Kenwood-X-34-56-Service-Manual电路原理图.pdf

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1、This product uses Lead Free solder.This product complies with the RoHS directive for the European market.SERVICE MANUAL 2008-1 CREATED IN JA PANB53-0608-00 (N) 0X34-56xx-xxNew ELECTRIC UNIT (X34-) for 2008 CD RECEIVERELECTRIC UNITs for the following 2008 CD receivers which are produced after Novembe

2、r of 2007 are changed as follows. This service manual is only for the changed new ELECTRIC UNITs.DESTI-NATIONDISPLAYTYPEMODEL OLD X34- NEW X34-SERIAL No.FROMORIGINALSERVICE MANUALK 7-SEG LCD KDC-138 X34-5640-10 X34-5670-10 71109301 / 71200001 KDC-138/.K 7-SEG LCD KDC-138CR X34-5640-11 X34-5670-11 71

3、200001 KDC-138/.K 14-SEG VFD KDC-MP208 X34-5640-14 X34-5670-14 71103501 / 71208401 KDC-MP208/.K 14-SEG VFD KDC-MP238 X34-5640-12 X34-5670-12 71106402 / 80100001 KDC-MP208/.K 14-SEG VFD KDC-MP238CR X34-5640-13 X34-5670-13 71200001 / 80100001 KDC-MP208/.M 7-SEG LCD KDC-139 X34-5640-21 X34-5670-21 7111

4、0201 KDC-138/.M 7-SEG LCD KDC-139S X34-5640-21 X34-5670-21 - KDC-138/.M 14-SEG VFD KDC-MP239 X34-5640-23 X34-5670-23 71200001 KDC-MP208/.M 14-SEG VFD KDC-MP3039 X34-5640-23 X34-5670-23 - KDC-MP208/.M 14-SEG VFD KDC-MP339 X34-5640-23 X34-5670-23 - KDC-MP208/.M 14-SEG VFD KDC-MP339S X34-5640-23 X34-56

5、70-23 - KDC-MP208/.M 14-SEG VFD KDC-MP439 X34-5640-22 X34-5670-22 V1100701 KDC-MP208/.E 14-SEG VFD KDC-241SA X34-5652-70 X34-5682-70 V1101001 KDC-241SA/.E 14-SEG VFD KDC-241SG X34-5652-70 X34-5682-70 W0100001 KDC-241SA/.E 14-SEG VFD KDC-W241AY/GY X34-5652-71 X34-5682-71 V1110501 KDC-W241AY/.E 14-SEG

6、 VFD KDC-W3041A/G X34-5652-72 X34-5682-74 V1101601 KDC-W241AY/.E 14-SEG VFD KDC-W3041AY/GY X34-5652-73 X34-5682-75 V1102501 KDC-W241AY/.E 14-SEG VFD KDC-W312A/G X34-5652-72 X34-5682-74 V1101601 KDC-W241AY/.E 14-SEG VFD KDC-W312AY/GY X34-5652-73 X34-5682-75 V1102501 KDC-W241AY/.E 14-SEG VFD KDC-W312S

7、AY X34-5652-73 X34-5682-75 V1102501 KDC-W241AY/.KDC-138 KDC-MP208KDC-W241KDC-241Parts with the exploded numbers larger than 700 are not supplied.EXPLODED VIEW (UNIT)2X34-56xx-xxBLOCK DIAGRAM2161FRONT/P.ON FLBU DETPHONEACC DETRSTPHONEACC DET / BU DETPS1-1 / PS1-2 / PS1-3P.ON FLPS2-1 / PS2-295BU DET12

8、MUTER11-15123331ROM CORRECTION (NOT USED)1REAR/SW111P-ANTP-CONB.U.ACCPHONESP-OUTPS2 1 / PS2 2PS1 1 / PS1 2 / PS1 3R1031E-VOLIC2A8VSYSTEM u-COMBUPOWERQ701,702PRE-OUTPHONEACC-DETQ101SURGE-Q103BU-DETQ102Q2DC-CNA8VSERVO+BD5BU5SW5DETDC-CN etcPAN5VRESET ICIC8ILLUMI+BCNIC1IC6J1+BILLUMIILLUMI+BAM+BJ5MUTEQ70

9、5J2A1SERVO+BA8VBU51/2WRx5Q301BU5BU5DME1BU5CDSERVOICSW5AM+BA8VTUNERFRONT-ENDANT.DECODERRDSIC7SW5E2PROMSW5BUMECHACDPRE-OUTMUTEBU5SW5BU5SW5SW14VFL+BIC4POWERSUPPLYICFL+BJ3BU5IC10Q8,9Q7,10ELECTRIC UNIT (X34- )2C D3(X34-)(X34)A1LFGHJL: N80-3010-48: N83-3005-48: N83-3016-48: N86-2606-48: N89-3010-48JHx2LGF

10、(X34)7863X34-56xx-xxCOMPONENTS DESCRIPTION ELECTRIC UNIT (X34-56xx-xx)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 System -COM Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone.IC2 E-VOL Controls the source, volume and tone.IC4 Power Supply IC Output

11、s 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT.IC6 Power IC Amplifi es the front L/R and the rear L/R to 50W maximum.IC7 RDS IC RDS decoder.IC8 Reset IC Lo when detection voltage goes below 3.6V.Q2 Servo+B AVR When Q3s base goes Hi, Servo+B AVR outputs 7.5V.Q3 Control SW for Servo+B ON when the base goes Hi

12、.Q7 VFD+B SW ON when the base goes Hi.Q8 VFD+B AVR When Q9s base goes Hi, Servo+B AVR outputs 10.5V.Q9 Control SW for VFD+B ON when the base goes Hi.Q10 VFD+B SW ON when Q7s base goes Hi.Q11 14V SW ON when the base goes Hi.Q12 14V SW ON when the base goes Lo.Q13 Control SW for IC4 ON when the base g

13、oes Hi.Q14 Control SW for IC4 ON when the base goes Lo.Q101 ACC DET ON when the base goes Hi during ACC is applied.Q102 Serge DET When the base goes Hi, surge voltage is detected.Q103 BU DET ON when the base goes Hi during BU is applied.Q104,105 Mute Control ON when the base goes Hi.Q301 Panel 5V SW

14、 ON when the base goes Lo.Q701704 Pre-out Mute SW When a base of the 4 transistors goes Hi, pre-out is muted.Q705 Mute Driver for Pre-out ON when the base goes Lo.Q801 Electric Discharge Circuit for C805 (SVR) ON when the base goes Lo.4X34-56xx-xx SYSTEM -COM: IC1 on X34- (ELECTRIC UNIT)Pin No. Pin

15、Name I/O ApplicationTruth ValueTableProcessing Operation Description1 LX DATA M I/O Data to slave unit Pull-down (GND)2 LX CLK I/O LX-BUS clock 125k65kHz35 NC - Not used Output L fi xed6 REMO I Remote control signal input Detects pulse width7 NC - Not used Output L fi xed8 BYTE - Memory extended bus

16、 width setting Connects to VSS9 CNVSS - Connects to VSS10 XCIN - 32.768kHz11 XCOUT - 32.768kHz12 RESET - L: Reset13 XOUT - 10.0MHz14 VSS -15 XIN - 10.0MHz16 VCC1 -17 NMI I Connects to VCC18 CN DET I Panel communication detection H: Panel detached, L: Panel attached19,20 NC - Not used Output L fi xed

17、21 ROMCOR DET I E2PROM writing request H: Writing22,23 NC - Not used Output L fi xed24 PON FL O Key illumination power supply control ON: H, OFF: L25 NC - Not used Output L fi xed26 PON PANEL I/O Panel 5V controlON: L, Momentary power down/Panel detached: Hi-Z, 11 minutes after ACC OFF: Hi-Z27,28 NC

18、 - Not used Output L fi xed29 AUD SCL I/O E-VOL clock output30 AUD SDA I/O E-VOL data input/output31 VFD SYS DATA O VFD data output32 VFD PAN DATA I VFD data input33 VFD CLK O VFD clock output 125kHz34 VFD BLK O VFD data blanking outputH: Reset cancelled, L: Reset, Momentary power down/Panel detache

19、d: L, 11 minutes after ACC OFF: L35 CD SI O CD mechanism serial output36 CD SO I CD mechanism serial input37 BUCK O Serial clock output 1MHz38 CD LOS SW I CD loading detection39 PIO0 I Communication request from mechanism DSP H: Data request40 CD SRAMSTB O 1M-bit SRAM standby H: SRAM standby41 EPM I

20、 Flash EPM input Connects to VSS42 CD LOE LIM SW I CD detection (Chucking SW) H: Loading completed, L: No discMICROCOMPUTERS TERMINAL DESCRIPTION5X34-56xx-xxMICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Pin Name I/O ApplicationTruth ValueTableProcessing Operation Description43 PON CD O CD mechanism pow

21、er supply control H: Power ON44 CD LOEJ I/O CD motor control q Refer to the truth value table45 CD MOTOR I/O CD motor control q Refer to the truth value table46 VFD CE O VFD control request47 CD DRIVEMUTE O Motor driver mute output48 CD CCE O CD mechanism chip enable49 NC - Not used50 CD MRST O CD m

22、echanism -com reset H: Normal, L: Reset5153 NC - Not used Output L fi xed54 CD MUTE I CD mute request L: Mute request55 CD DISC12 SW I 12cm disc detection Pull-up (B.U.)56 ROTARY CCW I VOL key input Detects pulse width57 ROTARY CW I VOL key input Detects pulse width5861 NC - Not used Output L fi xed

23、62 VCC2 -63 NC - Not used Output L fi xed64 VSS -65 NC - Not used66 TUN IFC OUT I Front-end IFC-OUT input H: Station found, L: No station67 NC - Not used68 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON69 NC - Not used70 LX RST O Forced reset to slave unit H: Reset, L: Normal71 LX CON O Start-up request t

24、o slave unit H: Slave unit ON, L: Slave unit OFF72 LX MUTE I Mute request from slave unit H: Mute ON, L: Mute OFF 73 LX REQ M O Communication request to slave unit74 NC - Not used75 LX REQ S I Communication request from slave unit Pull-down (GND)76 PWIC SVR O SVR discharging circuitDuring 500ms afte

25、r power OFF and momentary power down: H, Since then: L77 PWIC STBY O Power IC standby control Power ON: H, Power OFF: L 78 PWIC MUTE O Power IC muteSTANDBY source/Momentary power down: L, TEL mute: L79 ACC DET I ACC power supply detection ACC found: L, No ACC: H80 BU DET I Detection of momentary pow

26、er downBU found: L, No BU/Momentary power down: H (Operates after less than 4ms after momentary power down is detected)8183 NC O Not used Output L fi xed84 TUN SMETER I S-meter input85 TYPE1 I Destination switching86 TYPE2 I Destination switching6X34-56xx-xxMICROCOMPUTERS TERMINAL DESCRIPTIONPin No.

27、 Pin Name I/O ApplicationTruth ValueTableProcessing Operation Description87 PWIC DC DET I DC offset detectionIf DC offset is found 20 times in 100ms with condition of over 1.0V, it will be judged as DC offset detected.88 LINE MUTE I Line mute detection TEL mute: Below 1V, NAVI mue: Over 2.5V89 NC -

28、Not used90 PS2 2 O Power supply IC control r Refer to the truth value table91 PS2 1 O Power supply IC control r Refer to the truth value table92 PS1 1 O Power supply IC control r Refer to the truth value table93 PS1 2 O Power supply IC control r Refer to the truth value table94 PS1 3 O Power supply

29、IC control r Refer to the truth value table95 NC - Not used Output L fi xed96 AVSS -97 REF CON O VREF control Connects to VREF98 VREF -99 AVCC -100 LX DATA S I Data from slave unit Pull-down (GND) Truth value tableq CD motor controlCD motor CD loading/ejectStop L LLoad H LEject H HBrake H Hi-zr Powe

30、r supply IC (IC4) controlSEL1 (Pin 10)PS1-2 PS1-3 PS2-1 ILLUMI P-CON P-ANTL L L OFF OFF OFFL L H ON OFF OFFH L H ON ON OFFH H H ON ON ONSEL2 (Pin 11)PS1-1 PS2-2 AUDIO/SW5 AML L OFF OFFH L ON OFFH H ON ON7X34-56xx-xx ExampleKey Description of display Description5Disc EJECT times displayEJCXXXXX Disc

31、EJECT times display. MAX 65535 (times)5While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJECT times.A symbol “” in the key column indicates that the key should be pressed and held for 1 second or longer. How to enter the test modeProcedure NotePress and hold

32、the 1 key and 3 key and reset.All lamps blink when it is detected that the sub-clock resonator is disconnected.When having started up in the test mode, change the LINE MUTE inhibition time from 10 seconds to 1 second.When operating in the test mode, even if a DC offset error occurs, detection inform

33、ation is not written in the E2PROM.Forced disc ejection is prohibited in the test mode. How to clear the test modeProcedure NoteReset, momentary power down, ACC OFF, Power OFF, Panel detached. Clearing the test mode Test mode default conditionDescription Default valuesSource STANDBYDisplay Display l

34、ights are all turned on.Volume -10dB (“30” is displayed.)Bass Boost OFFCRSC OFF regardless of having/not having the switching function.AUX ON (Only model equipped with AUX)System Q NATURAL (FLAT)Preout RearTEST MODE (7-SEG LCD)8X34-56xx-xx Special displays when all lights are on in STANDBY sourceKey

35、 Description of display DescriptionCommon All lights ON. All lights ON.1Destination terminal condition indicationTP11“TYPE” indicates system -com (IC1) destination, and shows real-time condition of the destination terminal.Development ID condition indication8:00701K Development ID Version (system -c

36、om: IC1)2 Serial No. display 00000000 Serial No. is displayed (8 digits)3Power ON time displayPon 0HXX0050 is displayed for “XX”. When less than 1 hour, displayed by displayed by increments of 10 minutes.PonXXXXX 0000110922 is displayed for “XXXXX”. MAX 10922 (hours)3When Power ON time is displayed,

37、 press and hold for 2 seconds or longer to clear Power ON time.4Disc operation time dis-playPLy 0HXX0050 is displayed for “XX”. When less than 1 hour, displayed by increments of 10 minutes.PLyXXXXX 0000110922 is displayed for “XXXXX”. MAX 10922 (hours)4While the disc operation time is displayed, pre

38、ss and hold for 2 seconds or longer to clear the disc operation time. (Cleared only for displayed media.)5Disc EJECT times displayEJCXXXXX Disc EJECT times display. MAX 65535 (times)5While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJECT times.6Panel open/clo

39、se times displayPC XXXXX PANEL open/close times display. MAX 65535 (times)6Press the key for more than 2 seconds while the PANEL open/close count is displayed and PANEL open/close count is cleared.FMROM correction version display0123 The number is the ROM correction version number.ER When E2PROM is

40、not installed. When not written in yet.oooo When data not matched. (due to the difference in versions) Audio data initialization InIT AUDIO setting value is re-set to the test mode default value.Forced Power OFF information displayPOFF No forced power OFFPOFF Pn LForced power OFF by communication er

41、ror between system -com and panel. While the forced power OFF data is displayed, press and hold for 2 seconds to clear the data.CD information display mode ON/OFFFor the display contents, refer to “CD information display mode” in the next section. While in CD information display mode, press and hold

42、 for 2 seconds or longer to clear all CD information.TEST MODE (7-SEG LCD)9X34-56xx-xx CD information display modeKey Description of display DescriptionFM(forwardrotation)AM(reverserotation)I2C com-munication statusICOK I2C communication OKICER I2C communication NG/CD mecha-nism error log display1:X

43、 X M E RMechanism error log 1 (Latest) XX: Error number. “ ” is displayed in case there is no error.2:X X M E RMechanism error log 2 (Latest) XX: Error number. “ ” is displayed in case there is no error.3:X X M E RMechanism error log 3 (Latest) XX: Error number. “ ” is displayed in case there is no

44、error./CD Load error information display1:X X L D E RLoad error switch 1 XX: Number of errors. “ ” is displayed in case there is no error.2:X X L D E RLoad error switch 2 XX: Number of errors. “ ” is displayed in case there is no error./CD Ejection error information display1:XXEJEREjection error swi

45、tch 1 XX: Number of errors. “ ” is displayed in case there is no error.2:XXEJEREjection error switch 2 XX: Number of errors. “ ” is displayed in case there is no error.3:XXEJEREjection error switch 3 XX: Number of errors. “ ” is displayed in case there is no error.4:XXEJEREjection error switch 4 XX:

46、 Number of errors. “ ” is displayed in case there is no error./CD time code error count data display (Missing counts)LOSE CD time code error count data (Missing counts) mode display.:X X C D D ANumber of CD-DA count errors XX: Number of errors. “ ” is displayed in case there is no error. /CD time co

47、de error count data display (count not updated)STAY CD time code error count data (count not updated) mode display.:X X C D D ANumber of CD-DA count errors XX: Number of errors. “ ” is displayed in case there is no error. Test mode specifi cations in TUNER sourceError is found in front-end (A1), etc

48、. if indications below is displayed while in tuner source.Status Display DescriptionFront-end (A1) E2PROM data error E2ER Front-end (A1) E2PROM is still the default (unspecifi ed) value.Front-end (A1) communication error ICER Communication with front-end (A1) is not possible.Destination mismatch TPE

49、RWhen destination is mismatch between front-end (A1) E2PROM and the product. TUNER preset operationKey Description of display Description4 Preset function 9 8.3 Change to 98.3MHz with the preset key 4.TEST MODE (7-SEG LCD)10X34-56xx-xx K3I forced switchingEvery time when 6 key is pressed in tuner FM source, switched