Sony-CDP-CX220-Service-Manual电路原理图.pdf

MICROFILM SERVICE MANUAL COMPACT DISC PLAYER US Model Canadian Model AEP Model UK Model E Model Australian Model Compact disc player LaserSemiconductor laser ( = 780 nm) Emission duration: continuous Laser outputMax 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 with 7 mm aperture. Frequency response20 Hz to 20 kHz 0.5 dB Signal-to-noise ratioMore than 105 dB Dynamic rangeMore than 98 dB Harmonic distortionLess than 0.0045% Channel separationMore than 97 dB Outputs SPECIFICATIONS CDP-CX220 Model Name Using Similar MechanismCDP-CX250 CD Mechanism TypeCDM-40B Base Unit TypeKSM-213BKN/M-N Optical Pick-up TypeKSS-213B/S-N JackMaximumLoad impedance typeoutput level LINE OUTPhono2VOver 10 kilohms Jacks(at 50 kilohms) DIGITALOptical18 dBmWave length: 660 nm OUToutput (OPTICAL)connector Where purchasedPower requirements USA/Canada120 V AC, 60 Hz Australia240 V AC, 50/60 Hz Europe220 V 230 V AC, 50/60 Hz Other countries110 V 120 V or 220 V 240 V AC, adjustable, 50/60 Hz General Power requirements Power consumption12 W Dimensions (approx.)When the front cover is closed (w/h/d)430 200 480 mm (17 7 7/8 19 in.) incl. projecting parts Mass (approx.)9.5 kg (21 lbs) Supplied accessories Audio cord (2 phono plugs 2 phono plugs) (1) Remote commander (remote) (1) Sony SUM-3 (NS) batteries (2) CD booklet holders (2) and label (1) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.6 3.DISASSEMBLY.7 4.TEST MODE. 10 5.MECHANICAL ADJUSTMENTS. 13 6.ELECTRICAL ADJUSTMENTS. 19 7.DIAGRAMS. 22 7-1.Note for Printed Wiring Boards and Schematic Diagrams . 23 7-2.Printed Wiring Board BD Section . 25 7-3.Schematic Diagram BD Section . 27 7-4.Printed Wiring Board Main Section . 29 7-5.Schematic Diagram Main Section . 31 7-6.Printed Wiring Boards Jack Section . 33 7-7.Schematic Diagram Jack Section . 35 7-8.Printed Wiring Boards Panel Section . 37 7-9.Schematic Diagram Panel Section . 39 7-10. Printed Wiring Board Sensor/Motor Section . 41 7-11. Schematic Diagram Sensor/Motor Section . 43 7-12. IC Pin Function Description . 47 8.EXPLODED VIEWS. 49 9.ELECTRICAL PARTS LIST. 56 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation 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 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. 4-998-525-0 4-998-525-1 4-998-525-2 4-998-525-4 4-998-525-5 4-998-525-6 US model Canadian model AEP, AED UK model Singapore model E model Australian model PART No.MODEL MODEL IDENTIFICATION BACK PANEL Abbreviation AED: North European CAUTIONINVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSELUSYNLIG LASERSTRLING VED BNING NR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDG UDSAETTELSE FOR STRLING. VORSICHTUNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEFFNET UND SICHEREITSVERRIEGELUNG BERBRCKT. NICHT DEM STRAHL AUSSETZEN. VARO!AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT TIINA NKYMTTMLLE LASERSTEILYLLE. L KATSO STEESEEN. VARNINGOSYNLING LASERSTRLING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. ADVERSELUSYNLIG LASERSTRLING NR DEKSEL PNES OG SIKKERHEDSLS BRYTES. UNNG EKSPONERING FOR STRLEN. VIGYAZAT!A BURKOLAT NYITSAKOR LTHATATLAN LZERSU GRVESZLY KERLJE A BESUGRZST (Except for the customers in the United States and Canada) The following caution label is located inside the unit. PART No. RadioFans.CN 收音机爱 好者资料库 3 ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-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 PUB- LISHED BY SONY. SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check 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 below. 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.). Leakage current can be measured by any one of three methods. 1.A commercial leakage tester, such 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 voltmeter. The “limit” indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground SECTION 1 SERVICING NOTES The laser diode in the optical pick-up 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 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 diode emis- sion, observe from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the “S curve check” in ”CD section adjustment” and check that the S curve waveform is output repeatedly. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 4 CD-TEXT TEST DISC This unit is able to display 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 on the disc table with the side labeled as “test disc” as the right side, close the front cover, 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/0 dB/ L ?(38h to 3Fh)N All the same 46A B C D E F G(40h to 47Fh)N All the same 47H I J K L MNO(48h to 4Fh)N All the same 48P QR S T U VW(50h to 57Fh)PQR S T U VW (50h to 57h) 49X Y Z _(58h to 5Fh)XY Z _ (58 50a b c d e f g(60h to 67Fh)a b c d e f g (60h to 67h) 51h i j k l m n o(68h to 6Fh)N All the same 52p q r s t u v w(70h to 77Fh)p q r s t u v w (70h to 77h) 53x y z I (78h to 7Fh)x y z (78 54i (A0h to A7h) 8859-1i (A0 is not displayed 55C PR (A8h to AFh)(A8 C P R are not displayed 56 23 (B0h to B7h) (B0 2 3 are not displayed 57 1 (B8h to BFh) (B8 1 are not displayed 58 (C0h to C7Fh) (C0h to C7h) 59 (C8h to CFh)N All the same 60D (D0h to D7Fh)D (D0h to D7h) 61 Y(D8h to DFh) Y (D8 62 (E0h to E7h) (E0h to E7h) 63 (E8h to EFh)N All the same 64 (F0h to F7Fh) (F0h to F7h) 65 y(F8h to FFFh) y (F8h to FFh) 66No.66N All the same 67No.67N All the same tototo 99No.99N All the same Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be displayed. This is no a fault.) * TRACK No. Recorded ContentsDisplay 1 4 1 2 3 4 1 4 1 2 3 4 6 SECTION 2 GENERAL LOCATION OF PARTS AND CONTROLS Front Panel Pp STANDBY 1/u CONNUE GROU GROU 5 SHUE GROU 2 GROU 6 ROG AM GROU 3 GROU 7 REA GROU 4 GROU 8 IMEEX GROU I E CH CK AMS O EN C OSE CR IN U MEMO EARCH PUSH ENTER DISC/CHARACTER 123456789! ! ! ! ! 1 I/u (power switch) button 2 CONTINUE button 3 SHUFFLE button 4 Display window 5 PROGRAM button 6 REPEAT button 7 TIME/TEXT button 8 Front cover 9 MEMO SEARCH button ! INPUT button ! / buttons ! JOG dial (DISC/CHARACTER/PUSH ENTER knob) ! CHECK button ! CLEAR button ! p button ! P button ! button ! (OPEN/CLOSE) button ! GROUP FILE button GROUP 1 8 buttons 7 CASE FRONT PANEL SECTION Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBLY 3Remove the case to direction of arrow A. 1five screws (case 3 TP2) 1four screws (case 3 TP2) 2 Open the case. A 6Remove the door (CD) assy to direction of arrow A. 1flat wire (CN501) 4claw 3five screws (BVTT3 6) 5front panel section 2four screws (BVTP3 8) 4claw A 8 GUIDE ASSY REAR PANEL SECTION 3three screws (BVTT3 6) 4boss 2screw (PSW3 6) 5guide assy 3three screws (BVTT3 6) 1connector (CN503) 5PC board holder 1connector (CN505) 8bracket 1connector (CN904) 2flat wire (CN502) 3three connectors (CN504, 506, 507) 4five screws (BVTT3 6) 3four screws (PTTWH3 6) 7four screws (BVTT3 6) 6rear panel section 9 MECHANISM DECK BASE UNIT 1 screw (BVTT3 8) 2 fulcrum plate (BU upper) assy 3 base unit 2mechanism deck 1three screws (BVTT3 8) 1six screws (BVTT3 8) 10 ButtonButton Number or Display CLEAR3 CHECK4 (AMS)5 (AMS)6 PUSH ENTER7 (OPEN/CLOSE)9 INPUT10 MEMO SEARCH11 I/u18 TIME/TEXT19 GROUP FILE20 GROUP 821 GROUP 722 GROUP 623 GROUP 524 REPEAT27 PROGRAM28 SHUFFLE29 CONTINUE30 GROUP 431 GROUP 332 GROUP 233 GROUP 134 All lit (LED lit) PPartial lighting 1 (LED lit) pPartial lighting 2 DISC/Partial lighting 3 CHARACTER When the jog dial is rotated to the right, the GROUP LEDs light up in the order of 1 2.8 2nd 1. When the jog dial is rotated to the left, the GROUP LEDs light up in the order of 8 7.1 2nd 8. SECTION 4 TEST MODE DISPLAY CHECK MODE With the power turned off (standby state), press the I/u button while pressing the P (pause) button. All FL segments and grids light up together with the (play), P (pause), and standby LEDs. At the same time, the GROUP LEDs are scanned one by one. Note: To exit this mode, press the p (stop) button. ADJ MODE 1.Turn ON the power of the unit, set disc to disc table, and per- form chucking. 2.Disconnect the power supply plug from the outlet. 3.To set ADJ mode, connect the test point (TP: ADJ) of the MAIN board to Ground, and connect the power supply plug to the outlet. The power will turn on automatically, and the first track will be played. In this mode, table rotation and loading operations are not per- formed because it is taken that the disc has already been chucked. Note: The same operations are also performed in the following when the test point (TP: ADJ) is connected to Ground after turning on the power. Direct search (movement of sledding motor) is not performed during accessing Ignored even when GFS becomes L Ignored even when the Q data cannot be read Focus gain does not decrease Spindle gain does not decrease Servo related settings can be set manually and checked (Refer to ADJ Mode Special Functions Table) ADJ Mode Special Functions Table (The buttons shown with ( ) function by using the sup- plied remote commander only) KEY AND FLUORESCENT DISPLAY TUBE CHECK MODE 1.Connect the test point (TP:AFADJ) of the MAIN board to the Ground, and insert the power plug to the outlet to set this mode. First, the external SRAM is checked, and if abnormal, “SRAM NG” is displayed. If OK, the following steps are performed. * Fluorescent Display Tube Check Mode The whole fluorescent display tube lights up when the con- nection in step 1 is made. * Key Check Mode This mode is set when a button is pressed after the whole fluorescent display tube lights. All buttons have a button number. When a button is pressed, the counter display is counted up, and the number of that button is displayed. However, the counter display will only count up to 26, but the number of buttons pressed will always be displayed. * O Counter displayButton number display Buttons and Corresponding Button Numbers ButtonButton Number or Display CONTINUEServo average display Displays VC, FE, RF, TE and traverse in hexadecimal numbers SHUFFLEFocus bias display Each time this is pressed, the focus bias is switched between 1 and 2 1 Bias actually setOptimum biasMinimum jitter 2 U:Upper aliasing biasL:Lower aliasing bias PROGRAMAuto gain display Displays focus, tracking, sledding in hexadecimal numbers GROUP 1 (1)Increases the focus bias in 8 steps. GROUP 2 (2)Sets the focus bias in the middle of aliasing. GROUP 3 (3)Turns off the tracking and sledding servo GROUP 4 (4)Returns the auto gain to the initial value (30) GROUP 5 (5)Turns off the focus servo GROUP 6 (6)Decreases the focus bias in 8 steps. GROUP 7 (7)Re-adjusts the focus bias GROUP 8 (8)Turns on the tracking and sledding servo (9)Switches the focus servo gain between normal and down FG. norm: normal, FG. down: down (10/0)Sets the focus bias to 0 (no bias) Next, displays the jitter measured at the focus bias set CHECKS-curve observation mode CLEARAutomatic eccentric measurement The results of measurement is displayed in mm directly. 11 Partial lighting 1 Partial lighting 2 Partial lighting 3 Test Points Location: AGING MODE Mode which repeatedly changes and plays back discs automati- cally in the unit. It will repeat aging as long as no errors occur. If an error occurs during aging, it will stop all servos, motors, etc. instantaneously, display the error number, and stop opera- tions. However, the stopping conditions differ according to wheth