Sony-AVDC700ES-rec-sm 维修电路原理图.pdf

1Model Name Using Similar MechanismNEWMechanism TypeCDM79-DVBU22Optical Pick-up NameTDP022WSERVICE MANUALUS ModelCanadian ModelAVD-C700ESSUPER AUDIO CD/DVD RECEIVERSPECIFICATIONSAUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTAL HARMONIC DISTORTION:With 8 ohm loads, both channels driven, from 20 20,000 Hz; rated120 watts per channel minimum RMS power, with no more than 0.7 %total harmonic distortion from 250 milliwatts to rated output.Amplifier sectionStereo mode120 W + 120 W (8/4 ohms, 20 20,000 Hz, THD 0.7 %)Surround modeFront: 120 W + 120 WCenter*: 120 WSurround*: 120 W + 120 WSurround back*: 120 W (8/4 ohms, 20 20,000 Hz,THD 0.7 %)* Depending on the sound field settings and the source, there may be no sound output.Inputs (Analog)ANALOG IN:Sensitivity: 150 mVImpedance: 50 kilohmsInputs (Digital)DIGITAL IN OPTICAL:DIGITAL IN COAXIAL:Impedance: 75 ohmsOutputs (Analog)PHONES:Accepts low- and high-impedance headphonesOutputs (Digital)DIGITAL OUT OPTICAL Continued on next page Ver 1.1 2004. 09Sony CorporationAudio GroupPublished by Sony Engineering Corporation9-961-309-022004I04-1 2004. 09RadioFans.CN 收音机爱 好者资料库2SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.Fig. A. Using an AC voltmeter to check AC leakage.SAFETY CHECK-OUTAfter correcting the original service problem, perform the followingsafety 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 asdescribed 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 a VOMor battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog meters must have an accurate low-voltage scale. TheSimpson 250 and Sanwa SH-63Trd are examples of a passiveVOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig. A)ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICESSONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT.NE REMPLACER CES COMPOSANTS QUE PAR DES PICESSONY DONT LES NUMROS SONT DONNS DANS CE MANUELOU DANS LES SUPPLMENTS PUBLIS PAR SONY.Super Audio CD/DVD systemLaserSemiconductor laser(Super Audio CD/DVD: = 650 nm)(CD: = 780 nm)Emission duration: continuousSignal format systemNTSCFM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning range87.5 108.0 MHz (100 kHz step)AntennaFM wire antennaAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzAM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning range530 1,710 kHz (with the interval set at 10 kHz)531 1,710 kHz (with the interval set at 9 kHz)AntennaLoop antennaIntermediate frequency450 kHzVideo sectionInputsVideo: 1 Vp-p 75 ohmsS-video:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsOutputsVideo: 1 Vp-p 75 ohmsS-video:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsComponent:Y: 1 Vp-p 75 ohmsPB/CB: 0.65 Vp-pPR/CR: 0.65 Vp-pGeneralPower requirements120 V AC, 60 HzPower consumption180 W1 W(at the Power Saving Mode)Dimensions (approx.)430 136 448 mm (17 5 3/8 17 3/4 inches) (w/h/d)incl. projecting partsMass (approx.)9.7 kg (21 lb. 7 oz.)Operating temperature5 C to 35 C (41 F to 95 F)Operating humidity5 % to 90 %Supplied accessoriesAM loop antenna (1)FM wire antenna (1)S Video cord (1)Remote Commander (remote) RM-CL700M (1)R6 (size AA) batteries (2)Operating instructions (1)Design and specifications are subject to change without notice.AVD-C700ES1.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundRadioFans.CN 收音机爱 好者资料库3AVD-C700ESNotes 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 270C duringrepairing. 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.Unleaded solderBoards requiring use of unleaded solder are printed with the leadfree 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 to about350 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) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc. Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder may alsobe added to ordinary solder.NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.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 focused onthe 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.DISC TRAY LOCKThe disc tray lock function for the antitheft of an demonstrationdisc in the store is equipped.Releasing Procedure:1. Press two buttons of FUNCTION and PREVsimultaneously.2. The message “UNLOCKED” is displayed and the tray isunlocked.Note:When “LOCKED” is displayed, the tray lock is not releasedby turning power on/off with the POWER button.Ver 1.1LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “DVD section adjustment” andcheck that the S curve waveforms is output three times.NOTE OF REPLACING THE MB BOARDWhen replacing the MB board, since the adjustment value is not setup correctly, “Drive Auto Adjustment” cant be performed.In this case, initialize Memory in the following procedures.Procedure:1. Set the test mode. (See page 20)2. Press the 2 key of the remote commander, and set the “DRIVEMANUAL OPERATION”. (See page 23)3. Press the 6 key of the remote commander, and set the “2-6,Memory Check”. (See page 25)4. Press the CLEAR key of the remote commander, and initializeMemory.4TABLE OF CONTENTS1. SERVICING NOTES. 52. GENERALLocation of Controls. 83. DISASSEMBLY. 113-1. Case . 123-2. Front Panel Assy . 123-3. Video I/O Board . 133-4. Amp Board . 133-5. DC Fan (FAN901), MB Board . 143-6. Sub Chassis Section . 143-7. Back Panel Section. 153-8. CD Mechanism Deck . 153-9. Table Assy . 163-10. SE-130 Board . 173-11. DC Motor (M901) . 183-12. Pick-up Unit Section . 183-13. RF Board . 194. TEST MODE. 205. ELECTRICAL ADJUSTMENTS. 296. DIAGRAMS6-1. IC Pin Function Description . 306-2. Circuit Boards Location . 516-3. Note for Printed Wiring Boards and Schematic Diagrams. 526-4. Waveforms. 536-5. Printed Wiring Board RF Section . 546-6. Schematic Diagram RF Section . 556-7. Printed Wiring Boards Loading Section . 566-8. Schematic Diagram Loading Section. 576-9. Printed Wiring Board Link Section. 586-10. Schematic Diagram Link Section. 596-11. Printed Wiring Board MB Section . 606-12. Schematic Diagram MB Section (1/12) . 626-13. Schematic Diagram MB Section (2/12) . 636-14. Schematic Diagram MB Section (3/12) . 646-15. Schematic Diagram MB Section (4/12) . 656-16. Schematic Diagram MB Section (5/12) . 666-17. Schematic Diagram MB Section (6/12) . 676-18. Schematic Diagram MB Section (7/12) . 686-19. Schematic Diagram MB Section (8/12) . 696-20. Schematic Diagram MB Section (9/12) . 706-21. Schematic Diagram MB Section (10/12) . 716-22. Schematic Diagram MB Section (11/12) . 726-23. Schematic Diagram MB Section (12/12) . 736-24. Printed Wiring Board Amp Section . 746-25. Schematic Diagram Amp Section (1/4) . 766-26. Schematic Diagram Amp Section (2/4) . 776-27. Schematic Diagram Amp Section (3/4) . 786-28. Schematic Diagram Amp Section (4/4) . 796-29. Printed Wiring Board Audio I/O Section . 806-30. Schematic Diagram Audio I/O Section. 826-31. Schematic Diagram Video I/O Section . 836-32. Printed Wiring Board Video I/O Section . 846-33. Printed Wiring Boards Panel Section . 866-34. Schematic Diagram Panel Section . 876-35. Printed Wiring Boards Power Section. 886-36. Schematic Diagram Power Section . 906-37. IC Block Diagrams. 917. EXPLODED VIEWS7-1. Case Section . 1047-2. Front Panel Section . 1057-3. Boards Section . 1067-4. Back Panel Section.1077-5. CD Mechanism Section (1). 1087-6. CD Mechanism Section (2). 1098. ELECTRICAL PARTS LIST.110AVD-C700ES5AVD-C700ESSECTION 1SERVICING NOTES SERVICING POSITION1. SERVICING POSITION OF AMP BOARD2. SERVICING POSITION OF MB BOARDAMP boardCN1006J-2501-103-AJ-2501-243-AMB board6AVD-C700ES3. SERVICING POSITION OF POWER BOARD Please perform after discharge electricity of C916 that check of power board.4. SERVICING POSITION OF FRONT PANELC916POWER boardJ-2501-245-Afront panel7AVD-C700ES5. SERVICING POSITION OF CDMLINK boardVer 1.16. DECISION TO PASS OR FAIL OF THE OPTICAL PICK-UP BLOCKoscilloscope+MB boardCN1013 pin 1CN1013 pin 3CD : 1.05 0.2 Vp-pVOLT/DIV : 200 mV TIME/DIV : 500 nSDVD : 1.09 0.2 Vp-pRF signal waveform MB BOARD (SIDE A) CN101317Connection:Procedure:1. Connect an oscilloscope to test point 1 pin and 3 pin ofCN1013 on the MB board.2. Turn the power on.3. Put the disc (LUV-P01) (Part No.: 4-999-032-01) (CD) in toplayback.4. Confirm that oscilloscope waveform is clear and check RFsignal level is correct or not.5. Put the disc (TDV-520CSO) (Part No.: J-2501-236-A) (DVD)in to playback.6. Perform Comfirmation in the same manner as step 4.Note: A clear RF signal waveform means that the shape “” can be clearlydistinguished at the center of the waveform.Checking Location:8AVD-C700ESSECTION 2GENERALThis section is extractedfrom instruction manual. LOCATION OF CONTROLS9AVD-C700ES10AVD-C700ES11AVD-C700ESSECTION 3DISASSEMBLYNote: This set can be disassemble according to the following sequence.3-1.CASE(Page 12)3-2.FRONT PANEL ASSY(Page 12)SET3-6.SUB CHASSIS SECTION(Page 14)3-3.VIDEO I/O BOARD(Page 13)3-4.AMP BOARD(Page 13)3-8.CD MECHANISM DECK(Page 15)3-9.TABLE ASSY(Page 16)3-10. SE-130 BOARD(Page 17)3-5.DC FAN(FAN901,MB BOARD(Page 14)3-7.BACK PANEL SECTION(Page 15)3-11. DC MOTOR (M901)(Page 18)3-12. PICK-UP UNIT SECTION(Page 18)3-13. RF BOARD(Page 19)12AVD-C700ESNote: Follow the disassembly procedure in the numerical order given.3-1. CASE3-2. FRONT PANEL ASSY1two screws(flat head screw)2two screws(flat head screw)3three screws(flat head screw)4case6four screws(+BVTP 3x8)9front panel assy4screw(+BVTP 3x8)5screw(+BVTP 3x8)1CNP9042CNP9058CN90073CN100413AVD-C700ES3-3. VIDEO I/O BOARD3-4. AMP BOARD3six screws(+BVTP 3x8)4VIDEO I/O board1CN2022CN10071 CN10060 AMP board2 CN3015 TM4006 TM4013 CN3098two screws(+BVTP 3x8)9seven screws(+BVTP 3x8)4two screws(+BVTP 3x8)7three screws(+BVTP 3x8)14AVD-C700ES3-5. DC FAN (FAN901), MB BOARD3-6. SUB CHASSIS SECTION1 CN10025 CN10016 CN1008qa heat sinkqd MB board7 CN10128 CN10053two screws(+B 3x8)4DC FAN2two screws(+B 3x8)9two screws(+BVTP 3x8)qstwo screws(+BVTP 3x8)0screw(+BVTP 3x8)6 sub chassis section2two screws(+BVTP 3x8)1five screws(+BVTP 3x8)3two screws(+BVTP 3x8)4two screws(+BVTP 3x8)5two screws(+BVTP 3x8)15AVD-C700ES3-7. BACK PANEL SECTION3-8. CD MECHANISM DECK4 back panel section1 PC board holder2four screws(+BVTP 3x8)3 screw(+BVTP 3x8)1 Turn the gear (shaft) in the direction of the arrow.3CN0014CN70427loading (panel)gear (shaft)8CD mechanism deck (CDM79-DVBU22)5two screws(+BVTP 3x8)6two screws(+BVTP 3x8)16AVD-C700ES3-9. TABLE ASSY1floating screw (+PTPWH M2.6)2tray6plate (guide)5clawqatable assy8claw39plate (guide)0flat type wire (6 core) (CN002)4screw(+BTP 2.6x8)7screw(+BTP 2.6x8)17AVD-C700ES3-10. SE-130 BOARD3claw6SE-130 board2claw0TD beltqaTD unit assytable assy9TD motor assy5flat type wire (6 core) (CN101)1connector (CN102)4two screws(+BTP 2.6x8)7two screws(+BTP 2.6x8)8two screws(+P 3x3)18AVD-C700ES3-11. DC MOTOR (M901)3-12. PICK-UP UNIT SECTION5connector (CN004)3belt (loading)2 gear (loading A)6 DC motor (M901)1screw(+PTPWH M2.6)4two screws(+P 2.6x4)1two screws(+BV B3)2chuck assy3screw(+PTPWH M2.6)4gear (chuck)6two claws8pick-up unit section7519AVD-C700ES3-13. RF BOARD3flexible flat cable (24 core) (CN001)4flexible flat cable (9 core) (CN003)2claw 5RF board6three step screws (M)7three insulators8pick-up unit9holder (BU) assy1two screws(+BTP 2.6x10)20AVD-C700ESSECTION 4TEST MODETransfer Mode1.Press the POWER button to turn the set on.2.Press the buttons of x and DISC4 simulaneously for fiveseconds.3.The message “MECHA LOCK” displayed.4.To exit from this mode, press the POWER button to turn theset off.Jog Volume Mode* Master Volume Check.Procedure:1.Press the POWER button to turn the set on.2.To enter the test mode, press the three buttons X , A.F.D andZ simultaneously.3.The message “JOG 0” is displayed.4.“JOG 0” value increases like +1, +2, +3 . if rotating theVOLUME knob clockwise, or it decreases like -1, -2, -3, . ifrotating counter-clockwise.5.To exit from this mode, press the POWER button to turn theset off.Key Check Mode* Keyboard check.Procedure:1.Press the POWER button to turn the set on.2.To enter the test mode, press three buttons X , PRESET and Z simultaneously.3.In the key check mode, the fluorecent indicator displays“KEYNUM 0”. Each time a button (without the POWERbutton) is pressed, “KEYNUM 0” value increases. However,once a button is pressed, it is no longer taken into account.4.To exit from this mode, press the POWER button to turn theset off.Display Test Mod