Kenwood-RXDV737-cs-sm 维修电路原理图.pdf

《Kenwood-RXDV737-cs-sm 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Kenwood-RXDV737-cs-sm 维修电路原理图.pdf（43页珍藏版）》请在收音机爱好者资料库上搜索。

1、70%MINI HiFi COMPONENT SYSTEM 2000-8/B51-5654-00 (K/K) 707DISCDISCDISCSTANDBYTIMERDISPLAY/DEMOMENUSELECTBACKENTERSOUNDCONTROLTUNINGMODEMULTICONTROLREC/ARMREVERSEMODETAPE EQ.PHONESDISC SKIPOPEN/CLOSEEX.BASSPUSHOPENPUSHOPENVOLUMECONTROLMICMICVOL.MIN MAXSVCDPBCVCDRXD-V333/V333S/V535/V535-GR/V535S/RXD-V

2、535S-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 CFR 1040. 10, Chapter 1, subchapter J.D

3、ANGER : 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)

4、Illustration is RXD-V737(M).RadioFans.CN 收音机爱 好者资料库FM indoor antenna (1)(T90-0836-05)Speaker cordsBattery cover (A09-1192-08)Remote control unit (1)(A70-1415-05): RC-V535 Use to adapt the plug on the power cord to the shape of the wall outlet.(Accessory only for regions where use is necessary.)AC pl

5、ug adaptor (1)(E03-0115-05)M type onlyProvided in the speaker packageXD-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.3CIRCUI

6、T DESCRIPTION.4ADJUSTMENT.9WIRING DIAGRAM.11PC BOARD . 12SCHEMATIC DIAGRAM .21EXPLODED VIEW .41PARTS LIST.43PARTS DESCRIPTIONS .54SPECIFICATIONS .55ContentsAccessoriesCautionsSystem configurationUnplug the power cord from the power outlet then,while holding the ENTER key depressed, plug thepower cor

7、d again. Please note that resetting 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 pow

8、er is ON or due to an external factor.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-V53

9、5MIVLS-N573E30-5829-08XD-V535-GRRXD-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 tableRadioFans.CN 收音机爱 好者资料库

10、RXD-V333/V535/V636/V7373EXTERNAL VIEWAC 220-240VAC 110-120VGNDFM75AMANTENNADIGITALVIDEO OUTREC OUTDVD/VIDEO INPUTOPTICALOUTLRLR+-+-FRONT SPEAKERSLOW(6-16)FRONT SPEAKERSHIGH(6-16)RLLRSURROUND SPEAKERS(8-16) +-ONOFFSURROUNDRLLock terminal board(E70-0052-05)Cover(F07-1692-01)Metallic cabinet (A01-3739-

11、11)Slide switch(S62-0001-05)Lock terminal board(E70-0125-05)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 counterclock

12、wise using a screw driver and the like. (2) Pull out the 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

13、.1-2 Initializing Operation A microcomputer is initialized 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 c

14、ondition. 1-3 Initial Items(1) AMPLIFIER POWER ON/STANDBYSTANDBY 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 DEC

15、K REVERSE MODEREVERSE TAPE A/BB TAPE DIRECTIONFORWARD(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.

16、 BASSON 3D LEVELOFF1-4 Mechanism Initialization1-4-1 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

17、 both mechanism (CD/DECK) error occur, the display isindicated as follows. C X ERR2. Destination List of TunerSetTypeBANDTuning FrequencyChannelTUNERRangeSpaceIFRFEmphasisM,YK2FM87.5MHz108.0MHz100kHz+10.7MHz25kHz1AM530kHz1610kHz10kHz+450kHz10kHz0FM87.5MHz108.0MHz100kHz+10.7MHz25kHz1M2K3MW530kHz1610k

18、Hz10kHz+450kHz10kHz 0SW5.9MHz17.9MHz5kHz+450kHz5KHz0M,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 oscill

19、ation and measurement of period) of a sub clock is 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 th

20、e diagnosis result is continuously NG 5 times, the system stops withERR1 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 ModeKEYDISPL

21、AYOPERATIONCD-PLAY/PAUSE05 : : Tracking-servo on.(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 (P

22、ress it 1time.)Cancel the test mode. (Press it 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 automatica

23、lly. If the REC/ARM key is pressed, during the 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 SWT (The first dot)A CrO2 SWA(The second dot)B PACK SWP(The thir

24、d dot)B RVS REC SWE(The fourth dot)B FWD SWT(The sixth dot)B CrO2 SWE(The seventh dot)A PLAY SWMoon(Segment)B PLAY SWSun(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 9

25、5Pin 970.000.23REV.MODE-POWER0.260.75RECEX.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/V6

26、36/V7376CIRCUIT DESCRIPTION4. Microprocessor: 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)X3

27、2,IC536DSP IC(CXD3008Q)35CD MECHA7CDM-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

28、 NameI/ODescriptionACTIVEHL1CD5VOControl 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.10XCINITim

29、er clock input(32.768kHz).11XCOUTOTimer 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

30、STIMPEG CS21CEIBack up detection input.AC ONAC OFF22BEEP SOUNDOBeep sound output.23PLL DOIPLL IC data input.24B PLAYIDetection switch input of head position for B deck25R RECIB deck reverse recording prohibition detection switch26B PACKIB deck cassette tape detection switch input.27A PLAYIDetection

31、switch input of head position for A 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 PACKIA deck cassette tape detection switch input.33FL CLKOClock output

32、 to VFD dot driver.34FL CEOChip enable output to VFD dot driver.35FL RSTOReset signal output to VFD dot driver.36F RECIB deck forward recording prohibition detection switch.37B CrO2IB deck CrO2 detection switch input.CrO2Normal38A CrO2IA deck CrO2 detection switch input.CrO2Normal39A SOLOA deck sole

33、noid control.40CPMODeck capstan motor control.41B SOLOB deck solenoid control.42NOROB deck 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 DECK

34、47A EQOA deck play back equalizer control.48REC 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 1IMul

35、ti control jog input1 .53VOL 2IVolume encoder 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

36、3OSelection of echo 3.61ECHO 2OSelection of 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 positio

37、n & disc detector switch input port of CD mechanism.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.

38、75BRKMOCD motor control output(brake).76TU 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.82POWE

39、ROPower relay control. 83SP RELAYOControl port 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 por

40、t of music signal.91TYPEIDiscrimination of tuner destination.92BPHIB deck reel sensor input.93APHIA deck 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 Id

41、ata output.RXD-V333/V535/V636/V7379ADJUSTMENTCD 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

42、power on to enter the test mode.2. Load a disc 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)GN

43、D: VC(X32, CN1, 4)VR 1Optimum eyepatternPress 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. R

44、F signal: AC coupledRXD-V333/V535/V636/V73710ADJUSTMENTRVSFWDNO.ITEMINPUT SETTINGOUTPUT SETTINGCASSETTE TAPE DECK SETTINGALIGNMENT POINTSALIGN FORFIG.0dBs = 0.775V I Cassette mechanism unit (Adjustment of the REC / PLAY head)(1)Demagnetization and cleaningPower : OFF Demagnetization, cleaning, PLAYR

45、ecording 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, -10dB(B)PLAYAdjust the

46、 output to maximum and adjust the azimuth adjustment 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-111 SCC-17273kHZ(B)PLAY(B DECK)PLAY(B DECK)VR5Adjust the tape speed so that 3kHz is obtained

47、 at the center of the tape.III PC board adjustment.(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 ad

48、just the bias current adjustment potentiometer for the playback levels to become the same.AC 220-240VAC 110-120VGNDFM75AMANTENNADIGITALVIDEO OUTREC OUTDVD/VIDEO INPUTOPTICALOUTLRLROscilloscopeAC voltmeterFrequency counterAC voltmeterAG(A)(B)X13, CN1L-PLAYR-PLAYGND28293031Measurement Equipment Connec

49、tionsCassette Deck adjustment11RXD-V333/V535/V636/V737WIRING DIAGRAMPRIMARY UNITCASSETTEMECHANISM(D40-1661-05)RXD-737/V737S(X28-304X-XX)RXD-V636RXD-V535/V535S/V535-GR/V535S-HRXD-V333/V333S(X13-) (B/6)(X13-7XXX-XX) (A/6)SUB CIRCUIT UNITMICMECHANISMCD PLAYER UNIT(X32-3860-20)(X13-) (D/6)(X07-3190-22)

50、(A/4) : RXD-V737(M,I) / V737S(M)(X07-3192-10) (A/4) : RXD-V737(V)(X07- ) (C/4)(X07- ) (B/4)+/-B SUPPLY, AVR(X07- ) (D/4)SECONDARY UNIT(X13- ) (C/6)+/-B SUPPLY, AVR(X00-30XX-XX ) (A/2)(X07-3XXX-XX) (A/2)POWER AMPLIFIER(X07- ) (B/2)SECONDARY UNIT(X00- ) (B/2)(X14-7XXX-XX) (A/2)DISPLAY UNIT (FL)(X14-)