Kenwood-HM332-cs-sm 维修电路原理图.pdf

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1、70%MICRO HiFi COMPONENT SYSTEMRXD-M32SERVICE MANUAL(HM-332) 2000-5/B51-5619-00 (K/K) 3668downstandby/ timerTAPECD00AUTO REVERSE CASSETTE DECKHM-332phonesCD62TAPE3STOPvolume/multi control7TAPE EQ.o.t.e.TAPE recTUNER/bandupAUXsound4menuset/demoTEXTTEXTDIGITAL AUDIODIGITAL AUDIOCOMPACTCOMPACTKnob(K29-7

2、780-08)Panel(A29-1099-08)Front glass (B10-3591-08)Indicator(B12-0396-08)Dressing panel *(A21-)Escutcheon(B07-2517-08)Knob(K29-7789-08)Knob *(K29-)Indicator(B12-0397-08)Miniature phone jack(E11-0200-05)Although this service manual is described MD circuit description, it is no concern withRXD-M32(CD/C

3、ASSETTE receiver)In compliance with Federal Regulations, following are repro-ductions of labels on, or inside the product relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open

4、 and interlock defeated.AVOID DIRECT EXPOSURE TO BEAM* Refer to parts list on page39. RadioFans.CN 收音机爱 好者资料库FM (T90-0861-05)indoor antenna (1)AM (T90-0852-05)loop antenna (1)Remote control unit (1)Batteries (R6/AA) (2)Europe Battery cover(A09-1161-08)and U.KOther countriesAC plug adaptor (1)(E03-01

5、15-05)RXD-M322CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES . 2DISASSEMBLY FOR REPAIR.3CIRCUIT DESCRIPTION.4ADJUSTMENT.15HOW TO READ THE PARTS LIST.18PC BOARD .19SCHEMATIC DIAGRAM .23EXPLODED VIEW .37PARTS LIST.39SPECIFICATIONS .Back coverContentsAccessoriesCautionsdownstandby/ timerTAPECD00AUTO REVE

6、RSE CASSETTE DECKHM-332phonesCD62TAPE3STOPvolume/multi control7TAPE EQ.o.t.e.TAPE recTUNER/bandupAUXsound4menuset/demoTEXTTEXTDIGITAL AUDIODIGITAL AUDIOCOMPACTCOMPACTSTOP7Operation to resetThe microcomputer may fall into malfunction (impossibil-ity to operate, erroneous display, etc.) when the power

7、cord is unplugged while unit is ON or due to an externalfactor. In this case, execute the following procedure toreset the microcomputer and return it to normal condi-tion.Unplug the power cord from the power outlet then,while holding the set/demo key depressed, plugthe power cord again.Please note t

8、hat resetting the microcomputer clearsthe contents stored in and it returns to condition whenit left the factory.SYSTEMMAIN UNITDESTINATIONSPEAKERCOLORHM-332-LRXD-M32-LETHMX(L)LS-M32-LBLUEHM-332E-LRXD-M32E-LE2(L)LS-M32-LBLUEHM-332-SRXD-M32-SKPETHMX(S)LS-M32-SSILVERHM-332E-SRXD-M32E-SE2(S)LS-M32-SSIL

9、VERHM-332-YRXD-M32-YE1T1M1(Y)LS-M32-YYELLOWHM-332E-YRXD-M32E-YE3(Y)LS-M32-YYELLOWHM-332-HRXD-M32-HETHMX(H)LS-M32-HGRAY HM-332E-HRXD-M32E-HE2(H)LS-M32-HGRAY HM-332-WRXD-M32-WE(W)LS-M32-WWHITEHM-332E-WRXD-M32E-WE2(W)LS-M32-WWHITEHM-332-LSRXD-M32-LSKP(LS)LS-M32-LSSKY BLUEREMOTE CONTROLLERMODEL NAMEMODE

10、LDESTINATIONSCOLORA70-1380-08RC-F0100RXD-M32-L/LSKPMX BLUEA70-1381-08RC-F0100ERXD-M32-LHTEE2BLUEA70-1394-08RC-F0100RXD-M32-SKPXWHITEA70-1395-08RC-F0100RXD-M32-S/HMXSILVERA70-1396-08RC-F0100ERXD-M32-YT1E1E3YELLOWA70-1397-08RC-F0100ERXD-M32-W/S/HHTEE2SILVERA70-1398-08RC-F0100RXD-M32-YM1YELLOW -SSystem

11、 ConfigurationRemocon ConfigurationRadioFans.CN 收音机爱 好者资料库RXD-M323EXTERNAL VIEWLRAUXINSPEAKERS(616)GNDAMANTENNAFM75+-LROPTICALOUTLock terminal board (E70-0052-05) or(E20-0321-05)Cover *(F07-)Top plate(A52-0387-08)Pin jack(E63-0095-05)Oscillating module(W02-1114-05)Side plate R *(A50-)Side plate L *(

12、A50-)Lock terminal board (E70-0053-05)AC power cord bushing(J42-0083-05)AC power cord *(E30-)* Refer to parts list on page39. FRONTCAMCAMHow to open the tray if not comes out.(1) From the bottom side of the CD mechanism, use ascrew driver or the like to turn the cam slightly coun-terclockwise.(2) Pu

13、ll out the tray front wards by hand when the traycomes just out.DISASSEMBLY FOR REPAIRRXD-M324CIRCUIT DESCRIPTIONReceiving Frequency ChannelSetType BANDRangeSpaceIFRFJJFM76.0MHz90.0MHz100kHz-10.7MHz25kHzAM531kHz1629kHz9kHz+450Khz9kHzK,PK1FM87.5MHz108.0MHz100kHz+10.7MHz 25kHzAM530kHz1700kHz10kHz+450k

14、Hz10kHzK2FM87.5MHz108.0MHz100kHz+10.7MHz 25kHzAM530kHz1610kHz10kHz+450kHz10kHzM,YE1FM87.5MHz108.0MHz50kHz+10.7MHz 25kHzAM531kHz1602kHz9kHz+450kHz9kHzXE1FM87.5MHz108.0MHz50kHz+10.7MHz 25kHzAM531kHz1602kHz9kHz+450kHz9kHzE,TE1FM87.5MHz108.0MHz50kHz+10.7MHz 25kHzRDSAM531kHz1602kHz9kHz+450kHz9kHzTYPE R29

15、2 VOLTAGE VJ910k4.505K220k3.438M1100k2.500X47k1.600E,T12k0.536ITEMSSTATEREMARKSPOWEROFFBACK LIGHTHighVOLUME10BALANCECENTERAMPBASS0TREBLE0EX.BASSONLOUDNESSOFFINPUT SEL TUNERINPUT LEVEL0BANDFMLAST freq.LOWEST FREQ.TUNERLAST Preset- -ChannelAUTO/MONOAUTOPreset ChannelTEST FREQ.CLOCKAM 12:00E,T type 24H

16、PROG ONAM 12:00E,T type 24H(TIME)CLOCKPROG OFFAM 12:00E,T type 24HTIMER(TIME)SOURCETUNERPreset Channel1EXE MODEOFFOTT MODEOFFAM 7:00ASPOFFSLEEPOFFDIRECTIONFORWARDRVS MODEREVERSEDECKTAPE EQOFFOPERATIONSTOPMODEPLAY MODETRACKREPEATOFFCDRANDOMOFFOPERATIONSTOPMODEPLAY MODETRACKNONEMDREPEATOFFNONERANDOMOF

17、FNONEOPERATIONSTOPNONEMODE1. Initialization1-1 Setting of the Initial ConditionsWhile pressing the (STOP) key, plug the AC cord to ACwall outlet.1-2 Initializing OperationA microcomputer is initialized for start when the ACpower is turned on while pressing the STOP key.At that time, CD,MD and CASSET

18、TE mechanisms arealso initialized.During the initial conditions, the display shows INI-TIALIZE and after that it will be returned to standbyconditions.1-3 Initial Items1-4-3 MD mechanismIf a mechanism error occurs, M is indicated on thedisplay.MD disc is ejected from MD mechanism.1-4-4 If mechanisms

19、 (CD/DECK/MD) error occur, the displayis indicated as follows. CMXSERR1-4-5 TAPE door switch diagnosisIf switches (open/close) error occur, S is indicated onthe display.1-4 Mechanism Initialization1-4-1 CD MechanismIf a mechanism error occurs, C is indicated on the dis-play.1-4-2 DECK mechanismWhen

20、the initial condition becomes NG for the thirdtime, decide the error.The error condition is displayed as X on the display.2-1 Discrimination Port for DestinationAVdd = 5.0 v2. Destination List of TunerAVddR291100kR292U-COM95pin(TYPE)AUX MODEAUX Key+AC-ONTUNER MODETUNER (BAND) Key+AC-ONTAPE MODETAPE

21、PLAY Key+AC-ONCD MODECD PLAY Key+AC-ONMD UNIT MODEMD PLAY key + AC ON(MD version only)MD MECHA. MODEMD REC key +AC-ON3. Test Mode3-1 Setting of the Test ModeTAPE REC Key+AC-ONThe oscillation diagnosis(existenceof oscillation and measurement ofperiod) of a sub clock is performedbefore the test mode i

22、s entered. Ifthe diagnosis result is OK, the sys-tem enters the test mode. If thediagnosis result is NG, the oscilla-tion of the sub clock is diagnosedagain. If the result is OK, the sys-tem enters the test mode. If thediagnosis result is continuously NG5 times,the system stops withERR1 and ERR2 dis

23、played.SUB CLOCK OSCDIAGNOSISRXD-M325CIRCUIT DESCRIPTIONKEYDISPLAYOPERATIONCD-PLAY/PAUSE05 : ( : )Tracking-servo on.(Change the mode 05 and 0303 -:-Tracking-servo off.alternately by the stop key.)CD STOP01 -:-STOPAdjustment value/mean value(Cyclically changed in the07 / TB valueFB valuestop mode onl

24、y.)08 / TG valueFG value09 / FE valueRF value10 / TE valueVC valueMENUHI-SPEEDCD double speed operationNOR-SPEEDCD normal speed operationSKIP UPEx.0102CD track no. up.TAPE RECCD FF search.The pickup travels outward in the stop mode.SKIP DOWNEx.0201CD track no. down.MD RECCD FB search.The pickup trav

25、els inward in the stop mode.KeyDisplayDescriptionSTOP001:Stop the MD operation.SKIP UPEX : 01-02MDs track up operation.SKIP DOWNEX : 02-01MDs track down operation.SET/demoALL ERASEStop the MD operation.Start operation of all erase if disc is recordable.KEYDISPLAYOPERATIONSTOPNormal indicationP -P10

26、P20 P30 P40 MENUAUTOSTEREONormal indicationMANUALMONOMD RECTUNING DOWNTAPE RECNormal indicationTUNING UPSKIP DOWNP. chDOWNSKIP UPNormal indicationP. chUPKEYDISPLAYOPERATIONIf the REC/ARM key is pressed, the system record for 4 seconds.Then, it rewinds to the REC starting position and plays backTAPE

27、RECNormal displayautomatically. If the REC/ARM key is pressed, during the4 seconds REC operation,the system records further for 4 seconds, then returns to the starting positionof the first 4 seconds REC operation and plays back.KEYDISPLAYOPERATIONToneMAXSET/demoToneMAXCENTER MAX MIN ToneCENTERSKIP U

28、PNormal indicationEXBASSONLOUDNESS ONSOUND MODE OFF3-2 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 Tuner Test mode3-3-2 Aux Test Mode3-3-3 Deck Test Mode3-3-4 CD Test ModeThe CD tray is opened automatical

29、ly when the test mode is entered.4. MD Test Mode4-1 MD Unit ModeRXD-M326CIRCUIT DESCRIPTIONRepair(replace)TemperatureStandard SetEEPROM setvalue checkAuto pre adjAuto adjAuto Fab adj*EEPROM data write* Operation checkTEMPEEPROM_SET AUTO_YOBI AUTO_ADJ AUTO_FABCANCEL TEST MODE TEST-PLAY TEST-RECpickup

30、-1234567recording head-1mechanism-1234567pcb parts12345678MD microprocessor-1-234MD LSI-123456RF IC12345678EEPROM123456781. Preparation for AdjustmentYou have to carry out the following test mode items if replace MD mechanism, pickup, head and pc board.1-1 Procedure1. Short-circuit #4(vss) and #7(wp

31、) of IC1402(EEPROM).2. Set the unit to test mode and carry out the every adjustment in test mode.3. Stop the test mode by pressing the STOP key for 3 secs4. Remove the short circuit of IC1402. Carry out reset start.note: figures order of steps. - = no need.* Result of EEPROMOK_EEPROMWrite the data o

32、f setting values and AUTO-pre adjustment perfectly.WR_EEPROMWrite the data of setting values perfectly however not write AUTO pre-adjustment.Carry out AUTO-pre adjustment and write data to EEPROM.NG_EEPROMNot write the data of setting values.Check the connection of MD microprocessor and EEPROM.* Car

33、ry out the TEST-PLAY , TEST-REC and C1 error in test mode after AUTO_ADJ and AUTO_FAB. 2. Test Mode1. Holding down the MD rec button and turn the power on. (State A)2. To enter the test mode stop state(State B), press the STOP button.3. Load the playback disc 1(high reflection disc) or recording dis

34、c 2(low reflection disc).AMD TEST(Press STOP key)Btsm e- TEST MODE STOP STATE represents version of MD microcomputer(MD DISC LOAD IN)CLOADINGDAUT YOBI4-2 MD SECTION1-2 Test discTypeTest disc1High reflection discTGYS1 (SONY)2Low reflection discRecording minidisc3Head Adjusting transparentEntering the

35、 specific modeWhenever the button SKIP DOWNis pressed, the mode is changed.AUTO (AUT YOBI)(AUTO AJST)(AUT FAB)(RST YOBI)(RESULT)(MNU YOBI)(EEPROM SET)(MNU AJST)pre-adjustmentAUTO adjustmentRESULT SUBRESULTEEPROM settingMANUAL adjustmentMANUAL pre-adjustmentAUT(When the STOP button is pressed in the

36、D state, the indication B state isrestored.To restore D state again, press the SKIP DOWN key once. Canceling the test modeWhen the POWER button is pressed, the test mode is canceled, and the POWER OFF state is set. Test Mode1. AUTO pre-adjustment mode Automatic pre-adjustment is performed. (After ad

37、justment the grating adjustment mode is set.) The adjustment value is output with the aid of system controller interface.2. AUTO adjustment mode Automatic adjustment is performed. The adjustment value is output with the aid of system controller interface. Continuous playback is performed. (Error rat

38、e indication, jump test)4. RESULT sub-mode The measurement value, set value and calculated value are indicated. The set value is changed manually (in servo OFF state).3. AUTO FOCUS BIAS adjustment Focus bias adjustment is performed auto matically.5. RESULT mode (final adjustment) The set value (afte

39、r calculation) is indicated. The set value is changed manually (in servo OFF state).6. MANUAL pre-adjustment mode RF side manual adjustment is performed. Focus and tracking signal ATT manual adjustment is performed. Focus and tracking signal offset setting is performed.7. MANUAL adjustment mode Focu

40、s and tracking signal ATT manual adjustment is performed.8. EEPROM setting mode EEPROM setting9. TEST-PLAY mode Continuous playback from the specified address is performed. C1 error rate measurement.10. TEST-REC mode Continuous recording from the specified address is performed. Change of record lase

41、r output (servo gain is also changed according to laser output)11. EJECT mode TEMP setting (of EEPROM setting)1. AUTO pre-adjustment mode (Low reflection disc only)Step No.Setting MethodRemarksDisplayStep 1Test mode STOP state t s m e Step 2Press once the SKIP DOWN( ) button.AUTO pre-adjustment menu

42、 AUT_ YOBI_ _ _ Step 3Press once the MD PLAY button.The slide moves to the innermost periphery, and automatic : _ _ _ _ _ _ _ pre-adjustment is started.During automatic adjustment changes as follows.HAoRFgSAgSBgPTGPCHGTGGCHRCGSEGRFGSAGHAOHEOTCOLAOEnd of adjustmentIf adjustment is OK, Step 4.If adjus

43、tment is NG, Step 5.Step 4Grating adjustment, _ C O M P L E T E _ adjustment value outputPress once the MD STOP button. STEP 2Step 5Adjustment value output AUT YOBI Press once the MD STOP button. STEP 2 AUTO pre-adjustment menu : Adjustment name, : Address2. AUTO adjustment modeStep No.Setting Metho

44、dRemarksDisplayStep 1Test mode STOP state t s m e Step 2Press the SKIP DOWN( ) button two times.AUTO adjustment menu A U T O _ A J S T _ Step 3Press once the MD PLAY button.The slide moves to the innermost periphery, and automatic : _ _ _ _ _ _ adjustment is started.In case of high reflection disc c

45、hanges as follows.PEGHAGcase of low reflection disc changes as follows.PEGLAGGCGGEGLAGEnd of adjustmentIf adjustment is OK, Step 4.If adjustment is NG, Step 7.Step 4Adjustment value output C O M P L E T E Press the MD PLAY button.STEP 5Press the MD STOP button.STEP 2Step 5Continuous playback (groove

46、 section) ac Step 6Press the MD STOP button.STEP 2 AUTO adjustment menuStep 7Adjustment value output C a n t _ A D J . Press the MD STOP button.STEP 2 AUTO adjustment menu : Adjustment name, : Measurement value, : AddressRXD-M327CIRCUIT DESCRIPTIONRXD-M328CIRCUIT DESCRIPTION3. AUTO FAB adjusting mod

47、eStep No.Setting MethodRemarksDisplayStep 1Test mode STOP stateStep 2Press the SKIP DOWN( ) button three timesAUTO FAB adjustment menu_AUT_FAB_ _Step 3Press the MD PLAY button 1 timeEnd of automatic adj. step 4High reflection disc step 5Step 4Press the MD STOP buttonAUTO FAB adjustment menu, step 2S

48、tep 5Message output for 1 sec. AUTO FAB.Adjustment menu(high reflection disc) : measurement value : FAB value in measurement, : C1 error value in measurement, : FAB value If the STOP button is pressed twice while the AUTO FAB adjustment is displayed, the state is change to the TEST mode STOP state.S

49、tep 1Test mode STOP state t s m e Step 2Press the SKIP DOWN(4) button 4 times.RESULT sub-menu _ R S T _ Y O B I _ Step 3Press once the MD PLAY button.Indication of measurement value R F G : _ _ _ _Step 4Press once the SKIP DOWN(4) button. Indication of measurement value R C G : _ _ _ _Step 5Press on

50、ce the SKIP DOWN(4) button. Indication of measurement value P T G : _ _ _ _ _ Step 6Press once the SKIP DOWN(4) button. Indication of measurement value G T G : _ _ _ _ _ Step 7Press once the SKIP DOWN(4) button. Indication of measurement value P C H : _ _ _ _ Step 8Press once the SKIP DOWN(4) button