Aiwa-CXJN77-cs-sm维修电路原理图.pdf

SERVICE MANUALChilean, Peruvian, Mexican modelsDIN power output (rated): 100 + 100 watts (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):125 + 125 watts (6 ohms at 1 kHz, 10% THD)Music power output (reference):250 + 250 watts (6 ohms at 1 kHz, 10% THD)AEP, UK, CIS modelsThe following measured at AC 120, 127, 220, 240 V 50/60 HzDIN power output (rated): 144 + 144 watts (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference):180 + 180 watts (6 ohms at 1 kHz, 10% THD)InputsVIDEO/MD IN (phono jacks):voltage 450/250 mV, impedance 47 kilohmsAmplifier sectionOutputsPHONES (stereo mini jack):accepts headphones of 8 ohms or moreSPEAKER:accepts impedance of 6 to 16 ohmsCD player sectionSystemCompact disc and digital audio systemLaserSemiconductor laser (=780 nm)Emission duration: continuousFrequency response2 Hz 20 kHz (0.5 dB)Signal-to-noise ratioMore than 90 dBDynamic rangeMore than 90 dBTape deck sectionRecording system4-track 2-channel, stereoFrequency response50 13,000 Hz (3 dB), using Sony TYPE I cassettesTuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner sectionTuning rangeRussian models65.0 74.0 MHz(There is no stereo effect. 10-kHz step)87.5 108.0 MHz(50-kHz step)Other models87.5 108.0 MHz(50-kHz step)AntennaFM lead antennaAntenna terminals75 ohms unbalancedIntermediate frequency10.7 MHzAM tuner sectionTuning rangePan-American models:530 1,710 kHz (with the tuning interval set at 10 kHz)531 1,710 kHz (with the tuning interval set at 9 kHz)European and Russian models:531 1,602 kHz (with the tuning interval set at 9 kHz)AntennaAM loop antennaAntenna terminalsExternal antenna terminalIntermediate frequency450 kHz COMPACT DISC DECK RECEIVERAEP ModelUK ModelE ModelCX-JN77Ver 1.0 2004.049-877-745-01Sony Corporation2004D05-1Home Audio Company 2004.04Published by Sony Engineering CorporationSPECIFICATIONSCX-JN77 is the amplifier, CD player, tape deckand tuner section in JAX-N77/PK77.Model Name Using Similar MechanismNEWCDCD Mechanism TypeCDM74-F1BD81SectionBase Unit NameBU-F1BD81AOptical Pick-up Block NameKSM-215DCPTape deckModel Name Using Similar MechanismNEWSectionTape Transport Mechanism TypeCWM43FR34 Continued on next page RadioFans.CN 收音机爱 好者资料库CX-JN772Notes 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.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.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.This appliance is classified asa CLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size): LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher thanordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350 C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so be careful! Strong viscosityUnleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridges oc-cur such as on IC pins, etc. Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.GeneralPower requirementsEuropean and Russian models:230 V AC, 50/60 HzMexican models:127 V AC, 60 HzOther models:120 V, 220 V or 230 240 V AC, 50/60 HzAdjustable with voltage selectorPower consumptionEuropean and Russian models:180 watts0.25 watts (at the Power Saving Mode)Other models:170 wattsDimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/CD section:Approx. 280 325 425 mmMass Approx. 9.9 kgDesign and specifications are subject to change without notice.RadioFans.CN 收音机爱 好者资料库CX-JN773TABLE OF CONTENTS1.SERVICING NOTES.42.GENERALLocation of Controls .73.DISASSEMBLY3-1.Disassembly Flow .93-2.Case (Side-L/R). 103-3.Case (Top) . 103-4.Tray Panel. 113-5.CD Mechanism Deck (CDM74-F1BD81). 113-6.Front Panel Block. 123-7.Back Panel Section. 123-8.MAIN Board . 133-9.Tape Mechanism Deck (CWM43FR34). 133-10. Table Assy . 143-11. MOTOR (TB) Board. 143-12. MOTOR (LD) Board. 153-13. Base Unit (BU-F1BD81A) . 153-14. CD Board. 164.TEST MODE. 175.ELECTRICAL ADJUSTMENTSCD Section . 216.DIAGRAMS6-1.Block Diagram SERVO Section . 226-2.Block Diagram MAIN Section . 236-3.Block Diagram PANEL/POWER SUPPLY Section . 246-4.Note for Printed Wiring Boards andSchematic Diagrams . 256-5.Printed Wiring Board CD Board . 266-6.Schematic Diagram CD Board . 276-7.Printed Wiring Boards CHANGER Section . 286-8.Schematic Diagram CHANGER Section . 296-9.Printed Wiring Boards CDMP3 CONNECT/TRANSLATION Boards . 306-10. Schematic Diagram CDMP3 CONNECT/TRANSLATION Boards . 316-11. Schematic Diagram MAIN Section (1/4) . 326-12. Schematic Diagram MAIN Section (2/4) . 336-13. Schematic Diagram MAIN Section (3/4) . 346-14. Schematic Diagram MAIN Section (4/4) . 356-15. Printed Wiring Boards MAIN Section . 366-16. Printed Wiring Board PANEL Section . 376-17. Schematic Diagram PANEL Section (1/2) . 386-18. Schematic Diagram PANEL Section (2/2) . 396-19. Printed Wiring Board POWER AMP Section (AEP, UK, CIS only). 406-20. Schematic Diagram POWER AMP Section (AEP, UK, CIS only). 416-21. Printed Wiring Board POWER AMP Section (E51, MX only) . 426-22. Schematic Diagram POWER AMP Section (E51, MX only) . 436-23. Printed Wiring Boards TRANS Section (AEP, UK, CIS only). 446-24. Schematic Diagram TRANS Section (AEP, UK, CIS only). 456-25. Printed Wiring Boards TRANS Section (E51, MX only) . 466-26. Schematic Diagram TRANS Section (E51, MX only) . 477.EXPLODED VIEWS7-1.Case Section . 587-2.Tape Mechanism Deck Section (CWM43FR34). 597-3.Cassette Box Section . 607-4.Front Panel Section . 617-5.Back Panel Section. 627-6.Chassis Section . 637-7.CD Mechanism Deck Section-1 (CDM74-F1BD81) . 647-8.CD Mechanism Deck Section-2 (CDM74-F1BD81) . 657-9.CD Mechanism Deck Section-3 (CDM74-F1BD81) . 667-10. Base Unit Section (BU-F1BD81A) . 678.ELECTRICAL PARTS LIST. 68 AbbreviationE51: Chilean and Peruvian modelsMX: Mexican modelRadioFans.CN 收音机爱 好者资料库4CX-JN77+RLRL Rear View PART No.SECTION 1SERVICING NOTESNOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe 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.LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “CD section adjustment” andcheck that the S curve waveforms is output three times. MODEL IDENTIFICATIONMODELPART No.AEP, UK models4-253-949-0CIS model4-253-950-0Chilean and Peruvian models4-253-951-0Mexican model4-255-500-0RadioFans.CN 收音机爱 好者资料库5CX-JN77SERVICE POSITION CD MECHANISM DECK HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF.1Remove the case (side-L).2Turn the loading gear in the direction of arrow A.A3Pull-out the disc tray.CD mechanism deckstandCDMP3 CONNECT boardRadioFans.CN 收音机爱 好者资料库6CX-JN77 AMP BOARD FRONT PANEL SECTION MAIN boardPANEL boardfront panel sectiontape mechanism deckSUB TRANS boardTRANS boardAMP boardMAIN boardfront panel sectionRadioFans.CN 收音机爱 好者资料库7CX-JN77Main unitALBUM + wlALBUM wlBASS control 5CD qhCD SYNC qsDeck A 9Deck B wkDISC 1 3 wdDISC SKIP/EX-CHANGE wfDisc tray wsDISPLAY qgDisplay window 4ENTER 2i-Bass qdMIDDLE control 5Operation Dial(AMS/TUNING) qfP FILE 6PHONES jack qaPLAY MODE w;PRESET EQ 3REC PAUSE/START 8Remote sensor 7SURROUND waTAPE A/B qkTREBLE control 5TUNER/BAND qjTUNING MODE w;VIDEO/MD qlVOLUME control wh?/1 (power) 1Z PUSH (deck A) (eject) 0Z (eject) wgPUSH Z (deck B) (eject) wjm (rewind) wlx (stop) wlhH(play) wlX (pause) wlM (fast forward) wlALPHABETICAL ORDERA NO ZBUTTON DESCRIPTIONS+ZZwdwfwgwhwk4qjqhqk qlw;wawswj1qgqfqdqs0qa92wl8356 7SECTION 2GENERALThis section is extracted frominstruction manual. LOCATION OF CONTROLSRadioFans.CN 收音机爱 好者资料库8CX-JN77Use buttons on the remote for the operation.1Press ?/1 to turn on the system.2Press CLOCK/TIMER SET.3Press . or repeatedly to set the hour.4Press ENTER.5Press . or repeatedly to set the minute.6Press ENTER.The clock starts working.To adjust the clock1Press CLOCK/TIMER SET.2Press . or repeatedly to select “CLOCK SET”, then press ENTER.3Do the same procedures as step 3 to 6 above.Notes The clock settings are canceled when you disconnect the power cord or if a power failure occurs. You cannot set the clock in Power Saving Mode.Setting the clockRemote controlALBUM + qaALBUM qdCD qkCLEAR qgCLOCK/TIMER SELECT 2CLOCK/TIMER SET 3DISC SKIP 0DISPLAY waENTER 9EQ qfFM MODE 4FUNCTION 6PLAY MODE w;REPEAT 4SLEEP wsTAPE qjTUNER BAND 5TUNER MEMORY qlTUNING MODE w;VOLUME +/ qs?/1 (power) 1m/M (rewind/fast forward)7N (play) 8X (pause) 8x (stop) 8/+ (tuning) qh./ (go back/go forward)qhALPHABETICAL ORDERA EF ZBUTTON DESCRIPTIONS456789q;ws1qdqgqfwaw;qlqkqjqhqaqs32RadioFans.CN 收音机爱 好者资料库CX-JN779 This set can be disassembled in the order shown below.3-1.DISASSEMBLY FLOWSECTION 3DISASSEMBLYSET3-2.CASE(SIDE-L/R)(Page 10)3-3.CASE (TOP)(Page 10)3-4.TRAY PANEL(Page 11)3-6.FRONT PANELBLOCK(Page 12)3-7.BACK PANELSECTION(Page 12)3-9.TAPE MECHANISMDECK(CWM43FR34)(Page 13)3-8.MAIN BOARD(Page 13)3-14. CD BOARD(Page 16)3-13. BASE UNIT(BU-F1BD81A)(Page 15)3-10. TABLE ASSY(Page 14)3-11. MOTOR (TB)BOARD(Page 14)3-12. MOTOR (LD)BOARD(Page 15)3-5.CD MECHANISM DECK(CDM74-F1BD81)(Page 11)Note 1:The process described in can be performed in any order.Note 2:Without completing the process described in , the next process can not be performed.RadioFans.CN 收音机爱 好者资料库CX-JN77103-3.CASE (TOP)Note: Follow the disassembly procedure in the numerical order given.3-2.CASE (SIDE-L/R)2case (top)1two screws(BVTP3 10)4case (side-L)7case (side-R)6two screws(BVTP3 10)3two screws(BVTP3 10)1two screws (case 3 TP2)5three screws (case 3 TP2)2screw (case 3 TP2)RadioFans.CN 收音机爱 好者资料库CX-JN77113-4.TRAY PANEL3-5.CD MECHANISM DECK(CDM74-F1BD81)1Turn the loading gearin the direction of arrow A.Afour claws3Remove the tray panelin the direction of arrow C.C2Pull-out the tray in the direction of arrow B.B7CD mechanism deck(CDM74-F1BD81)2screw(BVTP3 10)3three screws(BVTP3 10)1screw(BVTP3 10)5wire (flat type) (17 core)(CN873)6two connectors(CN701, CN874)4RadioFans.CN 收音机爱 好者资料库CX-JN77123-6.FRONT PANEL BLOCK3-7.BACK PANEL SECTION3screw(BVTP3 8)5screw(BVTP3 8)4harness6harness8front panel block7three screws(BVTP3 8)2connector(CN112)1wire (flat type) (31 core) (AEP, UK, CIS)/wire (flat type) (29 core) (E51, MX)(CN302)2connector(CN309)2connector(CN103)3two screws(BVTP3 10)1wire (flat type) (11 core) (E51, MX)/wire (flat type) (15 core) (AEP, UK, CIS)(CN101)2connector(CN308)4duct cover9back panel section5three screws(BVTP3 10)6two screws(BVTP3 10)8SUB TRANS board7two screws(BVTP3 10)AbbreviationE51: Chilean and Peruvian modelsMX: Mexican modelAbbreviationE51: Chilean and Peruvian modelsMX: Mexican modelRadioFans.CN 收音机爱 好者资料库CX-JN77133-8.MAIN BOARD3-9.TAPE MECHANISM DECK(CWM43FR34)3connector(CN307)2two screws(BVTP3 8)1connector(CN907)4MAIN board1six screws(BVTP2.6 8)2TRANSLATION board(AEP, UK, CIS)3tape mechanism deck(CWM43FR34)RadioFans.CN 收音机爱 好者资料库CX-JN77143-10. TABLE ASSY3wire (flat type) (5 core)(CN702)4hook1Turn the loading gearin the direction of arrow A.A5two claws2Pull-out the table assy.6table assy3-11. MOTOR (TB) BOARD2table (loading)4connector(CN731)1screw(PTPWH M2.6)5two screws(BTTP M2.6)6MOTOR (TB) board3belt (table)RadioFans.CN 收音机爱 好者资料库CX-JN77153-12. MOTOR (LD) BOARD3-13. BASE UNIT (BU-F1BD81A)2connector(CN704)3two screws(BTTP M2.6)4MOTOR (LD) board1belt (loading)4three coil springs(insulator)7coil spring(insulator)1wire (flat type) (27 core) (CN201)6floating screw(PTPWHM2.6)5three insulators8insulator9base unit (BU-F1BD81A)2three screws(BTTP M2.6)3three stoppers (BU)RadioFans.CN 收音机爱 好者资料库CX-JN77161Remove four solders.4CD board2wire (flat type) (16 core)(CN101)3screw (2.6 8)3-14. CD BOARDRadioFans.CN 收音机爱 好者资料库17CX-JN77SECTION 4TEST MODEMC COLD RESET The cold reset clears all data including preset data stored in theRAM to initial conditions. Execute this mode when returningthe set to the customer.Procedure:1.Press theI/1button to turn the power ON.2.Press three buttons ofx, P FILE and DISC 1 simulta-neously.3.The message “COLD RESET” is displayed on the fluorescentindicator tube momentarily, then becomes standby states.TUNER STEP CHANGE-OVER(Except AEP, UK, CIS) A step of AM channels can be changed over between 9 kHz and10 kHz.Procedure:1.Press theI/1button to turn the power ON.2.Press the TUNER/BAND button to select “AM”.3.Press theI/1button to turn the power OFF.4.Press two buttons of PLAY MODE/TUNING MODE and I/1simultaneously.5.The message “AM 9K STEP” or “AM 10K STEP” is displayedon the fluorescent indicator tube, and thus the channel step ischanged over.CD SHIP (LOCK) MODE This mode moves the optical pick-up to the position durable tovibration. Use this mode when returning the set to the customerafter repair.Procedure:1.Press theI/1button to turn the power ON.2.Press the CD button to select “CD”.3.Press two buttons of CD and POWER simultaneously.4.The message “LOCK” is displayed on the fluorescent indica-tor tube, and the CD ship mode is set.CD SHIP (LOCK) MODE & COLD RESET This mode is used to perform CD chip (lock) mode and coldreset simultaneously.Procedure:1.Press theI/1button to turn the power ON.2.Press the CD button to select “CD”.3.Press three buttons ofx, CD and DISPLAY simulta-neously.4.The message “COLD RESET” is displayed on the fluorescentindicator tube momentarily, then