JVC KD-LH401 service manual Removing the chassis unit See Figs.8

Page 16

3.2.4 Removing the chassis unit (See Figs.8 and 9)

Prior to performing the following procedure, remove the top cover and connector board.

(1)Remove the two suspension springs (L) and (R) attaching the chassis unit to the frame.

CAUTION:

The shape of the suspension spring (L) and (R) are dif- ferent. Handle them with care.

When reassembling, make sure that the three shafts on the underside of the chassis unit are inserted to the dampers certainly.

Chassis unit

Suspension spring (R)

Suspension spring (L)

 

 

Frame

Suspension spring (R)

Fig.8

Chassis unit

Shafts

Damper

Damper

Fig.9

Suspension spring (L)

Shaft

Damper

Frame

1-16 (No.MA063)

Image 16
Contents KD-LH401 Specification Section Precaution Grounding to prevent damage by static electricity Preventing static electricityHandling the traverse unit optical pickup Reproduction and Position of Labels Important for laser productsSection Specific Service Instructions Main body section Removing the front panel assembly See Removing the heat sink SeeRemoving the top chassis assembly See Figs.3 to ReferenceRemoving the front chassis See Figs.7 Removing the mechanism control board SeeRemoving the main board See Figs.11 Removing the CD mechanism assembly SeeTop chassis Removing the gear bracket unit See Removing the rear bracket SeeFPC guide Rear cover assembly P Removing the front board See Figs.15 toCD Mechanism section Removing the top cover See Figs.1 Removing the connector board See Figs.3 to Removing the DET switch See Figs.6 DETRemoving the chassis unit See Figs.8 Removing the clamper assembly See Figs.10 Removing the loading / feed motor assembly See Figs.12 Removing the pickup unit See Figs.14 to Reattaching the pickup unit See Figs.14 toRemoving the top plate assembly See Removing the trigger arm See Figs.19Removing the mode sw. / select lock arm See Figs.22 Reassembling the mode sw. / select lock arm See Figs.24 to ReferenceRemoving the select arm R / link plate See Figs.27 Reattaching the Select arm R / link plate See Figs.29Removing the loading roller assembly See Figs.31 to Removing the loading gear 5, 6 and 7 See Figs.35 Removing the gears See Figs.37 to Pull out the feed gearRemoving the turn table / spindle motor See Figs.41 „ Standard volume position „ Dummy loadFocus section Spindle section Feed sectionTracking section Signal processing section Maintenance of laser pickup Replacement of laser pickupANT No.MA0631-33 Victor Company of JAPAN, Limited No.MA063SCH 2004/4 ContentsCD-ROM No.SML200404 Safety precaution IC573 X571IC572 IC571Standard schematic diagrams Main amplifier sectionCD servo control section SN74AHCU04PW-XLCD & Key control section C823Printed circuit boards Main boardFront board Mecha control boardM 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 How to reset your unit Important for Laser ProductsContents Location of the Buttons Control panelIllumination Navigation for easy operations Control dial ¢ buttonsRemote controller Installing the battery Remove the battery holderReturn the battery holder Place the batteryAdjust the sound as you want. See pages 32 Current sound mode iEQ seeBasic Operations Select the sourceTo drop the volume in a moment To turn off the powerSetting the clock Adjust the hour Set the minuteTo check the clock time when the unit is Set the clock systemRadio Operations Listening to the radioSearching for a station automatically Auto search Start searching for a stationSearching for a station manually Manual search Each time you press Button, the band changes as FollowsFM station automatic preset SSM When an FM stereo broadcast is hard to receiveStart automatic preset Storing stations in memoryTune in to a station in this example, of 92.5 MHz Manual presetEach time you press the button, the band changes as follows Selecting a preset station using the preset station list Selecting a preset station directlySelect the number 1 6 for the preset station you want When receiving an AM or non FM RDS Changing the display patternStation See the following pagesWhat you can do with RDS RDS OperationsTo use Network-Tracking Reception Using TA Standby Reception PTY Stnby standby setting screen Appears on the displayUsing PTY Standby Reception To select your favorite PTY code for PTY Standby ReceptionTo set PTY Standby Reception Select one of the twenty-nine PTY codes. SeeSearching for your favorite programme To store your favorite programme typesTo store your favorite programme types, see To search for your favorite programme typeTo search for your favorite programme Other convenient RDS functions and adjustments Setting the TA volume levelAutomatic clock adjustment To activate programme search, follow the procedure belowPTY codes Same programme can be received on different frequenciesDisc Operations About MP3 and WMA discsPlaying a disc Open the control panelDisplay indications when inserting an audio To stop play and eject the discCD or a CD Text Or a WMA discs To return the control panel to its previousWhat is ImageLink? To activate ImageLink, follow the procedure belowLocating a track or a Particular portion on a discTo go to the next or previous tracks To go to a track quicklyTo select a particular track in a folder, press ¢ or 4 after selecting the folderSelecting a track and start playback Selecting a folder and start playbackSelect the number 1 6 for the folder you want to play Select the number 1 6 for the track you want to playTo play back tracks at random Random Play To play back tracks repeatedly Repeat PlayTo cancel the prohibition and unlock the disc To cancel intro scan, select Intro Off byProhibiting disc ejection To play back only intros Intro ScanWhile playing an audio CD or a CD Text disc Tag is set to OffCurrent track NumberSound Adjustments Adjusting the soundMake adjustments Select the item you want to adjustSelecting preset sound modes iEQ intelligent equalizer To adjust the input level of each source -Vol AdjPress SEL select once Available sound modesSound modes preset frequency level settings Press the number button to select the sound mode you wantTo cancel the sound mode, select Flat To exit from the sound mode selectionStoring your own sound modes 4 Make adjustments as you like Select the sound mode you want to adjustStore the adjustment you made Enter the sound adjustment modeView MeterShake OffInstall / Start the program Graphic DisplaysImport the images Retouch and edit the imagesDownloading images and animations Press M Mode after the disc is detectedPress number button 6 to show the download selection screen If you want to cancel the procedure You can assign your own names when editing a CD-RSelect highlight a file you want to download If it is OK, press number button 1 to start downloadingFile name appears, and the unit will Ask you Download OK? AgainDeleting unwanted files To delete all the stored files at a timeTime, and Movie To delete the files stored for OpeningTo delete the stored files for Picture one by one AgainActivating the graphic screen using either picture or movie Ex. When you select OpeningGraphics setting screen appears on Display Activating the downloaded images and animationsSelect a file you want Finish the setting To cancel all graphic displays, select Off in stepSelect UserMovie, UserSlide, or UserPict Select UserPictBasic Procedure AdjustOther Main Functions Ex. To change ContrastPreferred Setting Mode PSM items TA Volume Indications Selectable values/itemsPTY Stnby AF-Regn’lTo adjust the display contrast level -Contrast To show the graphics on the display -GraphicsTo select the display illumination pattern -LCD Type To turn the tag display on or off-TagTo select the external component to use -Ext Input To change the FM tuner selectivity -IF FilterTo select the amplifier gain control -Amp.Gain Set the dimmer mode as you like Setting the desired color for each source Select the source that you want toSet the display color for Press and hold SEL select for moreSelect the user color adjustment screen One of the user color adjustment screens appearsYou can adjust within the range of 00 to Creating your own color-UserWhen you select a source, the power Automatically comes on Assigning names to the sourcesTo erase the entered characters Sources Maximum number CharactersChanging the control panel angle Control panel angles changes as followsDetaching the control panel ConnectorsAttaching the control panel Playing discs CD Changer OperationsSelect the CD changer CD-CH To change the display pattern To go to a particular disc directlyTo fast-forward or reverse the track Selected disc number Current track and elapsed playing timeTo skip to the next or previous folder only for MP3 discs Selecting a disc/folder/track using the name lists Disc name list Folder name list Track name listDisplay can show only six names at a time Selected disc numberFor MP3 discs For CDs Mode Active Plays at random For MP3 discs For CDsMode Active Plays repeatedly To cancel repeat play, select Repeat Off byMode changes as follows For MP3 discs For CDs Mode ActiveExternal Component Operations Turn on the connected component and start playing the sourceWhat is DAB system? DAB Tuner OperationsSelect the DAB tuner Select the DAB band DAB1, DAB2, or DAB3Start searching for an ensemble To tune in to a particular ensemble without searchingTo stop searching before an ensemble is Storing DAB services in memory To restore the FM/AM tunerTo cancel the DRC effect, select DRC Off To select the next service To select the previous serviceService Selecting a preset service using the preset service listUsing Announcement Standby Reception What you can do more withRoad Traffic News Standby Reception TA Standby Reception For Announcement Standby ReceptionTo activate Announcement Standby Reception How Announcement Standby Reception worksAnnouncement type Travel Programmes about travelSearching for your favorite service While receiving a DAB serviceTo use Alternative Reception While receiving an FM RDS stationChanging the display pattern Troubleshooting Symptoms Causes RemediesNoise is generated Track played back is not an MP3/WMA track although it hasWma Longer readout time is Readout time varies due toAvailable characters Accented lettersGraphics CD Changer Upper case Lower caseMaintenance Handling discsSpecifications FM TunerMW Tuner LW TunerSiehe Seite Zurücksetzen des Geräts Refer to page of How to reset your unitZie de pagina met de paragraaf Het apparaat terugstellen Und Erdung ausgelegt. Verfügt Ihr Die folgenden Teile werden zusammen mitDiesem Gerät geliefert Nach ihrer Überprüfung, die Teile richtig einsetzenHinweis RemarqueFuse blows Sound is distortedAvant de commencer la connexion Vérifiez Alvorens de verbindingen tot stand tePour l’amplificateur seulement KD-LH401Oder KS-U57 *4 KD-LH401
Related manuals
Manual 77 pages 41.92 Kb