Sony-STRDE675-rec-sm 维修电路原理图.pdf

STR-DE675US ModelCanadian ModelAEP ModelUK ModelE ModelAustralian ModelChinese ModelSERVICE MANUALFM STEREO FM-AM RECEIVERSony CorporationAudio Entertainment GroupGeneral Engineering Dept.9-873-845-112001C1600-1 2001.3 Continued on next page SPECIFICATIONSVer 1.0 2001. 03Dolby Laboratories Licensing Corporation.“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”are trademarks of Dolby Laboratories Licensing Corporation.AUDIO POWERSPECIFICATIONSPOWER OUTPUT ANDTOTAL HARMONICDISTORTION:With 8 ohm loads, bothchannels driven, from 20 -20,000 Hz; rated 100 wattsper channel minimum RMSpower, with no more than0.09% total harmonicdistortion from 250milliwatts to rated output(USA model only).Amplifier section(8 ohms 20 Hz - 20 kHz,THD 0.09%)100 W + 100 W(8 ohms at 1 kHz, THD0.7%)Front1): 100 W/chCenter1): 100 WSurround1): 100 W/ch1) Depending on the sound field settings andsources, there may be no sound output.MULTI CH IN, CD,MD/TAPE, DVD/LD, TV/SAT,VIDEO 1*,VIDEO 2*, AUX:10 Hz - 50 kHz +0.5/2 dB (with soundfield and equalizerbypassed)Frequency responseReference Power OutputRated Power Output at Stereo modeUS, Canadian MODELSReference Power OutputRated Power Output at Stereo modeAEP, UK MODEL :(8 ohms 1 Hz, THD 0.7%)100 W + 100 W(8 ohms 1 kHz, THD 0.7%)Front : 100 W/chCenter : 100 WSurround : 100 W/chReference Power OutputRated Power Output at Stereo modeChinese MODEL :(8 ohms 1 Hz, THD 0.7%)90 W + 90 W(at 220 V AC, 50 Hz)100 W + 100 W(at 110 V AC, 50 Hz)(8 ohms 1 kHz, THD 10% at 230 V AC, 50 Hz)Front : 100 W/chCenter : 100 WSurround : 100 W/chReference Power OutputRated Power Output at Stereo modeOthers :(8 ohms 1 Hz, THD 0.7%) 100 W + 100 W(8 ohms 1 kHz, THD 10%) Front : 110 W/chCenter : 110 WSurround : 110 W/chReference Power OutputRated Power Output at Stereo mode(8 ohms 1 Hz, THD 0.7%)100 W + 100 W(at 110 V AC, 50 Hz)(8 ohms 1 kHz, THD 10% at 110 V AC, 50 Hz)Front : 100 W/chCenter : 100 WSurround : 100 W/chPhoto : GOLDRadioFans.CN 收音机爱 好者资料库2STR-DE6750.5 % (50 mV/m, 400 kHz)At 9 kHz: 35 dBAt 10 kHz: 40 dBc) You can change the AM tuning interval to 9kHz. After tuning in any AM station, turnoff the receiver. Hold down the TUNING +button and press the ?/1 button. All presetstations will be erased when you change thetuning interval. To reset the scale to 10 kHz,repeat the procedure.Video sectionVideo: 1 Vp-p 75 ohmsS-video*:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsVideo: 1 Vp-p 75 ohmsS-video*:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsGeneralTuner section:PLL quartz-locked digital synthesizer systemPreamplifier section:Low-noise NF type equalizerPower amplifier section:Pure-complementary SEPPFM tuner section87.5 - 108.0 MHz75 ohms, unbalanced10.7 MHzMono: 18.3 dBf,2.2 V/75 ohmsStereo: 38.3 dBf22.5 V/75 ohms11.2 dBf, 1 V/75 ohmsMono: 76 dBStereo: 70 dBMono: 0.3%Stereo: 0.5%45 dB at 1 kHz30 Hz - 15 kHz +0.5/2 dB60 dB at 400 kHzAM tuner sectionWith 10-kHz tuningscale: 530 - 1710 kHzc)With 9-kHz tuningscale: 531 - 1710 kHz531 - 1602 kHzc)530 - 1610 kHz (10 kHz step)c)531 - 1602 kHz (9 kHz step)c)530 - 1610 kHz (10 kHz step)531 - 1602 kHz (9 kHz step)Loop antenna450 kHz50 dB/m (at 1,000 kHz or 999 kHz)54 dB (at 50 mV/m)120 V 230 V AC, 50/60 Hz 120/220/240 V AC, 50/60 Hz110 V AC, 50/60 Hz120 V AC, 60 Hz240 V AC, 50 HzAC, 60 Hz220WIn standby condition: 1 W315 VAIn standby condition: 1 W210 WIn standby condition: 1 W220 WIn standby condition: 1 W230 WIn standby condition: 1 W1 switched, total 100 W Max1 switched, total 120 W/1A Max430 308.5 157.5 mm(14.5 10.4 5.3 in.)including projectingparts and controls7.5 kg (16 lbs. 9 oz.)Design and specifications are subjectto change without notice. FM wire antenna (1) AM loop antenna (1) R6 (size-AA) batteries (2) Remote commander RM-PP505 (remote) (1)Tuning rangeAntenna terminalsIntermediate frequencySensitivityUsable sensitivityS/NHarmonic distortion at 1 kHzSeparationFrequency responseSelectivityTuning rangeUS, Canadian MODELS :Tuning rangeOthers :Tuning rangeAEP, UK MODELS :AntennaIntermediate frequencyUsable sensitivityS/NHarmonic distortionSelectivityInputsOutputsSystemSupplied accessoriesMass (Approx.)DimensionsAC outlets US, Canadian MODELS :Power consumptionUS MODEL :Canadian MODEL :AEP, UK MODELS :Mexican MODEL :E MODEL :Others :Power requirementsUS, Canadian MODEL :AEP, UK MODELS :E MODEL :Taiwan MODEL :Mexican MODEL :Australian MODEL :MULTI CH IN, CD,DVD/LD, MD/TAPE, TV/SAT,VIDEO 1*,VIDEO 2*, AUX: Sensitivity: 250 mVImpedance: 50 kilohmsS/Na): 96 dB (A, 250 mVb)a) Input short.b) Weighted network, input level.DVD/LD (coaxial):Sensitivity: Impedance: 75 ohmsS/N: 100 dB (A, 20 kHz LPF) (Optical):Sensitivity: Impedance: S/N: 100 dB (A, 20 kHz LPF)MD/TAPE, (OUT);VIDEO 1*,VIDEO 2* (AUDIOOUT):Voltage: 250 mV,Impedance: 10 kilohmsSUB WOOFER:Voltage: 2 VImpedance: 1 kilohmsPHONES:Accepts low- andhigh-impedanceheadphones6 dBDVD/LD, TV/SAT,MD/TAPE*48 kHz (TV/SAT, MD/TAPE OPTICAL IN)96 kHz (DVD/LDOPTICAL IN,COAXIAL IN)Sampling FrequencyEQOutputsInputs (Analog)Inputs (Digital)RadioFans.CN 收音机爱 好者资料库3STR-DE675SAFETY-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. After correcting the original service problem, perform thefollowing safety 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.LEAKAGE The AC leakage from any exposed metal part to earth groundand from all exposed metal parts to any exposed metal part havinga return 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” 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)SAFETY CHECK-OUTTo Exposed Metal Parts on Set0.15 F1.5 kACVoltmeter(0.75 V)Earth GroundFig. A. Using an AC voltmeter to check AC leakage.Parts No.MODEL IDENTIFICATION BACK PANEL 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.PARTS No.4-232-251-0s4-232-251-1s4-232-251-2s4-232-251-3s4-232-251-4s4-232-251-5s4-232-251-6s4-232-251-7s4-232-251-8s4-234-509-0s4-234-509-1s4-234-509-2sMODELUS modelCanadian modelE modelAEP modelUK modelAustralian modelMalaysia, Singapore modelChinese modelTaiwan modelKorean modelMexican modelArgentina model4STR-DE675TABLE OF CONTENTS1. GENETAL 52. TEST MODE 73. DIAGRAMS3-1.Circuit Boards Location . 93-2.Block Diagrams . 10 Main Section . 10 Power Section . 113-3.Printed Wiring Board Digital Section . 123-4.Schematic Diagram Digital Section (1/3) . 133-5.Schematic Diagram Digital Section (2/3) . 143-6.Schematic Diagram Digital Section (3/3) . 153-7.Printed Wiring Board Main Section . 163-8.Schematic Diagram Main Section (1/3) . 173-9.Schematic Diagram Main Section (2/3) . 183-10. Schematic Diagram Main Section (3/3) . 193-11. Printed Wiring Board Display Section . 203-12. Schematic Diagram Display Section . 213-13. Printed Wiring Board Video Section . 223-14. Schematic Diagram Video Section . 233-15. Schematic Diagram Trans Section . 243-16. IC Block Diagrams. 253-17. IC Pin Function Description. 274. EXPLODEO VIEWS4-1.Front Panel Section . 294-2.Chassis Section. 305. ELECTRICAL PARTS LIST 325STR-DE675SECTION 1GENERALMULTI CHANNEL DECODINGINPUT MODEMUTINGVIDEO 1MD/TAPEVIDEO 2CDDVD/LDTUNERTV/SATAUXDISPLAYDIMMERPHONESSPEAKERS/ MEMORYSHIFTFM MODEFMAMEQSURRLEVELSET UPNAMEAENTERA.F.D.SOUND FIELDMULTI CH INEQUALIZERCINEMA STUDIO EXMODE2CHPRESETTUNINGTUNING+BCMASTER VOLUME+890qaqs1qdqf2 34567m1 ?/1 switchPress to turn the receiver on and off.2 DISPLAY buttonPress repeatedly to change the information on thedisplay window as follows:Index name of the component or the preset station*mFUNCTION button indication or frequency*mSound field applied to the program source* Index name appears only when you have assigned one to thecomponent or preset station (see page 41). Index name does notappear when only blank spaces have been entered, or it is thesame as the function button.* Frequency appears only when the tuner is selected.3 DIMMER buttonPress repeatedly to adjust the brightness of thedisplay. When you want to turn off the display, set inthe “DIM.RANGE” parameter in the SET UP menu(page 45).45The following buttons operate the built-in tuner. Fordetails, see “Receiving Broadcasts” starting from page 38.PRESET TUNING +/ buttonsScan all preset stations.TUNING +/- buttonsScan all the available radio stations.MEMORY buttonPress to memorize a preset station.SHIFT buttonSelects a memory page for preset stations.FM MODE button (AEP, UK, Argentina model only)If “STEREO” flashes in the display and the FM stereoreception is poor, press this button. You will not havethe stereo effect but the sound is improved.FM buttonSelects the FM band.AM buttonSelects the AM band.MULTI CHANNEL DECODING indicatorThis indicator lights up when the unit is decodingsignals recorded in a multi channel format.6 Use the CINEMA STUDIO EX buttons to enjoy theCINEMA STUDIO EX sound effects.A/B/C buttonsPress to activate the CINEMA STUDIO EX A, B or Csound field (page 29).7 Use the SOUND FIELD buttons to enjoy surroundsound. For details, see “Enjoying Surround Sound”starting from page 27.A.F.D. button / indicatorPress to set the receiver to automatically detect thetype of audio signal being input and perform properdecoding (if necessary).MODE button / indicatorPress to activate the sound field selection mode (page 28).2CH button / indicatorPress to output sound from only the front (left andright) speakers.8 INPUT MODE buttonPress to select the input mode for your digitalcomponents (DVD/LD, TV/SAT and MD/TAPE).Each press switches the input mode of the currentlyselected component.SelectToAUTOGive priority to digital signalswhen there are both digital andanalog connections. If there are nodigital signals, analog is selectedDIGITAL (OPTICAL)Specify the digital audio signalsinput to the DIGITAL OPTICALinput jacksDIGITAL (COAXIAL)Specify the digital audio signalsinput to the DIGITAL COAXIALinput jacks (DVD/LD only)ANALOGSpecify the analog audio signalsinput to the AUDIO IN (L and R)jacksNoteIf 96 kHz digital signal is input, the tone, sound field andsurround parameters do not function.9 Function buttonsPress one of the buttons to select the component youwant to use.To selectPressVCRVIDEO 1 or VIDEO 2DVD or LD playerDVD/LDTV or satellite tunerTV/SATMD or Tape deckMD/TAPECD playerCDBuilt in tunerTUNERAn audio componentAUXAfter selecting the component, turn on the componentyou selected and play the program source. After selecting VCR, DVD player, or LD player, turn on theTV and set the TVs video input to match the componentyou selected.0 MASTER VOLUME controlAfter turning on the component you selected, rotate toadjust the volume.qa MUTING buttonPress to mute the sound. MUTING appears in thedisplay when the sound is muted.qs EQUALIZER button Press to turn the equalizer on or off. The EQ indicatorin the display lights when the equalizer is turned on.When you adjust the equalizer using the EQparameters (page 36) the settings are storedautomatically and can be reproduced wherever youturn on the equalizer. The equalizer is not compatible with 96 kHz digital audiosignals and during MULTI CH IN input.z When you want to listen to an analog sourcewithout any digital processingDo the following to bypass the sound field and equalizercircuits.1 Press 2CH.2 Press EQ to turn off the EQ indicator.The result will be a sound that is highly faithful to theprogram source.qd MULTI CH IN buttonPress to enjoy the audio source connected to theMULTI CH IN jacks with the video from the selectedcomponent. Press again to cancel MULTI CH IN. When the MULTI CH IN is selected, the tone, equalizer,and sound field effects do not function.qf SPEAKERS buttonPress SPEAKERS button to ON.PHONES jackConnects headphones. When you connect the headphones, no sound will comefrom the speakers.This section is extractedfrom instruction manual.6STR-DE675MULTI CHANNEL DECODINGINPUT MODEMUTINGVIDEO 1MD/TAPEVIDEO 2CDDVD/LDTUNERTV/SATAUXDISPLAYDIMMERPHONESSPEAKERS/ MEMORYSHIFTFM MODEFMAMEQSURRLEVELSET UPNAMEAENTERA.F.D.SOUND FIELDMULTI CH INEQUALIZERCINEMA STUDIO EXMODE2CHPRESETTUNINGTUNING+BCMASTER VOLUME+w;wawsqg qhqjqk qlqg EQ buttonPress to activate the equalizer parameters (page 36).The indicator on the button lights up and you canadjust the various equalizer parameters.qh SURR buttonPress to activate the surround parameters (page 34).The indicator on the button lights up and you canadjust the various surround parameters (effect level,wall type, etc.).qj LEVEL buttonPress to activate the speaker level parameters (page35). The indicator on the button lights up and you canadjust the various speaker level parameters (frontbalance, surround balance, etc.).qk SET UP buttonPress to activate the setup mode, then use the cursorbuttons (wa) to select any of the following indications.You can then make various settings using the jog dial(ws).When you selectY ou canSpeaker typeSpecify the type of speakers.(page 17)Speaker setupSpecify the front, center,surround speaker sizes, thesurround speaker position, andwhether or not you are using asub woofer. (page 17)When you selectY ou canSpeaker DistanceSpecify the front, center, andsurround speaker distances.(page 19)MULTI CH IN video input Specify the video input to beused with the audio signals fromthe MULTI CH IN jacks. (page45)Dimmer rangeSpecify the display to turn offwhen you press the DIMMERbutton several times. (page 45)ql NAME buttonPress to activate the name function and enter namesfor preset stations and program sources (page 43).w; ENTER buttonPress to enter individual characters for the presetstation and program source names.wa Cursor buttons (/)Press to select various speaker level, surround, andequalizer parameters (etc.).ws Jog dialTurn to adjust the selected speaker level, surround,and equalizer parameters (etc.).7STR-DE675SECTION 2TEST MODEFACTORY PRESET MODE* All preset contents are reset to the default setting.* Procedure:While depressing the VIDEO 1 and the