Kenwood-KRFV-7773-Service-Manual电路原理图.pdf

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1、AUDIO VIDEO SURROUND RECEIVERKRF-V7773D/V7773D-B2000-4/B51-5616-00 (K/K) 2135KRF-V9993DSERVICE MANUALSTANDBYPHONESDOLBY DIGITALDTSMPEG96k fsD.R.I.V.E.HDCD INPUT SELECTORDOOROPEN/CLOSEVOLUME CONTROLDOWNUPAV - AUXS VIDEOVIDEOL - AUDIO - RASPEAKERSCD 2 / TAPE 2MONITORBCLIPINDICATORPRO LOGIC3 STEREOON/S

2、TANDBY POWER+-+-DIGITALOUTDVDCD1MD/TAPE1CD-RVIDEO2VIDEO3VIDEO4OPTICALDIGITALINCOAXIALCr Cb Y Cr Cb Y CrVIDEO4 INDVDINMONITOROUTCbYCOMPONENT VIDEOS VIDEOVIDEORECOUTPLAYINRECOUTPLAYINPLAYINPLAYINPLAYINMONITOROUTSURROUNDCENTERSUBWOOFERDVD/6 CH. INPUTVIDEO4 VIDEO3 VIDEO2 VIDEO1DVDFRONTRLAUDIOSIGNAL GNDR

3、LLRLRBLRAUDIOPRE OUTRF REMOTE ANTENNASYSTEMCONTROLPHONOCD1RECOUTPLAYIN MD/TAPE1RECOUTPLAYINCD-RVIDEO AUDIO CENTER FRONTSURROUNDSUBWOOFERRECOUTPLAYIN CD2/TAPE2MONITORSECOND ROOMPRE OUTSL 16TEXTIRRECEIVERINDC12V 20mAIR OUTLCDREMOTEREMOTERELAYCONTROLDC12V 20mATV ON/OFFSENSORDC5V10mAIROUTLCDIRRECEIVER I

4、NSURROUND SPEAKERSCENTER SPEAKERSDC12V 20mAIRREPEATEROUT(6 16)(616)ARLFRONT SPEAKERS(6 16)BLRARLCAC 120V 60HzSWITCHD TOTAL90W 0.75A MAXFM 75ANTENNAGNDAMAC 110 120V AC 220 240VSide plate(A50-1345-02)Panel(A60-1780-02)Front glass(B10-3571-02)Indicator(B12-0391-14)Indicator(B12-0392-04)Knob (K29-7728-0

5、3)Phone jack(E11-0190-05)Knob(BUTTON)(K27-2388-04)Knob(K29-7742-04)Side plate(A50-1344-02)Cylindrical receptacle(E56-0026-05)Pin jack(E63-1121-05)Miniature phone jack(E11-0907-05)Pin jack(E63-1111-05)x2Pin jack(E63-1125-05)x2Pin jack(E63-1115-05)Cylindrical receptacle(E56-0030-05)x2Screw terminal bo

6、ard(E70-0118-05)Slide switch *(S31-3010-05)AC outlet *(E03-)Panel *(A29-)Pin jack(E63-1130-05)Screw terminal board(E70-0121-05)Pin jack(E63-1109-05)Pin jack(E63-1124-05)x2Pin jack(E63-1128-05)Oscillating module(W02-2717-05)Optical receiving module(W02-2716-05)Optical receiving module(W02-2716-05)Pin

7、 jack (E63-1120-05)Miniature phone jack(E11-0905-05)x6Miniature phone jack(E11-0906-05)70%Lock terminal board(E70-0080-05)Miniature phone jack(E11-0347-05)Power cord bushing *(J42-)Pin jack(E63-1111-05)Pin jack(E63-1113-05)Pin jack(E63-1123-05)Cylindrical receptacle(E56-0028-05)Pin jack(E63-1126-05)

8、x3Pin jack(E63-1117-05)Pin jack(E63-1119-05)Illust is KRF-V9993D.* Refer to parts list on page 63. AC power cord *(E30-)RF REMOTE CONTROL UNITRC-R09102WAY LCD REMOTE CONTROL UNIT+-+-12 345 678 910 11 12+10 0 +100/BatteriesAM Loop Antenna (T90-0852-05)FM Antenna(T90-0855-05)Battery cover(A09-1166-08)

9、Battery cover(A09-1177-08)Pen(W01-0976-08) Remote control unit(A70-1313-05): RC-R0912(A70-1344-05): RC-R0910ENTERV O L UM EUPDOWNCONFIRMON/STANDBYCONTRASTREMOTE OFFRemote control unit(PowerTouch)(A70-1350-05): RC-R1011(A70-1351-05): RC-R1010AC (E03-0115-05)plug adaptor.(1)Use to adapt the plug on th

10、e power cord totheshape of the wall outlet.(Accessory only for regions where use is necessary.)KRF-V7773D/V7773D-B/V9993D2CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2CONTROLS.3DISASSEMBLY FOR REPAIR.4CIRCUIT DESCRIPTION.5ADJUSTMENT.15WIRING DIAGRAM.16PC BOARD.17SCHEMATIC DIAG

11、RAM.30EXPLODED VIEW.61PARTS LIST.63SPECIFICATIONS.65ContentsManufactured 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. All rights reserved.Manufactured under l

12、icense 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 Definition Compatible Digitaland Pacific Mi

13、crosonics 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: IN the USA: 5,479,168, 5,638,074, 5,640

14、,161, 5,808,574, 5,838,274, 5,854,600, 5,864,311, 5,872,531, and in Australia: 669114. Other patents pending.TMAccessoriesCautionsWhats on Power Touch?ENTERVOLUMEUPDOWNMUTESYS.POWER CONTRAST BACKLIGHTedi tmovi emusi csoundlistenmodemacroCONFIRM12345 6 781091. Joystick 2. Confirm button3. Mute button

15、 4. Volume up/down button 5. Contrast button6. On/Standby button7. Backlight button 8. Quick Access menu9. Touch screen display10. Stylus (stored on top edge)KRF-V7773D/V7773D-B/V9993D3CONTROLS1. STANDBY indicator light2. POWER ON/STANDBY key(VR-4900/VR-4700)ON STANDBY key(KRF-V9993D)3. POWER ON / O

16、FF switch (KRF-V9993D)4. PHONES jack5. SPEAKERS A/B key6. INPUT MODE key7. CD 2/TAPE 2 MONITOR key8. LISTEN MODE key9. SET UP key10. SOUND key11. MULTI CONTROL (Up/Down) keys12. P. CALL (Up/Down) keys13. MEMORY key14. AUTO key15. BAND key16. AV-AUX input jacks17. DOOR OPEN/CLOSE key18. VOLUME CONTRO

17、L knob19. INPUT SELECTOR keys20. IndicatorsCLIP INDICATORPRO LOGIC3 STEREO21. IndicatorsDTS / 96 k fs / HDCDDOLBY DIGITAL / MPEGD. R. I. V. E. 22. DISPLAY 23. 2-way communication indicator 24. Infrared remote sensor 25. IndicatorsSPEAKER A/BCD 2/TAPE 2 MONITOR 26. Infrared remote transmitterKeys 5 t

18、o 15 are located behind the door.Keys behindthe doorSTANDBYPHONESDOLBY DIGITAL DTSMPEG 96k fsD.R.I.V.E. HDCD INPUT SELECTOR DOOROPEN/CLOSEVOLUME CONTROLDOWN UPAV - AUXS VIDEO VIDEO L - AUDIO - RA SPEAKERS B INPUTMODE CD 2/TAPE 2MONITOR LISTENMODE SET UP SOUND MULTICONTROL% P.CALL MEMORY AUTO BAND%A

19、SPEAKERS CD 2 / TAPE 2MONITORBCLIPINDICATOR PRO LOGIC 3 STEREOPOWERON/STANDBY-ON OFFON/STANDBYPOWER13 4 5 6 8 10 11 12 13 15 16171819202122232425147 922KRF-V9993D26Standby modeWhile the standby indicator of the unit is lit, a small amount of current is flowing into the units internal circuitry to ba

20、ck up the memory. This condition is referred to as the standby mode of the unit. While the unit is in the standby mode, it can be turned ON from the remote control unit.Whats on the Front Panel of Your Kenwood Audio-Video Receiver?LCD Indicators1. Playback/recording mode indicatorsPlay indicator/ 8

21、:Pause indicator/ REC:Record indicator/7 :Stop indicator2. Character displayShows various information such as the input device name and track number.3. Current function of LCD function key 14. Current function of LCD function key 25. Communication indicators:Sending. :Receiving.6.Battery indicator“

22、“appears when the batteries are nearly exhausted.In this case, replace all of the four batteries together.To switch the menu:The menu can be switched over or selected while LCD function key 1 and/or 2 are displayed.(Examples:Home,Back,Menu,Enter,etc.)2WAY LCD REMOTE CONTROL UNITREC3 45126Whats on Re

23、mot Control unit?Remote control2WAY LCD REMOTE CONTROL UNITMUSIC MOVIE TVCONFIRM/SHIFTAV POWER SYS.POWERTITLE/GUIDE MENUMACROF.SHIFT+-+-RECREC MODELEARNSOUNDTUNINGBANDLISTEN M.INPUT MODE STATUSDIMMERSUB W.MUTEENTERAUTO/MONOREPEAT RANDOM INPUT SEL.TV SELECT DISPLAY SELECTAUDIO THEME FAVORITEINFO. EXI

24、T LAST CHANNELREMOTE CONTROL UNITCH.CH. VOL.VOL.RETURN/PAGE OSD/PAGE123456798111013141215182022241617192123251. LCD indicators2. LCD function key 23. LCD function key 14. CONFIRM/SHIFT key5. MACRO key6. AV.POWER key (AV device Power key)7. AV device control keys : Play4 , : Skip8 : Pause7 : Stop8. C

25、H.(+/-)key (AV device control keys)9. SOUND (INPUT MODE) key10. LISTEN M.(DIMMER) key11. TITLE/GUIDE key (AV device control key)12. 5Cursor up (8 PAUSE)keyCursor down (AUTO/MONO, 7 STOP) key left,right (TUNING)keys ENTER (BAND)(Play)key13. RETURN/PAGE key (AV device control key)14. REC (Recording)(R

26、EC MODE) key515. Numeric keys (AV device control keys)16. LCD cursor up/down keys17. Input selector keysMUSIC: Audio device selector keyMOVIE: Video device selector keyTV: TV/video monitor selector key18. SYS.POWER (Receiver power)key19. VOL.(+/-)keys20. MUTE key21. SUB W.(STATUS)key22. MENU key (AV

27、 device control keys)23. OSD/PAGE 5 key (AV device control key)24. LEARN key25. F.SHIFT (Backlight)keyHow to operate the F.SHIFT key:In addition to the functions marked on the remote control keys,those marked in blue characters above the keys can be used.To use these functions,press the F.SHIFT key

28、then press the desired key within 8 seconds. (Example)To use the REPEAT function,press the F.SHIFT key then press key 1 (REPEAT).KRF-V7773D/V7773D-B/V9993D4DISASSEMBLY FOR REPAIR1x70X07(C/7)CN2X25(C/9)X05-5130-11X07X13(C/5)CN12CN2145778332222229667x9x22x2x2X07-3150-10(A/5)X25(B/9)X11(C/4)10x31010111

29、01010CN14CN6x2x5x5744111326x555HOOKX11(A/4)CN301CN7CN8X13X07,CN1MOTORAC CONNECTORH/PPCBX25(G/8)1. Take out the connectors (1) X07,CN1/X13(CN7,CN8) andthe AC connetor(2).2. Take the lead (3) out of CN301 on X11(A/4) PCB.3. Take out the screws (4) and (5).4. The front panel can be separated by removin

30、g 2 hooks (6)on the sub panel.5. To separate the motor from the front panel, remove thescrews (7).1. The rear panel can be separated by removing screws (1)on the rear panel.2. Take the AC connector out of CN2 on the X07(C/7).3. To separate the chassis from bottom chassis, remove thescrews (2).4. Rem

31、ove CN21 and screws (3) on X13(C/5).5. Remove screws (4to 7).6. The fan motor can be separated by removing screws (8)and the connector (CN12) on X07 PCB.7. Take the PCBX25(B/9), X11(C/4) out of X07.8. To separate the main PCB (X07) from the bottom chassis,remove screws (0).9. Set up the PCB as figur

32、e (-).10. Replace the defective transistors. HOW TOREPLACE THE POWER TRANSISTOR.HOW TOREMOVE THE FRONT PANEL AND THE MOTOR.KRF-V7773D/V7773D-B/V9993D5CIRCUIT DESCRIPTION0 : Pulldown,1:Pull upSET TYPETYPEBANDRECEIVING FREQUENCY RANGECHANNELSPACEIFPLLDIODE SW(X13) DSW3(R282,R285)DSW2(R292,R279)DSW1(R2

33、96,R284)DSW0(R297,R288)K, P, RK11700FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz0000AM530kHz-1700kHz10kHz+450kHz10kHzY, M, I,C, VK21610FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz0011AM530kHz-1610kHz10kHz+450kHz10kHzYK31610RBDSFM87.5MHz-108.0MHz100kHz+10.7MHz25kHz0010AM530kHz-1610kHz10kHz+450kHz10kHzK, PK41700RBD

34、SFM87.5MHz-108.0MHz100kHz+10.7MHz25kHz1010AM530kHz-1700kHz10kHz+450kHz10kHzY, M, I, C, V, E, X, HE1FM87.5MHz-108.0MHz50kHz+10.7MHz25kHz0001AM531kHz-1602kHz9kHz+450kHz9kHzTE2LWFM87.5MHz-108.0MHz50kHz+10.7MHz25kHz0100MW531kHz-1602kHz9kHz+450kHz9kHzLW153kHz-279kHz9kHz+450kHz9kHzE, TE3RDSFM87.5MHz-108.0

35、MHz50kHz+10.7MHz25kHz0101AM531kHz-1602kHz9kHz+450kHz9kHzTE4LWRDSFM87.5MHz-108.0MHz50kHz+10.7MHz25kHz0110MW531kHz-1602kHz9kHz+450kHz9kHzLW153kHz-279kHz9kHz+450kHz9kHzQQ1RDSFM L65.0MHz-74.0MHz10kHz+10.7MHz5kHz1011FM H87.5MHz-108.0MHz50kHz+10.7MHz5kHzAM531kHz-1602kHz9kHz+450kHz9kHzQQ2RDSFM L65.0MHz-74.

36、0MHz10kHz+10.7MHz5kHz1100FM H87.5MHz-108.0MHz50kHz+10.7MHz5kHzMW531kHz-1602kHz9kHz+450kHz9kHzLW153kHz-279kHz9kHz+450kHz9kHzY, M, I,C, VMK2/E1 are switched by DSW1.(DSW1 = 1:K2type, 0:E1type)00X1YYRBDSK3/E1 are switched by DSW0.(DSW0 = 0:K3type, 1: E1type)X001XDIODE SW(DSWx) 0 = NO DIOE(1 = WITH DIOD

37、EX = TRANSISTOR SW(0=OFF/1=ON)1. Initialization1-1 The Initial SettingInsert the power cord to AC wall outlet by pressing the“POWER“ key.1-2 The Initial ConditionPower On/Off:OffVolume Level: -66dBAudio Input Selector:TUNERVideo Signal Input Selector:VIDEO1Remote Control Sensor:Data Front InSpeaker

38、A:OnSpeaker B:OffCD2/TAPE2 MONITOR:Off(TAPE MODE)Tone :OffLoudness :OffDisplay Mode: DEVICE+DGTL/ANLGDigital Rec Mode:OffDimmer:Dimmer 1Input Mode:DGTL/ANLG-AUTODigital Rec Mode:OffHDCD/DRIVE:HDCD/DRIVE AUTOSurround Mode:StereoRoom Size :MediumWall Type:MediumEffect Level:3Midnight Mode :OffDistance

39、:FL/FR:10ft:C:10ft:RS/LS: 5ft:SW:10ftFront Speaker:LargeCenter Speaker:NormalSurround Speaker:NormalSubwoofer:OnSW Re-Mix:OFFInput Level:0dBEach Speaker Level:0dBTone Bass:0Tone Treble:0Tuning Mode:AutoPreset Memory:Test frequencyLast Band:FM FM Last Frequency:87.5MHz (OTHER THAN):76.0MHz (J)AM Last

40、 Frequency:531kHz (CH.SP 9kHz):530kHz (CH.SP 10kHz)Last P.ch: -ch2. Destination List of TunerKRF-V7773D/V7773D-B/V9993D6CIRCUIT DESCRIPTION3. Test Mode3-1 Entering the Test ModeWhile pressing the “INPUT SELECTOR DOWN“ key, plug the power cord into AC wall outlet.3-2 Cancelling the Test ModeInitializ

41、ed and cancel the test mode if pulling out the power cord. Not initialized and cancel the test mode if the power switch turns off.3-3 Contents of the Test Mode3-3-1 Key OperationThe following operation is available when the FL is all lighting up mode only.KEYOPERATIONDISPLAYSOUND Set up the RF frequ

42、ency to 411.3MHz.RF 417.3MHzLISTEN MODESet up the RF frequency to 414.3MHz.RF 414.3MHzINPUT MODESet up the RF frequency to 411.3MHz.RF 417.3MHzSET UPIndicates Tuner destination on the FL. EX. TYPE E1TYPE E2MEMORYChanged dimmer off/1/2cyclically.All FL light onALL FL light offBAND KEYIndicates the u-

43、com version.EX. Ver . XXXXXX-X(Main)u-comPD784215-GF570PANEL KEYFL DRVuPD780204FLPOWER,INPUTUP/DOWN KEY SP. RLYMUTINGSELECTOR ICX11, IC3X13, IC81X13, IC22X11, IC5X13, IC82X25, IC4X11, IC1X25, IC3VOL. ICX11IC301304X13, IC71X25, IC1X25, ED1X08, IC40X13, IC1/5/7/8X05, IC2NJU71311SELECTOR ICNJU71312SELE

44、CTOR ICNJU71313SUB u-comuPD784036VIDEOPANEL DOORDESTINATIONSELECTOR ICBA7649LCD REMOTETRANSMIT ICuPD17215PLL for RemoconModelLV2105VTUNER UNITLC72131VOLUME ICTC9459F VOLUME ICTC9459F VOLUME ICTC9459F VOLUME ICTC9459FTONE CONTROL ICTC9184PROTECTIONPOWERRLYIR RECEIVERSL16 UARTIR/RF Front/RearswitchIR/

45、RF Front/RearswitchROTARYENCODERRELAY CONTROLFAN4. Main Microprocessor : uPD784215-GF570 (X13, IC23)4-1 Main Microprocessor Periphery Block DiagramKRF-V7773D/V7773D-B/V9993D7CIRCUIT DESCRIPTION10W(91Pin) 1W(92Pin) THERM SW(56Pin) FAN ON/OFF(90Pin) FAN H/L(89Pin)FAN STOP H H L 0 1FAN LOW SPEED H L L

46、1 1FAN HI SPEED L L L 1 0FAN LOW SPEEDHH H 1HL 1FAN HI SPEED L L H 1 0Pin No. Pin Name I/O Description66 TEXT_TX O CD TEXT UART COMMUNICATION DATA OUT67 SUB RESET O SUB u-COM RESET PORT68 FL_DIN I FL DRIVER (uPD780204) DATA IN69 FL_DOUT O FL DRIVER (uPD780204) DATA OUT70 FL_CLK O FL DRIVER (uPD78020

47、4) CLOCK71 FL_RST O FL DRIVER (uPD780204) RESET72 FL_STB O FL DRIVER (uPD780204) STROBE73 SDT I DATA COMMUNICATION BETWEEN MAIN & SUB u-COM74 MDT O DATA COMMUNICATION BETWEEN MAIN & SUB u-COM 75 MCK O SUB u-COM CLOCK OUTPUT76 MREQ O COMMUNICATION MASTER REQUEST BETWEEN MAIN & SUB u-COM77 SREQ I COMMUNICATION SLAVE REQUEST BETWEEN MAIN & SUB u-COM78 10dB CTL O -10dB AMP CHANGEOVER (AMP ON:H)79 SW MUTE O SPEAKER S/W MUTE80 MUTE O PREOUT SURROUND MUTE81 B_MUTE O PREOUT B MUTE(ROOM B)82 A_MUTE O ROOM A MUTE83 DSW3 I TUNER DESTINATION SW384 RELAY_CS O CENTER/SURROUND SP.