Kenwood-KDC-9020-R-Service-Manual(2) 电路图 维修手册.pdf

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1、PREOUT TEXT COMPACT DIGITAL AUDIO D.REP RDM P.M/M.RDM READY SIRIUS AUTO SCN NF 50Wx4 SRC DAB 1/52/63/74/8 MENUAUDOFF ANGSCRL KDC-X759 REP TEXT COMPACT DIGITAL AUDIO D.REP RDM P.M/M. RDM READY SIRIUS AUTO SCN NF 50Wx4 SRC DAB 1/52/63/74/8 MENUAUDOFF ANGSCRL KDC-MP919 PREOUT REPF.SEL TEXT COMPACT DIGI

2、TAL AUDIO PTY/D.REP RDM P.M/M. RDM TI SCN NF 50Wx4 SRC DAB 1/52/63/74/8 MENUAUDOFF ANGSCRL KDC-XXXXXX PREOUTREPF.SEL GSM KDC-9020R/MP919 /PSW9521/X759 CD RECEIVER SERVICE MANUAL C 2002-2 PRINTED IN KOREA B51-7900-00(K) 3409 The CD mechanism information is not in this service manual. Please, refer to

3、 service manual. KDC-9020R/PSW9521 : X92-4470-0 x(B51-7899-00) KDC-MP919: X92-4460-00(B51-7891-00) KDC-X759: X92-4450-00(B51-7889-00) Panel assy (A64-2568-02) KDC-X759 Panel assy KDC-9020R: (A64-2570-02) KDC-PSW9521: (A64-2586-02) Panel assy (A64-2569-02) KDC-MP919 KDC-9020R KDC-PSW9521 Escutcheon a

4、ssy (B07-3007-03) Escutcheon assy (B07-3007-03) Escutcheon assy (B07-3007-03) 1 DC cord (E30-) DC cord (E30-) Plastic cabinet assy (A02-1497-13) Remote con.assy (A70-) Antenna adaptor (T90-0523-05) Escutcheon (B07-3010-02) Mounting hardware assy (J21-9716-03) Lever (D10-4562-04) Bracket (L) (J19-505

5、1-03) Torsion coil spring (G01-2924-04) Screw set (N99-1722-05) Screw set (N99-1704-05) Remote con.assy (A70-0886-15) Bracket (R) (J19-5052-03) Depends on model. Refer to the parts list. RadioFans.CN 收音机爱 好者资料库 ILL TEL MUTE ACC ANT CON P CON BACK UP EXT AMP CONT PLL+B BUFFER DECODER RDS E-VOL MPX N.

6、C. IF+B SYSTEM u-COM RESET SW A8VSW14V EXT AMP CONT DIMMER ACC DET TEL MUTE P CON B.U DET ANT CON SW5VB.U. 5V PAN5V MASK MECHA POWER IC THERMO PROTECT IC4 MUTE PRE AMP 4.5V IC11-13 SP OUT PRE OUT RESET AM+B FM+B NOISE BUFFER SPEANA AGC OP AMP SYSTEM ES+ MUTE DRIVER IC9 4.5V SERVO AVR DC/DC 4.5V PRE

7、IC15 DRIVER MASK REMO O-CE O-CLK O-DATA STEERING REMOTE EXTERNAL DISPLAY DC/DC REG CD4.7V DC/DC IC7 MATRIX KEY REMO FL3.3V SW VFD (GRADATED) SPEANA BPF G/R SW PANEL u-COM FL+B SW VFD (GRADATED) MATRIX KEY RESET SW FL3.3V SW REMO ROM FL+B SW PANEL u-COM SPEANA BPF G/R SW IC10 IC14 IC2 CONTROL 1.8V PR

8、E OUT PRE OUT OUTPUT VOLTAGE IC1 IC5 IC8 251mV (E) TYPE 470mV (K) TYPE FM: AM: 230mV F/E CD CH (X16-160)FL (2 COLOR) TYPE (X16-161) FL (GRADATED) TYPE(X16-158) (X16-159) AUDIO S-METER IFC OUT PLL DATA PLL CLK SW5V FM AM CD CHANGER S METER QUAL SDA SCK S MUTE A 8V MASK SW1 RCLK QUAL RDATA NOISE S MET

9、ER AFS IFC OUT PLL DATA PLL CLK SW1 M RST LO/EJ MO SW MUTE R MUTE L M STOP SW3 DATA C CH RST CH MUTE SW2 DATA H CH CON CH CLK REQ H REQ C MASK DET RESET AM+B FM+B SCK SDA PRE MUTE MUTE BEEP P MUTE ACC DET PHONE DIMMER EXT AMP CONT P CON PAN5V P ON ANT CONT B.U. DET SW5V SW5V CH MUTE CH RST DATA H DA

10、TA C CH CON REQ C CH CLK REQ H BACK UP 1200mV CD4.7V SERVO +B A8V PAN5V B.U. 5VSW5V MUTE AC GND BACK UP SW5V B.U.5V +B FM 4500mVCD AM750mV 2250mV 1069mV 1715mV (K) TYPE (E) TYPE 4500mV B.U. 5V SW5V SCK SDA B.U. 5V -B SERVO+B +B -B MASK SW2 MASK SW3 O-CE REMO O-DATA O-CLK MASK + MASK - CD-MECHA+B ILL

11、 ON CD4.7V PANEL 5V PANEL 5V VDD1VDD2 FAC PANEL 5V PANEL 5V VDD1VDD2 FAC AFS MS CLK MS DATA M STOP M RST MUTE L MUTE R MO SW LO/EJ SW1 SW2 SW3 A8V B.U. 5V (MP3. WMA) CH 3600mV 1372mV 855mV (E) TYPE 4.5V PRE1.8V PRE MODE 4500mV4500mV3600mV 1200mV KDC-9020R/MP919/PSW9521/X759 2 BLOCK DIAGRAM RadioFans

12、.CN 收音机爱 好者资料库 KDC-9020R/MP919/PSW9521/X759 3 COMPONENT DESCRIPTION Element Purpose H. Without RDS and L RBDS: L. 12BEEPOBeep output terminal.LL Since there is no 13REMOI Wired remote input wired remote control, terminal. connected to GND. 14N.COOutput Open. Not used.L 15N.COOutput Open. Not used.L

13、16IC2-SDAI/O IC2, IC5 and CD mechanism DATA line. Hi-ZHi-Z 17IC2-SCLI/O IC2, IC5 and CD mechanism CLOCK line. Hi-ZHi-Z L when M MUTE R is L (during CD playback). H (other sources 18PRE-MUTE ROPREOUT(Rch)MUTEL during momentary than CD) H power down. H only in 2-zone operation. L when M MUTE R is L (d

14、uring CD playback). 19PRE-MUTE LOPREOUT(Lch)MUTEL during momentary H (other sources H power down. H only in than CD) 2-zone operation. 20N.COOutput Open. Not used.L 21TEST-Test pin.Normal: L. During 22N.C(SVR)O power OFF: H in 5 sec.H (L in 5 sec. Power OFF: Hafter Power OFF). 23P-MUTEOPower IC MUTE

15、 terminal. Power OFF: L All OFF: L (H in 5 sec. L. Tel muting: L H after P-ON OFF). POWER IC ON: H 24P-STBYOPower IC STBY terminal.POWER IC OFF : LLL ALL OFF: H ON: Open. OFF: L. 25MUTEOMuting terminal.Time constant: 0.48 msL Open (H in 5 sec. (with both ON/OFF) after P-ON OFF). SYSTEM MICROCOMPUTER

16、 uPD703033AGF-*-3BA (X25) KDC-9020R/MP919/PSW9521/X759 8 MICROCOMPUTERS TERMINAL DESCRIPTION PinNameI/OPurpose Processing Operation Processing During Processing During Non-Operation STBY 26SW5VI/O5V power supply terminal. ON: L OFF: Hi-ZHi-Z L (Hi-Z in 10 sec. after Power OFF). Momentary power down

17、B-U present: L. 27BU-DETI detection terminal. B-U absent (momentary power down): H. 28ACC-DETIAcc detection terminal. Acc present: L. Acc absent: H. 29N.COOutput Open. Not used.L 30DIMMERISmall detection terminal.ON: L OFF: H L for 40 ms: Bass Boost Off. 31 EXT-AMP- O External amp controlL for 70 ms

18、: Bass Boost HH CONTterminal (200 ms).Low. L for 100 ms: Bass Boost High. POWER ON: H 32P-CONI/OPower control terminal.POWER OFF: Hi-ZHi-ZHi-Z ALL OFF: Hi-Z TUNER, TI ON: H Other sources in last FM with 33ANT-CONOAntenna control terminal.RDS: H. Other sourcesLL in last FM with RBDS, TI ON: H. 34RESE

19、TIReset input terminal.Normal: H. Reset: L. 35XT1I Sub-clock connectionClock count. Working terminal.while power is OFF. 36XT2- Sub-clock connection terminal. Output terminal for 37REGC-capacitor of Reg. in uCOM. During power ON: Oscillating. During power 38X2- Main clock connection OFF and momentar

20、y terminal. power down: Oscillation stopped. 39X1I Main clock connection terminal. 40Vss-GND terminal. 41Vdd- Positive power supply terminal. 42CLKOUTO Internal system clock terminal. With CD source: L. Other sources than CD: Hi-Z. Models without 43CD MECHA+BI/OCD 4.7 V output terminal.MP3 or WMA: O

21、utput L. Hi-ZHi-Z ON: 50 ms faster than M-STOP. OFF: 50 ms slower. 44P-ONI/OSW 14 V control terminal. POWER ON: HH (Hi-Z in 10 sec. POWER OFF: Hi-Z Hi-Z after power OFF). 45O-DATAI/O External display DATAModels without external terminal.display: Output L. LL SYSTEM MICROCOMPUTER uPD703033AGF-*-3BA (

22、X25) KDC-9020R/MP919/PSW9521/X759 9 MICROCOMPUTERS TERMINAL DESCRIPTION PinNameI/OPurpose Processing Operation Processing During Processing During Non-Operation STBY 46O-CLKI/O External display CLKModels without external terminal.display: Output L. LL 47O-CEI/O External display CEModels without exte

23、rnal terminal.display: Output L. LL 48ILL-ONI/O FL and ILLUM output terminal. ON: H OFF: Hi-ZHi-ZHi-Z 49TYPE0I Destination type switching port. 50TYPE1I Destination type switching port. 51TYPE2I Destination type switching port. 52IC2TYPE0I IC2 destination type terminal. Default: L. 53IC2TYPE1I IC2 d

24、estination type terminal. Default: L. 54N.COOutput Open. Not used. 55N.COOutput Open. Not used. 56M-MUTE RI Muting request from CD mechanism. (R CH) ON: L 57M-MUTE LI Muting request from CD mechanism. (L CH) ON: L 58BVdd- Positive power supply terminal. 59BVss-GND terminal. Normal: H. Reset: L. 60M-

25、RSTO Reset outputAccording to the to CD mechanism.mechanism control HH specification. 61M-STOPO Stop request to CD mechanism. STOP: L CD: HLL 62N.COOutput Open. Not used.L 63CD-SW3I CD Down SW detection terminal. Chucking: H.L 64LO/EJI/O CD mechanism Loading/Stop, braking: Hi-Z. Ejection switching.L

26、oading: L. Ejection: H. Hi-zHi-Z 65MOSWO CD mechanism motorLoading, ejection, power supply SW.braking: H. LL 66N.COOutput Open. Not used.L Reset output Normal: H. Reset Mo. Dy. Hr. Mn.) (Display) SYS XXXXXXXX system microprocessor PAN XXXXXXXX panel microprocessor Serial No. display (8 digits) (Disp

27、lay) SNo XXXXXXXX 2/6key Press once: Power on time display (Does not count during All-Off) Press long: Clears the time display during power-on. (Display) PonTim XXXXX MAX 65535(time) Press once: CD operating time display. Press long: Clears CD operating time. (Display) CDTime XXXXX MAX 65535(time) 3

28、/7keyPress once: CD eject count display. Press long: Clears CD eject count display. (Display) EjeTim XXXXX MAX 65535(count) 4/8keyPress once: PANEL open/shut count display. Press long: Clears PANEL open/shut count display. (Display) PnCnt XXXXX MAX 655350(count) 1. How to enter test mode While holdi

29、ng the 1/5 key and the 3/7 key, reset the unit. 2. How to exit from test mode. While holding down the 4/8 key, reset the unit. Note: Does not exit from test mode ACC OFF, Power OFF or momentary power down 3. Test mode reset status Sources are all OFF All display segment lit up Volume at -10dB (shows

30、 30 on display) LOUD is OFF. CRSC is OFF regardless of whether switching function is provided. SYSTEM Q is in FLAT BEEP sounds at momentarily pressing at any time. 4. Special displays in Tuner When the following displays appear in tuner mode it shows a problem with the front end. TNE2P NG : F/E is n

31、ot aligned and EEPROM is in reset (no settings) such as when shipped. TNCON NG : Cannot communicate with F/E (front end). 5. K3I switching Each time the Preset 6 key is pressed in Tuner mode, switches one at a time through the following sequence: AUTO Forced Wide Forced Middle Forced Narrow AUTO. Wh

32、en reset, displays the following in AUTO. AUTO: FMA Forced Wide: FMW Forced Middle: FMM Forced Narrow: FMN 6. CD receiver test mode specifications No automatic ejection during reset-start. Does not make a CD check in reset with a CD loaded. Using the Track up key jumps to the following tracks. No. 9

33、 No. 15 No. 10 No. 11 No. 12 No. 13 No. 14 and back to No. 9 Using the Track down key moves 1 track downwards from the track being played. When the total number of MP3 or WMA disc tracks is 9 or less, playback starts from the first track. With the model equipped with the MP3 or MP3/WMP mechanism, th

34、e mechanism model name and version number are displayed at the bottom line. 7. Audio items Momentarily pressing the Q key calls up audio adjust- ment mode. Pressing the key on the remote control calls up audio alignment mode. An initial item is set to Feder. Continuous forward is disabled on the rem

35、ote control. Bass/Middle/Treble/NF are settable in 3 steps of MIN / Center / MAX with the Track up/down keys. Test Mode Balance is settable in 3 steps of Left MAX / Center / Right MAX with the Track up/down keys. Fader is settable in 3 steps of Rear MAX / Center / Front MAX with the Track up/down ke

36、ys. HPF is settable in 2 steps of THRU/220Hz with the Track up/down keys. LPF is settable in 2 steps of THRU/120Hz with the Track up/down keys. Bass f / Bass Q / Bass EXT / Middle f / Middle Q / Treble f do not appear in the audio alignment. 8. Menu items The DNPP/SBF keys on the remote control call

37、s up Menu mode. Continuous forward is disabled on the remote control. 9. Backup current measurement The MUTE terminal turns off 2 seconds (not 15 seconds) after being reset in ACC off (backup on). (The panel and CD mechanisms are disabled during this time.) 10. Special displays during All-Off with a

38、ll lamps on The following displays appear when the preset keys are pressed with all display segment lit up. 11. Channel space switching (K/M type) While holding the 1/5 key and the 4/8 key, reset the unit. 12. Others Automatic panel close is disabled when CD is inserted. Panel operation is disabled

39、at Power-ON or Power- OFF. Panel open and closes with press long the Q key. No displays such as CODE OFF during Power-ON. Pressing the TI (AUTO) key during changer operation turns on 2zone. Cancel by pressing the TI (AUTO) key again. The P/S dot is lit during 2zone. Pressing the 4/8 key for 1 second

40、 or more during All OFF, calls up the Mask Key (security) write mode. TEST MODE KDC-9020R/MP919/PSW9521/X759 12 1. Forced power-ON mode (all models) Even when writing is permitted by the security function (mask key), Power-on can be set for a 30 minute period each time the reset key is pressed while

41、 holding down the Q key and 4/8 keys. After 30 minutes elapses, can only be restored by using reset. 2. How to register the security code for EEPROM (F/E) replacement (coded security models) (1) Enter the test mode. (See 1. How to enter the test mode) (2) Press the 4/8 key to enter the MENU MODE. (3

42、) While Security is displayed, press and hold the Track up or down key for a second to enter the secu- rity registration mode. (4) Enter the code using the FM/AM/Track up/Track down keys. FM key: Increments the number. AM key: Decrements the number. Track up key: Moves the cursor to the right. Track

43、 down key: Moves the cursor to the left. (5) Hold down the Track up key for at least 3 seconds and the message, RE-ENTER appears, so once again enter the code according to Step 4 above. (6) Hold down the Track up key for at least 3 seconds, and the message, APPROVED appears. (7) Cancel test mode. (S

44、ee, 2. How to cancel the test mode.) Note: All clear cannot be performed on the security code for this model. 3. Simple way to clear the security code (K type only) (1) During code request mode, press the Track Up key for at least 3 seconds while holding down the AUTO key. (- will disappear) (2) Ent

45、er, KCAR with the remote controller as described below. (Same as on 01 model.) Press the remote controller 5 key twice, and press the Track Up key. (Enters a K) Press the remote controller 2 key three times, and press the Track Up key. (Enters a C) Press the remote controller 2 key once, and press t

46、he Track Up key. (Enters an A) Press the remote controller 7 key twice, and press the Track Up key. (Enters an R) (3) Security function is canceled and unit sets to All-Off mode. (4) Code request mode appears if a mistake was made in entering the numbers. 4. Method of writing the Mask key while the

47、EEPROM is in the initial status (1) Enter the test mode. (See 1. How to enter the test mode) (2) Press the 4/8 key to enter the Mask key registration mode. TRANSMIT1 should be displayed now. The display at this time should show in place of . Security items (3) Point the Mask key remote toward the li

48、ght sensor, and press and hold its key for more than 0.5 second. (4) When TRANSMIT2 is displayed, press and hold the key on the Mask key remote for more than 0.5 sec- ond again. The first and second counter codes are not compared at this time. (5) When APPROVED is displayed, the write operation is c

49、omplete. Now the demonstration mode is initiated and the test mode is terminated. (Note) In the same way as previous models, if 30 minutes have elapsed with no code written, an error occurs and the power is turned OFF. 5. Method of initializing the Mask key (How to reset the unit from the Mask key approved condi- tion to the factory condition) (1) Enter the test mode. (See 1. How to enter the test mode) (2) TRANSMIT1 is displayed and the Mask key entry request mode is initiated. The disp