Kenwood-RXDNV-301-Service-Manual电路原理图.pdf

70%In compliance with Federal Regulations, following are repro-duction of labels on, or inside the porduct relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No.21 CFR1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeat-ed. AVOID DIRECT EXPOSURE TO BEAM.Hi-Fi COMPONENT SYSTEMRXD-NV301/NV301E/NV701/NV701ESERVICE MANUAL©2000-8/B51-5657-00 (K/K) 3673VOLUMECONTROLHI-FI COMPONENT SYSTEMCDMULTI CONTROLSETENTERMENUDEMODISC SKIPOPEN/CLOSEPHONES STANDBYON/STANDBYTUNERTAPEMD/DVDBANDchanger(NV-301/301E/701/701E)Button(K29-7904-08)Knob(K29-7901-08)Button(k29-7903-08)Button(K29-7902-08)Panel(FRONT) *(A21-)Figure is RXD-701.*Refer to parts list on page41. Panel(FG)(B10-3642-08)Panel (A21-3916-08)Cover(TRAY) (A60-1971-08)Panel (A21-3911-08)Panel *(A21-)Foot ass'y (J02-1506-08)x4RXD-NV301/NV301E/NV701/NV701E2CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3DISASSEMBLY FOR REPAIR.4CIRCUIT DESCRIPTION.6ADJUSTMENT.10WIRING DIAGRMA.12PC BOARD.14SCHEMATIC DIAGRAM.21EXPLODED VIEW.39PARTS LIST.41SPECIFICATIONS.51ContentsAccessoriesFM indoor antenna(1)(T90-0830-08)Speaker cords NV-301 (2)NV-701 (6)(Speaker cords are providedin the speaker package. Besure to check that the correctlengths have been provided.)Batteries (R6/AA) AC plug adaptor (1)(E03-0115-05)Use to adapt the plug on the power cordto the shape of the wall outlet.(Accessory only for regions where use isnecessary.)AM loop antenna (1)(T90-0804-08)RC-NV301ERC-NV301RC-NV701ERC-NV701Remote control unit(1)(A70-1459-08): ETE2(A70-1475-08): KMX(A70-1460-08): ETE2(A70-1461-08): KMXYOperation to resetThe microcomputer may fall into malfunction (impossibilityto operate, erroneous display, etc.) if the power cord isunplugged while power is ON or due to an external factor.In this case, execute the following procedure to reset themicrocomputer and return it to normal condition.Unplug the power cord from the power outlet then, whileholding the SET (¶) key depressed, plug the power cordagain¶Please note that resetting the microcomputer clears thestored contents and returns to the factory set condition.SET(Main unit only)Cautions System configurations(RXD-NV301/NV701)SYSTEMMAIN UNITDESTINATIONSPEAKERSP CORD PARTS NoSPEAKERSP CORD PARTS NoNV-301RXD-NV301KMXTELS-NV701E30-5500-05-NV-301ERXD-NV301EE2LS-NV701E30-5500-05-NV-701RXD-NV701KMXYTELS-NV701E30-5500-05CRW-NV701E30-5858-05E30-5859-05NV-701ERXD-NV701EE2LS-NV701E30-5500-05CRW-NV701E30-5858-05E30-5859-05SPEAKERSMD/DVDSUPERWOOFERPRE OUT(6 16 )+RLR LFM75GNDAMOPTICALOUTRXD-NV301/NV301E/NV701/NV701E3EXTERNAL VIEWFM75GNDAMOPT. OUTCDVIDEO 1COAX. INOPT. IN VIDEO 2 DIGITALVIDEO AUDIO6ch INPUTGREENCENTERRREDLBLUEFRONTRLBROWNSUBWOOFERSPEAKERS (6-16 )ORANGEGRAYSURROUNDTerminal,RCA(E63-1186-08)Cabinet rearTerminal,RCA(E63-1188-08)Terminal,RCA(E63-1187-08)Module(W02-2732-05) Module(W02-2731-05) Terminal,RCA(E63-1185-08)Tuner,FM/AM *(W02-)RXD-NV701RXD-NV301Cabinet rearTerminal board(E70-0137-08)Terminal,RCA(E63-0189-08)Terminal,RCA(E63-1181-08)Module(W02-2800-08)Tuner,FM/AM *(W02-)*Refer to parts list on page41.Fig 1.23311x22x2RXD-NV301/NV301E/NV701/NV701E4DISASSEMBLY FOR REPAIR1. How to Remove the Front Panel 1. Remove screws(1X2) and CD cover.2. Remove screws(2x4) and (3X2).Fig 2.4x33. Remove screws(4X3) on the bottom plate.Fig 3.5x25x24. Remove screws(5X4).RXD-NV301/NV301E/NV701/NV701E5DISASSEMBLY FOR REPAIR5. To separate the front panel, remove connectors listed below.CP304(CP904)MAINCP903CP906CP905CP701CP103CP105CP106CP107CP110FRONT-2MAIN CON.THE CONNECTORSLOCATIONNV301 ONLYNV701 ONLYOTHERS : BOTH MODELSCP305CP301CP706CP102CP104CP108CP3062. How to Remove the CD Mechanism1. Rear panel and main unit can be separated by removing screws (6X3) and (7X3).Fig 4.Rear PanelCP904orCP3046x37x37x32. Remove screws(8X4) and CD mechanism.Fig 5.8x28x2RXD-NV301/NV301E/NV701/NV701E6CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription1,2NC-Unused.3VDD-Power supply.4POWER DOWNIInput port for power down.5VOLUME DOWNIPulse input of volume encoder(down).6RDS CLKIRDS clock input.7VOLUME UPIPulse input of volume encoder(up).8REMOCONIRemote control data input.9RDS DATAIRDS data input. 10,11NC-Unused.12PROTECTIONIDetection signal input for protection.13CrO2IInput port of CrO2 detection switch for deck.14REEL DATAIInput port of reel data.15AMS INIAMS input.16SYS DATAOData output to volume IC(IC313) for NV701. Data output to function IC(IC301) for NV301.17SYS CLKOClock output to volume IC(IC313) for NV701. Clock output to function IC(IC301) for NV301.18DIGI 1I/OCommunication with FL driver IC.19DIGI 2I/OCommunication with FL driver IC.20H/P SENSEIDetection port of headphones jack.21912CSBOSub DSP chip select for NV701. NC-Unused for NV301.22912SCKOClock output to YSS912(IC603) for NV701. TUNER CLKOClock output to PLL IC(IC2) for NV301.23912SOOSerial data output to YSS912(IC603) for NV701.NC-Unused for NV301.24912SIISerial data input from YSS912(IC603) for NV701. NC-Unused for NV301.25912CSOChip select to YSS912(IC603) for NV701. NC-Unused for NV301.26TUNEDITuned input.27STEREOIStereo signal input.28VREF-Reference voltage.29,30KEY1,KEY2IA/D key input.31VSMITuner signal meter A/D input.32TUNER DOIPLL IC data input.33MODE(DECK)IDeck mode switch input.34STATUSIDeck pack in/rec in/off sense port.35AREA SELECTISelection of destination for tuner.36THERMAL PROTECTIDetection port of thermometer.37AVSS-Connected to ground.38RESETIReset signal input.39EXTALIInput port of crystal oscillator.40XTALOOutput port of crystal oscillator.41VSS-Connected to ground.42TX-Port for 32.768kHz crystal oscillation.43TEX-Port for 32.768kHz crystal oscillation.44VDD-Power supply.45VFDP-Connected to ground.46SOLENOIDOControl port of solenoid for deck.47MOTOR ONOControl port of motor for deck.48DECK MUTEOControl port of deck mute.49REC MUTEOControl port of rec mute.50DOLBYODolby noise reduction output for deck.51BEAT CUTOOutput port of AM beat cut for deck.52CrO2- RECOControl port of rec bias for deck.53REC/PB OSelection of recording and playback for deck.54CD POWER DOWNOControl port of CD power down.1. Pin description of microprocessor : IC2CXP82852-183Q(RXD-NV301)/CXP82860-185Q(RXD-NV701)RXD-NV301/NV301E/NV701/NV701E7CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription554226 CSOChip select to CS4226(IC602) for NV701. NC-Unused for NV301.564226 PDNOPower down to CS4226(IC602) for NV701. NC-Unused for NV301.57HIGH SPEEDOControl port of high speed for deck.5862446 LATCHOLatch control to M62446FP(IC313) for NV701. NC-Unused for NV301.59TUNER MUTEOMuting control port for tuner.607821 CLKOClock output to LC7821(IC311) for NV701. NC-Unused for NV301.617821 DIOData output to LC7821(IC311) for NV701. NC-Unused for NV301.627311 STBOStrobe output to NJM7311AM(IC312) for NV701. NC-Unused for NV301.63MAIN MUTEOControl port for main muting on/off.64PHONE MUTEOControl port for headphones muting on/off.65FRONT RLYOControl port for front relay.66STANDBY RLYOControl port for standby relay.67ATTOControl port for attenuation.68TUNER CEOControl port of chip enable for tuner.69TUNER DIOData output to PLL IC.707821CEOChip enable to LC7821(IC311) for NV701. NC-Unused for NV301.71TUNER LEDOControl port of tuner led on/off.72DECK LEDOControl port of deck led on/off.73STANDBY REDOControl port of standby led(red) on/off.74STANDBY GREENOControl port of standby led(green) on/off.75AUX LEDOControl port of video1/2,6ch led on/off for NV701. OControl port of AUX led on/off for NV301.76CD LEDOControl port of CD led on/off.77FAN CONTROLOControl port for fan.7888NC-Unused.89VDD-Power supply.90100NC-Unused.Pin No.Pin NameI/ODescription1VDD-+5V power supply.2RAMCEN-Unused.3,4RAMA16,15-Unused.57SDIB02I+PCM input 02 to Sub DSP.8X1ICrystal oscillator connection (12.288MHz).9XOOCrystal oscillator connection.10VSS-Ground.11AVDD-+3.3V power supply (for PLL circuit).12SDIB3-Unused.13,14TEST-Unused.15OVFB-Unused.16DTSDATA-Unused.17AC3DATA-Unused.18SDOB3-Unused.19CPOOOutput terminal for PLL, to be connected to ground throughthe external analog filter circuit.20AVSS-Ground (for PLL circuit).21VDD-+3.3V power supply (for core logic).2224SDOA2SDOA0-Unused.2529RAMA14RAMA10-Unused.30VSS-Ground.2. Pin Description of DOLBY Digital /Prologic/DTS recording IC : YSS912(IC603)-NV701ONLYRXD-NV301/NV301E/NV701/NV701E8CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription31VDD-+5V power supply. 32CEN MUTEOMuting control of center channel.33SURR MUTEOMuting control of surround channel.34C/SW RLYOCenter/sub woofer relay control.35SURR RLYOSurround relay control.36SW MUTEOMuting control of sub woofer channel.37FRONT ON/OFFOControl port of front channel on/off.38,39OPORT6,7-Unused.40VSS-Ground.41VDD-+3.3V power supply (for core logic).4244RAMA97-Unused.4547SDOB20OPCM output from Sub DSP.48SDBCK1I+Bit clock input for SDOA, SDIB, SDOB.49SDWCK1I+Word clock input for SDOA, SDIB, SDOB.50VSS-Ground.51VDD-+3.3V power supply (for core logic).52NONPCM-Unused.53CRC-Unused.54MUTE-Unused.55KARAOKE-Unused.56SURENC-Unused.57SDBCK0-Unused.58,59RAMA6,5-Unused.60VSS-Ground.61RAMA4-Unused.62ICIInitial clear.63TEST-Unused.64RAMA3-Unused.65CSBISub DSP chip select.66CSIMicroprocessor interface chip select input.67SOOMicroprocessor interface serial data output.68SIIMicroprocessor interface/Sub DSP serial data input.69SCKIMicroprocessor interface/Sub DSP clock input.70RAMA2-Unused.71VDD-+5V power supply.7279RAMD0RAMD7-Unused.80VSS-Ground.81VDD-+3.3V power supply (for core logic).82SDWCK0IWord clock input for SDIA,SDOA,SDIB, SDOB.83SDBCK0IBit clock input for SDIA,SDOA, SDIB, SDOB.84,85SDIA0,SDIA1IAC-3 bitstream (or PCM) data input for main DSP.86,87RAMA1,0-Unused.88RAMWEN-Unused.89RAMOEN-Unused.90VSS-Ground.91VDD-+3.3V power supply (for core logic).92IPORT7I+Analog signal input connection for the right.93,94IPORT6,5I+Analog signal input connections for the left channels.95IPORT4I+OPT 1 input terminal.96IPORT3I+Coaxial input terminal.97IPORT2I+To be connected to pin 85.98,99IPORT1,0I+Input terminal with a pull-up resistor.100VSS-Ground.NOTE :I+ Input terminal with a pull-up resistorRXD-NV301/NV301E/NV701/NV701E9CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription1,215G,16GOGrid signal(15G,16G) output.3VDD-Power supply(+5.0V).4POWER DOWN-Connected to ground.5FOKIFOK data input.6SCORISub code-Q read out timing input.7,8NC-Connected to ground.9SENSEISense signal input.1012NC-Unused.13PLUSEIInput pulse to find CD numbering position.14XRSTOOutput for resetting CXD3017Q(IC501).15CD MUTEOControl port of mute on/off.(at L is active)16SYSTEM OFFOControl port of system off.17XLATOSerial latch data output.18LD ONOOutput to on/off laser.19TEST SW-Unused.20NC-Unused.21MPEG CS -Unused.22MPEG CLK-Unused.23MPEG DATA-Unused.24MPEG DATA-Unused.25SQCKOClock data output for sub code-Q read out. 26SQSOISub code-Q data input. 27DATAOSerial data output. 28VREF-Reference voltage(+5.0V).29DIG LINKI/OCommunication with main microprocessor.30DIG LINKI/OCommunication with main microprocessor.31DOWN SWIInput to detect that pick-up is down.32UP SWIInput to detect that pick-up is up.33OPEN SWIInput to detect that tray is opened.34CLOSE SWIInput to detect that tray is closed.35,36NC-Unused.37AVSS-Connected to ground.38RESETIInput port for resetting to CPU. (at L is active)39EXTALIInput port of 10MHz crystal oscillator.40XTALOOutput port of 10MHz crystal oscillator.41VSS-Connected to ground.42NC-Unused.43VSS-Connected to ground.44VDD-Power suply(+5.0V).45VFDP-Power supply(-30V) for FL display.46OPEN SWOOutput to open the tray or down the pick-up.47CLOSE SWOOutput to close the tray or up the pick-up.48RTLOOutput to rotate the roulette ccw.49RTROOutput to rotate the roulette cw.50SPEED DOWNOOutput to decrese roulette speed. (at H is active)51,52P1,P2OSegment signal output.53P3OConnected to ground.5485P4P35OSegment signal output.86881G3GOGrid signal(1G,3G) output.89VDD-Power supply(+5.0V).901004G14GOGrid signal(4G14G) output.3. Pin description of FL driver IC : CXP82832(IC101)Input VoltageOV0.42V0.84V1.27V1.74V2.25V2.63VKEY 1 (29Pin)STOPSETDOWNUPENTERMENU/DEMO-KEY2 (30Pin)CDTUNERTAPEMD/DVDOPENDISC SKIP4. Key Matrix( ) : Port of IC2(u-COM)RXD-NV301/NV301E/NV701/NV701E10ADJUSTMENTRVSFWDNO.ITEMINPUT SETTINGOUTPUT SETTINGCASSETTE TAPE DECK SETTINGALIGNMENT POINTSALIGN FORFIG.0dBs = 0.775VI Cassette mechanism unit (Adjustment of the REC / PLAY head) Unless otherwise specified, set the respective swiches as followsTAPE: NORMAL DOLBY: OFF(1)Demagnetization and cleaningPower : OFF Demagnetization, cleaning, PLAYRecording head, erase head, capstan pinch rollerDemagnetize the REC / PLAY head with the head eraser. Clean the REC / PLAY head, erase head, capstan and pinch roller using a cotton swab slightly damped with alcohol.(2)Azimuth of the REC / PLAY headSCC-1727TCC-153 MTT-114 10kHz, -10dBTP401(L)TP402(R)TP401(L)TP402(R)TP401(L)TP402(R)TP401(L)TP402(R)Connect a DC voltmeter as follows.TP405(Lch),TP404(Rch)PLAYAdjust the output to maximum and adjust the azimuth adjustment screw for the Lissajours waveform pattern of the oscilloscope to become close to a 45ßstraight line.II PC BOARD ADJUSTMENT(1)TAPE SPEED (NORMAL)TCC-110MTT-111SCC-17273kHZPLAYVR407Adjust the tape speed so that 3kHz is obtained at the center of the tape.III PC board adjustment.(1)(2)PLAYBACK LEVELSIGNALCURRENTTCC-130400HzPLAYVR401(L)VR402(R)VR403(L)VR404(R)Adjust the playback output to 6dBs.-20dBs(3)BIAS CURRENT(A)12.5kHz, -20dBInsert CrO2 blank TAPE(A)Adjust the AGfor the output of thedeck to be come-20dBs at 400Hz.REC PAUSE REC PLAYVR405(L)VR406(R)7mV(NV701)5.5mV(NV301)DECK BOARDVR407VR404SIGNALCURRENTVR402(PB/R)TP404(Rch)VR406R BIASL BIASVR405VR403VR401(PB L)TP402(Rch)GNDTP401(Lch)TP405(Lch)