Kenwood-KDC-128-Service-Manual 电路图 维修手册.pdf

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1、 2004-12 PRINTED IN JAPAN B53-0233-00 (N) 1033 CD RECEIVER KDC-1028 KDC-128 KDC-128CR KDC-129/S KDC-229 SERVICE MANUAL * Depends on the model. Refer to the parts list. PANEL ASSY KDC-1028 (A64-3445-02) PANEL ASSY KDC-128 (A64-3446-02) SPARE TDF PANEL MAIN UNIT NAMETDF PARTS No.TDF NAME KDC-1028Y33-2

2、120-66TDF-51DB KDC-128Y33-2120-67TDF-51D KDC-128CRY33-2120-68TDF-51DCR KDC-129Y33-2130-65TDF-229 KDC-129SY33-2130-66TDF-129S PANEL ASSY KDC-128CR (A64-3467-02) PANEL ASSY KDC-129 (A64-3452-02) KDC-129S (A64-3453-02) PANEL ASSY KDC-229 (A64-3451-02) MOUNTING HARDWARE ASSY (J21-9716-03) LEVER (D10-458

3、9-04) x2 SCREW (4x16) (N84-4016-48) DC CORD (E30-6415-15) * REMOTE CONTROLLER ASSY (RC-507) (A70-2070-05) BATTERY (Not supplied) SCREW SET (N99-1757-05) * ESCUTCHEON (B07-xxxx-xx) PLASTIC CABINET ASSY (A02-2736-03) VOL AUD FF SET UP SCANRDMREP /AUTO AME /AUTO AME VOL AUD FF SET UP SCANRDMREP /AUTO A

4、ME VOL AUD FF SET UP SCANRDMREP VOL AUD FF SET UP SCANRDMREP /AUTO AME VOL AUD FF SET UP SCANRDMREP /AUTO AME KDC-229Y33-2130-65TDF-229 This product uses Lead Free solder. RadioFans.CN 收音机爱 好者资料库 2 KDC-1028/128/128CR KDC-129/129S/229 BLOCK DIAGRAM MECHA CD or MD CHANGER J2 E-VOL IC10 & AM AGC Q501 F

5、M AGC L506 J4 TUNER IC11 E2PROM SYSTEM u-COM IC1 IC7 RDS DECODER RST IC IC8 PRE MUTE Q351,352 IC4 POWER IC MUTE LOGIC IC6 SURGE DET BU DET ACC DET Q51 Q52 Q53 J1 PAN5V Q151 Q72,73 SERVO VFD REG IC15 POWER SUPPLY IC IC3 ED1 VFD with VFD DRIVER IC1 REMOTE IC3 VOL S11 KEY MATRIX DSI Q155 . . J6 SERVO A

6、8V BU5V AUDIO OUT AM+B ANT MPX OUT MPX IN 800mV 1200mV AUDIO OUT BU5V A8V BACK-UP SP OUT BACK-UP ACC TEL MUTE P-ANT P-CON PAN5 SERVO P-ANT SW5V AM+B A8V BU5V P-CON SW5V AM+B AUDIO+B VCC ILLUMI BU5V ILLUMI PAN5VBU5V PRE OUT KEY :CHANGER CD/MD RECEIVER FM (E Type) FM (J/K Type) AM (J/K Type) AM (E Typ

7、e) : : : : : 1800mV 1372mV 600mV 855mV 3600mV 3600mV ELECTRIC UNIT (X34-) SWITCH UNIT (X16-) 7 VREF L-ch R-ch A. GND A8V D. GND BU5V LOE/LIM SW 12EJE SW LOS SW S7.5V LO/EJ MOTOR S. GND VREF VREF 2 2 4 DRV MUTEMUTE DOUT DATA 4 2 CLK MSTOP MRST MUTE L MUTE R 2 2H L 12 5 2 4 3 20 21 13 15 1 14 9 7 6 8

8、18 12 11 10 22 19 EF A C B TR COIL FO COIL APC SERVO u-COM IC2 Q1 16.934MHz CLOCK X1 DRIVER MOTOR IC3 PROCESSOR LPF IC4 8V SW Q4 Q3 SW S3 S1 S2 D. GND RF AMP IC1 REF 5V REG D2 S. GND A. GND D. GND SLED LOADING 5V SW Q2 D. GND D. GND LOADING & SLED MOTOR SPINDLE MOTOR AMP Q5,6,D3 CURR. DM1 DM2 SW +5V

9、 A+5V PICK-UP (DPU1) CD PLAYER UNIT (X32-5750-00) BOARD (X34-) MOTHER MECHA ASSY (X92-) RadioFans.CN 收音机爱 好者资料库 3 KDC-1028/128/128CR KDC-129/129S/229 COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-3xxx-xx) Ref. No.Application / FunctionOperation / Condition IC1SYSTEM -COMSystem control. IC3POWER SUPPLYDC

10、5Vx2, 7.9Vx1, 8.1Vx1, 10.3V, P.CON, P-ANT output. IC4POWER ICAudio signal amplifier. IC6MUTE LOGICMute control. IC7RDS DECODERFor other models. IC8RESET“L” when detection voltage goes below 3.6V. IC10E-VOL & TUNERE-VOL, Tuner, Stereo decode. IC11E2PROMSaves and writes tuner adjustment data. IC15VFD

11、REGULATOR11.3V output voltage for LED and VFD. Q51SERGE DET“ON” when the base goes “H”. Q52BU DET“ON” when the base goes “H”. Q53ACC DET“ON” when the base goes “H”. Q71SERVO+B CONTROL SW“ON” when the base goes “H”. Q72,73SERVO+B AVROutput voltage level : 7.5V. Q74IC3 CONTROL SW“ON” when the base goe

12、s “H” (Output voltage : 10.3V). Q151PANEL 5V SW“ON” when the base goes “L”. Q155DSI ILLUMI SW“ON” when the base goes “L”. Q252IC4 STBY SW“ON” when the base goes “L”. Q330Q351, 352 MUTE DRIVER“ON” when the base goes “L”. Q351Lch PRE MUTE SWPre-output is muted when the base goes “H”. Q352Rch PRE MUTE

13、SWPre-output is muted when the base goes “H”. Q501AM RF AMPAdjusts for AM-RF gain. CD PLAYER UNIT (X32-5750-00) Ref. No.Application / FunctionOperation / Condition Generation of RF signal based on the signals from the APC circuit and pickup, and IC1 RF AMPLIFIER respondinggeneration of servo error (

14、focusing error and tracking error) signals. to CD-RWDetection of dropout, anti-shock, track crossing and off-tracking conditions, included gain control function during CD-RW. Focusing, tracking, sled and spindle servo processing. IC2 CD SIGNAL PROCESSORAutomatic adjustment (focusing, tracking, gain,

15、 offset and balance) operations. built-in -COMDigital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data interpolation processing) operations, and microcomputer function. IC34ch BTL DRIVER Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and ejec

16、t operation. IC4L.P.F. (LOW PASS FILTER)2nd low pass filter for audio signals. Q1APC (AUTOMATIC POWER CONTROL)LD power control. Q2DIGITAL +5V SW“ON” When P. ON signal goes “L”. Q3Q4 SW“ON” When P. ON signal goes “L” (SW+5V is ON). Q4ANALOG +8V SW“ON” When P. ON signal goes “L” (Q3 is ON). Q5, 6CURRE

17、NT AMPCurrent driver. RadioFans.CN 收音机爱 好者资料库 4 KDC-1028/128/128CR KDC-129/129S/229 SWITCH UNIT (X16-2940-xx) Ref. No.Application / FunctionOperation / Condition IC1VFD DRIVER IC3REMOTE SENSOR Q1GREEN LED SW“ON” when the base goes “H”. Q2RED LED SW“ON” when the base goes “H”. Q21PAN SW5V“ON” when th

18、e base goes “H”. DAUGHTER UNIT (X89-2690-10) Ref. No.Application / FunctionOperation / Condition Q221,2222-PREOUT MUTE“ON” when the base goes “H”. Q2252-PREOUT MUTE“ON” when the base goes “H”. COMPONENTS DESCRIPTION SYSTEM -COM : IC1 on X34- (ELECTRIC UNIT) Pin No. Active Pin NameI/OApplicationProce

19、ssing Operation (H/L) 1DC ERRIDC offset detection input 2LINE MUTEIPhone detectionNAVI MUTE : Over 2.5V, TEL MUTE : Below 1V 3ROTARY CWIRotary encoder input 4AVSS- 5TUN TYPE1IE-VOL setting switchRefer to “TUN TYPE” on the TRUTH TABLE 6TUN TYPE2IE-VOL setting switchRefer to “TUN TYPE” on the TRUTH TA

20、BLE 7AVREF1- 8VFD DATAFIData input from VFD driver 9VFD DATASOData output to VFD driver 10VFD CLKOClock output to VFD driver 11LVFD RSTOReset output to VFD driver Display OFF, Key reset, TDF panel OFF : L Display ON, Key scan : H 12VFD CEOChip enable output to VFD driver 13ROTARY CCWIRotary encoder

21、input 14LTDF DETITDF panel detectionTDF panel OFF : H, TDF panel ON : L 15PWIC BEEPOBeep output 1619NC- 20LTUN ADJIFor adjusting IC10 Adjustment=H, PS1-1,2=L, PS1-3=Hi-Z, PS2-1,2=Hi-Z, TUN DATA, CLK=Hi-Z 21TUN SDITuner search stop outputH : Station exists, L : Station does not exist 2224NC- 25AUD SD

22、AI/OVolume + tuner I2C data input and output MICROCOMPUTERS TERMINAL DESCRIPTION 5 KDC-1028/128/128CR KDC-129/129S/229 Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 26AUD SCLI/OVolume + tuner I2C clock input and output 27HPWIC STBYOPower IC standby outputPower IC ON : H, Power IC O

23、FF : L 28HVOL MUTEOE-VOL mute outputL : Mute OFF, Hi-Z : Mute ON 29LPWIC MUTEOPower IC mute outputPower OFF : L, Standby : L, Tel mute : L 30TUN FANC OUTOTuner block (inside the -com) checkOK : L, NG : H 31RESET2OMute for resetOutput L 32NC- 33VSS1- 34NC- 35LACC DETIACC detectionACC exists : L, ACC

24、does not exist : H 36LBU DETIMomentary power-down detection BU exists : L BU does not exist (Momentary power-down) : H 37NC- 38PS2-2OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 39PS2-1OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 40PS1-1OPow

25、er supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 41PS1-2OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 42PS1-3OPower supply control outputRefer to “POWER IC CONTROL” on the TRUTH TABLE 43,44NC- 45CD MUTEICD mute requestL : Mute request 46LCD MSTOPOCD

26、 mecha u-com stopH : mecha -com operates, L : mecha -com is stopped 47CD LOE LIM SWICD detection (chucking switch)H : Loading is finished, L : Disc does not exist 48CD LOEJI/OCD motor control Refer to “CD MECHA CONTROL OPERATION” on the TRUTH TABLE 49CD MOTOROCD motor control Refer to “CD MECHA CONT

27、ROL OPERATION” on the TRUTH TABLE 50NC- 51LCD MRSTOCD mecha -com resetH : Normal condition, L : Reset 52CD SCLI/OCD mecha I2C clock output 53CD DISC12 SWI12cm CD detection 54CD LOS SWICD loading detection 55CD SDAI/OCD mecha I2C data input and output 56OEM DISP CEI/OExternal display chip enableExter

28、nal display 57OEM DISP CLKI/OExternal display clockExternal display 58OEM DISP DATAI/OExternal display chip dataExternal display 59DSIODSI controlDSI ON : H, DSI OFF : L, TDF DET=H (DSI blinks) 60LRESETI 61NC- 62LPON FLOVFD power supply ON VFD ON : H, VFD OFF : L TDF DET H (DSI blinks) : L, TDF DET

29、L : H 63KEY REQICommunication request from VFD driverL : Key input 64NC- MICROCOMPUTERS TERMINAL DESCRIPTION 6 KDC-1028/128/128CR KDC-129/129S/229 Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 65REMOTEIRemote control input 66NC- 67VSS0- 68VDD1- 69X2- 70X1- 71TEST- 72XT2- 73XT1- 74V

30、DD0- 75AVDD- 7678TYPE 3TYPE 1IDestination switch 79NC- 80TUN SMETERITuner S-meter input MICROCOMPUTERS TERMINAL DESCRIPTION TRUTH TABLE TUN TYPE TYPE 1TYPE 2 General models commercially-designated as pure KENWOOD brand (Initial value) LL Initial value setting General models commercially-designated a

31、s pure KENWOOD brand (CRSC is changed) HL Multi-Path Band-Path Gain=12dB, Multi-Path Charge Current=0.4A, De-Emphasis=75S POWER SUPPLY IC (IC3) CONTROL SEL1 (Pin No. 11) PS1-2PS1-3PS2-1ILLUMIP-CONP-ANT LLLOFFOFFOFF LLHONOFFOFF HLHONONOFF HHHONONON SEL2 (Pin No. 12) PS1-1PS2-2AUDIOSW5AM LLOFFOFFOFF H

32、LONONOFF HHONONON CD MECHA CONTROL OPERATION CD LOEJCD MOTORCD MECHA OPERATION LHLoad HHEject Hi-ZLStop Hi-ZHBrake 7 KDC-1028/128/128CR KDC-129/129S/229 CD MECHANISM -COM : IC2 on X32- (CD PLAYER UNIT) Pin No. Active Pin NameI/OApplicationProcessing Operation (H/L) 1TVDOTraverse drive output (PWM ou

33、tput). 2SPLOSpindle motor drive output (PWM output). 3NC-No connection. 4PWMOMultipurpose PWM output. 5TBALOTracking balance adjustment output (PWM output). 6FBALOFocusing balance adjustment output (PWM output). 7NRFDETIRF detection signal input.L : Detection 8OFTIOff-tracking signal input.H : Detec

34、tion 9BDOIDrop-out signal input.H : Detection 10LDONOLaser-on signal output.H : Focus ON 11DSLBODSL balance output. 12DVDD1-Power supply for digital circuit. 13DVSS1-GND for digital circuit. 14AVSS2-GND for analog circuit.For DSL, PLL and A/D converter 15DSLFI/OLoup filter for DSL and bias output fo

35、r ARF. 16ARFIRF signal input. 17RFSWIDSL circuit time constant switch. 18PLLFI/OLoup filter for PLL. 19PLLF2I/OLoup filter character switch for PLL. 20IREFIReference current input. 21RFENVIRF envelope signal input. 22TRCRSITracking cross signal input. 23TEITracking error signal input. 24FEIFocusing

36、error signal input. 25AVDD2-Power supply for analog circuit.For DSL, PLL and A/D converter 26AVSS1-GND for analog circuit.For Lch/Rch audio output 27OUTRORch audio output. 28AVDD1-Power supply for analog circuit.For Lch/Rch audio output 29OUTLOLch audio output. 30DVSS3-GND for digital circuit. 31CSE

37、L- 32NC-No connection. 33ASEL- 34MSEL0- 35MSEL1- 3639NC-No connection. 40VREFP-Reference power supply input for A/D converter. 41HOT- MICROCOMPUTERS TERMINAL DESCRIPTION 8 KDC-1028/128/128CR KDC-129/129S/229 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No. Active Pin NameI/OApplicationProcessing Operatio

38、n (H/L) 428EJE SW- 4312EJE/SDET SW- 44LOE/LIM SWI Loading-end detection /H : Loading-end detection Pick-up inner circumference detection.L : Pick-up inner circumference detection 4549NC-No connection. 50DVDD2-Power supply for digital circuit. 51X1IMain clock input. 52X2OMain clock output. 53DVSS2-GN

39、D for digital circuit. 54XSUB1- 55NC-No connection. 56TEST1-Test terminal.Normal condition : “H” fixed 57TEST2-Test terminal.Normal condition : “H” fixed 58,59NC-No connection. 60DRV MUTEODriver mute control.L : Mute ON, H : Mute OFF 61LMUTE LOAudio Lch mute output. 62LMUTE ROAudio Rch mute output.

40、63LRSTILSI reset input. 64OCD CLK- 65LMSTOPIStandby detection. 66DATAI/OI2C bus data line (Communication line to system -com).During serial writer is connected. 67SBIOIData input.During serial writer is connected. 68LCLKI/OI2C bus clock line (Communication line to system -com).During serial writer i

41、s connected. 69TXODigital audio interface signal output. 70NC-No connection. 71XSEL- 72MCNTILoading control / Eject control.L : OFF (Host control), H : Mecha -com control 73P. ONOAudio & Servo power supply control.L : Power supply ON. H : Power supply OFF 74,75NC-No connection. 76CD-RWOCD-RW control

42、.H : CD-RW, L : Normal disc 77NC-No connection. 78DVDD3-Power supply for digital circuit. 79FODOFocusing drive output (PWM output). 80TRDOTracking drive output (PWM output). 9 KDC-1028/128/128CR KDC-129/129S/229 TEST MODE How to enter the test mode While simultaneously press PRESET “1” key and PRESE

43、T “3” key, press “RESET” button. How to release the test mode Press “RESET” button. (The release cannot be achieved in the conditions of POWER OFF and ACC OFF.) Initial conditions of the test mode The source is “STANDBY”. The displays all lit up. The volume is at 10dB (The display shows “30”.) LOUD

44、is “OFF”. CRSC is “OFF”. SYSTEM Q is “NATURAL”. BEEP is sounded at all time with the key depressed for less than 1 second. Special displays when all indicator lights are lighted When “PRESET” keys are pressed while all indicators for the STANDBY sources are lighted, the following displays will ap- p

45、ear. PRESET Version display (4 digits : month, date) “1” key(4digits : hour, minute) (Display) : XXXX xxxx PRESET Serial number display (4 digits) (4 digits) “2” key(Display) : XXXX xxxx PRESET When pressed for less than 1 second : POWER ON “3” keytime display (STANDBY source time is not counted.) (

46、Display) : _ _ _ X xxxxMAX 60,000 (hours) * The display is cleared by pressing the key for more than 2 seconds. PRESET When pressed for less than 1 second : CD operation “4” keytime display (Display) : _ _ _ X xxxxMAX 60,000 (hours) * The display is cleared by pressing the key for more than 2 second

47、s. PRESET When pressed for less than 1 second : CD EJECT “5” keynumber display (Display) : _ _ _ X xxxxMAX 60,000 (times) * The display is cleared by pressing the key for more than 2 seconds. PRESET When pressed for less than 1 second : Panel open/ “6” keyclose number display (Display) : _ _ _ X xxx

48、xMAX 600,000 (times) * The display is cleared by pressing the key for more than 2 seconds. “FM” ROM CORRECTION version display key(Display) Effective : Rxxx (x : number) Not effective (When not able to read) : R Not effective (When version is different) : R “AM” IC10 adjustment status (Refer to “ADJ

49、USTMENT” on keythe following page.) (Display) Adjustment complete : E2OK Adjustment not completed : E2ER Communication error : ICER * When other than “E2P _ OK _ _” , Pin No. 30 will become “H”. “” Mechanism error detection status key Communication error Error No. 1 Error No. 2 Error No. 3 Communication error (Error No. 1 is the most recent error.) (Display) Communication OK : ICOK Communication error : ICER Not detected : En (n : 13) Detected : En ( : error code) * The display is cleared by pressing the key for more than 2 seconds. 1