Board Main Section . 26 4-9. Schematic Diagram Main Section (1/2). 28 4-10. Schematic Diagram Main Section (2/2). 29 4-11. Printed Wiring

18、Boards Key Section . 30 4-12. Schematic Diagram Key Section. 31 4-13. Printed Wiring Boards Front Section . 32 4-14. Schematic Diagrams Front Section. 33 4-15. IC Block Diagrams. 34 5. EXPLODED VIEWS 5-1. Chassis Section . 36 5-2. Panel Section . 37 5-3. Front Section . 38 5-4. CD Mechanism Section

19、(1). 39 5-5. CD Mechanism Section (2). 40 6. ELECTRICAL PARTS LIST. 41 CDC-R937/X937 RadioFans.CN 收音机爱 好者资料库 4 CDC-R937/X937 SECTION 1 GENERAL This section is extracted from instruction manual. CONNECTIONS (CDC-X937) 5 CDC-R937/X937 CONNECTIONS (CDC-R937) 6 CDC-R937/X937 7 CDC-R937/X937 SECTION 2 DI

20、SASSEMBLY Note : This set can be disassemble according to the following sequence. 2-1.BASE (AROUND) (Page 8) 2-2.CD MECHANISM BLOCK (Page 8) 2-7.SUB BOARD (Page 11) 2-8.SERVO BOARD (Page 11) SET 2-14. PICK-UP SUB ASSY (Page 14) 2-4.MAIN BOARD (Page 9) 2-5.HEAT SINK (CT) (Page 10) 2-6.MOTOR (SVX) ASS

21、Y (Page 10) 2-3.MAIN BOARD SECTION (Page 9) 2-9.FLOATING BLOCK ASSY (Page 12) 2-10. LEVER ASSY (CD UP HOLDER CNF) (Page 12) 2-11. LEVER (CD ROLLER) SUB SSY (Page 13) 2-12. LEVER ASSY (CD HOLDER) (Page 13) 2-13. MOTOR (SLED) SUB ASSY (Page 14) 8 CDC-R937/X937 2-2. CD MECHANISM BLOCK Note : Follow the

22、 disassembly procedure in the numerical order given. 2-1. BASE (AROUND) 3 base (around) 2 screw (TH 2.6x4) 1 screw (TH 2.6x4) 6 CON771 qa CD mechanism block 8 holder (CD mecha) 5 9 two screws (TH 2.6x4) 0 bracket (CD) 3screw (TH 2.6x4) 4screw (TH 2.6x4) 2screw (+PTP 2.6x4) 1screw (+PTP 2.6x4) 7two s

23、crews (+PTP 2.6x4) 9 CDC-R937/X937 2-4. MAIN BOARD 2-3. MAIN BOARD SECTION 2 cover 3 sheet (PWB) qa front section qs MAIN board section 0 two ground point screws (+PTT 2.6x6) 7 CON721 5 CON701 6 CON702 4 Removal the solder. brown black 8two screws (M 2.6x3) 9two screws (M 2.6x3) 1screw (+PTP 2.6x4)

24、9 MAIN board 7 L chassis 8 R chassis 1 Removal the solder. 2 Removal the solder. 3 Removal the solder. 4screw (+PTT 2.6x6) 5screw (+PTT 2.6x6) 6screw (+PTT 2.6x5) 10 CDC-R937/X937 2-5. HEAT SINK (CT) 4 heat sink (CT) 1screw (+BTT 2.6x8) 3screw (+PTT 2.6x8) 2two screws (+P 3x12) 2-6. MOTOR (SVX) ASSY

25、 brown black 3 motor (SVX) assy 6 SENSOR board 4 Removal the solders. 1screw (+PTT 2x3) 2screw (+PTT 2x3) 5screw (+PTT 2x3) 11 CDC-R937/X937 2-8. SERVO BOARD 4 SERVO board 5 PIC2 FLEXIBLE board 1 Removal the solders. white gray red black black red yellow green 2screw (+PTT 2x3) 3two screws (M 1.7x5)

26、 2-7. SUB BOARD 3 SUB board 1 Removal the solders. black brown blue 2screw (+P 1.4x2) 12 CDC-R937/X937 2-10. LEVER ASSY (CD UP HOLDER CNF) 3 special screw 4 tension spring 5 lever assy (CD up holder CNF) 2 leaf spring (roller) 1screw (+P 1.4x2) 2-9. FLOATING BLOCK ASSY 1 tension spring 2 tension spr

27、ing 3 tension spring qd floating block aasy 4 tension spring 5 tension spring 6 claw 7 claw 8 claw qa oil damper qs oil damper 9 0 13 CDC-R937/X937 2-12. LEVER ASSY (CD HOLDER) 2 special screw 1 torsion spring 4 lever assy (CD holder) 3 2-11. LEVER (CD ROLLER) SUB ASSY 3 lever (CD roller) sub assy 1

28、 2 14 CDC-R937/X937 2-14. PICK-UP SUB ASSY 2 leaf spring 3 pick-up sub assy 1two screws (+B 1.4x5) 2-13. MOTOR (SLED) SUB ASSY 2 motor (sled) sub assy 1screw (+P 1.7x2) 15 CDC-R937/X937 RDS Adjustment (CDC-R937 only) Setting:98 MHz 31 dBV (EMF) 1 kHz (Modulation Frequency) 45 kHz DEV Check point: S.

29、METER test point Adjustment location: SFR101 Specification: 2.00.1 V Procedure: Set to FM98.0 MHz and adjust SFR101 so that the test point is 2.00.2 V. Adjustment Location: SECTION 3 ELECTRICAL ADJUSTMENT TU101 MAIN BOARD (CONDUCTOR SIDE) IC901 IC151 TP1 S.METER SFR101 RDS Adjustment IC501 16 CDC-R9

30、37/X937 4-1. IC PIN DESCRIPTIONS IC241 TC94A09F-303 (DIGITAL SIGNAL SERVO PROCESSOR) (SERVO BOARD) Pin No.Pin NameI/OPin Description 1 9S1 9 (OT5 13)OLCD segment signal output/Output port Not used. (Open) 10S10 (OT14/ZDET)OLCD segment signal output/Output port/CD signal Not used. (Open) 11S11 (OT15/

31、CLCK)OLCD segment signal output/Output port/CD signal Not used. (Open) 12S12 (OT16/DATA)OLCD segment signal output/Output port/CD signal Not used. (Open) 13S13 (OT17/SFSY)OLCD segment signal output/Output port/CD signal Not used. (Open) 14S14 (DT18/LRCK)OLCD segment signal output/Output port/CD sign

32、al Not used. (Open) 15P8-0 (S15/BCK)I/OI/O port/LCD segment signal output/CD signal Not used. (Open) 16P8-1 (S16/AOUT)I/OI/O port/LCD segment signal output/CD signal Not used. (Open) 17P8-2 (S17/MBOV)I/OI/O port/LCD segment signal output/CD signal Not used. (Open) 18P8-3 (S18/IPF)I/OI/O port/LCD seg

33、ment signal output/CD signal Not used. (Open) 19MVDD1Power supply pin (+5 V) 20MVSSGround pin 21LMT SWILimit switch signal input 22P1-1 (K1)IKey signal input 23P1-2 (K2)IKey signal input 24SW3IKey signal input 25SRQICDS SRQ signal input 26LM CONTOLoading motor speed control signal output 27P3-2 (ADI

34、N2)I/OI/O port/AD analog voltage signal input Not used. (Open) 28P3-3 (ADIN3)OMute signal output 29P4-0 (BUZR/AD4)I/OI/O port/AD analog voltage signal input/buzzer signal output Not used. (Open) 30DATA INICDS serial data signal input 31DATA OUTOCDS serial data signal output 32CLOCKI/OCDS serial cloc

35、k signal input/output 33P2-0/EMPHI/OEmphasis signal input/output 34P2-1/HSOI/OI/O port/1 bit DAC input Not used. (Open) 35P2-2/LRCKI/OI/O port/1 bit DAC input Not used. (Open) 36P2-3/DATAI/OI/O port/1 bit DAC input Not used. (Open) 37IN1/BCKIInput port/1 bit DAC input Connect to ground. 38TESTCITest

36、 mode control input Not used. (Open) 39DT19 (/HSO)OOutput port/CD control signal output Not used. (Open) 40DT20 (SPCK)OOutput port/CD control signal output Not used. (Open) 41DT21 (SPDA)OOutput port/CD control signal output Not used. (Open) 42DT22 (COFS)OOutput port/CD control signal output Not used

37、. (Open) 43DOUTODigital out signal output Not used. (Open) 44SBSYOSub code block sync signal output Not used. (Open) 45SBOKOSub code Q data signal output Not used. (Open) 46VDD1Power supply pin (+5 V) 47VSS1Ground pin 48P2VREFPLL 2 voltage reference pin 49PDOIEFM/PLCK signal difference error signal

38、input 50TMAXITMAX detect signal input 51LPFNIInversion signal input of amplifier for lowpass filter 52LPFOOSignal output of amplifier for lowpass filter 53PVREFIPLL voltage reference input 54VCOFOVCO filter signal output 55AVSSGround pin 56SLCOODAC signal output 57RFIIRF signal input 58AVDDPower sup

39、ply pin (+5 V) 59RFCTIRFRP signal center level input SECTION 4 DIAGRAMS 17 CDC-R937/X937 Pin No.Pin NameI/OPin Description 60RFZIIRFRP zero-closs signal input 61RFRPIRFRP ripple signal input 62FEIIFocus error signal input 63SBADISub beam addition signal input 64TEIITracking error signal input 65TEZI

40、ITracking error zero-closs signal input 66FOOOFocus equalizer signal output 67TROOTracking equalizer signal output 68VREFAnalog reference power supply pin 69RFGCORF amplitude adjustment control signal output 70TEBCOTracking balance control signal output 71FMOOFocus equalizer signal output 72DMOODisc

41、 equalizer signal output 732VREFAnalog reference power supply pin 74SELOAPC circuit on/off signal output 75VDD2Power supply pin (+5 V) 76, 77VSS2, XVSSGround pin 78XIICrystal oscillator input for CD 79XOOCrystal oscillator output for CD 80XVDDPower supply pin (+5 V) 81DVSRGround pin 82ROOR channel d

42、ata clock wise signal output 83DVRRR channel reference voltage pin 84DVDDPower supply pin 85DVRLL channel reference voltage pin 86LOOL channel data clock wise signal output 87DVSLGround pin 88TESTMIGround pin 89IN2/(VPP)IGround pin 90RESETISystem reset signal input 91/HOLDIHold mode control signal i

43、nput 92CSIExternal interruption signal input 93MXOONot used. (Open) 94MXIIGround pin 95MVSS2Ground pin 96MVDD2Power supply pin (+5 V) 97 100COM1 4 (OT1 4)ONot used. (Open) 18 CDC-R937/X937 IC901 PD178078GF-588-3BA (SYSTEM CONTROL) (MAIN BOARD) (CDC-R937) IC901 PD178076GF-571-3BA (SYSTEM CONTROL) (MAIN BOARD) (CDC-X937) Pin No.Pin NameI/OPin Description 1BATT INIBattery signal input 2DFP INIFront panel with/without detect signal input 3