Sony-CDPX5000-cd-sm维修电路原理图.pdf

1 Model Name Using Similar MechanismNEW Base Unit TypeBU-12A Optical Pick-up TypeKSS-274A/J-N SPECIFICATIONS MICROFILM COMPACT DISC PLAYER CDP-X5000 AEP Model UK Model E Model Chinese Model SERVICE MANUAL General RadioFans.CN 收音机爱 好者资料库 2 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 COMPO- NENTS WITH SONY PARTS WHOSE PART NUM- BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. This caution label is located inside the unit. TABLE OF CONTENTS 1. SERVICING NOTE. 3 2. GENERAL. 4 3. DISASSEMBLY 3-1.Top Plate Assembly . 8 3-2.Front Panel Assembly. 8 3-3.Base Unit . 9 3-4.Back Panel . 9 4. ELECTRICAL BLOCK ADJUSTMENTS .10 5. DIAGRAMS 5-1.Circuit Boards Location . 12 5-2.IC Pin Function IC101 Focus/Tracking/Sled/EFM Comparator (CXD2515AQ ). 13 IC201 System Control (CXP84124-043Q) . 16 5-3.Printed Wiring Board Servo, Panel Section . 20 5-4.Schematic Diagram Servo, Panel Section . 23 5-5.Schematic Diagram Audio, Power Section . 28 5-6.Printed Wiring Board Audio, Power Section . 31 6. EXPLODED VIEWS 6-1.Top Plate Assembly Seciton . 37 6-2.Front Panel Section . 38 6-3.Back Panel Section . 39 6-4.Base Unit Section (BU-12A). 40 7. ELECTRICAL PARTS LIST .41 The laser component in this product is capable of emitting radiation exceeding the limit for Class 1. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus 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 soldering or unsoldering. ADVARSEL : USYNLIG LASERSTRLING VED BNING NR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDG UDSAETTELSE FOR STRLING. CAUTION : INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT- TIINA NKYMTTMLLE LASERSTEILYLLE. L KATSO STEESEEN. VARNING : OSYNLIG LASERSTRLING NR DENNA DEL R PP- NAD OCH SPRREN R URKOPPLAD. BETRAKTA EJ STRLEN. VORSICHT : UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEFFNET UND SICHEREITSVERRIEGELUNG BERBRCKT. NICHT DEM STRAHL AUSSETZEN. ADVARSEL : USYNLIG LASERSTRLING NR DEKSEL PNES OG SIKKERHEDSLS BRYTES. UNNG EKSPONERING FOR STRLEN. RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 SERVICING NOTE 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 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 emission, 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 three times. WRITING OF FOCUS/TRACKING AUTO GAIN DATA General CD palyers using digital servo ICs automatically adjust the focus/tracking gain each time the disc is changed. In this unit, the gain of the standard disc (YEDS-18) is written in the non-volatile memory (IC203:X24C01S) of the servo board so that the gain need not be re-adjusted when changing discs. Therefore, if the servo board, IC203 of the servo board, or optical pick-up has been replaced, be sure to write the auto gain data. 1. Connect TP (ADJ: Pin 3 of CN515) to GND (Ground), and turn ON the POWER switch. 2. Insert the test disc (YEDS-18). (The TOC data of the disc will be read.) This memorizes the auto gain data of the test disc. Note: If the disc is replaced without turning OFF the power, the auto gain data of the last disc inserted will be memorized. If the POWER switch is turned ON without connecting TP (ADJ) to GND, the auto gain data will not be memorized when the disc is inserted, and the data memorized the last time will be taken as the focus/tracking data. FLUORESCENT INDICATOR TUBE FULL LIGHTING MODE 1. Connect TP (AFJ:Pin 2 of CN515) to GND (Ground), and turn ON the POWER switch. 2. The bridge check (check for short-circut between pins of the S RAM (IC202 of the servo board) is performed, and all the FL tubes light up if there is no bridge. 3. When a key other than the p(stop) key is pressed, the correspond- ing FL tubes lights up. Each time the p(stop) key is pressed, all the FL tubes light up. SERVO BOARD Conductor Side CN514CN513 CN515 IC104IC105IC102 IC202 ADJ 321 AFJ 4 SECTION 2 GENERAL LOCATION OF PARTS AND CONTROLS UNIT OPERATION BLOCK 45 6 7 8123 REMOTE COMMANDER (RM-DX5000) REAR PANEL 14235 687 1 LINE OUT 2 DIGITAL OUT OPTICAL switch 3 DIGITAL OUT COAXIAL switch 4 DIGITAL OUT BALANCED switch 5 AC IN (230V) 6 DIGITAL OUT BALANCED 7 DIGITAL OUT COAXIAL 8 DIGITAL OUT OPTICAL 6 5 4 3 1 2 7 8 ! ! 9 ! ! ! ! ! ! ! ! 1 DISPLAY MODE button 2 PLAY MODE buttons CONTINUE button SHUFFLE button PROGRAM button C.INDEX button 3 Number buttons (1-20) 4 CLEAR button 5 20 button 6 CHECK button 7 REPEAT button 8 AB button 9 (play) button ! =/+ (*AMS) buttons ! C/c(index search) buttons ! TIME button ! MUSIC SCAN button ! SPACE button ! FADER button ! PEAK SEARCH button ! ERASE button ! FILE button ! p (stop) button P (pause) button 0/) (fast forward/ fast rewind) buttons 0/) SLOW buttons 1 POWER switch 2 Disc lid 3 0/) (fast forward/ fast rewind) buttons 4 =/+ buttons (*AMS) This section is extracted from instruction manual. 5 (play) button/lamp 6 P (pause)button/lamp 7 p (stop)button 8 Display window *AMS is the abbreviation of Automatic Music Sensor. 5 6 7 8 SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. TOP PLATE ASSEMBLY 1Connectors (CN207, CN208: SERVO board) 2Two bolts (M3) 3Two bolts (M3) 4Front panel assembly 1Four ornamental screws 2Top plate assembly 3Connector (CN805: Display board) 3-2. FRONT PANEL ASSEMBLY 9 3-3. BASE UNIT 1Connectors (CN201, CN210: SERVO board) 2Screw (B 3X8) 3Ground wire 4Four screws (B 2.6X6) 5Boss (M) (Four pieces) 6Base unit Spring 3-4. BACK PANEL 1Connectors (CN305: A OUT board) (CN502: CN508, CN509, CN512: AUDIO board) 2Screw (B 3X8) 3Ground wire 4Two screws (B 3X6) 6Back panel assembly 5Three screws (BV 3X8) 10 SECTION 4 ELECTRICAL BLOCK ADJUSTMENTS Note: 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope 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 Procedure : 1. Connect oscilloscope to test point TP (FE: CN210 !pin). 2. Connect between test point TP (FEI: IC101 pin) and TP (VC: CN210 !pin) by lead wire. 3. Put disc (YEDS-18) in and turn Power switch on and actuate the focus search. 4. Check the oscilloscope waveform (S-curve) is symmetrical be- tween A and B. And confirm peak to peak level within 31 Vp-p. S-curve waveform 5. 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 bright- ness to obtain best waveform. RF Level Check Procedure : 1. Connect oscilloscope to test point TP (RF:CN215 1pin). 2. Turn Power switch on. 3. Put disc (YEDS-18) in and playback. 4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. Note: A clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the waveform. RF signal waveform E-F Balance Check Procedure : 1. Connect test point TP (ADJ: CN515 3pin) to Ground and TP (TEI: IC101 pin) to TP (VC: CN210 !pin) with a lead wire. 2. Connect oscillscope to test point TP (TE: CN210 !pin) 3. Turn Power switch on. 4. Put disc (YEDS-18) in and playback. 5. Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level. Traverse waveform 6. Remove the lead wire connected in step 1. oscilloscope oscilloscope level : 1.2 Vp-p VOLT/DIV : 200mV TIME/DIV : 500ns +0.25 0.20 oscilloscope SERVO board symmetry A B level: 3 1 Vp-p SERVO board SERVO board 2. Turn Power switch on. 3. Put the disc (YEDS-18) in and playback. Confirm that reading on frequency counter is 4.3218 MHz. Setting of Focus/Tracking Auto Gain Data Refer to “Writing of Focus/Tracking Auto gain data” on page 3. RF PLL Free-run Frequency Check Procedure : 1. Connect frequency counter to test point TP (PLK: CN513 4pin) with lead wire. frequency counter TP (PLK) TP (FE) TP (VC) TP (RF) TP (VC) TP (TE) TP (VC) symmetry0Vdc level : 2 1 Vp-p SERVO board 11 Skew Adjustment (Be sure to perform this adjustment when the optical pick-up or a mechanical part of the optical pick-up has been replaced.) 1. Remove the top plate. (See 3. Disassembly/Top Plate Assembly) 2. Remove the eight screw (+B3X8) of the top plate and remove the KEY board. 3. Connect the KEY board connector and the DISPLAY board con- nector. 4. Remove the base unit. (Do not disconnect the connectors.) (Refer to 3. Disassembly/Base Unit.) 5. Adjust with the unit placed sideways as shown in the figure. 6. Connect and oscilloscope to TP (RF: 1Pin of CN215). 7. While pressing the and buttons, press the POWER but- ton. (The discrete open/close detection is turned OFF.) 8. Set a disk (YEDS-18) and press the button. 9. Rotate the adjustment screw with a Phillips screwdriver and ad- just so that the oscilloscope waveform becomes clear. Note: A clear RF signal waveform means that the shape “” can be clearly distinguished at the center of the waveform. RF signal waveform level : 1.2 Vp-p VOLT/DIV : 200mV TIME/DIV : 500ns +0.25 0.20 Adjustment screw Base unit KEY BOARD 10.After the adjustment, lock the adjustment screw. SERVO BOARD Conductor Side CN514 CN513 (ADJ) (PLK) CN515 IC101 CN215 CN210 6 4 13 1 (RF) (FE) (VC) (TE) 29 (FEI) 27 (TEI) 1 12 10 2 11 1 Note: Hold the base unit horizontally. 12 SECTION 5 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION AC IN board B OUT board BSL board AC SW board DISPLAY board AUDIO board KEY board S POWER board OUT SW board OPTICAL board FLEXIBLE board SERVO board A OUT board U OUT board 13 5-2. IC PIN FUNCTIONS IC101 FOCUS/TRACKING/SLED SERVO/EFM COMPARATOR (CXD2515AQ) Pin Name SRON SRDR SFON TFDR TRON TRDR TFON FFDR FRON FRDR FFON VCOO VCOI TEST DVss TES2 TES3 PDO VPCO VCKI AVD2 IGEN AVS2 ADII ADIO RFDC TE SE FE VC FILO FILI PCO CLTV AVS1 RFAC BIAS ASYI ASYO AVD1 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 I/O O O O O O O O O O O O O I I I I O O I I I O I I I I I O I O I I I I O Function Sled drive output (Open) Sled drive output Sled drive output (Open) Tracking drive output Tracking drive output (Open) Tracking drive output Tracking drive output (Not used) Focus drive output Focus drive output (Open) Focus drive output Focus drive output (Open) VCO output for analog EFM PLL (Open) VCO output for analog EFM PLL (Connected to Ground) TEST pin connected normally to Ground (Connected to Ground) Digital Ground TEST pin connected normally to Ground TEST pin connected normally to Ground Charge-pump output for analog EFM PLL (Open) Charge-pump output for variable pitch PLL (Open) Clock input from variable pitch external VCO (Connected to Ground) Analog power supply Power supply pin for operational amplifiers Analog Ground A/D converter input pin OP amplifier output pin RF signal input Tracking error signal input Sled error signal input Focus error signal input Center voltage input pin Filter output for master PLL Filter input for master PLL Charge-pump output for master PLL Control voltage input for master VCO Analog Ground EFM signal input Asymmetry circuit constant current input Asymmetry comparate voltage input EFM full swing output Analog power supply Abbreviation EFM: Eight to Fourteen Modulation PLL: Phase Locked Loop 14 Pin Name DVDD ASYE PSSL WDCK LRCK DATA BCLK 64DATA 64BCLK 64LRCK GTOP XUGF XPLCK GFS PFCK C2PO XRAOF MNT3 MNT2 MNT1 MNT0 XTAI XTAO XTSL DVss FSTI FSTO C4M C16M MD2 DOUT EMPH WFCK SCOR SBSO EXCK SUBQ SQCK MUTE SENS Pin No. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 I/O I I O O O O O O O O O O O O O O O O O O I O I I O O O I O O O O O I O I I O Function Digital power supply Asymmetry circuit ON/OFF (Connected to +5V) Audio data output mode selection input (Connected to Ground) 48-bit slot D/A interface. Word clock. (Open) 48-bit slot D/A interface. LR clock. DA 16 output when PSSL=1.48-bit slot serial data when PSSL=0 DA 15 output when PSSL=1.48-bit slot data when PSSL=0 DA 14 output when PSSL=1.64-bit slot data when PSSL=0 (Open) DA 13 output when PSSL=1.64-bit slot data when PSSL=0 (Open) DA 12 output when PSSL=1.64-bit slot data when PSSL=0 (Open) DA 11 output when PSSL=1.GTOP output when PSSL=0 (Open) DA 10 output when PSSL=1.XUGF output when PSSL=0 (Open) DA 09 output when PSSL=1.XPLCK output when PSSL=0 DA 08 output when PSSL=1.GFS output when PSSL=0 DA 07 output when PSSL=1.RFCK output when PSSL