Kenwood-RXDV-636-Service-Manual电路原理图.pdf

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1、70%MINI HiFi COMPONENT SYSTEM2000-8/B51-5654-00 (K/K) 707DISCDISCDISCSTANDBYTIMERDISPLAY/DEMOMENUSELECTBACKENTERSOUNDCONTROLTUNINGMODEMULTICONTROLREC/ARMREVERSEMODETAPE EQ.PHONESDISC SKIPOPEN/CLOSEEX.BASSPUSHOPENPUSHOPENVOLUMECONTROLMICMICVOL.MINMAXSVCDPBCVCDRXD-V333/V333S/V535/V535-GR/V535S/RXD-V53

2、5S-H/V636/V737/V737SSERVICE MANUAL(XD-V333V737)*In compliance with Federal Regulations, following are repro-duction of labels on, or inside the porduct relating to laser prod-uct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No.21 CFR1040. 10, Chapter 1, subchapter J.DANG

3、ER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.*Refer to page 2 if you want to know system configuration.Panel assy (A60-1898-01)Knob (K29-7721-04)Panel(CD)(A29-1119-02)Front glass (B10-3629-02)Knob (K29-7722-04)Phone jack(E11-0280-05)Phone jack (E11-0219-05)Ill

4、ustration is RXD-V737(M).FM indoor antenna (1)(T90-0836-05)Speaker cordsBattery cover (A09-1192-08) Remote control unit (1)(A70-1415-05): RC-V535Use to adapt the plug on the power cord to the shape of the wall outlet.(Accessory only for regions where use is necessary.)AC plug adaptor (1)(E03-0115-05

5、)M type onlyProvided in the speaker package XD-V636 (2)XD-V737, XD-V737S (4)Batteries (R6/AA) (2)Video Cord (1)(E30-1427-05)AM loop antenna (1)(T90-0852-05)RXD-V333/V535/V636/V7372CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES.2EXTERNAL VIEW.3DISASSEMBLY FOR REPAIR.3CIRCUIT DESCRIPTION.4ADJUSTMENT.9WI

6、RING DIAGRAM.11PC BOARD.12SCHEMATIC DIAGRAM.21EXPLODED VIEW.41PARTS LIST.43PARTS DESCRIPTIONS.54SPECIFICATIONS.55ContentsAccessoriesCautions System configurationUnplug the power cord from the power outlet then,while holding the ENTER key depressed, plug thepower cord again.Please note that resetting

7、 the microcomputer clears thecontents stored in memory and returns it to the conditionwhen it left the factory.Operation to resetThe microcomputer may fall into malfunction (impossibilityto operate, erroneous display, etc.) when the power cord isunplugged while power is ON or due to an external fact

8、or.In this case, execute the following procedure to reset themicrocomputer and return it to normal condition.(Main unit only)ENTERSYSTEMMAIN UNITDESTINATIONSPEAKERSP CORD PARTS NoXD-V333RXD-V333MILS-N373E30-5829-08XD-V333SRXD-V333SM2LS-N373E30-5829-08XD-V535RXD-V535MIVLS-N573E30-5829-08XD-V535-GRRXD

9、-V535-GRM1LS-N573-GRE30-5829-08XD-V535SRXD-V535SM2LS-N573E30-5829-08XD-V535S-HRXD-V535S-HM2LS-N573-HE30-5829-08XD-V636RXD-V636MILS-N653E30-5475-08XD-V737RXD-V737MIVLS-N773E30-5876-08XD-V737SRXD-V737SM2LS-N773E30-5876-08See the following tableRXD-V333/V535/V636/V7373EXTERNAL VIEWAC 220-240VAC 110-120

10、VGNDFM75 AMANTENNADIGITALVIDEO OUTREC OUTDVD/VIDEO INPUTOPTICALOUTLRLR+-+-FRONT SPEAKERSLOW(6-16)FRONT SPEAKERSHIGH(6-16)RLLRSURROUND SPEAKERS(8-16) +-ON OFFSURROUNDRLLock terminal board(E70-0052-05)Cover(F07-1692-01)Metallic cabinet (A01-3739-11)Slide switch(S62-0001-05)Lock terminal board(E70-0125

11、-05)Pin jack(E63-1010-05)Pin jack (E63-0137-15)Lock terminal board(E70-0126-05) Slide switch(S62-0077-05) Oscillating module(W02-1114-15)DISASSEMBLY FOR REPAIRBOTTOM SIDEHOW to open the tray if not comes out.(1) Turn the friction arm counterclockwiseusing a screw driver and the like. (2) Pull out th

12、e tray frontwards by hand when the tray comes just out.Illustration is RXD-V737(M).RXD-V333/V535/V636/V7374CIRCUIT DESCRIPTION1. Initialization1-1 Setting of the Initial ConditionsWhile pressing the ENTER key, plug the AC CORD intoAC wall outlet.1-2 Initializing Operation A microcomputer is initiali

13、zed for start when the AC poweris turned on when pressing the ENTER key. At that time,CD and cassette mechanisms are also initialised. During the initial conditions, the display shows (INITIAL-IZE( and after that it will be returned to standby condition. 1-3 Initial Items(1) AMPLIFIER POWER ON/STAND

14、BYSTANDBY VOLUME14 BALANCECENTER INPUT SELECTORTUNER SOURCE DIRECTOFF MUTEOFF AUTO POWER SAVEOFF AUX(DVD/VIDEO)INPUT LEVEL-3 DISPLAY MODEAUTO BEEP SOUNDON(2) TUNER BANDFM FREQUENCYLOWEST FREQUENCY AUTO/MONOAUTO PRESET CHANNEL“-“ ch(3) CASSETTE DECK REVERSE MODEREVERSE TAPE A/BB TAPE DIRECTIONFORWARD

15、(4) AUX (DVD/VIDEO) DVD/VIDEO DISPLAYDVD(5) OTHER CLOCK12:00am Program Timer RecodingON TIME 12:00amOFF TIME 12:00am Program Timer PlayON TIME 12:00amOFF TIME 12:00am Program on ModeOFF SLEEP TIMEROFF(6) Equalizer EqualizerOFF CUSTOM EQ.13FLAT EX. BASSON 3D LEVELOFF1-4 Mechanism Initialization1-4-1

16、CD Mechanism If a mechanism error occurs “C ERR“ is indicated on thedisplay.1-4-2 DECK mechanism When the initial condition becomes NG for the thirdtime,decide the error.The error condition is displayed as X ERR on the display.1-4-3 Error display If both mechanism (CD/DECK) error occur, the display

17、isindicated as follows. C X ERR2. Destination List of TunerSetTypeBANDTuning FrequencyChannelTUNERRangeSpaceIFRFEmphasisM,YK2FM87.5MHz108.0MHz100kHz+10.7MHz25kHz1AM530kHz1610kHz10kHz+450kHz10kHz0FM87.5MHz108.0MHz100kHz+10.7MHz25kHz1M2K3MW530kHz1610kHz10kHz+450kHz10kHz 0SW5.9MHz17.9MHz5kHz+450kHz5KHz

18、0M,Y,XE1FM87.5MHz108.0MHz50kHz+10.7MHz25kHz0AM531kHz1602kHz9kHz+450kHz9kHz03. Test Mode3-1 Setting of the Test ModeTAPE MODETAPE A () key+AC-ONCD MODEDISC3 key+AC-ONSUB CLOCK OSCDIAGNOSISMENU key + AC -ONThe oscillation diagnosis(existence of oscillation and measurement of period) of a sub clock is

19、per-formed before the test mode is entered. If the diagnosis result is OK, the system enters the test mode.If the diagnosis result is NG, the oscillation of the sub clock is diagnosed again. If the result is OK, thesystem enters the test mode. If the diagnosis result is continuously NG 5 times, the

20、system stops with“ERR1“ and “ERR2“ displayedRXD-V333/V535/V636/V7375CIRCUIT DESCRIPTION3-2 Cancel of the test modeBy turning the power off, the system is initialized and the test mode is canceled.3-3 Contents of the Test Mode3-3-1 Deck Test ModeKEYDISPLAYOPERATIONCD-PLAY/PAUSE05 : : Tracking-servo o

21、n.(Change the mode 05 and 03 03 :Tracking-servo off.alternately by the stop key.)DISC 1 01 :STOPAdjustment value/mean value(Cyclically changed in the07TB valueFB valuestop mode only.)08TG valueFG value09FE valueRF value10TE valueVC valueSTOP 01 :Stop (Press it 1time.)Cancel the test mode. (Press it

22、2 times.)TAPE EQ. Ex.0102CD track no. up.REVERSE MODE Ex.0201CD track no. down.KEYDISPLAYOPERATIONREC/ARMNormal displayIf the REC/ARM key is pressed, the system record for 4 seconds. Then, it rewinds to the RECstarting position and plays back automatically. If the REC/ARM key is pressed, during the

23、4seconds REC operation,the system records further for 4 seconds, then returns to the startingposition of the first 4 seconds REC operation and plays back.HALF SWDISPLAYHALF SWDISPLAYA PACK SW“T“ (The first dot)ACrO2 SW“A“(The second dot)B PACK SW“P“(The third dot)BRVS REC SW“E“(The fourth dot)B FWD

24、SW“T“(The sixth dot)B CrO2 SW“E“(The seventh dot)A PLAY SW“Moon“(Segment)B PLAY SW“Sun“(Segment)*Mechanism SW Detection3-3-2 CD Test ModeInput VoltageTYPE 1(V)Pin 910.001.23RXD-V5351.252.48RXD-535S2.503.73RXD-737S3.755.00RXD-636Input VoltageKEY3KEY2KEY1(V)Pin 94Pin 95Pin 970.000.23REV.MODE-POWER0.26

25、0.75RECEX.BASSDISPLAY/DEMO0.791.29TAPE EQ.CD PLAY/PAUSETUNING MODE1.331.84OPEN/CLOSEBANDMENU1.882.38DISC SKIPTAPE B FWD/REV PLAYSOUND2.422.93DISC3TAPE A FWD/REV PLAYSELECT2.963.45DISC2AUXBACK3.493.98DISC1STOPENTER4.014.52-4.544.80KEY OFFKEY OFFKEY OFFRXD-V333/V535/V636/V7376CIRCUIT DESCRIPTION4. Mic

26、roprocessor: M30622MA-A76FP4-1 Microprocessor Periphery Block DiagramX28,IC1DECK SYSTEM IC(CXA1498S)6X13,IC13DECK MECHASYSTEM IC(M62498AFP)X14,IC15FL DRIVER(LC75711NED)4X13,IC250M30622MA-A76FP2X14,ED1Vaccume FluorescentDisplay(HNA-15MM18T)TUNER PACK3PLL IC(LC72131)X32,IC536DSP IC(CXD3008Q)35CD MECHA

27、7CDM-35X32,IC12X32,IC9MPEG DECODERVIDEO AUDIO DACX32,IC11X32.IC13S-DRAMRAM4-2 Key MatrixThe input voltage value : for 4.8V in a standard voltage4-3 Discrimination of DestinationRXD-V333/V535/V636/V7377CIRCUIT DESCRIPTION4-4 Pin Description of MicroprocessorPin No.Pin NameI/ODescriptionACTIVEHL1CD5VO

28、Control port of +5V AVR(X13,IC4).OFFON2CE2IUnused.3SDISD detection input.4STIStereo detection input.5PLL CEOPLL IC chip enable.6ECHO MUTEOControl port of audio muting for echo.OFFON7PLL CLKOPLL IC clock output.8BYTE-Connected to GND.9CNVSS-Connected to GND.10XCINITimer clock input(32.768kHz).11XCOUT

29、OTimer clock output(32.768kHz).12RSTIReset signal input.NORMALRESET13X OUTOMain clock output(10MHz).14VSS-Connected to GND.15X INIMain clock input(10MHz).16VCC-u-com power supply(+5.0V).17NC-Connected to VCC.18REMISignal input of remote control.19ESS STIMPEG CS20ESS STIMPEG CS21CEIBack up detection

30、input.AC ONAC OFF22BEEP SOUNDOBeep sound output.23PLL DOIPLL IC data input.24B PLAYIDetection switch input of head position for B deck25R RECIBdeck reverse recording prohibition detection switch26B PACKIBdeck cassette tape detection switch input.27A PLAYIDetection switch input of head position for A

31、 deck28ESS CLKIClock input from MPEG decoder(X32,IC12).29ESS DINIData input from MPEG decoder(X32,IC12).30ESS DOOData output to MPEG decoder(X32,IC12).31FL DATAOData output to VFD dot driver.32A PACKIAdeck cassette tape detection switch input.33FL CLKOClock output to VFD dot driver.34FL CEOChip enab

32、le output to VFD dot driver.35FL RSTOReset signal output to VFD dot driver.36F RECIBdeck forward recording prohibition detection switch.37B CrO2IBdeck CrO2 detection switch input.CrO2Normal38A CrO2IAdeck CrO2 detection switch input.CrO2Normal39A SOLOAdeck solenoid control.40CPMODeck capstan motor co

33、ntrol.41B SOLOBdeck solenoid control.42NOROBdeck Normal/CrO2 changeover control.NORMALCrO243BIASODeck bias on/off changeover control.ONOFF44NC-Unused.45R/PODeck recording/playback changeover control.RECORDINGPLAY46A/BODeck A/B changeover control.B DECKA DECK47A EQOAdeck play back equalizer control.4

34、8REC MUTEODeck recording mute control.MUTE ON49LINE MUTEODeck line mute control.MUTE ON50B EQOEqualizer control of B deck play back.RXD-V333/V535/V636/V7378CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescriptionACTIVEHL51JOG 2IMulti control jog input2 .52JOG 1IMulti control jog input1 .53VOL 2IVolume encod

35、er input 2 .54VOL 1IVolume encoder input 1 .55LED STBYOControl port of standby LED.OFFON56LED TIMEROControl port of timer LED.OFFON57LED SVCOOControl port of SVCO LED.OFFON58LED VCOOControl port of VCO LED.OFFON59LED PBCOControl port of PBC LED.OFFON60ECHO 3OSelection of echo 3.61ECHO 2OSelection of

36、 echo 2.62VCC-power supply(+5.0V).63ECHO 1OSelection of echo 1.64VSS-Connected to GND.65TD SWITraverse down switch input port of CD mechanism.66TU SWITraverse up switch input port of CD mechanism.67PHTRIstop switch input of CD mechanism.68PS SWITray position & disc detector switch input port of CD m

37、echanism.69OPEN SWICD open detection switch input.70CLOSE SWICD close detection switch input.71OPEN OCD motor control output.72CLOSE OCD motor control output.73RTLORotary motor opposite direction(CCW) output.74RTRORotary motor positive direction(CW) output.75BRKMOCD motor control output(brake).76TU

38、ON/OFFOUnused.77DC OFFOPower control of CD DSP IC. ONOFF78REC OUT MUTEOControl port of audio muting for video rec output.MUTE OFFMUTE ON79A-MUTEOControl port of audio muting.80ATTO-10dB attenunation output.ONOFF81CD PROTOControl port of CD protection.82POWEROPower relay control. 83SP RELAYOControl p

39、ort of speaker relay.84EV CLKOClock output to E.volume.85EV DATAOData output to E.volume.86EMPHASISOTuner emphasis output.87E2PROM DATAOExpander ROM data output.88E2PROM CLKOExpander ROM clock output.89PROTECTIDetection port of protection.90SPEANAIInput port of music signal.91TYPEIDiscrimination of

40、tuner destination.92BPHIBdeck reel sensor input.93APHIAdeck reel sensor input.94,95KEY3,KEY2IA/D key input(key3,key2).96AVSS-Connected to GND.97KEY1IA/D key input(key1).98VREF-A/D reference voltage input.99AVCC-u-com power supply(+5.0V).100PLL DATAOPLL Idata output.RXD-V333/V535/V636/V7379ADJUSTMENT

41、CD player adjustmentFIG.(d)No.ITEMINPUTSETTINGSOUTPUTSETTINGSALIGNMENTPOINTSALIGN FORPLAYERSETTINGSNote:Type 4 disc : SONY YEDS-18 Test Disc or equivalent.LPF: Around 47 k+ 390 pF or so.Step 14 are in Test Mode.11. While pressing the “DISC 3“ key, turn the power on to enter the test mode.2. Load a d

42、isc on disc 1 tray.LASER CURRENTCHECKTest discType 4Connect the DC volt-meter to CN6(pin1 and 2) on X32.0.50.2VPress thePLAY/PAUSE key,then confirm that thedisplay is 03 or 05.2FB BIASTest discType 4Connect an oscilloscopeas follows.+SIDE: RF(X32, CN1, 1)GND: VC(X32, CN1, 4)VR 1Optimum eyepatternPre

43、ss thePLAY/PAUSE key,then confirm that thedisplay is 03 or 05.(d)RF signal in test mode (PLAY).Perform the tangential and focusing offset are focusedinto one point on the display. The crossing points aboveand below the center shall also be looked clearly. RF signal: AC coupledRXD-V333/V535/V636/V737

44、10ADJUSTMENTRVSFWDNO.ITEMINPUT SETTINGOUTPUT SETTINGCASSETTE TAPE DECK SETTINGALIGNMENT POINTSALIGN FORFIG.0dBs = 0.775VI Cassette mechanism unit (Adjustment of the REC / PLAY head)(1)Demagnetization and cleaningPower : OFF Demagnetization, cleaning, PLAYRecording head, erase head, capstan pinch rol

45、lerDemagnetize 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, -10dB(B)PLAYAdjust the output to maximum and adjust the azimuth ad

46、justment screw for the Lissajours waveform pattern of the oscilloscope to become close to a 45 straight line.II PC BOARD ADJUSTMENT(1)TAPE SPEED (NORMAL)TCC-110MTT-111SCC-17273kHZ(B)PLAY(B DECK)PLAY(B DECK)VR5Adjust the tape speed so that 3kHz is obtained at the center of the tape.III PC board adjus

47、tment.(1)PLAYBACK LEVELTCC-130(B)VR 3 (L)VR 4 (R)Adjust the playback output to 2.5dBs.(2)BIAS CURRENT(A)Adjust the AG for the output of the DECK to become -20dBs at 400Hz and 12.5 kHz.(B)REC PLAYVR 1 (L)VR 2 (R)Record 400Hz and 12.5kHz alternately, and adjust the bias current adjustment potentiometer for the playback levels to become the s