Contents, No.MA063SCH 2004/4, CD-ROM No.SML200404 | JVC KD-LH401

SCHEMATIC DIAGRAMS

CD RECEIVER

KD-LH401

CD-ROM No.SML200404

	Area suffix
E -----------	Continental Europe
EX ---------------	Central Europe

Contents

Block diagram	2-1
Standard schematic diagrams	2-2
Printed circuit boards	2-5, 6

COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD.

No.MA063SCH

2004/4

Image 35

JVC KD-LH401 service manual Contents, No.MA063SCH 2004/4, CD-ROM No.SML200404

Contents

KD-LH401 Specification Section Precaution Handling the traverse unit optical pickup Preventing static electricityGrounding to prevent damage by static electricity Important for laser products Reproduction and Position of Labels Section Specific Service Instructions Removing the heat sink See Main body section Removing the front panel assembly See Reference Removing the top chassis assembly See Figs.3 to Removing the mechanism control board See Removing the front chassis See Figs.7 Top chassis Removing the CD mechanism assembly SeeRemoving the main board See Figs.11 FPC guide Removing the rear bracket SeeRemoving the gear bracket unit See Removing the front board See Figs.15 to Rear cover assembly P CD Mechanism section Removing the top cover See Figs.1 Removing the connector board See Figs.3 to DET Removing the DET switch See Figs.6 Removing the chassis unit See Figs.8 Removing the clamper assembly See Figs.10 Removing the loading / feed motor assembly See Figs.12 Reattaching the pickup unit See Figs.14 to Removing the pickup unit See Figs.14 to Removing the trigger arm See Figs.19 Removing the top plate assembly See Removing the mode sw. / select lock arm See Figs.22 Reference Reassembling the mode sw. / select lock arm See Figs.24 to Reattaching the Select arm R / link plate See Figs.29 Removing the select arm R / link plate See Figs.27 Removing the loading roller assembly See Figs.31 to Removing the loading gear 5, 6 and 7 See Figs.35 Pull out the feed gear Removing the gears See Figs.37 to Removing the turn table / spindle motor See Figs.41 „ Dummy load „ Standard volume position Tracking section Feed sectionFocus section Spindle section Signal processing section Replacement of laser pickup Maintenance of laser pickup ANT No.MA0631-33 Victor Company of JAPAN, Limited CD-ROM No.SML200404 ContentsNo.MA063SCH 2004/4 Safety precaution IC571 IC573X571 IC572 Main amplifier section Standard schematic diagrams SN74AHCU04PW-X CD servo control section C823 LCD & Key control section Main board Printed circuit boards Mecha control board Front board M O No.MA063SCH Parts List Exploded view of general assembly and parts list Main board C32 General Assembly CD mechanism assembly and parts list CD mechanism Electrical parts list QERF1CM-226Z Capacitor Part Name Description Local R74 NRSA63J-101X Front board TA E Capacitor Micon control board NRSA63J-4R7X MG Resistor Part Name Description Local R685 NRSA63J-682X Memo Packing materials and accessories parts list Packing and Accessories KD-LH401 Important for Laser Products How to reset your unit Contents Control dial ¢ buttons Location of the ButtonsControl panel Illumination Navigation for easy operations Remote controller Place the battery Installing the batteryRemove the battery holder Return the battery holder Select the source Adjust the sound as you want. See pages 32Current sound mode iEQ see Basic Operations To turn off the power To drop the volume in a moment Set the clock system Setting the clockAdjust the hour Set the minute To check the clock time when the unit is Start searching for a station Radio OperationsListening to the radio Searching for a station automatically Auto search Each time you press Button, the band changes as Follows Searching for a station manually Manual search Storing stations in memory FM station automatic preset SSMWhen an FM stereo broadcast is hard to receive Start automatic preset Each time you press the button, the band changes as follows Manual presetTune in to a station in this example, of 92.5 MHz Select the number 1 6 for the preset station you want Selecting a preset station directlySelecting a preset station using the preset station list See the following pages When receiving an AM or non FM RDSChanging the display pattern Station To use Network-Tracking Reception RDS OperationsWhat you can do with RDS PTY Stnby standby setting screen Appears on the display Using TA Standby Reception Select one of the twenty-nine PTY codes. See Using PTY Standby ReceptionTo select your favorite PTY code for PTY Standby Reception To set PTY Standby Reception To search for your favorite programme type Searching for your favorite programmeTo store your favorite programme types To store your favorite programme types, see To search for your favorite programme To activate programme search, follow the procedure below Other convenient RDS functions and adjustmentsSetting the TA volume level Automatic clock adjustment Same programme can be received on different frequencies PTY codes Open the control panel Disc OperationsAbout MP3 and WMA discs Playing a disc To return the control panel to its previous Display indications when inserting an audioTo stop play and eject the disc CD or a CD Text Or a WMA discs To activate ImageLink, follow the procedure below What is ImageLink? To go to a track quickly Locating a track or aParticular portion on a disc To go to the next or previous tracks ¢ or 4 after selecting the folder To select a particular track in a folder, press Select the number 1 6 for the track you want to play Selecting a track and start playbackSelecting a folder and start playback Select the number 1 6 for the folder you want to play To play back tracks repeatedly Repeat Play To play back tracks at random Random Play To play back only intros Intro Scan To cancel the prohibition and unlock the discTo cancel intro scan, select Intro Off by Prohibiting disc ejection Number While playing an audio CD or a CD Text discTag is set to Off Current track Select the item you want to adjust Sound AdjustmentsAdjusting the sound Make adjustments Available sound modes Selecting preset sound modes iEQ intelligent equalizerTo adjust the input level of each source -Vol Adj Press SEL select once To exit from the sound mode selection Sound modes preset frequency level settingsPress the number button to select the sound mode you want To cancel the sound mode, select Flat Enter the sound adjustment mode Storing your own sound modes 4 Make adjustments as you likeSelect the sound mode you want to adjust Store the adjustment you made Off ViewMeter Shake Retouch and edit the images Install / Start the programGraphic Displays Import the images Press number button 6 to show the download selection screen Press M Mode after the disc is detectedDownloading images and animations You can assign your own names when editing a CD-R If you want to cancel the procedure Again Select highlight a file you want to downloadIf it is OK, press number button 1 to start downloading File name appears, and the unit will Ask you Download OK? To delete the files stored for Opening Deleting unwanted filesTo delete all the stored files at a time Time, and Movie Again To delete the stored files for Picture one by one Activating the downloaded images and animations Activating the graphic screen using either picture or movieEx. When you select Opening Graphics setting screen appears on Display Select UserPict Select a file you want Finish the settingTo cancel all graphic displays, select Off in step Select UserMovie, UserSlide, or UserPict Ex. To change Contrast Basic ProcedureAdjust Other Main Functions Preferred Setting Mode PSM items AF-Regn’l TA VolumeIndications Selectable values/items PTY Stnby To turn the tag display on or off-Tag To adjust the display contrast level -ContrastTo show the graphics on the display -Graphics To select the display illumination pattern -LCD Type To select the amplifier gain control -Amp.Gain To change the FM tuner selectivity -IF FilterTo select the external component to use -Ext Input Set the dimmer mode as you like Press and hold SEL select for more Setting the desired color for each sourceSelect the source that you want to Set the display color for Creating your own color-User Select the user color adjustment screenOne of the user color adjustment screens appears You can adjust within the range of 00 to Sources Maximum number Characters When you select a source, the power Automatically comes onAssigning names to the sources To erase the entered characters Control panel angles changes as follows Changing the control panel angle Attaching the control panel ConnectorsDetaching the control panel Select the CD changer CD-CH CD Changer OperationsPlaying discs Selected disc number Current track and elapsed playing time To change the display patternTo go to a particular disc directly To fast-forward or reverse the track To skip to the next or previous folder only for MP3 discs Selected disc number Selecting a disc/folder/track using the name listsDisc name list Folder name list Track name list Display can show only six names at a time For MP3 discs For CDs For MP3 discs For CDs Mode Active Plays at random For MP3 discs For CDs Mode Active Mode Active Plays repeatedlyTo cancel repeat play, select Repeat Off by Mode changes as follows Turn on the connected component and start playing the source External Component Operations Select the DAB band DAB1, DAB2, or DAB3 What is DAB system?DAB Tuner Operations Select the DAB tuner To stop searching before an ensemble is To tune in to a particular ensemble without searchingStart searching for an ensemble To select the next service To select the previous service Storing DAB services in memoryTo restore the FM/AM tuner To cancel the DRC effect, select DRC Off Selecting a preset service using the preset service list Service For Announcement Standby Reception Using Announcement Standby ReceptionWhat you can do more with Road Traffic News Standby Reception TA Standby Reception Travel Programmes about travel To activate Announcement Standby ReceptionHow Announcement Standby Reception works Announcement type While receiving an FM RDS station Searching for your favorite serviceWhile receiving a DAB service To use Alternative Reception Changing the display pattern Symptoms Causes Remedies Troubleshooting Longer readout time is Readout time varies due to Noise is generated Track played back is not anMP3/WMA track although it has Wma Upper case Lower case Available charactersAccented letters Graphics CD Changer Handling discs Maintenance LW Tuner SpecificationsFM Tuner MW Tuner Zie de pagina met de paragraaf Het apparaat terugstellen Refer to page of How to reset your unitSiehe Seite Zurücksetzen des Geräts Nach ihrer Überprüfung, die Teile richtig einsetzen Und Erdung ausgelegt. Verfügt IhrDie folgenden Teile werden zusammen mit Diesem Gerät geliefert Sound is distorted HinweisRemarque Fuse blows Alvorens de verbindingen tot stand te Avant de commencer la connexion Vérifiez KS-U57 *4 KD-LH401 Pour l’amplificateur seulementKD-LH401 Oder