Kenwood-KRFX-7775-D-Service-Manual电路原理图.pdf

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1、PHONESTHXDOLBY DIGITALDTSMPEGD.R.I.V.E.HDCD INPUT SELECTORVOLUME CONTROLDOWNUPAV - AUXS VIDEOVIDEOL - AUDIO - RCLIPINDICATORON/STANDBYREMOTE POWERCD 2 / TAPE 2MONITORSURROUNDBACK96kfsSTANDBYDISCRETE 6.1MATRIX 6.1NEO : 6PRO LOGICDTS-ESOPTICALVIDEO4VIDEO3VIDEO2CD-R MD/TAPE1 CD1 DVDEXT.CONTROLRS-232CDI

2、GITAL INCOAXIALDIGITAL OUTVIDEO3 INCOMPONENT VIDEODVDINMONITOROUTMONITOROUT PLAYINPLAYINPLAYINPLAYINRECOUT RECOUTPLAYINS VIDEOVIDEOPRE OUTZONE B PRE OUTRLAUDIORLFRONTRLSURROUNDRLRLSURROUND BACKSUB WOOFERCENTERVIDEORLBAAUDIOVIDEO1VIDEO2VIDEO3VIDEO4DVDFRONTDVD/6CH.INPUTSURROUNDCENTERSUBWOOFERPHONOCD1R

3、ECOUTPLAYIN MD/TAPE1RECOUTPLAYINCD-RRECOUTPLAYIN CD2/TAPE2MONITORCENTERSPEAKER(616)SURROUNDSPEAKERS(616)FRONT SPEAKERS(616)ANTENNAGNDAMFM 75SYSTEMCONTROLSL16 TEXTREMOTE IR OUTLCDIR OUT LCDREMOTEIR RECEIVERINIR RECEIVERINIR REPEATER OUT/DVD CONTROLRF REMOTEANTENNACRLRLABDC12V 20mADC12V 20mAPR/CRPB/CB

4、YPR/CRPB/CBYPR/CRPB/CBYAC 120V 60HzSWITCHED TOTAL90W 0.75A MAX.Front glass (B10-3639-02)Knob *(K29-)Panel *(A60-)Phone jack(E11-0190-05)Knob *(K29-)Indicator (B12-0392-14)Knob *(K29-)Cylindrical receptacle(E56-0026-05)Pin jack(E63-1121-05)Pin jack(E63-1128-05)Retangular receptacle(E58-0033-05)Pin ja

5、ck *(E63-)Oscillating module(W02-2717-05)Indicator (B12-0391-14)Panel *(A29-)Miniature phone jack *(E11-)Miniature phone jack *(E11-)Lock terminal board *(E70-)AC power cord bushing *(J42-)Pin jack *(E63-)x3Pin jack *(E63-)Pin jack *(E63-)x2AC outlet *(E03-)Screw terminal board(E70-0131-05)Pin jack

6、*(E63-)Screw terminal board(E70-0133-15)Miniature phone jack(E11-0347-05)Pin jack *(E63-)x2Pin jack *(E63-)Pin jack *(E63-)Cylindrical receptacle *(E56-)Pin jack *(E63-)Miniature phone jack(E11-0907-05)Pin jack *(E63-)Pin jack *(E63-)Pin jack *(E63-)70%AUDIO VIDEO SURROUND RECEIVER2001-5/B51-5723-00

7、 (K/K) 3164*Refer to parts list on page 55. KRF-X7775D/X7775D-SSERVICE MANUALVR-5080/5090Illust is KRF-5090.Pin jack *(E63-)AC power cord *(E30-)Cylindrical receptacle *(E56-)Optic receiving module(W02-2716-05)Cylindrical receptacle *(E56-)Miniature phone jack *(E11-)KRF-X7775D/X7775D-S/VR-5080/5090

8、2CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES.2DISASSEMBLY FOR REPAIR.3BLOCK DIAGRAM.5ADJUSTMENT.6WIRING DIAGRAM.8PC BOARD.9SCHEMATIC DIAGRAM.22EXPLODED VIEW.53PARTS LIST.55SPECIFICATIONS.69ContentsRF REMOTE CONTROL UNITRC-R09102WAY LCD REMOTE CONTROL UNIT+-+-12 345 678 910 11 12+10 0 +100/Batteries

9、AM Loop Antenna (T90-0852-05)FM Antenna(T90-0855-05)Battery cover(A09-1166-08)Remote control unit(A70-1453-05): RC-R0913.KP1K1P2(A70-1454-05): RC-R0914.M1X1Y1V(A70-1455-05): RC-0915.E1E2AC plug adaptor* Refer to parts list.*.(1)Use to adapt the plug on the power cord to the shape of the wall outlet.

10、(Accessory only for regionswhere use is necessary.)(T90-0850-15)U.S.A. onlyAntenna assyAccessoriesManufactured under license from Dolby Laboratories. Dolby, Pro Logic,AC-3, and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpub-lished Works. 1992-1997 Dolby Laboratories. Al

11、l rights reserved.Manufactured under license from Digital Theater Sys-tems, Inc. US Pat. No. 5,451,942 and other world-wide patents issues and pending. DTSand DTS Digital Surroundare trademarks of Digital Theater Systems, Inc. 1996 Digital Theater Systems, Inc. All rights reserved., HDCD, High Defin

12、ition Compatible Digital and Pacific Microsonics are either registered trade-marks or trademarks of Pacific Microsonics, Inc. in the United States and/or other countries. HDCD sys-tem manufactured under license from Pacific Micro-sonics, Inc. This product is covered by one or more of the following:

13、IN the USA: 5,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274, 5,854,600, 5,864,311, 5,872,531, and in Australia: 669114. Other patents pending.TMKRF-X7775D/X7775D-S/VR-5080/50903DISASSEMBLY FOR REPAIR2x834561x61CN10X07C/5X25C/11X25B/11CN102CN16CN103X13A/6CN10110x2101110x210x2789X25B/11X11A/2X05

14、CN1FRAME(A)FRAME(C)FRAME(B)10x212x212How to Remove the Front Panel 1.How to Remove the Front Panel 1. Remove the screws (1X3) on top of the panel.2. Remove the screws (2X9) located at the the bot-tom of the panel.3. Disconnect the cable (3) and connectors (4,5)on the X13 A/6.4. Disconnect the connec

15、tor (6) on the X07 A/5.5. Cut the tie band (7X7) as shown in the figure.6. Remove the screw (8X1) on the X25 F/11.7. Disconnect the connector (9) on the X25G/11.(Except K/P type)8. Remove the hooks (0X2) on the sub panel.9. Remove the front panel in the direction of arrow.Disassembling the Rear Pane

16、l andHow to Replace the Power Transistor1. Disconnect the CN10 on the X07 C/5.2. Remove all of screws (1X61) and digital caps(2X8) on the rear panel.(The number of screws and caps are vary accord-ing to the models).3. Disconnect the cable CN16 (3) on the X13 A/6.4. Disconnect the flexible cables CN1

17、01(4) on theX25 C/11, CN102 (5) and * CN103 (6)on the X25B/11.* (K/P type only).5. Remove the rear panel in the direction of arrow.6. Remove the screw (7), then remove the X25 B/11.7. To remove the tuner unit, disconnect the CN1 (8)and remove a screw (9).8. Remove the screws (0X9) on the frames (A/B

18、/C),push rivet (-) and PC support (=x2)on the X11A/2.HOOKX13(A/6)CN3CN2CN1AC CONNECTOR(EXCEPTK/P)X25(F/11)X25(G/11)X07(A/5)CN8453x31x52x77x4286910x2KRF-X7775D/X7775D-S/VR-5080/50904DISASSEMBLY FOR REPAIR9. To remove the frame A rearward, cut the tie bands(X4) on the frames.10. Remove a screw (!), th

19、en remove a thermostat.11.Remove the screws (X8), then remove a frame (D),and X07 B/5. 12. To remove a power amplifier unit (X07 A/5), removethe screws (#x4), and a PC support ($x2).13. Set up the X07 A/5 in the direction of arrow as shownin the figure.14. Replace the defective transistor.15x215x215

20、x3 15X07B/5FRAME(A)FRAME(D)X07A/5X07A/51616161617x21413x4KRF-X7775D/X7775D-S/VR-5080/50905BLOCK DIAGRAMREC OUT SWTAPE2REC BUFFEROUTPUT MUTEONDIG REC200mV36mV200mV200mVINPUT SEL.ZONE ABUFFERDIG REC OUT(0dB or +6dB)OPTICAL OUTCOAXIAL OUTCOAXIALOPTICALDIGITAL INPUT SEL.OPTICALCOAXIALCOAXIALOPTICALOPTIC

21、ALCOAXIALCOAXIALOPTICALOPTICALCOAXIALCOAXIALOPTICALVIDEO2VIDEO3DVD(6ch IN)VIDEO4CD-RMD/TAPE1CDAV AUX IN200mVINPUT SEL.ZONE BCD2TAPE2 MON12.5mV(38dB)BUFFERLINE (0.-3.-6dB)OFF -3dBON -6dBBUFFERINPUT ATTBUFFER(-6dB)200mVMAX:1.0VrmsFL.FRSUBCENTERSL.SRSBL.SBR(0dB)50kHz LPF1kHz LPF(0dB)(0dB)(0dB)(0dB)50kH

22、z LPF50kHz LPF50kHz LPFSW ONDIGSW OFFDIGANACONFIG-2FILTERONANA TONE OFFTONE(0dB)TONEOFFATT OFFZONE BLINE BUFFERBUFFERBUFFERBUFFER(+15dB)SUB6ch INCENTER6ch IN6ch INSL SR6ch INPUT SEL.SP BCENTERSL.SRSBL,SBRSUB(4.7dB or 14.7dB)(14.5dB)(5.2dB or 15.2dB)(5.2dB or 15.2dB)(5.2dB or 15.2dB)(5.2dB or 15.2dB)

23、A-10dB GAIN CONT.ZONE BZONE BB SOURCEAMPLIFIER(29dB)AMPLIFIERAMPLIFIER(29dB)(29dB)F/C/SW-MUTESPB/S-MUTEPRE S-MUTEPRE ZB-MUTESUB-MUTE RELAYCSRELAYARELAYBOUTPUT MUTEK5K1K3K4K2YPB/CBPR/CRPB/CBPR/CRY6dB AMP6dB AMP75ohm DRIV.B SOURCEPALNTSC75ohm DRIV6dB 75ohm DRIV6dB AMP75ohm DRIVNONECRAMPNONECRAMPL601(K

24、/P/J)L603(OTHERS)OUTPUT MUTEL601(K/P/J)L602(OTHERS)AC INRELAY POWERFAST OFFATT ONVIDEO2 RECVIDEO1 RECCD-R RECMD/TAPE1 RECMUTEQ11,12MUTEQ1,2IC4CD2/TAPE2 RECCENTERSUBSL.SRL.RDVD6ch INIC32VIDEO4 INCD1 INCD2/TAPE2 MONICD-R INMD/TAPE1 INIC22VIDEO3 INVIDEO1 INVIDEO2 INFM AMTUNERIC1EQPHONO INIC28IC8.9ADCIC

25、7DIRIC6DSPEP ROMSDRAMSDRAMDACIC31X08 IC32X08 IC33X08 IC34DACDACDACIC11X08IC17IC14X08X08IC20IC12,13IC18,19IC21,22IC15,16IC18,19TONEIC34IC23IC5IC26IC27 (2/2)IC27 (1/2)IC24FL.FRVOLUMEVOLUMECENTERSBL.SBRVOLUMEVOLUMESL.SRSUB WVOLUMEVOLUMEZONE BIC8IC10IC12IC35IC10IC6IC9IC11IC36IC13IC7IC11Q1,2Q101Q51,52Q30

26、1-320MUTEPHONESL.RSL.SRCSL.SRCL.RZONE B-SPEAKERSZONE BSWSBL.SBRB-SPEAKERSA-SPEAKERSPRE OUT1VIC23IC24VIDEO3DVDCOMPONENTYCbCrMONITOR OUTX13,IC701-703 or X35,IC1-3AV AUXVIDEO4 VIDEO2VIDEO3VIDEO1IC22IC21DVD/6chDECODER4.43MHz3.58MHzIC5X35MUTEMUTEMUTEMUTEMUTEMUTEMUTEMUTEMUTE MONITORZONE BMUTEMUTEMUTEMONIT

27、ORZONE AVIDEO2 RECVIDEO1 RECOUTCOMPOSITESEPARATE CDVD/6chVIDEO1VIDEO3VIDEO2VIDEO4 AV AUXIC602VIDEO1 RECVIDEO2 RECMONITORMUTEMUTEMUTE C OUTAV AUXDVD/6chVIDEO4 VIDEO2VIDEO3VIDEO1SEPARATE YIC601Y OUTVIDEO2 RECVIDEO1 RECMUTEMUTEIC604IC606BPFIC603IC605MUTETRAPMONITORSYSTEM CONTROLSL16 TEXTTV POWER SENSOR

28、RELAY COMTROLRS232CRDSTUNERTONE ON/OFFDIG.ANA.SEL.INPUT ATTREC OUT SWANALOG SWZONE A SEL.ZONE B SEL.SUB-MUTEMUTE CONTROLPRE S.SBPRE ZONE BSP SL.SR/BFL.FR.C.SWOUTPUTTONE CONTROLVOLUME CONTROLRELAY ARELAY POWERRELAY BRELAY CSSP RELAY CONT.FLFL DRIVERMAIN u-COMSUB u-CONLED DISPLAYKEY MATRIXRF/IR RECEIV

29、ERDOOR MOTOR CONT.FAN DRIVEIR IN/OUT Bu-COMIR IN/OUT AI/V PROTECT DET.THERMAL SENSOROUT POWER DET.IR TRANSMITEP-ROMDACDSP UNITDIRDSPADCVIDEO SELECTORDIG.INPUT SEL.X25,ED1X25,1ICX13,IC3X08,IC43for VIDEO UNIT+6V 1st AVR+6V 1st AVRfor DSP UNITTONE CONTROLVOLUMEANALOG SWfor POWER AMP60V SUPPLY-35V AVRfo

30、r FL V-LOADFL FILAMENT-15V 1st AVRfor u-COM+30V forRELAYS & FANBACK UP5.6V AVRIR RECEIVERTHERMAL SENSORu-CON CONTROLX13,Q41X13,Q45X13,Q33,34X07,D100X07,Q407X13,D71X13,Q51X13,IC1POWER SUPPLYOP AMP17V AVRSUB TRANSMAIN TRANSAUDIO SECTIONVIDEO SECTION(X08-) , (X25- )(X25- )(X08- )(X07- )(X25- )(X11- )(X

31、13- ) / (X35- )(X11- )(X13- )VR-5080/5090/5700/5900KRF-X7775D/X7775D-S/X9995D/X9995D-SKRF-X7775D/X7775D-S/VR-5080/50906CIRCUIT DESCRIPTION0 : Pulldown,1:Pull upSET TYPETYPEBANDRECEIVING FREQUENCY RANGECHANNELSPACEIFPLLK, P, RK11700FM87.5MHz-108.0MHz100kHz+10.7MHz25kHzAM530kHz-1700kHz10kHz+450kHz10kH

32、zY, M, I,C, VK21610FM87.5MHz-108.0MHz100kHz+10.7MHz25kHzAM530kHz-1610kHz10kHz+450kHz10kHzK, PK41700RBDSFM87.5MHz-108.0MHz100kHz+10.7MHz25kHzAM530kHz-1700kHz10kHz+450kHz10kHzY, M, I, C, V, E, X, HE1FM87.5MHz-108.0MHz50kHz+10.7MHz25kHzAM531kHz-1602kHz9kHz+450kHz9kHzE, TE3RDSFM87.5MHz-108.0MHz50kHz+10.

33、7MHz25kHzAM531kHz-1602kHz9kHz+450kHz9kHz1. Initialization1-1 The Initial Setting Insert the power cord to AC wall outlet by pressing the “ON/STANDBY“ key.2. Destination List of Tuner3. Conditions according to the models or destination3-1 Distinction of Destination: u-com (X13,IC3) Port 54TypeVoltage

34、 : Max 5.0VK200.52K11.612.49K4(RBDS)2.513.39E3(RDS)3.414.45E14.475.00ModelsVoltage : Max 5.0VVR-5080NO00.37VR-5090YES0.391.10VR-5700YES1.121.84VR-5900-SYES1.862.49KRF-X9995D/D-SYES2.513.14KRF-X7775D/D-SYES3.163.88KRF-X9995D-S(M/X TYPE)NO3.904.61KRF-X7775D-S(M/X/V TYPE)NO4.635.003-2 Distinction of Mo

35、dels : u-com (X13,IC3) Port 53 Switching of RF or Front IR and Rear IR Receiver Terminal.P.chK1K2K4E1E31FM 98.3MFM 98.3MFM 98.3MFM 98.3MFM 98.3M2FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M3FM 89.1MFM 89.1MFM 89.1MFM 89.1MFM 89.1M4FM 108.0MFM 108.0MFM 108.0MFM 108.0MFM 108.0M5FM 90.0MFM 90.0MFM 90.0MFM

36、90.0MFM 90.0M6FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M7FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M8AM 1610KFM 87.5MAM 1610KFM 87.5MFM 87.5M9AM 1700KAM 1610KAM 1700KAM 1602KAM 1602K10AM 1000KAM 1000KAM 1000KAM 999KAM 999K11AM 630KAM 630KAM 630KAM 630KAM 630K12AM 1440KAM 1440KAM 1440KAM 1440KAM 1440K13FM

37、 106.0MFM 106.0MFM 106.0MFM 106.0MFM 106.0M14AM 530KAM 530KAM 530KAM 531KAM 531K15FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M16FM 98.0MFM 98.0MFM 98.0MFM 98.0MFM 98.0M17FM 98.5MFM 98.5MFM 98.5MFM 98.5MFM 98.5M18FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M19AM 990KAM 990KAM 990KAM 990KAM 990K20FM 97.4MFM 97

38、.4MFM 97.4MFM 97.7MFM 97.7M4. Tuner Preset MemoryP.chK1K2K4E1E321AM 530KAM 530KAM 530KAM 531KAM 531K22FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M23FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M24FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M25FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M26FM 87.5MFM 87.5MFM 87.5MFM 87.

39、5MFM 87.5M27FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M28FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M29FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M30FM 106.0MFM 106.0MFM 106.0MFM 106.0MFM 106.0M31FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M32FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M33FM 87.5MFM 87.5MFM 87.5MFM 87.5

40、MFM 87.5M34FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M35FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M36FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M37FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M38FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M39FM 108.0MFM 108.0MFM 108.0MFM 108.0MFM 108.0M40AM 1000KAM 1000KAM 1000KAM 945KA

41、M 945KKRF-X7775D/X7775D-S/VR-5080/50907CIRCUIT DESCRIPTION5.Test Mode5-1 Setting Method of the Test ModeTurn on the power supply while pressing the “INPUT SELECTOR DOWN“ key, to make a set in test mode.5-2 Canceling the Test ModeThe system is initialized and the test mode is cancelled if unplug the

42、AC power cord from an AC power wall outlet.5-3 Contents of the Test Mode The following operation is available when the FL is all lighting up mode only.KeyOperationDisplaySOUNDSet up the RF frequency to428MHz.RF BANDLISTEN MODESet up the RF frequency to422MHz.RF BANDTHXIndicated the tuner destination

43、 in the FL.EX. TYPE E1MEMORYChanged the dimmer off/1/2 cyclically.ALL FL Light ON6. Main Microcomputer: uPD784217A516 (X13, IC3)6-1 Main Microcomputer Periphery block diagramX13,IC6X11(IC2/21)LCD Remote Cont.Selector ICTransmitter ICProtectionNJU7312AMuPD17215GFX11(IC3/22/24) Selector ICX13,IC5NJU73

44、13AMSerialParallelFanX07,K6X11,IC23TC74HC164AFPWR RelaySelector ICX07,K1k4NJU7311AMSP. RelayX11,IC6 Vol. IC97991,294,9588TC9459N7882Mute CircuitX11,IC8X08,IC43Vol. ICSub u-ComTC9459N73,74uPD784224K507X11,IC10 Vol. IC TC9459N65,66TEXTUARTX11,IC12X13, IC3X25,ED1Vol. ICX25,J201FLTC9459NMain Microcomput

45、er36X11,IC35X25,IC1Vol. ICuPD784217A51637FL DriverTC9459NuPD780204X11,IC34Power/InputTone Cont. IC48,60Down KeyX25TC9184APPanel KeyModel Type5354DestinationX05-513X, IC2SWTuner Unit2580LC7213158,59PanelKRF-X9995DX05-510X, IC225,26,30REM2DoorVR-5900 onlyPLL for Remote938,1050ControlLV2105VExcept KRF-

46、X9995D andRotaryVideoX13(IC502,504,505)KRF-X7775DEncoderSelector IC(IC603,604,701703)X25,S19X25,IC401Relay Cont.RF/IR INIR ReceiverSWITCHIR SEL.Except KRF-X7775D (M/X/V TYPE) andKRF-X9995D/KRF-X9995D (M/X TYPE)VR-5900 onlySL16KRF-X7775D/X7775D-S/VR-5080/50908CIRCUIT DESCRIPTIONPort No.Port NameI/OFu

47、nction1REM DAOIR transmitter IC(X13,IC5) control data output.2REM CKOIR transmitter IC(X13,IC5) control clock output.3FL CLKOClock output to FL driver.4FL DINIData input from FL driver.5FL DOUTOData output to FL driver.6FL STBOStrobe output to FL driver.7FL RSTOReset output to FL driver.8ENC BIInput port of volume encoder.9VDD-+5V power supply.10ENC AIInput port of volume encoder.11SEL CLKOClock output to