DVD/ Video Cassette Recorder - Cjoint

STANDARD NOTES FOR SERVICINGNOTE: BOARD MEANS PRINTED CIRCUIT BOARD.Circuit Board IndicationsPb (Lead) Free Solder1. The output pin of the 3 pin Regulator ICs isindicated as shown.When soldering, be sure to use the Pb free solder.How to Remove / Install Flat Pack-ICTop ViewOutBottom ViewIn1. RemovalInputWith Hot-Air Flat Pack-IC Desoldering Machine:2. For other ICs, pin 1 and every fifth pin areindicated as shown.1. Prepare the hot-air flat pack-IC desolderingmachine, then apply hot air to the Flat Pack-IC(about 5 to 6 seconds). (Fig. S-1-1)5Pin 1103. The 1st pin of every male connector is indicated asshown.Fig. S-1-1Pin 12. Remove the flat pack-IC with tweezers whileapplying the hot air.Instructions for Connectors1. When you connect or disconnect the FFC (FlexibleFoil Connector) cable, be sure to first disconnectthe AC cord.2. FFC (Flexible Foil Connector) cable should beinserted parallel into the connector, not at anangle.3. Bottom of the flat pack-IC is fixed with glue to theBOARD; when removing entire flat pack-IC, firstapply soldering iron to center of the flat pack-ICand heat up. Then remove (glue will be melted).(Fig. S-1-6)4. Release the flat pack-IC from the BOARD usingtweezers. (Fig. S-1-6)CAUTION:FFC CableConnectorBOARD1. The Flat Pack-IC shape may differ by models. Usean appropriate hot-air flat pack-IC desolderingmachine, whose shape matches that of the FlatPack-IC.2. Do not supply hot air to the chip parts around theflat pack-IC for over 6 seconds because damageto the chip parts may occur. Put masking tapearound the flat pack-IC to protect other parts fromdamage. (Fig. S-1-2)* Be careful to avoid a short circuit.1-4-1DVDP SN

3. The flat pack-IC on the BOARD is affixed withglue, so be careful not to break or damage the foilof each pin or the solder lands under the IC whenremoving it.BOARDWith Soldering Iron:1. Using desoldering braid, remove the solder fromall pins of the flat pack-IC. When you use solderflux which is applied to all pins of the flat pack-IC,you can remove it easily. (Fig. S-1-3)Hot-airFlat Pack-ICDesolderingMachineFlat Pack-ICDesoldering BraidSoldering IronMaskingTapeTweezersFlat Pack-ICFig. S-1-2Fig. S-1-32. Lift each lead of the flat pack-IC upward one byone, using a sharp pin or wire to which solder willnot adhere (iron wire). When heating the pins, usea fine tip soldering iron or a hot air desolderingmachine. (Fig. S-1-4)SharpPinFine TipSoldering IronFig. S-1-43. Bottom of the flat pack-IC is fixed with glue to theBOARD; when removing entire flat pack-IC, firstapply soldering iron to center of the flat pack-ICand heat up. Then remove (glue will be melted).(Fig. S-1-6)4. Release the flat pack-IC from the BOARD usingtweezers. (Fig. S-1-6)1-4-2DVDP SN

With Iron Wire:2. Installation1. Using desoldering braid, remove the solder fromall pins of the flat pack-IC. When you use solderflux which is applied to all pins of the flat pack-IC,you can remove it easily. (Fig. S-1-3)1. Using desoldering braid, remove the solder fromthe foil of each pin of the flat pack-IC on theBOARD so you can install a replacement flat packIC more easily.2. Affix the wire to a workbench or solid mountingpoint, as shown in Fig. S-1-5.2. The “ I ” mark on the flat pack-IC indicates pin 1.(See Fig. S-1-7.) Be sure this mark matches thepin 1 on the BOARD when positioning forinstallation. Then presolder the four corners of theflat pack-IC. (See Fig. S-1-8.)3. While heating the pins using a fine tip solderingiron or hot air blower, pull up the wire as the soldermelts so as to lift the IC leads from the BOARDcontact pads as shown in Fig. S-1-5.4. Bottom of the flat pack-IC is fixed with glue to theBOARD; when removing entire flat pack-IC, firstapply soldering iron to center of the flat pack-ICand heat up. Then remove (glue will be melted).(Fig. S-1-6)3. Solder all pins of the flat pack-IC. Be sure thatnone of the pins have solder bridges.Example :5. Release the flat pack-IC from the BOARD usingtweezers. (Fig. S-1-6)Note: When using a soldering iron, care must betaken to ensure that the flat pack-IC is notbeing held by glue. When the flat pack-IC isremoved from the BOARD, handle it gentlybecause it may be damaged if force is applied.Pin 1 of the Flat Pack-ICis indicated by a " " mark.Fig. S-1-7Hot Air BlowerPresolderorIron WireSoldering IronTo SolidMounting PointFig. S-1-5Flat Pack-ICBOARDFig. S-1-8BOARDFine TipSoldering IronFlat Pack-ICTweezersFig. S-1-61-4-3DVDP SN

Instructions for Handling SemiconductorsElectrostatic breakdown of the semi-conductors mayoccur due to a potential difference caused byelectrostatic charge during unpacking or repair work.1. Ground for Human BodyBe sure to wear a grounding band (1 MΩ) that isproperly grounded to remove any static electricity thatmay be charged on the body.2. Ground for WorkbenchBe sure to place a conductive sheet or copper platewith proper grounding (1 MΩ) on the workbench orother surface, where the semi-conductors are to beplaced. Because the static electricity charge onclothing will not escape through the body groundingband, be careful to avoid contacting semi-conductorswith your clothing. Incorrect BOARD Correct Grounding Band1MΩBOARD1MΩConductive Sheet orCopper Plate1-4-4DVDP SN

PREPARATION FOR SERVICINGHow to Enter the Service ModeAbout Optical SensorsCaution:An optical sensor system is used for the Tape Startand End Sensors on this equipment. Carefully readand follow the instructions below. Otherwise the unitmay operate erratically.What to do for preparationInsert a tape into the Deck Mechanism Assembly andpress [ B ] (VCR) button. The tape will be loaded intothe Deck Mechanism Assembly. Make sure the poweris on, connect JP278(S-INH) to GND. This will stop thefunction of Tape Start Sensor, Tape End Sensor andReel Sensors. (If these TPs are connected beforeplugging in the unit, the function of the sensors willstay valid.) See Fig. 1.Q503Q504JP278 (S-INH)Fig. 1Note: Because the Tape End Sensors are inactive,do not run a tape all the way to the start or theend of the tape to avoid tape damage.1-5-1E9TK0PFS

CABINET DISASSEMBLY INSTRUCTIONSNOTE: BOARD MEANS PRINTED CIRCUIT BOARD.1. Disassembly FlowchartID/LOC.No.This flowchart indicates the disassembly steps to gainaccess to item(s) to be serviced. When reassembling,follow the steps in reverse order. Bend, route, anddress the cables as they were originally.[6] Fan Holder[1] Cover Top[3] BOARD USB[7] Motor DC Fan[2] FrontAssembly[11] BOARDSWITCH[13] BOARDPOWER SWITCH[8] Panel Rear[12] BOARDFUNCTION[2]FrontAssemblyFan HolderD42(S-10), *CN1002-P---D42(S-11)---Motor DCFan2(S-12), 5(S-13),Rear Holder---[9] BOARDPOWER SUPPLY[9]BOARDPOWERSUPPLYD5(S-14), 3(S-15),(S-16), *CL1001,*CN3605, FFC Guide---[10] Power Holder[10]PowerHolderD5-------------[14] VCRChassis Unit[11]BOARDSWITCHD5(S-17), Desolder---[15] DeckAssembly[12]BOARDD5FUNCTION2(S-18), *CN1504---[19] Deck Pedestal[21] Bracket RBOARD[13] POWERSWITCHD6(S-19), Desolder---VCR[14] ChassisUnitD65(S-20), 4(S-21)---DeckAssemblyD7(S-22), 7] REARJACKD7Desolder----------------[15]REMOVALCover Top[6]D42. Disassembly Method[1]2Panel Rear[18] BOARD AVPART[5](S-6), 2(S-7), 2(S-8),2(S-9), *CN101,*CN502-D, *CN701,*CN901, *CN981,Dust Cover, Hook,Mecha Plate Earth[8][17] BOARDREAR JACKID/LOC.No.REMOVE/*UNHOOK/Fig.UNLOCK/RELEASE/ NoteNo.UNPLUG/DESOLDER[5] DVD Mechanism& DVD MAINBOARD Assembly[16] BOARD DTVMODULE Unit[20] FrontBracket RPARTDVDMechanism& DVDD3MAINBOARDAssembly[7][4] Front BracketREMOVALREMOVE/*UNHOOK/Fig.UNLOCK/RELEASE/ NoteNo.UNPLUG/DESOLDERD19(S-1)---D2*5(L-1), *3(L-2), (S-2),2(S-3), *CN6001,USB Holder, USBPlate (S-4), (S-5), FrontSupport---[18] BOARD AV t RD8(S-25), 2(S-26), DVCable, DV Plate Earth---[21] Bracket RD82(S-27)--- (1)(2)(3)(4)(5)E9TK0DC

Note:(1): Identification (location) No. of parts in the figures(2): Name of the part(3): Figure Number for reference(4): Identification of parts to be removed, unhooked,unlocked, released, unplugged, unclamped, ordesoldered.P Spring, L Locking Tab, S Screw,CN Connector* Unhook, Unlock, Release, Unplug, or Desoldere.g. 6(S-1) six Screws (S-1),5(L-1) five Locking Tabs (L-1)(5): Refer to “Reference Notes.”(S-4)[4] Front nce Notes(S-3) CN6001(L-1)[3] BOARD1. Locking Tabs (L-1) and (L-2) are fragile. Be carefulnot to break them.USB1-1. Remove Screw (S-2).USB HolderUSB Plate Earth1-2. Release four Locking Tabs (L-1).1-3. Release three Locking Tabs (L-2).[2] Front AssemblyFig. D2(L-2)1-4. Disconnect Connector (CN6001), andremove the Front Assembly.2. The DVD Mechanism & DVD MAIN BOARDAssembly is adjusted as a unit at factory.Therefore, do not disassemble it. Replace theDVD Mechanism & DVD MAIN BOARDAssembly as a unit.CN981CN701CN1013. When reassembling, solder wire jumpers asshown in Fig. D7.4. Before installing the Deck Assembly, be sure toplace the pin of LD-SW on the BOARD AV asshown in Fig. D7. Then, install the Deck Assemblywhile aligning the hole of Cam Gear with the pin ofLD-SW, the shaft of Cam Gear with the hole of LDSW as shown in Fig. D7.[1] Cover Top(S-1)Mecha PlateEarth(S-7)(S-1)(S-9)(S-7)CN901[5] *DVDMechanism& DVD 6)(S-1)* See Reference Notes 2.Fig. D3Fig. D11-6-2E9TK0DC

[7] MotorDC Fan[8] Panel Rear(S-12)(S-21)(S-20)(S-10)[14] VCRChassis Unit(S-13)(S-12)Rear Holder(S-11)(S-13) [6] Fan Holder[13] BOARDPOWER SWITCHCN1002-PFig. D4(S-19)(S-14)FFC Guide[9] BOARDPOWER SUPPLYCL1001Desolder(S-15)Lead withblue stripeFig. D6(S-18)(S-16)CN3605[12] BOARDFUNCTION[10] PowerHolderDesolder(S-17)CN1504[11] BOARD SWITCHFig. D51-6-3E9TK0DC

FE HeadCylinderAssemblyPinACE HeadAssembly[15] DeckAssemblySW507LD-SW[17] BOARDREAR JACK[16] BOARDDTV MODULEUnit[18] BOARD AV[15] Deck AssemblyCam GearHoleShaftHole(S-22)[18] BOARD AVLD-SWPin[18] BOARD AV(S-23)DesolderDesolderFromACE HeadAssemblyFromFE HeadFromCylinderAssemblyLead withwhite stripePrinting sideFFC ofCapstanMotorLead withblue stripeDesolderDesolderDesolderBOTTOM VIEWLead connections of Deck Assembly and BOARD AVFig. D7Note: When removing FFC(B37A) of Capstan Motor from BOARD AV, be sure to replace the new FFC(B37A).(Don’t solder FFC which removed once again)1-6-4E9TK0DC

(S-24)[19] Deck Pedestal[21] Bracket R(S-27)[20] FrontBracket RDV Plate Earth(S-25)(S-26)DV CableFig. D81-6-5E9TK0DC

3. How to Eject ManuallyNote: When rotating the gear, be careful not to damage the gear.1. Remove the Cover Top, Front Assembly, Front Bracket, DVD Mechanism & DVD MAIN BOARD Assembly.2. Remove the Dust Cover.3. Rotate the gear in the direction of the arrow manually as shown below the tray descends.4. Pull the tray out manually and remove a disc.View for AARotate this gear inthe direction of the arrowHook1-6-6E9TK0DC

ELECTRICAL ADJUSTMENT INSTRUCTIONSNOTE: BOARD MEANS PRINTED CIRCUIT BOARD.Head Switching Position AdjustmentNote:1. Electrical adjustments are required after replacingcircuit components and certain mechanical parts.It is important to do these adjustments only afterall repairs and replacements have beencompleted. Also, do not attempt these adjustmentsunless the proper equipment is available.Purpose:To determine the Head Switching position duringplayback.Symptom of Misadjustment:May cause Head Switching noise or vertical jitterin the picture.2. To perform these alignment / confirmationprocedures, make sure that the tracking control isset in the center position: Press either [PROGRAM5? ] or [PROGRAM] button on the front panelfirst, then the [ B ] (VCR) button on the front panel.Test pointAdj.PointVR501J171(V-OUT)TP504(RF-SW) (Switching Point)GND(BOARD AV)Test Equipment Required1. Oscilloscope: Dual-trace with 10:1 probe,V-Range: 0.001 50V/Div.,F-Range: DC AC-20MHz2. Alignment Tape ntSpec.FL6AOscilloscope6.5H 1H(416μs 64μs)Connections of Measurement . ( )Figure 1EXT. Syncronize Trigger PointCH1CH20.5H1.0H6.5H 1H (416 μs 64 μs)V-SyncSwitching PulseReference Notes:Playback the Alignment tape and adjust VR501 sothat the V-sync front edge of the CH1 video outputwaveform is at the 6.5H 1H (416μs 64μs)delayed position from the rising edge of the CH2head switching pulse waveform.1-7-1E9TK0EA

HOW TO INITIALIZE THE DVD RECORDER & VCRTo put the program back at the factory-default, initialize the DVD recorder & VCR as the following procedure. DVD Section 1. Turn on the DVD recorder & VCR.2. Confirm that no disc is loaded or that the disc trayis open. To put the DVD recorder & VCR into theVersion display mode, press [DVD], [INSTANTSKIP], [1], [2], and [3] buttons on the remotecontrol unit in that order.Fig. a appears on the screen.*1: "*******" differs depending on the models.*2: Firmware Version differs depending on themodels, and this indication is one example.F/W VERSION DISPMODEL NAME :DVB-T VERSION:FE VERSION :BE VERSION :TT VERSION :DV UNIQUE ID:LD ADJUSTMENT :DISC ADJUSTMENT :**********.****** *** ************************************ ********OKOKDEFAULT SETTING : ENTEREXIT : RETURNFig. a Version Display Mode Screen3. Press [ENTER/OK] button, then the DVD recorder& VCR starts initializing. When the initializing iscompleted, the DVD recorder & VCR exits theVersion display mode and turns off the powerautomatically.*To move into the Normal mode from theVersion display mode, press [RETURN] buttonon the remote control unit instead of [ENTER/OK] button.*When [ ] button is pressed before [ENTER/OK] button is pressed, the DVD recorder &VCR exits the Version display mode, then thepower turns off.Note: By initializing, “Current Clock”, “SetupChanging Item”, “Channel Setup” and “TimerProgram” are initialized.1-8-1E9TK0INT

FIRMWARE RENEWAL MODE1. Turn the power on and remove the disc on the tray.2. To put the DVD recorder & VCR into version upmode, press [DVD], [INSTANT SKIP], [6], [5], and[4] buttons on the remote control unit in the order.Then the tray will open automatically.Fig. a appears on the screen and Fig. b appearson the VFD.4. Select the firmware version pressing arrowbuttons, then press [ENTER/OK].Fig. d appears on the screen and Fig. e appearson the VFD. The DVD recorder & VCR startsupdating.About VFD indication of Fig. e:1) When Fig. d is displayed on the screen, “F-UP”is displayed on the VFD.* Firmware Version differs depending on themodels, and this indication is one example.Firm Update Modever. *************2) When “Firmware Updating. XX% Complete.”is displayed on the screen, BE version numberis displayed on the VFD such as 194000.CurrentF/W versionis displayed.* Firmware Version differs depending on themodels, and this indication is one example.Firm Update Modever. *************Please insert a disc.SelectedF/W versionis displayed.(*1)Fig. a Version Up Mode ScreenFig. b VFD in Version Up ModeFig. e VFD in Version Up Mode (Example)The appearance shown in (*1) of Fig. d isdescribed as follows.* Firmware Version differs depending on themodels, and this indication is one example.Disc nameis displayed.No.ver. *************VOL **********File Loading.Fig. d Programming Mode Screen3. Load the disc for version up.Fig. c appears on the screen. The file on the top ishighlighted as the default.When there is only one file to exist, Step 4 willstart automatically.Firm Update Mode************Files includedin the disc aredisplayed.1/1AppearanceState1File Loading.Sending files into the memory2FirmwareUpdating.Writing new version dataXX% Complete.---FirmwareUpdate FailureFailed in updatingFig. c Update Disc Screen5. After updating is finished, the tray opensautomatically.At this time, no button is available.6. Pull out the AC code once, then insert it again.1-9-1E9TK0FW

How to Verify the Firmware Version1. Turn on the DVD recorder & VCR.2. Confirm that no disc is loaded or that the disc trayis open. To put the DVD recorder & VCR into theVersion display mode, press [DVD], [INSTANTSKIP], [1], [2], and [3] buttons on the remotecontrol unit in that order.Fig. f appears on the screen.*1: "*******" differs depending on the models.*2: Firmware Version differs depending on themodels, and this indication is one example.F/W VERSION DISPMODEL NAME :DVB-T VERSION:FE VERSION :BE VERSION :TT VERSION :DV UNIQUE ID:LD ADJUSTMENT :DISC ADJUSTMENT :**********.****** *** ************************************ ********OKOKDEFAULT SETTING : ENTEREXIT : RETURNFig. f Firmware version displayDisplayContentsMODEL NAME Model NameDVB-TVERSIONDVB-T Module versionFE VERSIONFirmware F/E versionBE VERSIONFirmware B/E versionTT VERSIONFirmware T/T versionDV UNIQUE ID DV Unique IDLDLD adjustment progress (done: OK/ADJUSTMENT not done: --)DISCFactory adjustment progress (done:ADJUSTMENT OK/not done: --)3. Press [RETURN] or [] button to turn off.Note: Be sure to verify the firmware version.1-9-2E9TK0FW

REMOTE CONTROL KEY CODENEC FormatKey 3840485245BC-112INPUT 016245BC-027345BC-038PROG. UP45BC-1E9445BC-0410545BC-051511645BC-0612PROG. DOWN45BC-1F1913745BC-0714845BC-0815945BC-0916TIMER 24GUIDE45BC-6D25TOP MENU45BC-D026CURSOR UP45BC-C027DISC MENU45BC-D128CURSOR LEFT45BC-CC29ENTER/OK45BC-4430CURSOR RIGHT45BC-C431DISPLAY45BC-5A32CURSOR 5BC-9839PLAY45BC-1340FWD45BC-9A41SKIP DOWN45BC-8442STOP45BC-1643SKIP 3Name1465150555444PAUSE45BC-1745------46INSTANT SKIP45BC-5B47SAT.LINK45BC-1D48TIME SLIP45BC-1A49DUBBING45BC-5650REC AUDIO45BC-D355TIMER SET45BC-671-10-1E9TK0RC

TROUBLESHOOTINGNOTE: BOARD MEANS PRINTED CIRCUIT BOARD.1 Power Supply SectionFLOW CHART NO.1The power cannot be turned on.NoIs the fuse normal?See FLOW CHART No.2 The fuse blows out. YesIs normal state restored when once unplugged powercord is plugged again after several seconds.YesIs the SYS 5V line voltage normal?YesIs the AL 5V line voltage normal?YesCheck each rectifying circuit of secondary circuit andreplace P1(AV ASSEMBLY) or P4(PW/SW ASSEMBLY)if defective.NoNoNoCheck for lead or short-circuiting of primary circuitcomponent and replace P4(PW/SW ASSEMBLY)if defective.SYS 5V (IC1051, IC1052, IC1151, D1051, D1052,D1053, D1054, D1057, D1058, D1152, R1054, T1051,RL1001)AL 5V (Q1001, Q1003, T1001, D1001, D1002, D1003,D1004, D1011, D1102, D1140, R1003)FLOW CHART NO.2The fuse blows out.Check

1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC. 2. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other .