Sony-STRDB930-rec-sm 维修电路原理图.pdf

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1、STR-DB830/DB930/V929XUS ModelSTR-DB930/DB830Canadian ModelSTR-DB930AEP ModelSTR-DB930/DB830E ModelAustralian ModelSTR-DB930Chinese ModelSTR-V929XSERVICE MANUALFM STEREO FM-AM RECEIVER Continued on next page SPECIFICATIONSManufactured under license from Dolby LaboratoriesLicensing Corporation.“DOLBY”

2、 and the double-D symbol a are trademarksof Dolby Laboratories Licensing Corporation.Ver 1.1 2002. 02Sony CorporationHome Audio CompanyPublished by Sony Engineering Corporation9-928-896-122002B1600-1 2002.02AUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTAL HARMONIC DISTORTION : With 8 loads, both cha

3、nnels driven, from 20 - 20,000 Hz ; rated 110 W(STR-DB930) and 100 W (STR-DB830) per channel minimumRMS power, with no more than 0.05 % total harmonic distortionfrom 250 mW to rated output (USA model only).Amplifier sectionPOWER OUTPUTStereo modeNorth American model(8 20 Hz - 20 kHz, THD 0.05 %)STR-

4、DB930 : 110 W + 110 WSTR-DB830 : 100 W + 100 W(4 20 Hz - 20 kHz, THD 0.05 %)STR-DB930 : 100 W + 100 WSTR-DB830 : 90 W + 90 WOther model100 W + 100 W (8 DIN 1kHz)100 W + 100 W (4 DIN 1kHz)90 W + 90 W (8 20Hz-20kHz,thd0.05%)90 W + 90 W (4 20Hz-20kHz,thd0.05%)Surround modeNorth American model(8 20 Hz -

5、 20 kHz, THD 0.09 %)STR-DB930 : Front: 110 W + 110 WCentera): 110 WReara): 110 W + 110 WSTR-DB830 : Front: 100 W + 100 WCentera): 100 WReara): 100 W + 100 W(4 20 Hz - 20 kHz, THD 0.09 %)STR-DB930 : Front: 100 W + 100 WCentera): 100 WReara): 100 W + 100 WSTR-DB830 : Front: 90 W + 90 WCentera): 90 WRe

6、ara): 90 W + 90 WOther model(8 20 Hz - 20 kHz, THD 0.09 %)Front: 90 W + 90 WCentera): 90 WReara): 90 W + 90 W(4 20 Hz - 20 kHz, THD 0.05 %)Front: 90 W + 90 WCentera): 90 WReara): 90 W + 90 Wa) Depending on the sound field settings and the source, there may be nosound output.Dynamic power outputSTR-D

7、B930 : 165 W + 165 W, 8 250 W + 250 W, 4 STR-DB830 : 155 W + 155 W, 8 240 W + 240 W, 4 Frequency responsePHONO : RIAAequalization curve 0.5 dBCD, TAPE, MD/DAT, TAPE/MD, DVD/LD, TV/SAT, VIDEO1,2, andVIDEO3:10 Hz - 50 kHz + 0.5/-2dB(with sound field, equalizer, andbass boost bypassed)Inputs(Analog)PHO

8、NO :Sensitivity : 2.5 mVImpedance : 50 kS/Nb): 86 dB(A, 2.5 mVc)Photo : STR-DB930 (BLACK model)RadioFans.CN 收音机爱 好者资料库 2 5.1CH INPUT, CD, DVD/LD, TAPE,MD/DAT, TAPE/MD, TV/SAT,VIDEO 1, 2, and VIDEO 3 :Sensitivity : 150 mVImpedance : 50 kS/Nb): 96 dB(A, 150 mVc)b) INPUT SHORTc) Weighted network, input

9、 levelInput(Digital)DVD/LD (coaxial) :Sensitivity : -Impedance : 75 S/N: 100 dB(A, 20 kHz LPF)DVD/LD, TV/SAT, MD/DAT (Optical)Sensitivity : -Impedance : -S/N: 100 dB(A, 20 kHz LPF)OutputsTAPE, MD/DAT, TAPE/MD, (REC OUT); VUDEO 1, 2 (AUDIO OUT) :Voltage: 150 mVImpedance: 10 kFRONT L/R, CENTER, REAR L

10、/R, SUBWOOFER :Voltage: 2VImpedance: 1 kPHONES :Accepts low-and high-impedance headphonesBASS BOOST+6 dB at 70 HzSampling Frequency48 kHzEQBASS: 100 Hz - 1.0 kHz(21 steps)MID: 500 Hz - 5.0 kHz(21 steps)TREBLE: 1.0 kHz - 10 kHz(21 steps)Gain levels: 10 dB, 1 dB stepFM tuner sectionTuning range87.5 -

11、108.0 HzAntenna terminals75 , unbalancedSensitivityMono : 18.3 dBf, 2.2 V/75 Stereo : 38.3 dBf, 22.5 V/75 Usable sensitivity11.2 dBf, 1 V/75 S/NMono : 76 dBStereo : 70 dBHarmonic distortion at 1 kHzMono : 0.3 %Stereo : 0.5 %Separation45 dB at 1 kHzFrequency response30 Hz - 15 kHz +0.5/-2 dBSencitivi

12、ty60 dB at 400 kHzAM tuner sectionNorth American and E modelsWith 10-kHz tuning scale : 530 - 1,710 kHzd)With 9-kHz tuning scale: 531 - 1,710 kHzd)Other models531 - 1,602 kHzAntennaLoop antennaUsable sensitivity50 dB/m(at 1,000 kHz or 999 kHz)S/N54 dB(at 50 mV/m)Hermonic distortion0.5 %(50 mV/m, 400

13、 kHz)SelectivityAt 9 kHz: 35 dBAt 10 kHz : 40 dBd) You can change the AM tuning scale to 9kHz. After tuning in any AMstation, turn off the receiver. Hold down the TUNING + button and pressthe 1/u button. All preset stations will be erased when you change thetuning scale. To reset the scale to 10 kHz

14、, repeat the procedure.Video sectionInputsVideo: 1 Vp-p 75 S-video : Y : 1 Vp-p 75 C : 0.286 Vp-p 75 Outputs Video: 1 Vp-p 75 S-video : Y : 1 Vp-p 75 C : 0.286 Vp-p 75 GeneralSystem Tuner section :PLL quarts-locked digital synthesizer systemPreamplifier section :Low-noise NF type equalizerPower ampl

15、ifier section :Pure-complementary SEPPPower requirementsUSA, Canadian models120V AC, 60HzAustralian model240V AC, 50HzOther model220 230V AC 50/60HzPower consumptionSTR-DB930Canadian:400 VAOther models :290 WSTR-DB830North American models : 280 WAC outletsNorth American models : 2 switched, total 12

16、0 W/1AOther models : 1 switched, max 100 WDimensions 430 405 160.5 mm(17 16 63/8 in.)including projecting parts and controlsMass(Approx.)13 kg(28 lb 11oz)Supplied accessories FM wire antenna (1) AM loop antenna (1) Audio/video/control S connecting cord (1) CONTROL A1 connecting cord (1) FM antenna a

17、dapter (1)STR-DB930, V929X only Remote commander RM-LJ302 (remote) (1) LR6 (size-AA) alkaline batteries (3)STR-DB830 only Remote commander RM-PP402 (remote) (1) LR6 (size-AA) batteries (2)Design and specifications are subject to change without notice.MODEL IDENTIFICATION BACK PANEL MODELDB930:US mod

18、elDB930:Canadian modelDB930:Malaysia, Singapore modelsV929XDB930:Australian modelDB930:AEP modelDB830:US modelDB830:AEP modelPARTS No.4-217-716-04-217-716-14-217-716-24-217-716-34-217-716-44-217-716-54-217-716-64-217-716-7PART NO.RadioFans.CN 收音机爱 好者资料库 3 SAFETY-RELATED COMPONENT WARNING!COMPONENTS

19、IDENTIFIED BY MARK ! OR DOTTED LINE WITHMARK ! 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.ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES

20、 COMPOSANTS IDENTIFS PAR UNE MARQUE ! 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.TABLE OF CONTENTSSAFETY CHECK-OUT(

21、US model only) 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

22、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 microampers).Leakage current can be measured by any one of three methods.1.A commercial leakage tester, such as the Simpson 229 or R

23、CAWT-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

24、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)Earth GroundACvoltmeter(0.75V)1.5k0.15FFig. A. Using an A

25、C voltmeter to check AC leakage.To Exposed Metal Parts on Set1. GENERAL 42. SERVICEING NOTE 63. TEST MODE 64. DIAGRAMS4-1.Block Diagram Main Section 74-2.Block Diagram Power Section 94-3.Circuit Board Location 114-4.Schematic Diagram Digital Section(1/3) 134-5.Schematic Diagram Digital Section(2/3)

26、154-6.Schematic Diagram Digital Section(3/3) 174-7.Printed Wiring Board Digital Section(1/2) 194-8.Printed Wiring Board Digital Section(2/2) 214-9.Printed Wiring Board Display Section 234-10. Schematic Diagram Display Section 254-11. Printed Wiring Board Speaker Switch Section274-12. Schematic Diagr

27、am Speaker Switch Section 294-13. Printed Wiring Board Rear AMP Section314-14. Schematic Diagram Rear AMP Section 334-15. Printed Wiring Board Power Section 354-16. Schematic Diagram Power Section 374-17. Printed Wiring Board Video Section 394-18. Schematic Diagram Video Section 414-19. Printed Wiri

28、ng Board Main Section 434-20. Schematic Diagram Main Section(1/2) 454-21. Schematic Diagram Main Section(2/2) 474-22. IC Pin Function 494-23. IC Block Diagrams585. EXPLODED VIEWS5-1.Front Panel Section 625-2.Chassis Section 646. ELECTRICAL PARTS LIST66 4 SECTION 1GENERALIdentifying the PartsFront Pa

29、nel11/u switch2FUNCTION controlMODE button3INPUT MODE button45.1CH INPUT button5MASTER VOLUME control6MUTING button7SLEEP button (EXCEPT AEP)RDS PTY button (AEP model)8SPEAKERS selectorPHONES jack9DOOR OPEN button0DIMMER button!DISPLAY button!A.F.D button/indicatorMODE button/indicator2CH button/ind

30、icator!MULTI CHANNEL DECODING indicator!BASS BOOST button!EQUALIZER button!TEST TONE button (EXCEPT AEP)RDS EON button (AEP model)!PRESET TUNING +/- buttonsSHIFT buttonFM/AM button!TUNNIG +/- buttonsFM MODE buttonMEMORY button!LEVEL buttonSUR buttonEQ buttonCursor buttons ()Jog dialSET UP buttonNAME

31、 buttonENTER button 5 6 SECTION 3TEST MODEFLUORESCENT INDICATOR TUBE TEST MODE* All fluorescent segments are tested. When this test is activated,all segments turn on at the same time, then each segment turns onone after another.* Procedure:While depressing the ENTER, the LEVEL and the EQ buttonssimu

32、ltaneously, press the power 1/u button to turn on the mainpower. All segments turn on at the same time, then each segmentturns on press the ENTER button.FACTORY SET MODE* All preset contents are reset to the default setting.* Procedure:While depressing the SET UP, the LEVEL and the ENTER buttonssimu

33、ltaneously, press the power 1/u button to turn on the mainpower. The message Factry Set appears and the present contentsare reset to the default values.ALL CLEAR MODE* All preset contents are cleared when this mode is activated. Usethis mode before returning the product to clients upon completionof

34、repair.* Procedure:While depressing the SET UP button simultaneously, press thepower 1/u button to turn on the main power. The machine entersthe DEMO mode.DEMO mode: Wait a while, then thedemonstration starts. If the power 1/u button is pressed oftenthe demonstration has started, the power is turned

35、 off, and thedemonstration resumes if the power 1/u button is pressed again.ALL CLEAR mode; If the power 1/u button is pressed oftenthe machine enters the DEMO mode, but before the demonstrationstarts, the display is turned off. Press 1/u again. No response isreturned. The press 1/u again. The prese

36、t data is cleared andthe machine enters the normal power-on state.SOUND FIELD CLEAR MODE* The preset sound field is cleared when this mode is activated.Use this mode before returning the product to clients uponcompletion of repair.* Procedure:While depressing the SOUND FIELD MODE button, press thepo

37、wer 1/u button to turn on the main power. The message S.FInitialize appears and initialization is performed.AM CHANNEL STEP 9 kHz/10 kHzSELECTION MODE (US,Canadian Model)* Either the 9 kHz step or 10 kHz step can be selected for the AMchannel step.* Procedure:Set the FUNCTION to AM. Turn off the mai

38、n power.While depressing the TUNING+ button or the PRESET TUNING+ button, press the power 1/u button to turn on the main power.Either the message AM 9kHz Step or AM 10kHz Step appears.Select the desired step.DSP TEST MODE* It tests whether the DSP works correctly or not. When the DSPtest is activate

39、d, the test data is output from the DSP (IC1401:CXD2712R) of the DIGITAL board and is written in the RAM(IC1402: IDT71V016S). When the test data is read from the RAMby the DSP, the data output must be equivalent to the originaldata. If they disagree, an error is triggered. Errors can be causedby the

40、 broken data line or defective soldering.* ProcedureWhile pressing the SETUP, LEVEL and SUR buttons, press thePOWER button to enter the DSP test mode. The message DSPTEST MODE appears. When an error occurs, the message DSP2ERROR is displayed. When there is no error, the message DSP2NO ERROR appears

41、and the 1 kHz signal is output to all channels.Then, the mode can be switched the (SIGN WAVE) (THROUGH)and (INPULSE) mode.AUTOBETICAL MODE (AEP Model only)* This mode is installed in the Europe models only. When this modeis used, the receiver scans the broadcasts that can be received bytuner, and se

42、ts up the broadcasts. Be sure to start scanning afterconnecting the antenna.Procedure:Check that the antenna is connected. Press the POWER buttonwhile pressing the MEMORY button to turn on the power. Themessage “Autobetical select” appears and scanning starts by tuner.VERSION MODE* When this mode is

43、 used, the microprocessor version number isdisplayed.* Procedure:Press the POWER button while pressing the ENTER, LEVEL,and SUR buttons to turn on the power. The microprocessor versionnumber appears as follows.SECTION 2SERVICING NOTE1. When the front panel is removed, the VR board is removed at thes

44、ame time. Consequently the LEDs cannot be turned on and thesound volume cannot be increased or decreased from the remotecontrol.2. When servicing the DIGITAL board, be sure to connect the earthland of the DIGITAL board with the chassis frame so that theearth potential of the DIGITAL board must not b

45、e floated fromthe chassis frame.Rear Panel123456780!?9!?!?!?!?!?!?!?!?1ANTENNA2SIGNAL GND3DIGITAL45-1 CH INPUT5SPEAKERS (FRONT)6SPEAKERS (REAR)7SPEAKERS (CENTER)8PREOUT9IMPEDANCE SELECTOR!AC OUTLET!AC power cord!S-LINK!2ND AUDIO OUT!VIDEO 1!VIDEO 2!DVD/LD!TV/SAT!TAPE!MD/DATCDPHONOMONITORSTR-DB830/DB

46、930/V929X 7 8 SECTION 4DIAGRAMSL58DATAFMAMFM75AMDOTUNEDT. MUTESTEREODATACLKCEL OUTR OUTTUNER UNITDOTUNEDMUTINGSTEREOS DATAS CLKS LATR CH: FM: CD Signal Path RCH is omittedPHONOLCDJ301LINPUTLOUTPUTJ302J001DAT/MDM OUT1J201MONITORJ202J203TV/LDDVDVIDEO 2VIDEO 1V1 IN13V1 OUT15V2 IN9V2 OUT11TV3 LD58VEE16V

47、CC14SW110SW24SW36SW432VIDEO SELECTIC201-5VREGIC202-15V+5V43286115912CONTROLCE16CLK14DI15AUDIO SELECTIC301MUTEQ1502S LATS CLKS DATAEQ AMPIC302MUTEQ1506IC1508MUTEQ1505VIDEO(SW1)77SYSTEMCONTROLIC201VIDEO(SW2)76VIDEO(SW3)75VIDEO(SW4)721659AUTO STOP60STEREO84TUNER MUTES DATAS CLKS LATDOTUNEDSTEREOTMUTE56

48、DATA57CLOCK55LATCHD: PHONO272624222317CONTROLCE16CLK14DI15SELECTORIC303S LATS CLKS DATA2520LTAPE (MD)INPUTLOUTPUTYV1 OVIDEO 1INPUT5151LDM OY SWITCHIC252D201VIDEO 1OUTPUTYCCC SWITCHIC251CYJ251MONITOROUTPUTJ253J252J303V1 O13151V1 IM O13V1 ICYDVD5LDLTV/DBSLJ305VIDEO2INPUTINPUTLOUTPUTLVIDEO1OUTPUTLINPUT

49、J304TM301ANTENNA414 15 13231101210LINPUTDVD/LD21IR LINKDETIC001DVD/LDIR LINKDETIC002TV/DBSIR LINKDETIC003DAT/MDIR LINKDETIC004MD/DAT(INPUT)(REC OYT)DVDCOAXIALIC00714SW110SW24SW36SW414SW110SW24SW36SW4INPUTOUTPUTINPUTINPUTOUTPUTOUTPUTDVD/LDTV/DBSINPUTUS,CANADIANMODELAEPMODEL546349SELECTSWITCHIC10057BA

50、142BAIC1006112DI108DIG IN A107DIG IN BAB110CL111CE115BY SYNC113DODIGITAL AUDIOI/F RECEIVERIC1101D IN3BP SYNC33DI36CLK38CE3716DATA13CK OUT14BCK2212.288M34ERROR35DOX350112.288MHzIC1404IC1404XI8SDIA084SDIA185SDWCK082DOLBYDIGITAL AUDIO DECODERIC130124AUDATA023AUDATA122AUDATA2D0-7SCK691SCCLKSI68CS66IC622