Sony-AVDK800P-rec-sm 维修电路原理图.pdf

AVD-K800PUS ModelCanadian ModelAEP ModelUK ModelE ModelSERVICE MANUALCOMPACT AV SYSTEMSony CorporationAudio GroupPublished by Sony Engineering Corporation9-877-319-032004I16-1 2004.09Ver 1.2 2004. 09Model Name Using Similar MechanismNEWMechanism TypeCDM79-DVBU22Optical Pick-up NameDBU-1SPECIFICATIONSAUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTAL HARMONIC DISTORTION:With 6 ohm loads, both channels driven, from 120 20,000 Hz; rated 60watts per channel minimum RMS power , with no more than 0.7 % total harmonic distortion from 250 milliwatts to rated output (USA model only).Amplifier sectionRated Power Output at Stereo Mode60 W + 60 W (6 ohms, at 1 kHz, THD 0.7 %)Reference Power OutputFront: 100 W/ch (6 ohms at 1 kHz, THD 10 %)Center*: 100 W (6 ohms at 1 kHz, THD 10 %)Surround*: 100 W/ch (6 ohms at 1 kHz, THD 10 %)Sub woofer*: 100 W (6 ohms at 100 Hz, THD 10 %)* Depending on the sound field settings and the source, there may be no sound output.Inputs (Analog)ANALOG IN:Sensitivity: 500 mVImpedance: 50 kilohmsOutputs (Analog)PHONES:Accepts low- and high-impedance headphonesCD/DVD systemLaserSemiconductor laser(DVD: = 650 nm)(CD: = 780 nm)Emission duration: continuousSignal format systemNTSC/PAL or NTSCFrequency response (at 2 CH STEREO mode)DVD (PCM): 2 Hz to 22 kHz (1.0 dB)CD: 2 Hz to 20 kHz (1.0 dB)Signal-to-noise ratioMore than 80 dBHarmonic distortionLess than 0.03 %FM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning rangeNorth American models: 87.5 108.0 MHz (100 kHz step)Other models:87.5 108.0 MHz (50 kHz step)AntennaFM wire antennaAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzAM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning rangeNorth American models: 530 1,710 kHz (with the interval set at 10 kHz)531 1,710 kHz (with the interval set at 9 kHz)European models:531 1,602 kHz (with the interval set at 9 kHz)Mexican models:530 1,610 kHz (with the interval set at 10 kHz)Other models:530 1,610 kHz (with the interval set at 10 kHz)531 1,602 kHz (with the interval set at 9 kHz)AntennaAM loop antennaIntermediate frequency450 kHzVideo sectionInputsVideo:1 Vp-p 75 ohmsOutputsVideo:1 Vp-p 75 ohmsComponent: Y: 1 Vp-p 75 ohmsPB/CB: 0.7 Vp-p 75 ohmsPR/CR: 0.7 Vp-p 75 ohmsGeneralPower requirementsNorth American and Mexican models:120 V AC, 60 HzEuropean models:230 V AC, 50/60 HzOther models:120/220 V AC, 50/60 HzPower consumptionCanadian models:240 VAOther models:190 WPower consumption (at Power Saving Mode):0.5 WDimensions (approx.)430 170 450 mm (17 6 7/8 17 7/8 inches)(w/h/d) incl. projecting partsMass (approx.)11.5 kg (25 lb 6 oz.)Operating temperature5C to 35C (41F to 95F)Operating humidity5 % to 90 %Design and specifications are subject to change without notice.This system incorporates with Dolby* Digital and Dolby Pro Logic (II) adaptive matrixsurround decoder and the DTS* Digital Surround System.*Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories.* Manufactured under license from Digital Theater Systems, Inc.“DTS” and “DTS Digital Surround” are trademarks of Digital Theater Systems, Inc.AVD-K800P is the amplifier, CD/DVD and tuner system in HT-C800DP.RadioFans.CN 收音机爱 好者资料库2AVD-K800PLEAKAGEThe 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 microampers).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” indicationis 0.75 V, so analog meters must have an accurate low-voltagescale. The Simpson 250 and Sanwa SH-63Trd are examples ofa passive VOM that is suitable. Nearly all battery operateddigital multimeters that have a 2V AC range are suitable. (SeeFig. A)Fig. A. Using an AC voltmeter to check AC leakage.0.15FTo Exposed MetalParts on Set1.5kACvoltmeter(0.75V)Earth GroundCAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.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 270Cduring 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.SAFETY CHECK-OUTAfter correcting the original service problem, perform the followingsafety checks 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.Laser component in this product is capable of emitting radiationexceeding the limit for Class 1.This appliance is classified as aCLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.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 40C 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 350C.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 viscous (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 mayalso be added to ordinary solder.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LESDIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONTCRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NEREMPLACER CES COMPOSANTS QUE PAR DES PISES SONYDONT LES NUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPMENTS PUBLIS PAR SONY.The following cautionlabel is located insidethe apparatus.RadioFans.CN 收音机爱 好者资料库3AVD-K800PNOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR 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.LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “CD section adjustment” and checkthat the S curve waveform is output several times.MODEL IDENTIFICATION BACK PANEL Part No. AbbreviationE51 : Chilean and peruvian models.ModelUS and E51 modelsCanadian modelMexican modelAEP modelUK modelPARTS No.4-244-942-0s4-244-942-1s4-244-942-2s4-244-942-3s4-244-942-4sHOW TO OPEN THE DISC TRY WHEN POWER SWITCH TURNS OFF3loading (panel)2table1 Turn the gear (shaft) in the direction of the arrow.gear (shaft)hole of chassis4AVD-K800P1. GENERAL 52. DISASSEMBLY2-1. Case 72-2. Loading (PANEL) 82-3. CD Mechanism Deck (CDM79-DVBU22) 82-4. Front Panel Assy 92-5. DISPLAY Board, OPEN/CLOSE Board,POWER SWITCH Board, HP Board 92-6. Tuner Unit (TM301), I/O Board 102-7. DMB03 Board 102-8. DC Fan (FAN1) 112-9. MAIN Board 112-10.Table Assy 122-11.SE-130 Board 132-12.DC Motor (M001) 142-13.Pickup Unit Section 142-14.RF Board 153. TEST MODE 164. DIAGRAMS4-1. Circuit Board Location 254-2. Block Diagrams RF SERVO Section 26 VIDEO Section 27 AUDIO Section 28 AMP Section 29 POWER Section 304-3. Printed Wiring Board RF Section 314-4. Schematic Diagram RF Section 324-5. Printed Wiring Board DMB Section (SIDE A) 334-6. Printed Wiring Board DMB Section (SIDE B) 344-7. Schematic Diagram DMB Section (1/8) 354-8. Schematic Diagram DMB Section (2/8) 364-9. Schematic Diagram DMB Section (3/8) 374-10.Schematic Diagram DMB Section (4/8) 384-11.Schematic Diagram DMB Section (5/8) 394-12.Schematic Diagram DMB Section (6/8) 404-13.Schematic Diagram DMB Section (7/8) 414-14.Schematic Diagram DMB Section (8/8) 424-15.Printed Wiring Board I/O Section 434-16.Schematic Diagram I/O Section 444-17.Printed Wiring Board MAIN Section 454-18.Schematic Diagram MAIN Section (1/3) 464-19.Schematic Diagram MAIN Section (2/3) 474-20.Schematic Diagram MAIN Section (3/3) 484-21.Printed Wiring Board VOLTAGE SELECTOR, LOADING Section 494-22.Schematic Diagram LOADING Section 504-23.Printed Wiring Board DISPLAY Section 514-24.Schematic Diagram DISPLAY Section 524-25. IC Block Diagrams 544-26. IC Pin Function Description 615. EXPLODED VIEWS5-1. Case Section 705-2. Front Panel Section 715-3. Chassis Section 725-4. CD Mechanism Deck Section-1 (CDM79-DVBU22) 735-5. CD Mechanism Deck Section-2 (CDM79-DVBU22) 746. ELECTRICAL PARTS LIST 75Ver 1.1TABLE OF CONTENTSNOTES ON DMB03 BOARD EXCHANGEIf a DMB03 board is exchanged, “DRIVE AUTO ADJUSTMENT”may be unable to be performed. In this case, initialize a memory inthe following procedure.1. Starting Test Mode (see page 17).2. Press the 2 button of remote commander to set the DriveManual Operation (see page 19).3. Press the 6 button of remote commander to set the MemoryCheck (see page 21).4. Press the CLEAR button of remote commander to initializea memory.AUTO SERVO ADJUSTMENTAfter parts related to the servo circuit (RF amplifier (IC001), DSP(IC509), motor driver (IC501), EEPROM (IC903) so on) arereplaced, re-adjusting the servo circuit is necessary. Select “ALL”at “1. DRIVE AUTO ADJUSTMENT” (Refer to page 18 in TESTMODE) and adjust DVD-SL (single layer), CD and DVD-DL (duallayer).RFMON Level CheckPerform a RFMON level check before exchanging optical pick-up.Measurement Point: DMB03 board CN50113pin (RFMON) 29pin (AGND) RFMON signal waveform Standard valueTest DiscRFMON levelStandard ValueDVDTDV-520CSO1.09 0.2Vp-p(J-2501-236-A)CDLUV-P011.05 0.2Vp-p(4-999-032-01)VOLT/DIV: 200 mVTIME/DIV: 500 ns RFMON level5AVD-K800PSECTION 1GENERALFront Panel?/1PHONESDISC SELECTMULTI CHANNEL DECODING12345SUB WOOFER LEVELFUNCTIONPRESET+MASTERVOLUMESOUND FIELDEX-CHANGE DISC SKIPOPEN/CLOSE+1 ?/1 (power switch) (29)2 (remote sensor) (18)3 MULTI CHANNEL DECODINGindicator (49)4 Front panel display (12)5 Disc tray (29)6 EX-CHANGE (30)7 DISC SKIP (29)8 A OPEN/CLOSE (29)9 SOUND FIELD +/ (50)0 MASTER VOLUME control (29, 70)qa SUB WOOFER LEVEL (69)qs FUNCTION (29)qd PRESET +/, ./ (27, 30)qf x (stop) (30)qg S (pause) (30)qh H (play) (29)qj DISC SELECT 1 5 (29)qk PHONES jack (29)Rear PanelLRyAMAUDIO INVIDEO INFRONT RSURR RSUB WOOFERSURR L + + +FRONT LCENTERSPEAKERSVOLTAGESELECTORYTVANTENNA120V220VLRAUDIO INVIDEOMONITORCOMPONENTVIDEO OUTVIDEO OUTPR/CRPB/CB1 AM antenna terminals (22)2 FM 75 COAXIAL antenna jack (22)3 VOLTAGE SELECTOR (only forequipped models) (25)4 Ventilation holes (fan) (74)5 SPEAKERS jacks (20)6 COMPONENT VIDEO OUT jacks (24)7 MONITOR (VIDEO OUT) jack (24)8 VIDEO (AUDIO L/R IN/VIDEO IN)jacks (24)9 TV (AUDIO L/R IN) jacks (24)This section is extractedfrom instruction manual.6AVD-K800PQuick reference for Remote CommanderNoteThe remote control of the unit employs commandsignals in common with other Sony DVD products.Thus, depending on the button, other Sony DVDproducts may respond.1SOUND FIELD +/Selects the sound field.2FUNCTIONSelects the component you want to use.3ST/MONOSwitches monaural or stereo of FM stereo reception.4BANDSelects AM or FM band.5REPEATDisplays the “REPEAT” display on the TV screen.6PLAY MODESelects program or shuffle play mode.7Number buttonsSelects the items of settings.8./, PRESET +/./: Press to go to the next chapter or track orto go back to the previous chapter or track.PRESET +/ : Scan all preset stations.9X PAUSEPauses playing a disc.q;HPlays a disc.fFGgfFGgHXmMyy.FUNCTIONBANDPLAY MODE REPEATTIMEAUDIOANGLESUBTITLECLEARMEMORYD. SKIPOPEN/CLOSEST/MONOSYSTEM STANDBYSOUND FIELDTV ?/112345678910/010ENTERPRESETTOP MENU DVDALBUM+ MENUDVDMUTINGRETURNTV/VIDEODVD DISPLAYVOLUME+TUNINGSLOWx?/1OTV VOLTV CHBASSBOOSTDIMMERDVDSETUPqaDVD MENU/ALBUM +Displays the DVD menu on the TV screen.qsDVD TOP MENU/ALBUM Displays the title menu on the TV screen.qdC/X/x/c/ENTERSelects and executes the items or settings.qfDVD DISPLAYDisplays the Control Menu display on the TVscreen to set or adjust the items.qgTV VOL +/Adjust the volume of the TV.qhTV CH +/Select preset TV channels.qjTV /1 (on/standby) Turns the TV on and off.qk/1 (on/standby)Turns on and off the power of the system.qlZ OPEN/CLOSEOpens or closes the disc tray.w;MEMORYPress to store a preset station.waD.SKIPSkips discs.wsTIMEDisplays the playing time of the disc, etc., on thefront panel display.wdAUDIOChanges the sound while playing a DVD or VIDEOCD.wfANGLEChanges the angles when playing a DVD.wgSUBTITLEChanges the subtitles when playing a DVD.whENTERExecutes the items or settings.wjCLEARPress to return to the Continuous play, etc.wkm/M,/ SLOW, TUNING +/m/M (SCAN) : Locate a point while monitoringthe picture while playing disc./ (SLOW) : Play a disc in slow motion in thepause mode.TUNING +/ : Scan all available radio stations.wlx STOPStops playing a disc.e;MUTINGMutes the sound.eaVOLUME +/Adjust the SYSTEM volume.esO RETURNPress to return to the previously selected screen, etc.edTV/VIDEOChanges the input mode of the TV.efBASS BOOSTAdjust the bass tone.egDVD SETUPDisplays the setup display on the TV screen to setor adjust the items.ehDIMMERChanges the brightness of the front panel display bytwo steps.7AVD-K800PSECTION 2DISASSEMBLYNote: Follow the disassembly procedure in the numerical order given.2-1. Case The equipment can be removed using the following procedure.CASEFRONT PANEL ASSYLOADING (PANEL)DMB03 BOARDTABLE ASSYMAIN BOARDSE-130 BOARDRF BOARDDC FAN (FAN1)DC MOTO