Kenwood-KRFV7773D-avr-sm 维修电路原理图.pdf

AUDIO VIDEO SURROUND RECEIVERKRF-V7773D/V7773D-B 2000-4/B51-5616-00 (K/K) 2135KRF-V9993DSERVICE MANUALSTANDBYPHONESDOLBY DIGITALDTSMPEG96k fsD.R.I.V.E.HDCD INPUT SELECTOR DOOROPEN/CLOSEVOLUME CONTROLDOWNUPAV - AUXS VIDEOVIDEOL - AUDIO - RASPEAKERSCD 2 / TAPE 2MONITORBCLIPINDICATORPRO LOGIC3 STEREOON/STANDBY POWER+-+-DIGITAL OUTDVDCD1MD/TAPE1CD-RVIDEO2VIDEO3VIDEO4OPTICALDIGITAL INCOAXIALCrCbYCrCbYCrVIDEO4 INDVDINMONITOROUTCbYCOMPONENT VIDEOS VIDEOVIDEORECOUTPLAYINRECOUTPLAYINPLAYINPLAYINPLAYINMONITOROUTSURROUNDCENTERSUBWOOFERDVD/6 CH. INPUTVIDEO4VIDEO3VIDEO2VIDEO1DVDFRONTRLAUDIOSIGNAL GNDRLLRLRBLRAUDIOPRE OUTRF REMOTE ANTENNASYSTEMCONTROLPHONOCD1RECOUTPLAYINMD/TAPE1RECOUTPLAYINCD-RVIDEOAUDIOCENTERFRONTSURROUNDSUBWOOFERRECOUTPLAYINCD2/TAPE2MONITORSECOND ROOMPRE OUTSL 16TEXTIRRECEIVERINDC12V 20mAIR OUTLCDREMOTEREMOTERELAYCONTROLDC12V 20mATV ON/OFFSENSORDC5V 10mAIR OUT LCD IR RECEIVER INSURROUND SPEAKERSCENTER SPEAKERSDC12V 20mAIRREPEATEROUT(6 16)(6 16)ARLFRONT SPEAKERS(6 16)BLRARLCAC 120V 60HzSWITCHD TOTAL90W 0.75A MAXFM 75ANTENNAGNDAMAC 110 120VAC 220 240VSide plate(A50-1345-02)Panel(A60-1780-02)Front glass(B10-3571-02)Indicator(B12-0391-14)Indicator(B12-0392-04)Knob (K29-7728-03)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 board(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 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)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-)RadioFans.CN 收音机爱 好者资料库RF REMOTE CONTROL UNITRC-R09102WAY LCD REMOTE CONTROL UNIT+-+-123456789101112+100+100/BatteriesAM Loop Antenna (T90-0852-05)FM Antenna(T90-0855-05)Battery cover(A09-1166-08)Battery cover(A09-1177-08)Pen(W01-0976-08)Remote control unit(A70-1313-05): RC-R0912(A70-1344-05): RC-R0910ENTERVOLUMEUPDOWNCONFIRMON/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 the power cord to the shape 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 DIAGRAM . 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 license from Digital Theater Sys-tems, Inc. US Pat. No. 5,451,942 and other world-wide patents issues and pending. DTS and DTS Digital Surround are trademarks of Digital Theater Systems, Inc. 1996 Digital Theater Systems, Inc. All rights reserved. , HDCD, High Definition 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: 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.TMAccessoriesCautionsRadioFans.CN 收音机爱 好者资料库Whats on Power Touch?ENTERVOLUMEUPDOWNMUTESYS.POWER CONTRASTBACKLIGHTeditmoviemusicsoundlistenmodemacroCONFIRM123456781091. Joystick 2. Confirm button3. Mute button 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 / OFF 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 CONTROL 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 to 15 are located behind the door.Keys behindthe doorSTANDBYPHONESDOLBY DIGITALDTSMPEG96k fsD.R.I.V.E.HDCD INPUT SELECTOR DOOROPEN/CLOSEVOLUME CONTROLDOWNUPAV - AUXS VIDEOVIDEOL - AUDIO - RASPEAKERSBINPUTMODECD 2/TAPE 2MONITORLISTENMODESET UPSOUNDMULTICONTROLfi%P.CALLMEMORYAUTOBANDfi%ASPEAKERSCD 2 / TAPE 2MONITORBCLIPINDICATORPRO LOGIC3 STEREOPOWERON/STANDBY-ON OFFON/STANDBY POWER134568101112131516171819202122232425147922KRF-V9993D26Standby modeWhile the standby indicator of the unit is lit, a small amount of current is flowing into the units internal circuitry to back 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 :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 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 UNITRECREC345126Whats on Remot Control unit?Remote control2WAY LCD REMOTE CONTROL UNITMUSICMOVIETVCONFIRM/SHIFTAV POWERSYS.POWERTITLE/GUIDEMENUMACROF.SHIFT+-+-RECREC MODELEARNSOUNDTUNINGBANDLISTEN M.INPUT MODESTATUSDIMMERSUB W.MUTEENTERAUTO/MONOREPEATRANDOMINPUT SEL.TV SELECTDISPLAYSELECTAUDIOTHEMEFAVORITEINFO.EXITLAST 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. CH.(+/-)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)(REC 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 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 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)10 x3101011101010CN14CN6x2x5x5744111326x555HOOKX11(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 removing 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. Remove CN21 and screws (3) on X13(C/5).5. Remove screws (4 to 7).6. The fan motor can be separated by removing screws (8)and the connector (CN12) on X07 PCB.7. Take the PCB X25(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 figure (-).10. Replace the defective transistors.HOW TO REPLACE THE POWER TRANSISTOR.HOW TO REMOVE THE FRONT PANEL AND THE MOTOR.KRF-V7773D/V7773D-B/V9993D5CIRCUIT DESCRIPTION0 : Pull down,1:Pull upSET TYPETYPEBANDRECEIVING FREQUENCY RANGECHANNELSPACEIFPLLDIODE SW(X13) DSW3(R282,R285)DSW2(R292,R279)DSW1(R296,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, PK41700RBDSFM87.5MHz-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-108.0MHz50kHz+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-74.0MHz10kHz+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 DIODEX = TRANSISTOR SW(0=OFF/1=ON)1. Initialization1-1 The Initial Setting Insert the power cord to AC wall outlet by pressing thePOWER key.1-2 The Initial Condition Power On/Off: Off Volume Level: -66dB Audio Input Selector: TUNER Video Signal Input Selector: VIDEO1 Remote Control Sensor: Data Front In Speaker A: On Speaker B: Off CD2/TAPE2 MONITOR: Off(TAPE MODE) Tone : Off Loudness : Off Display Mode: DEVICE+DGTL/ANLG Digital Rec Mode: Off Dimmer: Dimmer 1 Input Mode: DGTL/ANLG-AUTO Digital Rec Mode: Off HDCD/DRIVE: HDCD/DRIVE AUTO Surround Mode: Stereo Room Size : Medium Wall Type: Medium Effect Level: 3 Midnight Mode : Off Distance: FL/FR:10ft: C:10ft: RS/LS: 5ft: SW:10ft Front Speaker: Large Center Speaker: Normal Surround Speaker: Normal Subwoofer: On SW Re-Mix: OFF Input Level: 0dB Each Speaker Level: 0dB Tone Bass: 0 Tone Treble: 0 Tuning Mode: Auto Preset Memory: Test frequency Last Band: FM FM Last Frequency: 87.5MHz (OTHER THAN): 76.0MHz (J) AM Last 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 ModeInitialized 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 frequency 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-com version.EX. Ver . XXXXXX-X(Main) u-comPD784215-GF570PANEL KEYFL DRVuPD780204FLPOWER ,INPUT UP/DOWN KEYSP. RLYMUTINGSELECTOR ICX11, IC3X13, IC81X13, IC22X11, IC5X13, IC82X25, IC4X11, IC1X25, IC3VOL. ICX11IC301304X13, IC71X25, IC1X25, ED1X08, IC40X13, IC1/5/7/8X05, IC2NJU71311SELECTOR ICNJU71312SELECTOR ICNJU71313SUB u-comuPD784036VIDEOPANEL DOORDESTINATIONSELECTOR ICBA7649LCD REMOTETRANSMIT ICuPD17215PLL for RemoconModelLV2105VTUNER UNITLC72131VOLUME ICTC9459FVOLUME ICTC9459FVOLUME ICTC9459FVOLUME ICTC9459FTONE CONTROL ICTC9184PROTECTIONPOWER RLYIR RECEIVER SL16UARTIR/RF Front/RearswitchIR/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 STOPHHL01FAN LOW SPEEDHLL11FAN HI SPEEDLLL10FAN LOW SPEEDHHH11HLH11FAN HI SPEEDLLH10Pin No.Pin NameI/ODescription66TEXT_TXOCD TEXT UART COMMUNICATION DATA OUT67SUB RESETOSUB u-COM RESET PORT68FL_DINIFL DRIVER (uPD780204) DATA IN69FL_DOUTOFL DRIVER (uPD780204) DATA OUT70FL_CLKOFL DRIVER (uPD780204) CLOCK71FL_RSTOFL DRIVER (uPD780204) RESET72FL_STBOFL DRIVER (uPD780204) STROBE73SDTIDATA COMMUNICATION BETWEEN MAIN & SUB u-COM74MDTODATA COMMUNICATION BETWEEN MAIN & SUB u-COM 75MCKOSUB u-COM CLOCK OUTPUT76MREQOCOMMUNICATION MASTER REQUEST BETWEEN MAIN & SUB u-COM77SREQICOMMUNICATION SLAVE REQUEST BETWEEN MAIN & SUB u-COM7810dBCTLO-10dB AMP CHANGEOVER (AMP ON:H)79SW MUTEOSPEAKER S/W MUTE80MUTEOPREOUT SURROUND MUTE81B_MUTEOPREOUT B MUTE(ROOM B)82A_MUTEOROOM A MUTE83DSW3ITUNER DESTINATION SW384RELAY_CSOCENTER/SURROUND SP. RELAY CONTROL85RELAY_BOSP.B RELAY CONTROL 86RELAY_AOSP.A RELAY CONTROL87RELAY_TROTRANSFORMER TAP CHANGEOVER88POWEROPOWER RELAY CONTROL89FAN_H/LOFAN MOTOR (H/L) CONTROL90FAN_ON/OFFOFAN MOTOR (ON/OFF)CONTROL9110WI10W DETECTION PORT921WI1W DETECTION PORT93IR SELECTOIR REMOTE CONTROL SENSOR CONTROL94V_PROTIVOLTAGE DETECTION FOR PROTECTION95I_PROTICURRENT DETECTION FOR PROTECTION96STBY_LEDOSTANDBY LED CONTROL97REM_RWRILCD REMOTE RWR98REM_ENBILCD REMOTE ENABLE99REM_REQOLCD REMOTE REQUEST100VSS-CONNECTED TO GND5. Switch Control5-1 Fan Control (X13, IC23)5-2 Door Open/Close Control : FL Driver(X25,IC1)DOOR OUT1(42Pin)DOOR OUT2(41