Manuals / JVC / Car Audio and Video / Car Stereo System

JVC KD-LH401 Section Adjustment, Adjustment method „ Test instruments required for adjustment

Models: KD-LH401

1 141

Download 141 pages 24.01 Kb

Page 28

SECTION 4

SECTION 4

ADJUSTMENT

4.1Adjustment method

Test instruments required for adjustment

(1)Digital oscilloscope (100MHz)

(2)Electric voltmeter

(3)Digital tester

(4)Tracking offset meter

(5)Test Disc JVC :CTS-1000

(6)Extension cable for check EXTSH002-22P ⋅ 1

Standard volume position

Balance and Bass &Treble volume : lndication"0"

Loudness : OFF

How to connect the extension cable for adjusting

Standard measuring conditions

Power supply voltage	DC14.4V(10.5 to 16V)
Load impedance	20KΩ (2 Speakers connection)
Output Level	Line out 2.0V (Vol. MAX)

Dummy load

Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard.

Caution:

Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power. If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.

Extension cable: EXTSH002-22P

Heat sink

Rear bracket

CN501

1-28 (No.MA063)

Image 28

JVC KD-LH401 Section Adjustment, Adjustment method „ Test instruments required for adjustment, „ Standard volume position

Contents

TABLE OF CONTENTS No.MA063 2004/4SERVICE MANUAL KD-LH401SPECIFICATION AUDIO AMPLIFIER SECTIONTUNER SECTION CD PLAYER SECTIONSECTION PRECAUTION 1.1 Safety Precautions1.4 Attention when traverse unit is decomposed Please refer to Disassembly method in the text for the pickup unit1.2 Preventing static electricity 1.2.1 Grounding to prevent damage by static electricityREPRODUCTION AND POSITION OF LABELS WARNING LABEL1.5 Important for laser products 1.CLASS 1 LASER PRODUCT Please use enough caution not to see the beam directly or touch itSECTION SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONSSECTION DISASSEMBLY A B A3.1.1 Removing the front panel assembly See Fig.1 3.1 Main body section3.1.3 Removing the top chassis assembly See Figs.3 to Reference3.1.4 Removing the front chassis See Figs.7 and 3.1.5 Removing the mechanism control board See Fig.93.1.6 Removing the CD mechanism assembly See Fig.10 Reference3.1.7 Removing the main board See Figs.11 and ReferenceK L K 3.1.8 Removing the rear bracket See Fig.133.1.9 Removing the gear bracket unit See Fig.14 ReferenceRear cover assembly P 3.1.10 Removing the front board See Figs.15 to3.2 CD Mechanism section 3.2.1 Removing the top cover See Figs.1 and Joints a3.2.2 Removing the connector board See Figs.3 to 3.2.3 Removing the DET switch See Figs.6 and 2 Unsolder the DET switch wire if necessary DET switch ConnectorDET switch DET switch wire3.2.4 Removing the chassis unit See Figs.8 and 3.2.5 Removing the clamper assembly See Figs.10 and 3.2.6 Removing the loading / feed motor assembly See Figs.12 and 3.2.7 Removing the pickup unit See Figs.14 to 3.2.8 Reattaching the pickup unit See Figs.14 toPu. shaft holder Feed rack3.2.10 Removing the top plate assembly See Fig.21 3.2.9 Removing the trigger arm See Figs.19 andSelect lock 3.2.11 Removing the mode sw. / select lock arm See Figs.22 andarm spring 3.2.12 Reassembling the mode sw. / select lock arm See Figs.24 to REFERENCE3.2.13 Removing the select arm R / link plate See Figs.27 and REFERENCE3.2.14 Reattaching the Select arm R / link plate See Figs.29 and REFERENCE3.2.15 Removing the loading roller assembly See Figs.31 to 3.2.16 Removing the loading gear 5, 6 and 7 See Figs.35 and 3.2.17 Removing the gears See Figs.37 to 3.2.18 Removing the turn table / spindle motor See Figs.41 and SECTION ADJUSTMENT 4.1 Adjustment method „ Test instruments required for adjustment„ Standard volume position „ How to connect the extension cable for adjustingSECTION TROUBLESHOOTING 5.1 Feed section5.2 Focus section 5.3 Spindle section 5.4 Tracking section5.5 Signal processing section Is RF output Page No.MA0631-33 No.MA063 VICTOR COMPANY OF JAPAN, LIMITEDContents Block diagramStandard schematic diagrams Printed circuit boardsSafety precaution Block diagram BATTERYTU.L TU.R S600 to S617Standard schematic diagrams Main amplifier sectionSHEET To CN50147K SHEETSHEET CD servo control sectionTo CN702 SHEET SHEET LCD & Key control sectionTo CN701 SHEET Printed circuit boards Main boardForward side Reverse sideFront board Mecha control boardFront board Mecha control boardM E M O VICTOR COMPANY OF JAPAN, LIMITED No.MA063SCHPrinted in Japan Exploded view of general assembly and parts list Block No.M1 CD mechanism assembly and parts list Block No.MBElectrical parts list Block No.01~03 Packing materials and accessories parts list Block No.M3Exploded view of general assembly and parts list Block No. M 1 M M40 39 20 21 C1 M M General Assembly Block No. M1MMTN-2001-1013 CD mechanism assembly and parts listBlock No. M B M M CD mechanism Block No. MBMMMain board Electrical parts listBlock No Symbol No. Part No Part Name Front board Block NoPart Name Block No Micon control boardROTARY ENCODER Part Name Part Name MEMO Packing materials and accessories parts list Block NoPacking and Accessories Block No. M3MMCD RECEIVER CD-RECEIVER RECEPTEUR CD CD-RECEIVERENGLISH DEUTSCH BEDIENUNGSANLEITUNG MANUEL D’INSTRUCTIONS GEBRUIKSAANWIJZINGHow to reset your unit IMPORTANT FOR LASER PRODUCTSENGLISH CAUTION on Volume SettingCONTENTS MAINTENANCESOUND ADJUSTMENTS TROUBLESHOOTINGLOCATION OF THE BUTTONS Control panelIllumination Navigation for easy operations w er t yRemote controller ENGLISHPreparing the remote controller Installing the battery1. Remove the battery holder 3. Return the battery holderBASIC OPERATIONS Turning on the power3 Adjust the volume 1 Turn on the powerCanceling the display demonstration To drop the volume in a momentTo turn off the power PSM settingsSetting the clock 6 Finish the setting3 Adjust the hour 4 Set the minute ENGLISHRADIO OPERATIONS Listening to the radioSearching for a station automatically Auto search ENGLISHSearching for a station manually Manual search ENGLISH1 Select the band FM1 - 3, AM 3 Tune in to a station you want while “Manual Search” is flashingFM station automatic preset SSM When an FM stereo broadcast is hard to receiveStoring stations in memory 2 Start automatic presetENGLISH Manual preset2 Tune in to a station in this example, of 92.5 MHz Tuning in to a preset station Selecting a preset station directlySelecting a preset station using the preset station list 2 Select the number 1 - 6 for the preset station you wantChanging the display pattern When receiving an AM or non FM RDSENGLISH stationRDS OPERATIONS What you can do with RDSTracing the same programme automatically Network-Tracking Reception To use Network-Tracking ReceptionUsing TA Standby Reception 5 Finish the settingENGLISH 3 Select “AF-Regn’l” alternative frequency/regionalization receptionUsing PTY Standby Reception To select your favorite PTY code for PTY Standby ReceptionTo set PTY Standby Reception 4 Finish the settingSearching for your favorite programme To store your favorite programme typesENGLISH 2 Select one of the twenty-nine PTY codes. See pageTo search for your favorite programme typeyou can show the list of your preset PTY ENGLISHOther convenient RDS functions and adjustments Setting the TA volume levelAutomatic clock adjustment Automatic selection of the station when using the number buttonsENGLISH PTY codesThe same programme can be received on different frequencies DISC OPERATIONS About MP3 and WMA discsPlaying a disc ENGLISHTo stop play and eject the disc Display indications when inserting an audioWMA or MP3 indicator lights up depending on the first detected track You can eject the disc even when the unit is turned offWhat is ImageLink? To activate ImageLink, follow the procedure belowENGLISH ImageLink will not work in the following casesLocating a track or a particular portion on a discTo go to the next or previous tracks To go to a track quicklyENGLISH You cannot directly select a folder with a number greater thanTo select a particular track in a folder, press If the folder does not contain any MP3 or WMA tracks, it is skippedSelecting a folder and a track using the name lists Selecting a track and start playbackSelecting a folder and start playback ENGLISHSelecting the playback modes To play back tracks at random Random PlayTo play back tracks repeatedly Repeat Play To cancel random play, select “Random Off” byProhibiting disc ejection To play back only intros Intro ScanTo cancel the prohibition and unlock the disc To cancel intro scan, select “Intro Off” byWhen the disc title/performer is shown, the disc indicator lights up. When the track title isthe track indicator lights up indicator appear on the display instead of the folderSOUND ADJUSTMENTS Adjusting the sound2 Make adjustments 1 Select the item you want to adjustSelecting preset sound modes iEQ intelligent equalizer To adjust the input level of each source -Vol AdjENGLISH 1 Press SEL select onceSound modes preset frequency level settings To cancel the sound mode, select “FLAT” inPreset equalizing values ENGLISHStoring your own sound modes 4 Make adjustments as you like 2 Select the sound mode you want to adjust5 Store the adjustment you made 3 Enter the sound adjustment modeSelecting the display theme ViewMeter ShakeInstall / Start the program GRAPHIC DISPLAYSImport the images Retouch and edit the imagesDownloading images and animations ENGLISH1 Open the control panel 3 Press M MODE after the disc is detectedIf you want to cancel the procedure You can assign your own names when editing a CD-RIf you want to cancel the procedure ENGLISH12 Finish the download procedure ENGLISH8 Show the name list of the files included in the selected folder 9 Select highlight a file you want to downloadDeleting unwanted files To delete all the stored files at a timetime,” and “Movie” To delete the files stored for “Opening,”To delete the stored files for “Picture” one by one 5 To delete the file stored in “Opening,”3 again ∞ down repeatedlyActivating the graphic screen using either picture or movie Activating the downloaded images and animationsActivating the animations stored for opening and ending screens 5 Finish the setting4 Finish the setting 4 Select a file you want 5 Finish the settingTo cancel all graphic displays, select “Off” in step Selecting a still image for graphic display-User PictureBasic Procedure OTHER MAIN FUNCTIONSChanging the general settings 3 Select the PSM item you want to adjustPreferred Setting Mode PSM items Factory-presetENGLISH IndicationsTA Volume Displayed only when “DAB AF” is set to “Off.”Displayed only when DAB tuner is connected Not displayed when the current source is “CD-CH” or “LINE IN.”To 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 change the FM tuner selectivity -IF Filter To select the external component to use -Ext InputTo select the amplifier gain control -Amp.Gain when the next track starts playingSelecting the dimmer mode 5 Select “From- To” to set the timer for the dimmer mode3 Press ¢ or 4 to select “Dimmer.” 6 Set the timer 7 Finish the settingChanging the display color Setting the desired color for each source6 Finish the setting ENGLISHCreating your own color-User 4 Select the user color adjustment screen5 Select “Day” or “Night” which you want to make an adjustment for 6 Adjust the selected user colorAssigning names to the sources To erase the entered characters7 Finish the procedure while the last selected character is flashing ENGLISHChanging the control panel angle 1 Press and hold angle until the angle adjustment screen appearsENGLISH The control panel angles changes as followsDetaching the control panel Detaching the control panelAttaching the control panel ENGLISHCD CHANGER OPERATIONS Playing discsENGLISH Select the CD changer CD-CHTo change the display pattern To go to a particular disc directlyTo fast-forward or reverse the track To go to the next or previous tracksTo skip to the next or previous folder only for MP3 discs How to go to the desired track quicklyENGLISH To go to a track quicklySelecting a disc/folder/track using the name lists ENGLISH1 While playing a disc, press and hold 5 up or ∞ down until a disc name list appears on the displaySelecting the playback modes ENGLISHTo play back tracks at random Random Play To play back tracks repeatedly Repeat PlayTo cancel repeat play, select “Repeat Off” by To cancel intro scan, select “Intro Off” byTo play back only intros Intro Scan ModeEXTERNAL COMPONENT OPERATIONS Changing the display patternPlaying an external component 3 Adjust the volume 4 Adjust the sound as you want. See pages 32Tuning in to an ensemble and one of the services What is DAB system?DAB TUNER OPERATIONS ENGLISHWhen surrounding noises interfere your listening while driving To tune in to a particular ensemble without searching4 Select a service either primary or secondary you want to listen to ENGLISHStoring DAB services in memory To restore the FM/AM tuner4 Select a service of the ensemble you want to listen to To cancel the DRC effect, select “DRC Off.”service Tuning in to a preset DABSelecting a preset service using the preset service list preset DAB service primary youUsing Announcement Standby Reception What you can do more with DABRoad Traffic News Standby Reception TA Standby Reception for Announcement Standby ReceptionTo activate Announcement Standby Reception How Announcement Standby Reception worksAnnouncement type ENGLISHSearching for your favorite service To use Alternative ReceptionUsing PTY Standby Reception To store your favorite programme service types, see pages 19 andChanging the display pattern 1 TEXT indicator implies the current service received is providing DLS Dynamic Label Segment-DAB radio text informationENGLISH TROUBLESHOOTING SymptomsENGLISH CausesSymptoms ENGLISHCauses RemediesAvailable characters SymptomsENGLISH CausesMAINTENANCE How to handle discsTo keep discs clean When playing a CD-R or CD-RWSPECIFICATIONS AUDIO AMPLIFIER SECTIONTUNER SECTION CD PLAYER SECTIONPlease reset your unit Refer to page of How to reset your unitHaving TROUBLE with operation? Bitte setzen Sie Ihr Gerät zurückINSTALLATION INSTALLATION MONTAGEINSTALLATIE INBOUW IN KD-LH401TROUBLESHOOTING FEHLERSUCHEEN CAS DE DIFFICULTES ELECTRICAL CONNECTIONSFRANÇAIS NEDERLANDSENGLISH DEUTSCHAmplifier / Verstärker / Amplificateur / Versterker Subwoofer / Subwoofer / Caisson de grave / SubwooferCAUTION / VORSICHT / PRECAUTION / LET OP For amplifier only