Sharp VC-H820U Manual de servicio

SERVICE MANUALDVD VIDEO PLAYERFILE NO. 810-200327DOCUMENT CREATED IN JAPAN, Jul., 2003 SD-4900

1-9Remote ControlRemote control battery installationDetach the battery cover on the rear ofthe remote control, and insert two R03(size AAA) batteries

5-13S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSC121 79092005 0CE2276F638 CAPACITOR,ELECTROLYTIC 220U SMS 16V M FM5 TP(5

5-14S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSR112 79096692 0RD0392F608 RESISTOR,FIXED CARBON FILM 39 OHM 1/6 W 5% TA2

TOSHIBA CORPORATION1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN

1-10INTRODUCTIONRear PanelDo not touch the inner pins of the jacks on the rearpanel. Electrostatic discharge may cause permanentdamage to the unit.COA

1-11ConnectionsTipszzDepending on your TV and other equipment you wishto connect, there are various ways you could connectthe player. Use only one of

1-12PREPARATIONConnections (Continued)Connecting to Optional EquipmentConnecting to an amplifier equipped with twochannel analog stereo or Dolby Pro L

1-13Before OperationGeneral ExplanationThis manual gives basic instructions for operating theDVD Player. Some DVDs require specific operation orallow

1-14Before Operation (Continued)PREPARATIONItemsTrack NumberTimeAudio ChannelSoundFunction (Press / to select desired item)Shows the current track nu

1-15Before Operation (Continued)Initial SettingsYou can set your own Personal Preferences on theplayer.Initial Settings General Operation11Press SETUP

1-16SoundDigital Audio OutputEach DVD disc has a variety of audio output options.Set the player’s Digital Audio Output according to thetype of audio s

1-17OthersThe DRC, Vocal, PBC, Auto Play, B.L.E., Pluge andDNR settings can be changed.z Press / to select the desired item and pressENTER. The setti

1-18PREPARATIONBefore Operation (Continued)Parental ControlRating Movies on DVDs may contain scenes not suitable forchildren. Therefore, discs may con

1-11-1SECTION 1SUMMARYCONTENTSOWNER’S MANUAL(SD-4900)... 1

1-19Operation with DVD and Video CDPlaying a DVD and Video CDPlayback Setup z Turn on the TV and select the video input source con-nected to the DVD p

1-20OPERATIONOperation with DVD and Video CDGeneral Features (continued)Still Picture and Frame-by-frame playback1 Press PAUSE/STEP during playback.Th

1-21Operation with DVD and Video CDGeneral Features (continued)Selecting the sound enhancement Press E.A.M. to select the sound enhancement duringplay

1-22OPERATIONOperation with DVD and Video CDDVD Audio DiscsDVD Audio is a new disc format building on the successof DVD to provide high quality, uncom

1-23Operation with Audio CD and MP3/WMA Disc Playing an Audio CD and MP3/WMA DiscThe DVD Player can play MP3/WMA formatted record-ings on CD-ROM, CD-R

1-24OPERATIONOperation with Audio CD and MP3/WMA Disc (Continued)Pause 1 Press PAUSE/STEP during playback.2 To return to playback, press PLAY or press

1-25Viewing a JPEG discThis DVD Player can play discs with JPEG files. Beforeplaying JPEG recordings, read the notes on JPEGRecordings on right.1Inser

1-26OPERATIONProgrammed Playback WMAMP3VCD1.1VCD2.0CDProgrammed Playback with Audio CDand MP3/WMA Disc The Program function enables you to store your

1-27Additional InformationScreen SaverThe screen saver picture appears when you leave theDVD Player in stop mode for about five minutes. After the Scr

1-28OPERATIONSpeaker SettingsMake the following settings for the built-in 5.1 channelsurround decoder.11Select “5.1 Speaker Setup” using the 33/44but-

1-2DVD PLAYEROWNER’S MANUALMODEL : SD-4900Before connecting, operating or adjusting this product,please read this instruction booklet carefully and co

1-29TroubleshootingCheck the following guide for the possible cause of a problem before contacting service.SymptomNo power.The power is on, butthe DVD

1-30REFERENCELanguage Code ListEnter the appropriate code number for the initial settings “Disc Audio”, “Disc Subtitle” and/or “Disc Menu” (See page 1

1-31Code AreaAD AndorraAE United Arab EmiratesAF AfghanistanAG Antigua and BarbudaAI AnguillaAL AlbaniaAM ArmeniaAN Netherlands AntillesAO AngolaAQ An

1-32REFERENCESpecificationsGeneralPower requirements AC 120V, 60 HzPower consumption 14W Dimensions (approx.) 430 X 60 X 242 mm (16.9 x 2.4 x 9.5 inch

1-33Toshiba America Consumer Products, Inc. (“TACP”) and Toshiba Hawaii, Inc. (“THI”) make the following limited warranties to origi-nal consumers for

1-34OTHERSLIMITATION OF IMPLIED WARRANTIESALL WARRANTIES IMPLIED BY THE LAW OF ANY STATEOF THE U.S.A., INCLUDING THE IMPLIED WARRANTIES OFMERCHANTABIL

1-36CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY,NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-TURER’S APPROVAL. UNAUTHORIZED M

1-37SERVICING PRECAUTIONSCAUTION : Before servicing the DVD covered by this servicedata and its supplements and addends, read and follow theSAFETY PRE

2-1SECTION 2CABINET & MAIN CHASSISCONTENTS1. EXPLODED VIEWS ...

2-2EXPLODED VIEWS1. Cabinet and Main Frame Section463463250A00463463300283280A42A49A47A48A44A43A46260261261463320463467463465452SCART&5.1CHMODELON

1-3Safety PrecautionsThis lightning flash with arrowhead symbol within anequilateral triangle is intended to alert the user tothe presence of uninsula

2. Packing Accessory SectionBATTERY808PACKING SHEET804PACKINGOPTIONAL PARTS803806820OWNER'S MANUALRF CABLE810CABLE SET ASS'Y801REMOCON900BOX

3-1SECTION 3ELECTRICALCONTENTSELECTRICAL TROUBLESHOOTING GUIDE...3-21. Power check

3-2ELECTRICAL TROUBLESHOOTING GUIDENo 5V_A .No 5.2VA.Is 5.2VA section working?Is 5.2V present at emitterof Q107?Replace Q107.Is there a DC voltage At(

3-32. System operation flowPower OnNoYesYesYesNoNoNoShow LOGOTray Closed?Tray Close to Closed positionSLED Moves to Inner PositionRecieveOPEN/ CLOSEKe

3-43. Test & debug flowTESTCheck the POWER PARTNoYesNoYesNoNoNoYesYesCheck the POWER PARTCheck the regulators or diode( D670).Check the cable conn

3-5ABRESET or Power On.Show LOGO?FlashMemory operatesproperly?Check connecti on lines between FLASH& MT1379 and the FLASH access timewhether is su

3-6BNoYesYesYesNoYesYesYesNoYesNoNoNoDoesthe SLED moveto inner side when it is atoutter positi on?Motor Driver STBYPin is High?Motor Driver STBYPin is

3-7CNoNoNoNoNoNoNoYesYesYesYesYesYesYesYesYesNoNoLaser turns on whenreading disc?LD01 or LD02 outputproperly?Check the laser power circuiton MT1336 an

3-8DYesYesNo NoYesYesYesYesYesYesYesNoNoNoNoNoFocus ON OK?Track On OK?Disc is play?EPropersignals on A, B, C,D of MT1336Check connections betweenMT133

3-9ENormalAudio outputwhen disc playback?NormalIR. VFD & Frontpannel keyfunctions?TEST ENDAudioDAC receivedcorrect data stream?NormalAudio DACout?

1-4INTRODUCTIONIMPORTANT SAFETY INSTRUCTIONSCAUTION: PLEASE READ AND OBSERVE ALL WARNINGS ANDINSTRUCTIONS IN THIS OWNER’S MANUAL AND THOSEMARKED ON TH

3-10DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL1) MT1379 main clock is at 27MHz(X501)3.8V, 27MHzFIG

3-113) RS232 waveform during procedure(Downloading)TXD(J6 PIN3)RXD(J6 PIN 2)FIG 1-34) Flash R/W enable signal during download(Downloading)FRD(IC5A1 PI

3-122. SDRAM CLOCK1) MT1379 main clock is at 27MHz(X501)(IC502,IC503 PIN 35)DCLK = 93MHz, Vp-p=2.2, Vmax=2.7VFIG 2-13. TRAY OPEN/CLOSE SIGNAL1) Tray o

3-132) Tray close waveformOPEN((CN203 PIN 3)CLOSE(CN203 PIN 2)TROPEN(IC202 PIN 1)TRCLOSE(IC202 PIN 2)FIG 3-23) Tray open waveformOPEN((CN203 PIN 3)CLO

3-144. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)FMSO(2.0V/1.4V/1.0V)(IC501 PIN 19)STBY(5V) – (IC201 PIN 50)SL+(4.7V/3.6V/1.9V)(IC202 PIN 12)SL-(

3-156. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION)MDI1(0V/180mV)(IC201 PIN 124)LD01(5.0V//3.5V)IC201 PIN 125)LD02(5.0V/3.6V)(IC201 PIN 126)F

3-16F+(IC202 PIN 9)FE(IC201 PIN 18)RFL(IC201 PIN 19)FIG 7-2 (DVD)F+(IC202 PIN 9)FE(IC201 PIN 18)RFL(IC201 PIN 19)FIG 7-3 (CD)

3-17F+(IC202 PIN 9)FE(IC201 PIN 18)RFL(IC201 PIN 19)FIG 7-4 (CD)8. FOCUS ON WAVEFORMFE(IC201 PIN 18)FOSO(IC501 PIN12)F+(IC202 PIN 9)F-(IC202 PIN 8)FIG

3-18FE(IC201 PIN 18)FOSO(IC501 PIN12)F+(IC202 PIN 9)F-(IC202 PIN 8)FIG 8-2 (CD)9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION)DMSO(1.4V/1.8V)(IC501 PI

3-1910. TRACKING CONTROL RELATED SIGNAL(System checking)TE(IC201 PIN 21)TRSO(IC501 PIN 13)T-(IC202 PIN 7)T+(IC202 PIN 6)FIG 10-1(DVD)TE(IC201 PIN 21)T

1-5Table of ContentsIntroductionSafety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 2IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . .

3-2011. RF WAVEFORMRFOP(2.3V/1.1V)(IC201 PIN 6)RFON(0.8V/2.0V)(IC201 PIN 7)FIG 11-112. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF)(IC501 PIN 153)

3-2113. MT1379 VIDEO OUTPUT WAVEFORM1) Full colorbar signal(CVBS)(IC604 PIN 23)DCLK = 93MHz, Vp-p=2.2, Vmax=2.7VFIG 13-12) Y(IC604 PIN 21)FIG 13-2

3-223) C(IC604 PIN 26)DCLK = 93MHz, Vp-p=2.2, Vmax=2.7VFIG 13-314. AUDIO OUTPUT FROM AUDIO DAC1) Audio L/RFIG 14-1(JK601 PIN 4,5)

3-232) Audio related SignalASDAT3(IC501 PIN 157)ABCK(IC501 PIN 148)ALRCK(IC501 PIN 149)ASDATA3FIG 14-2

3-24BLOCK DIAGRAMS1. Overall Block DiagramMMDISCSPINDLEMOTORLOADINGMOTORDECK MECHANISMDVD:RF0,A,B,C,DCD:RF0,A,B,C,D,E,FPICKUPDIG901FLD DISPLAYKEY Inp

3-252. Power(SMPS) Block Diagram5V_A-29VAVF+RECTIFIERLINE FILTERSWITCHING ICTRANSFEED B.REG(8V)8V5.2VAVF-RECTIFIER(FLD)RECTIFIER(9V)RECTIFIER(5.2V)LPF

3-26IC202LA6560Motor DriverDVD: A,B,C,D, RFO CD: A,B,C,D, E, F,RFOSP+, SP-M/DPICKUPX501IC501MT1379DVDPLAYERCOMBOCHIPIC201MT1336ERF SignalProcessorFOSO

3-274. MPEG & MEMORY Block DiagramIC503SDRAM16MIC505EEPROMIIC501 (MPEG + DSP )MT1379IC5A1FLASH MEMORY(8 M )IC510 (74HCT244)Voltage level shiftIC5

3-285. VIDEO & AUDIO Block DiagramIC604VIDEO 6dBAmpIC601AUDIO DAC(2CH)IC301AUDIO DAC(5.1CH)IC602(OP Amp)LPF&BufferIC302(OP Amp)LPF&BufferI

1-6INTRODUCTIONBefore UsePlayable DiscsDVD video discs(8 cm / 12 cm disc)DVD audio discs(8 cm / 12 cm disc)Video CD (VCD) (8 cm / 12 cm disc)Audio CD

3-29 3-30CIRCUIT DIAGRAMS1. POWER(SMPS) CIRCUIT DIAGRAMIMPORTANT SAFETY NOTICEWHEN SERVICING THIS CHASSIS, UNDER NO CIR-CUMSTANCES SHOULD THE ORIGINAL

3-31 3-32No Power onVideo signal notappearedVideo signal YVideo signal ColorDigitron all not displaySystem not workingSystem not working orscreen is a

3-33 3-343. RF & SERVO CIRCUIT DIAGRAMCD/DVD LDwill not on'02. 12. 26 R14601ATOSHIBA

3-35 3-364. TIMER, 5.1CH, SCART, KARAOKE CIRCUIT DIAGRAMKaraoke not operate.Digital abnormal5.1CH Audio BadPower LED abnormalRemocon not operate'

3-37 3-385. AV/JACK CIRCUIT DIAGRAMVideo Signal YVideo Signal ColorVideo Signal CVBS2CH Audio2CH Audio out bad.All Video signal isn'tappear or ba

3-39 3-40PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY1 1.03 2.99 0 0 1.22 1.22 3.27 3.28 00002 5.11 5.08 0 0 0 0 1.18 1.26 0 0 2.59

3-41 3-42PIN STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY161 0 1.27162 0 2.35163 0 0164 0 0.73165 0 3.27166 0 0.5167 0 0168 0 0.53169 0

3-43 3-44PRINTED CIRCUIT DIAGRAMS1. MAIN P.C.BOARDLOCATION GUIDE5600AD

3-45 3-462. KEY P.C.BOARD3. TIMER P.C.BOARDLOCATION GUIDE(Solder Side)(Solder Side)

3-47 3-484. SMPS P.C.BOARDLOACTION GUIDE(Solder Side)(Solder Side)5. 5.1CH P.C.BOARDLOCATION GUIDE

1-7Before Use (Continued)PrecautionsHandling the unitWhen shipping the unitThe original shipping carton and packing materialscome in handy. For maximu

DECK MECHANISM PARTSLOCATIONS• Top View...4-1• Top View(without Tray Disc) ...4-1• Bottom

4-1DECK MECHANISM PARTS LOCATIONStarting No.11, 21, 2, 31, 2, 3, 411, 61, 2, 61, 2, 6, 81, 2, 6, 8,91, 2, 71, 2, 71, 21, 2 ,131, 2, 13, 141, 2, 7, 12,

4-2DECK MECHANISM DISASSEMBLY1.Holder Clamp (Fig. 4-1)1) Release 2 Screws(S1).2) Unhook 2 Locking Tabs(L1).3) Lift up the Holder Clamp and then separa

4-3DECK MECHANISM DISASSEMBLY3.Base Assembly Sled (Fig. 4-3)1) Release 4 Screw(S2).2) Disconnect the FFC Connector(C1)3-1. Gear Assembly Feed3-2. Gear

4-4DECK MECHANISM DISASSEMBLY5. Frame Assembly Up/Down (Fig. 4-4)Put the Base Main face down(Bottom Side)1) Release the Screw(S4)2) Unlock the Locking

EXPLODED VIEWS1. Deck Mechanism Exploded View429429026010018013014017015015A011430431011A012004001002003A01A020204304304304300120214334330120120280224

5-1SECTION 5 REPLACEMENT PARTS LISTTOSHIBA MODEL : SD-4900-S-TU/SD-4900-S-TCNSP : Not avallable as service parts.RUN DATE : 27-JULY-02S AL LOCA. NO.

5-2S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSR908 79093029 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 16

1-8INTRODUCTIONFront Panel and Display WindowForward SKIP ( ) Go to NEXT chapter/track.Press and hold for two seconds for a fast forward search.Rever

5-3S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKS*** DECK ASSEMBLY ***A00 79096645 6721RH0370A DECK ASSEMBLY,VIDEO DE

5-4S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSC232 79092014 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F

5-5S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSC518 79092014 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F

5-6S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSC5A8 79092014 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F

5-7S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSC6W2 79092014 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F

5-8S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSR212 79096547 0RJ7503C677 RESISTOR,METAL GLAZED(CHIP) 750K OHM 1/16 W 5%

5-9S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSR529 79093020 0RH0000C622 RESISTOR,METAL GLAZED(CHIP) 0 OHM 1 / 16 W 1608

5-10S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSR644 79093020 0RH0000C622 RESISTOR,METAL GLAZED(CHIP) 0 OHM 1 / 16 W 160

5-11S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSC322 79097104 0CE1064F638 CAPACITOR,ELECTROLYTIC 10M SRA 16V M FM5

5-12S AL LOCA. NO. TOSHIBA PART LG PART NO. DESCRIPTION SPECIFICATION REMARKSR321 79096346 0RH1003D622 RESISTOR,METAL GLAZED(CHIP) 100K OHM 1 / 10 W