Sony-HCDBX6AV-cs-sm 维修电路原理图.pdf

SERVICE MANUALCOMPACT DISC DECK RECEIVERUS ModelCanadian ModelAEP ModelUK ModelHCD-BX6AVE ModelAustralian ModelHCD-DX6AVSPECIFICATIONSHCD-BX6AV/DX6AVPhoto: HCD-BX6AVHCD-BX6AV/DX6AV is the Amplifier,CD player, Tape player and Tunersection in MHC-BX6AV/DX6AV.Model Name Using Similar MechanismHCD-BX2/DX2CD Mechanism TypeEXL-M7Optical Pick-up NameOPTIMA-7Model Name Using Similar MechanismHCD-RXD6AVTape Transport Mechanism TypeCWL-44-RRCDSectionTape deckSection Continued on next page AUDIO POWER SPECIFICATIONS:(US model only)POWER OUTPUT AND TOTALHARMONIC DISTORTION:with 6 ohm loads both channels driven, from120-10,000 Hz; rates 10 watts per channelminimum RMS power, with no more than10% total harmonic distortion from 250milliwatts to rated output.Amplifier sectionUS modelCenter Speaker:Continuous RMS power output (reference)40 watts(6 ohms at 1 kHz,10% THD)Rear Speaker:Continuous RMS power output (reference)40 + 40 watts(6 ohms at 1 kHz,10% THD)Canadian modelFront Speaker:Continuous RMS power output (reference)60 + 60 watts(6 ohms at 1 kHz,10% THD)Total harmonics distortionLess than 0.07%(6 ohms at 1 kHz, 30 W)Center Speaker:Continuous RMS power output (reference)40 watts(6 ohms at 1 kHz,10% THD)Rear Speaker:Continuous RMS power output (reference)40 + 40 watts(6 ohms at 1 kHz,10% THD)AEP, UK modelsFront Speaker:DIN power output (rated) 40 + 40 watts(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)50 + 50 watts(6 ohms at 1 kHz,10% THD)Music power output (reference)100 + 100 watts(6 ohms at 1 kHz,10% THD)Center Speaker:DIN power output (rated) 25 watts(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)35 watts(6 ohms at 1 kHz,10% THD)Music power output (reference)70 watts(6 ohms at 1 kHz,10% THD)Rear Speaker:DIN power output (rated) 25 + 25 watts(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)35 + 35 watts(6 ohms at 1 kHz,10% THD)Music power output (reference)70 + 70 watts(6 ohms at 1 kHz,10% THD)Other models:The following measured at AC 120/240 V,50/60 HzFront Speaker:DIN power output (rated) 45 + 45 watts(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)60 + 60 watts(6 ohms at 1 kHz,10% THD)Center Speaker:DIN power output (rated) 30 watts(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)40 watts(8 ohms at 1 kHz,10% THD)Rear Speaker:DIN power output (rated) 30 + 30 watts(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)40 + 40 watts(6 ohms at 1 kHz,10% THD)InputsMD/VIDEO IN:voltage 250/450 mV,(phono jacks)impedance 47 kilohmsDVD INPUT:FRONT IN:voltage 450 mV,(phono jacks)impedance 47 kilohmsREAR IN:voltage 450 mV,(phono jacks)impedance 47 kilohmsCENTER IN:voltage 450 mV,(phono jacks)impedance 47 kilohmsWOOFER IN:voltage 450 mV,(phono jacks)impedance 47 kilohmsOutputsPHONES:accepts headphones of(stereo mini jack)8 ohms or moreFRONT SPEAKER:accepts impedance of 6 to16 ohmsREAR SPEAKER:accepts impedance of 6 to16 ohmsCENTER SPEAKER:accepts impedance of 6 to16 ohmsWOOFER:Voltage 1 V, impedance1 kilohmsCD player sectionSystemCompact disc and digitalaudio systemLaserSemiconductor laser(=780nm)Emission duration:continuousLaser outputMax. 44.6 W*This output is the valuemeasured at a distance of200 mm from theobjective lens surface onthe Optical Pick-up Blockwith 7 mm aperture.Manufactured under license from DolbyLaboratories Licensing Corporation.Additionally licensed under Canadian patent1,037,877. “Dolby”, the double-D symbol ; and“PRO LOGIC” are trademarks of DolbyLaboratories Licensing Corporation.RadioFans.CN 收音机爱 好者资料库2ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM-POSANTS QUE PAR DES PICES SONY DONT LESNUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.Wavelength780 790 nmFrequency response20 Hz 20 kHz (0.5 dB)Signal-to-noise ratioMore than 90 dBDynamic rangeMore than 90 dBCD OPTICAL DIGITAL OUT(Square optical connector jack, rear panel)Wavelength660 nmOutput Level18 dBmTape player sectionRecording system4-track 2-channel stereoFrequency response40 13,000 Hz (3 dB),using Sony TYPE I cassetteTuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner sectionTuning range 87.5 108.0 MHzAntennaFM lead antennaAntenna terminals75 ohm unbalancedIntermediate frequency10.7 MHzAM tuner sectionTuning rangeUS, Canadian models:530 1,710 kHz(with the interval set at10 kHz)531 1,710 kHz(with the interval set at9 kHz)AEP, UK and Middle Eastern models:531 1,602 kHz(with the interval set at9 kHz)Other models:531 1,602 kHz(with the interval set at9 kHz)530 1,710 kHz(with the interval set at10 kHz)AntennaAM loop antennaAntenna terminalsExternal antenna terminalIntermediate frequency450 kHzGeneralPower requirementsUS, Cnadian models:120 V AC, 60 HzAEP, UK models:230 V AC, 50/60 HzAustralian model:220 240 V AC, 50/60 HzMexican model:120 V AC, 60 HzOther models:110 120 V or 220 240 V AC, 50/60 HzAdjustable with voltage selectorPower consumptionUS model:160 wattsCanadian model:180 wattsAEP, UK models:160 wattsOther models:160 wattsDimensions (w/h/d)Approx. 280 x 325 x 390 mmMassUS model:Approx. 9.2 kgCanadian model:Approx. 9.2 kgAEP, UK models:Approx. 9.2 kgOther model:Approx. 9.1 kgSupplied accessories:AM loop antenna (1)FM lead antenna (1)Remote Commander (1)Speaker cords (2)Center speaker pads (4)Design and specifications are subject to changewithout notice.This appliance is classifiedas a CLASS 1 LASERproduct. The CLASS 1LASER PRODUCTMARKING is located onthe rear exterior.TABLE OF CONTENTS1.SERVICING NOTES.32.GENERALLocation of Controls .4Setting the Time .53.DISASSEMBLY.64.DIAGRAMS4-1.Note for Printed Wiring Boards andSchematic Diagrams . 114-2.Schematic Diagram CD Section (1/4) . 124-3.Schematic Diagram CD Section (2/4) . 134-4.Schematic Diagram CD Section (3/4) . 144-5.Schematic Diagram CD Section (4/4) . 154-6.Printed Wiring Boards CD Section . 164-7.Printed Wiring Boards MAIN Section . 174-8.Schematic Diagram MAIN Section (1/4) . 184-9.Schematic Diagram MAIN Section (2/4) . 194-10. Schematic Diagram MAIN Section (3/4) . 204-11. Schematic Diagram MAIN Section (4/4) . 214-12. Printed Wiring Boards PANEL Section . 224-13. Schematic Diagram PANEL Section . 234-14. Printed Wiring Boards AMP/POWER SUPPLY Section . 244-15. Schematic Diagram FRONT AMP Section . 254-16. Schematic Diagram CENTER/REAR AMP Section . 264-17. Schematic Diagram POWER SUPPLY Section . 275.EXPLODED VIEWS. 336.ELECTRICAL PARTS LIST. 39Notes 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.Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur-ing repairing. Do not touch the soldering iron on the same conductor of thecircuit board (within 3 times). Be careful not to apply force on the conductor when solderingor unsoldering.RadioFans.CN 收音机爱 好者资料库3SECTION 1SERVICING NOTESThe laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing and the humanbody.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focusedon the disc reflective surface by the objective lens in the opticalpick-up block. Therefore, when checking the laser diode emis-sion, observe from more than 30 cm away from the objective lens. MODEL IDENTIFICATION Rear Panel NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITModelPower Voltage IndicationUS modelAC: 120 V - 60 Hz 160 WCanadian modelAC: 120 V - 60 Hz 180 WAEP, UK modelsAC: 230 V - 50/60 Hz 160 WAustralian modelAC: 220 240 V - 50/60 Hz 160 WMexican modelAC: 120 V - 50/60 Hz 160 WOther modelsAC: 110 120 V/220 240 V - 50/60 Hz 160 WPower Voltage IndicationSAFETY CHECK-OUTAfter 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 TESTThe AC leakage from any exposed metal part to earth ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microamperes.).Leakage current can be measured by any one of three methods.1.A commercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3.Measuring the voltage drop across a resistor by means of aVOM 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 batteryoperated 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 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundThe following caution label is located inside the unit.4SECTION 2GENERAL LOCATION OF CONTROLS Front View Rear View 1TIMER indicator2I/1 button and indicator3DISPLAY button4SPECTRUM button5GROOVE button and indicator6FILE SELECT button7PHONES jack8ENTER button9, . button0DISC SKIP EX-CHANGE buttonqax buttonqsDISC 1 buttonqdh H button and indicatorqfDISC 2 buttonqgDISC 3 buttonqhX buttonqjZ OPEN/CLOSE buttonqk, + button1FM ANTENNA jack or terminals2AM ANTENNA terminals3WOOFER OUT jack4MD/VIDEO IN jacks5DVD INPUT jacks6CENTER SPEAKER terminals7REAR SPEAKER terminals8FRONT SPEAKER terminals9CD DIGITAL OUT (OPTICAL) connector0VOLTAGE SELECTOR switch (E model)123456789qlw;wawfwhwswgwdqgqd0qfqjqsqhqkqawleswke;ea edwj9013876542qlPLAY MODE, DIRECTION button(US, Canadian, E, Australian models)PLAY MODE, PTY/DIRECTION button(AEP, UK models)w;REPEAT, STEREO/MONO buttonwaEDIT, TUNER MEMORY buttonwsVOLUME knobwdj J buttonwfREC button and indicatorwgREC PAUSE button and indicatorwhCD SYNC buttonwjMD (VIDEO) button and indicatorwkDOLBY PRO LOGIC button and indicatorwlTAPE A/B button and indicatore;DVD 5.1CH button and indicatoreaCD button and indicatoresDSP button and indicatoredTUNER/BAND button and indicator591Press CLOCK/TIMER SET.The hour indication flashes.Step 3: Setting thetimeYou must set the time before using the timerfunctions.The clock uses a 24-hour system on theEuropean model, and a 12-hour system onother models.The 12-hour system is used for illustrationpurposes.13,52,42Press . or repeatedly to setthe hour.3Press ENTER.The minute indication flashes.4Press . or repeatedly to setthe minute.5Press ENTER.The clock starts working.TipIf you make a mistake, start over from step 1.To change the timeThe previous explanation shows how to setthe time while the power is off. To change thetime while the power is on, do the following:1 Press CLOCK/TIMER SET.2 Press . or repeatedly to select SETCLOCK.3 Press ENTER.4 Perform steps 2 through 5 above.NotesThe clock settings are canceled when youdisconnect the power cord or if a power failureoccurs.For MHC-BX6AV, you cannot set the time in thePower Saving Mode (see page 12).This section is extracted frominstruction manual.6CD DOORCD ASSYNote: Follow the disassembly procedure in the numerical order given.SECTION 3DISASSEMBLY1 Pull out the CD tray.4 Push the CD tray.2 five claws3 CD door4 four claws6 wire (flat type) (22core)(CN705)1 screw(M3 12)1 screw(M3 12)2 two screws(BVTP3 12)38 CD assy7 harness (6core)(CN304)5 connector(CN703)CD TRAY (page 9)7FRONT PANEL SECTIONMAIN BOARD1 connector(CN301)1 connector(CN502)3 ten screws(BVTP3 10)1 two connectors(CN302, 305)4 screw (M3 12)2 three screws(BVTP3 12)5 front panel section4 screw (M3 12)4 connector(CN101)6 main PC holder (L)5 two claws3 two screws(BVTP3 12)3 two screws(BVTP3 12)7 two claws1 two connectors8 main PC holder (R)9 MAIN board2 harness (5core)(CN303)8FRONT BOARD AND CENTER/REAR BOARD SECTION, DC FAN (M505)8 four screws(3 30)3 four screws(BVTP3 10)3 eight screws(BVTP3 10)5 three screws(BVTP3 6)5 three screws(BVTP3 6)qs FRONT board andCENTER/REAR board section7 connector(CN505)9 holder46 rear cover2 three screws(PTPWH4 10)1 connector(CN501)9 holderqa DC fan (M505)0 main chassis holderMECH DECK (CWL-44-RR)1 six screws(BVTP3 8)2 harness3 mech deck (CWL-44-RR)9CD TRAY1 two screws(KTP3 8)2 top cabinet1 two screws(KTP3 8)4 screw(BTP3 10)6 screw (BTP3 10)7 bracket5 bracket8 CD tray3 wire (flat type) (5core)(CN06)DECORD BOARD4 three screws(BTP2.6 6)6 DECORD board1 wire (flat type) (5core)(CN706)2 wire (flat type) (15core)(CN701)3 connector(CN707)5 connector(CN702)10BASE UNITCASSETTE LID2 flange screw3 UD-gear4 screw(PTPWH3 8)5 UD-cam8 spring 7 spring6 spring 1 two screws(PTPWH3 10)9 base unitcassette door(Note: Four claws are used.)1111SECTION 4DIAGRAMS4-1.NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMSNote on Printed Wiring Board: Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing.(The other layers patterns are not indicated.)Note on Schematic Diagram: All capacitors are in F unless otherwise noted. U: F,pF: F 50 WV or less are not indicated except forelectrolytics and tantalums. If a numeric value of capacitor is a decimal function, thepreceding zero may be omitted.(For example, .1 expresses 0.1) All resistors are in and 1/4 W or less unless otherwisespecified.f: internal component. 2 : nonflammable resistor. C : panel designation. U : B+ Line. V : B Line. H : adjustment for repair. Voltages are taken with a VOM (Input impedance 10 M).Voltage variations may be noted due to normal produc-tion tolerances. Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances. Circled numbers refer to waveforms. Signal path.F: FMf: AME: TAPE PLAY (DECK A)d: TAPE PLAY (DECK B)G: TAPE RECJ: CD PLAY (ANALOG OUT)c: CD PLAY (DIGITAL OUT) AbbreviationCND: Canadian modelNote:The components identi-fied by mark 0 or dottedline with mark 0 are criti-cal for safety.Replace only with partnumber specified.Note:Les composants identifis parune marque 0 sont critiquespour la scurit.Ne les remplacer que par unepice portant le numrosp