Sony-AVDS50-rec-sm 维修电路原理图.pdf

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1、1Model Name Using Similar MechanismNEWMechanism TypeCDM66D-DVBU15Base Unit NameDVBU15Optical Pick-up NameTDP022WSERVICE MANUALUS ModelCanadian ModelAVD-S50ESAEP ModelUK ModelAVD-S50AVD-S50/S50ESSUPER AUDIO CD/DVD RECEIVERSPECIFICATIONSAUDIO POWER SPECIFICATIONS (AVD-S50ES)POWER OUTPUT AND TOTAL HARM

2、ONIC DISTORTION:With 6 ohm loads, both channels driven, from 20 20,000 Hz; rated100 watts per channel minimum RMS power, with no more than 0.7 %total harmonic distortion from 250 milliwatts to rated output.Amplifier sectionStereo mode100 W + 100 W (6 ohms, 20 20,000 Hz, THD 0.7 %)Surround modeFront:

3、 100 W + 100 WCenter*: 100 WRear*: 100 W + 100 W (6 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:Sensitibity: DIGITAL IN COAXIAL:S

4、ensitibity: 0.5 VImpedance: 75 ohmsOutputs (Analog)ANALOG OUT:Voltage: 2 VImpedance: 1 kilohmsSUBWOOFER ANALOG OUT:Voltage: 3 VImpedance: 47 kilohmsPHONES:Accepts low- and high-impedance headphonesOutputs (Digital)DIGITAL OUT OPTICALSensitibity: Continued on next page Ver 1.1 2002. 09Sony Corporatio

5、nHome Audio CompanyPublished by Sony Engineering Corporation9-874-154-022002I0400-1 2002. 09RadioFans.CN 收音机爱 好者资料库2Super Audio CD/DVD systemLaserSemiconductor laser(Super Audio CD/DVD: = 650 nm)(CD: = 780 nm)Emission duration: continuousSignal format systemAVD-S50: PALAVD-S50ES: NTSCFrequency respo

6、nse (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 dB (VIDEO 1 (AUDIO) connectors only)Harmonic distortionLess than 0.03 %FM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning range87.5 108.0 MHz (100 kHz step)An

7、tennaFM wire antennaAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzAM tuner sectionSystemPLL quartz-locked digital synthesizer systemTuning rangeAVD-S50ES:530 1,710 kHz (with the interval set at 10 kHz)531 1,710 kHz (with the interval set at 9 kHz)AVD-S50:531 1,710 kHz (with the i

8、nterval set at 9 kHz)AntennaLoop antennaIntermediate frequency450 kHzVideo section (AVD-S50ES)InputsS-video:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsOutputsS-video:Y: 1 Vp-p 75 ohmsC: 0.286 Vp-p 75 ohmsVideo section (EURO AV) (AVD-S50)InputVideo: 1 Vp-p 75 ohmsOutputVideo: 1 Vp-p 75 ohmsGeneralPower re

9、quirementsAVD-S50ES: 120 V AC, 60 HzAVD-S50: 230 V AC, 50/60 HzPower consumption180 W1.5 W(at the Power Saving Mode)Dimensions (approx.)430 98 453 mm (17 3 7/8 17 7/8 inches) (w/h/d)incl. projecting partsMass (approx.)7.5 kg (16 lb. 9 oz.)Operating temperature5 C to 35 C (41 F to 95 F)Operating humi

10、dity5 % to 90 %Design and specifications are subject to change without notice.AVD-S50/S50ESSELF DIAGNOSIS FUNCTIONRadioFans.CN 收音机爱 好者资料库3SAFETY-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 OPE

11、RATION.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

12、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 h

13、aving 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.

14、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 exampl

15、es 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 SCU

16、RIT DE FONCTIONNEMENT.NE REMPLACER CES COMPOSANTS QUE PAR DES PICESSONY DONT LES NUMROS SONT DONNS DANS CE MANUELOU DANS LES SUPPLMENTS PUBLIS PAR SONY.AVD-S50/S50ESNotes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may b

17、e 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.CAUTIONU

18、se of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.1.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundUS, Canadian modelAEP, UK model4TABLE OF CONTENTSSELF DIAGNOSIS FUNCTION.21. SERVICING NOTES.

19、52. GENERALLocation of Controls. 63. DISASSEMBLY. 103-1. Case . 103-2. Loading Panel Assy. 113-3. Front Panel Assy . 113-4. Back Panel Assy, Power Sw Board . 123-5. Digital Amp Board, Power Board, DVD Board . 123-6. Mechanism Deck. 133-7. Pick-up Unit . 133-8. Belt (LD), Loading Board, Motor (L) Ass

20、y . 144. TEST MODE. 155. DIAGRAMS5-1. IC Pin Function Description . 225-2. Circuit Boards Location . 405-3. Note for Printed Wiring Boards and Schematic Diagrams. 405-4. Printed Wiring Board RF Section . 425-5. Schematic Diagram RF Section . 435-6. Printed Wiring Board DVD Section . 445-7. Schematic

21、 Diagram DVD Section (1/10). 465-8. Schematic Diagram DVD Section (2/10). 475-9. Schematic Diagram DVD Section (3/10). 485-10. Schematic Diagram DVD Section (4/10). 495-11. Schematic Diagram DVD Section (5/10). 505-12. Schematic Diagram DVD Section (6/10). 515-13. Schematic Diagram DVD Section (7/10

22、). 525-14. Schematic Diagram DVD Section (8/10). 535-15. Schematic Diagram DVD Section (9/10). 545-16. Schematic Diagram DVD Section (10/10). 555-17. Printed Wiring Board Digital Amp Section . 565-18. Schematic Diagram Digital Amp Section (1/2) . 585-19. Schematic Diagram Digital Amp Section (2/2) .

23、 595-20. Printed Wiring Board Video Section. 605-21. Schematic Diagram Video Section. 615-22. Printed Wiring Board RGB Section . 625-23. Schematic Diagram RGB Section. 635-24. Printed Wiring Boards In/Out Section . 645-25. Schematic Diagram In/Out Section. 655-26. Printed Wiring Boards Display Secti

24、on . 665-27. Schematic Diagram Display Section. 675-28. Printed Wiring Board Speaker Section . 685-29. Schematic Diagram Speaker Section . 695-30. Printed Wiring Boards Power Section. 705-31. Schematic Diagram Power Section . 715-32. IC Block Diagrams. 726. EXPLODED VIEWS6-1. Case Section . 816-2. F

25、ront Panel Section . 826-3. Chassis Section . 836-4. Back Panel Section. 846-5. CD Mechanism Deck Section . 856-6. Base Unit Section. 867. ELECTRICAL PARTS LIST.87AVD-S50/S50ES5AVD-S50/S50ESSECTION 1SERVICING NOTESNOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical

26、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 therepai

27、r 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 em

28、is-sion, observe from more than 30 cm away from the objective lens.6AVD-S50/S50ESSECTION 2GENERALThis section is extractedfrom instruction manual.LOCATION OF CONTROLS7AVD-S50/S50ESAVD-S50:AVD-S50ES:8AVD-S50/S50ES9AVD-S50/S50ES10AVD-S50/S50ESNote: Follow the disassembly procedure in the numerical ord

29、er given.3-1. CASESECTION 3DISASSEMBLYNote: This set can be disassemble according to the following sequence.3-1.CASE(Page 10)3-2.LOADING PANEL ASSY(Page 11)SET3-4.BACK PANEL ASSY,POWER SW BOARD(Page 12)3-5.DIGITAL AMP BOARD,POWER BOARD,DVD BOARD(Page 12)3-3.FRONT PANEL ASSY(Page 11)3-6.MECHANISM DEC

30、K(Page 13)3-7.PICK-UP UNIT(Page 13)3-8.BELT (LD),LOADING BOARD,MOTOR (L) ASSY(Page 14)1two screws(flat head screw)2two screws(flat head screw)3three screws(flat head screw)4case11AVD-S50/S50ES3-3. FRONT PANEL ASSY3-2. LOADING PANEL ASSY BOTTOM VIEW 1tapering driver24loading panel assyloading panel a

31、ssy3two clawsNote:When the power supply does not turn on, rotate the cam with tepering driver (3 mm) as the figure shows, and the loading panel assy will be moved.4five screws(screw (BV/RING)5front panel assy3two screws(BVTP 3x8)2push switchtwo clawstwo claws1CN00912AVD-S50/S50ES3-4. BACK PANEL ASSY

32、, POWER SW BOARD3-5. DIGITAL AMP BOARD, POWER BOARD, DVD BOARDqfback panel assy6five screws(BVTP 3x8)7two screws(BVTP 3x8)qhtwo screws(BVTP 3x8)qjPOWER SW boardqktwo screws(BVTP 3x8)1CN0032CN0024CNP9038CN3089CN3070CN306qaCN305qsCN304qdCN3125CNP905qgCNP905qlbracket3CN6035three screws(BVTP 3x8)8two sc

33、rews(BVTP 3x8)0two screws(BVTP 3x8)qhtwo screws(BVTP 3x8)qjDVD boardqsPOWER boardqathree screws(BVTP 3x8)9bracket6three screws(BVTP 3x8)7DIGITAL AMP board1CN3152CN3094CN3003CN301qfCN008qgCN401qdCN40213AVD-S50/S50ES3-6. MECHANISM DECK3-7. PICK-UP UNIT3two screws(BVTP 3x8)4two screws(BVTP 3x8)5bracket

34、6three screws(BVTP 3x8)1CN4028CN0029CD mechanism deck271floating screw(DIA. 12)4two screws(BTTP M2.6)6RF board3CN00325CN0017screw(step screw (M)9pick-up unitholder (66D)8two screws(step screw (M)14AVD-S50/S50ES3-8. BELT (LD), LOADING BOARD, MOTOR (L) ASSY7two screws(B 2.6x4)5gear (LD)6belt (LD)1claw

35、2claw0motor (L) assy9LOADING board8Removal the solders.4tray (66)315AVD-S50/S50ESSECTION 4TEST MODEGENERAL DESCRIPTIONThe Test Mode allows you to make diagnosis and adjustment easilyusing the remote commander and monitor TV. The instructions,diagnostic results, etc. are given on the on-screen displa

36、y (OSD).STARTING TEST MODE1.Press the POWER button to turn the power on, and set thefunction to DVD.2.While pressing thexand AUTO DEC button, turn theVOLUME knob clockwise to enter the test mode.3.It displays “TEST MODE” on the fluorescent indicator tube,and displays the Test Mode Menu on the monito

37、r screen asfollows. (At the bottom of the menu screen, the model nameand revision number are displayed)Test Mode Menu0. Syscon Diagnosis1. Drive Auto Adjustment2. Drive Manual Operation3. Mecha Aging4. Emergency History5. Version Information6. Video Level AdjustmentExit: POWER KeyModel :DAV-CxxxRevi

38、sion :x.xx4.To execute each function, select the desired menu and press itsnumber on the remote commander (RM-SS880J).5.To release from test mode, press the POWER button and turnthe power off.OPERATING TEST MODE0.SYSCON DIAGNOSISThe same contents as board detail check by serial interface can becheck

39、ed from the remote commander operation.On the Test Mode Menu screen, press 10/0 key on the remotecommander, and the following Check Menu will be displayed.# Syscon Diagnosis #Check Menu0. Quit1. All2. Version3. EEPROM4. SPIO5. SD Bus6. Video7. Audio0-0. QuitQuit the Syscon Diagnosis and return to th

40、e Test Mode Menu.0-1. All (All items continuous check)This menu checks all diagnostic items continuously. Normally, allitems are checked successively one after another automaticallyunless an error is found, but at a certain item that requires judgmentthrough a visual check to the result, the followi

41、ng screen is displayedfor the key entry. Example display# Syscon Diagnosis #Diag All CheckNo.2 Version2-3. ROM Check SumCheck Sum = 2320Press NEXT Key to ContinuePress PREV Key to RepeatFor the ROM Check, the check sum calculated by the Syscon isoutput, and therefore you must compare it with the spe

42、cified valuefor confirmation.Following the message, press the NEXT button to go to thenext item, or press the PREV button to repeat the sameoperation again.To quit the diagnosis and return to Check Menu screen, press theRETURN key on the remote commander to display Check Menu. Error occurredIf an er

43、ror occurred, the diagnosis is suspended and error is displayed.Press the RETURN key on the remote commander to quit thediagnosis, or press the PREV button to repeat the same checkwhere an error occurred, or press the NEXT button to continuethe check from the item next to faulty item.General Descrip

44、tion of Checking MethodSelecting 2 and subsequent items calls the submenu screen of eachitem. And selecting 2 and subsequent items executes respectivemenus and outputs the results.For the contents of each submenu, see “Check Items List” as below.Check Items List:0-2.Version0-2-1.All0-2-2.Revision0-2

45、-3.ROM Check Sum0-2-4.Model Type0-2-5.Region0-3.EEPROM Check0-3-1.Sampling Check0-3-2.Detail Check0-4.GP I/O Check0-5.SD Bus Check0-6.Video Check0-7.Audio Check0-2. Version0-2-2. RevisionThe revision number of ROM (IC204) that the program forthe DVD system processor (IC206) is stored.(4 digits hexad

46、ecimal number)0-2-3. ROM Check SumThe revision number of ROM (IC204) that the program forthe DVD system processor (IC206) is stored.0-2-4. Model TypeModel name is displayed. (DAV-C770 or DAV-C990).Ver 1.116AVD-S50/S50ES0-2-5. RegionModel destination code is displayed. (2 digits number)0-3. EEPROM Ch

47、eck0-3-1. Sampling CheckEEPROM check at every 64 words.It compares read data with write data of each address. Whenthere are discrepancies between two data, it displays error.0-3-2. Detail CheckEEPROM check at every 1 word.It compares read data with write data of each address. Whenthere are discrepan

48、cies between two data, it displays error.0-4. GP I/O CheckPull up/down setting check of the DVD system processor (IC206)pin 150, 151 and 154 (for clock setting port).0-5. SD Bus CheckSD bus data check between DVD decoder (IC701) and D-RAM(IC706).0-6. Video CheckOutput the color bars for video level

49、adjustment.0-7. Audio CheckOutput the test signal (1kHz sine wave) for 5.1 CH test.1.DRIVE AUTO ADJUSTMENTOn the Test Mode Menu screen, press the 1 key on the remotecommander, and the Adjustment Menu will be displayed.# Drive Auto Adjustment #Adjustment Menu 0. ALL 1. DVD-SL 2. CD 3. DVD-DLExit: RET

50、URNNormally, 10/0 is selected to adjust DVD (single layer), CD andDVD (dual layer) in this order. But, individual items can be adjustedfor the case where adjustment is suspended due to an error. In thismode, the adjustment can be made easily through the operationfollowing the message displayed on th