Kenwood-VR-4900-Service-Manual电路原理图.pdf

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1、STANDBYON/STANDBYPHONESDOLBY DIGITALDTSMPEG96kfsD.R.I.V.E.HDCDINPUT SELECTORVOLUME CONTROLDOWNUPS VIDEOVIDEOL - AUDIO - RASPEAKERSCD 2 / TAPE 2MONITORBCLIPINDICATORPRO LOGIC3STEREOAV AUXPOWERDIGITAL OUTDVDCD1MD/TAPE1CD-RVIDEO2VIDEO3VIDEO4OPTICALDIGITAL INCOAXIALS VIDEOVIDEORECOUTPLAYINRECOUTPLAYINPL

2、AYINPLAYINPLAYINMONITOROUTSURROUNDCENTERSUBWOOFERDVD/6 CH. INPUTVIDEO4 VIDEO3 VIDEO2 VIDEO1DVDFRONTRLAUDIOSIGNAL GNDRLLRLRAUDIOPRE OUTRF REMOTE ANTENNASYSTEMCONTROLPHONOCD1RECOUTPLAYIN MD/TAPE1RECOUTPLAYINCD-RCENTER FRONTSURROUNDSUBWOOFERRECOUTPLAYIN CD2/TAPE2MONITORSL 16TEXTREMOTE IR OUT LCDIR RECE

3、IVER INSURROUND SPEAKERSCENTER SPEAKERDC12V 20mAIRREPEATEROUTRLFRONT SPEAKERSBLRARLCAC 120V 60HzSWITCHED TOTAL90W 0.75A MAXANTENNAGNDAMKnob(K29-7729-04)Panel (A60-1777-02)Front glass(B10-3571-02)Indicator(B12-0391-14)Knob (K29-7740-03)Phone jack(E11-0190-05)Panel(A29-1085-13)Knob(K29-7743-04)Cylindr

4、ical receptacle(E56-0026-05)Pin jack(E63-1121-05)Optical receiving module(W02-2716-05)x7Pin jack(E63-1119-05)AC Power cord bushing(J42-0157-05)Pin jack(E63-1130-05)Pin jack(E63-1111-05)x3Miniature phone jack(E11-0906-05)Pin jack (E63-1125-05)x2Pin jack(E63-1109-05)Pin jack(E63-1111-05)Oscillating mo

5、dule(W02-2717-05)Pin jack(E63-1123-05)Miniature phone jack(E11-0347-05)Miniature phone jack(E11-0905-05)Pin jack(E63-1128-05)Screw terminal board(E70-0118-05)AC outlet(E03-0148-05)Illustration is VR-4090-B.Cylindrical receptacle(E56-0028-05)AUDIO VIDEO SURROUND RECEIVERVR-4080-B/4090-BVR-4700/4900SE

6、RVICE MANUAL2000-4/B51-5612-00 (K/K) 138070%Pin jack(E63-1113-05)Pin jack(E63-1124-05)x2Screw terminal board(E70-0121-05)Pin jack(E63-1117-05)Miniature phone jack(E11-0907-05)Lock terminal board(E70-0080-05)Cylindrical receptacle(E56-0030-05)x2AC power cord(E30-2944-05)RF REMOTE CONTROL UNITRC-R0910

7、2WAY LCD REMOTE CONTROL UNIT+-+-12 345 678 910 11 12+10 0 +100/BatteriesAM Loop Antenna (T90-0852-05)RF remote Antenna(T90-0850-05)FM Antenna(T90-0855-05)Battery cover(A09-1166-08)Battery cover(A09-1177-08)Pen(W01-0976-08)Remote control unit(A70-1312-05): RC-R0911ENTERV O L UM EUPDOWNCONFIRMON/STAND

8、BYCONTRASTREMOTE OFFRemote control unit(PowerTouch)(A70-1349-05): RC-R1110VR-4080-B/4090-B/4700/49002CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2CONTROLS.3DISASSEMBLY FOR REPAIR.5CIRCUIT DESCRIPTION.6ADJUSTMENT.16WIRING DIAGRAM.18PC BOARD.19SCHEMATIC DIAGRAM.32EXPLODED VIEW.6

9、3PARTS LIST.65SPECIFICATIONS.77ContentsAccessoriesCautionsManufactured 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 und

10、er 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., HDCDcurrency1, High Definition Compatible Digi

11、talcurrency1and 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

12、,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.TMMODEL vs PCBMODELDESTIX05-510X05-513X07-315X08-302X11-387X13-770X25-632X35-223X92-219VR-4080-BK0-100-110-110-100-100-100-12VR-4080BP0-100-110-110-100-100-100-12VR-

13、4090-BK0-100-110-100-100-110-110-11VR-4090-BP0-100-110-100-100-110-110-11VR-4700K0-100-110-100-100-110-110-11VR-4700P0-100-110-100-100-110-110-11VR-4900K0-100-100-100-110-120-120-100-100-10VR-4080-B/4090-B/4700/49003CONTROLS1. STANDBY indicator light2. POWER ON/STANDBY key(VR-4090/VR-4080)ON/STANDBY

14、 key(KRF-V7773D)3. POWER ON /OFF switch (KRF-V7773D)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) key12. P.CALL (Up/Down) key13. MEMORY key14. AUTO key15. BAND key16. AV AUX input jacks17. VOLUME CO

15、NTROL knob18. INPUT SELECTOR key19. IndicatorsCLIP INDICATORPRO LOGIC3 STEREO20. IndicatorsDTS /96 k fs /HDCDDOLBY DIGITAL /MPEG /D.R.I.V.E.21. D I S P LAY22. 2-way communication indicator23. Infrared remote sensor (KRF-V7773D only)24. IndicatorsSPEAKERS A/BCD 2/TAPE 2 MONITOR25. Infrared remote tra

16、nsmitterKey 5 to 15 are located inside the panel door.Whats on the Front Panel of Your Kenwood Audio-Video Receiver?Standby mode While the standby indicator of the unit is lit,a small amount of current is flowing into the unit s internal circuitry to back up thememory.This condition is referred to a

17、s the standby mode of the unit.While the unit is in the standby mode,it can be turned ONfrom the remote control unit.STANDBYON/STANDBYPHONESDOLBY DIGITAL DTSMPEG 96kfsD.R.I.V.E. HDCDINPUT SELECTORVOLUME CONTROLDOWN UPS VIDEO VIDEO L - AUDIO - RA SPEAKERS B INPUTMODE CD 2/TAPE 2MONITOR LISTENMODE SET

18、 UP SOUND MULTICONTROL P.CALL MEMORY AUTO BANDA SPEAKERSCD 2 / TAPE 2MONITORBCLIPINDICATOR PRO LOGIC 3 STEREOAV AUX1223 4 5 6 8 10 11 12 13 15 1617181920212324147 9POWERPOWERON/STANDBYON OFFKRF-V7773D2225Keys behindthe doorMain unitWhats on Remot Control unit?Remote control2WAY LCD REMOTE CONTROL UN

19、ITMUSIC 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. EXIT LAST CHANNELREMOTE CONTROL UNITCH.CH. VOL.VOL.RETURN/PA

20、GE 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)

21、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.

22、 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 contro

23、l 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

24、use the REPEAT function,press the F.SHIFT key then press key 1 (REPEAT).VR-4080-B/4090-B/4700/49004CONTROLSLCD Indicators1. Playback/recording mode indicatorsPlay indicator/ 8 :Pause indicator/ REC:Record indicator/7 :Stop indicator2. Character displayShows various information such as the input devi

25、ce 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

26、: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 Power Touch?(RC-R1110)ENTERVOLUMEUPDOWNMUTESYS.POWER CONTRAST BACKLIGHTeditmovi emusi csoundlistenmodemacroCONFIRM12345 6 7810

27、91. 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)x2x5x5744111326x555HOOKX11(A/4)CN301CN7CN8X13X07,CN1MOTORAC CONNECTORH/PPCBX25(G/8)VR-4080-B/4090-

28、B/4700/49005DISASSEMBLY FOR REPAIR1x70X07(C/7)CN2X25(C/9)X05-5130-11X07X13(C/5)CN12CN2145778332222229667x9x22x2x2X07-3150-10(A/5)X25(B/9)X11(C/4)10x3101011101010CN14CN61. 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

29、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.

30、 To separate the chassis from bottom chassis, remove thescrews (2).4. Remove 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 (

31、X07) from the bottom chassis,remove screws (0).9. Set up the PCB as figure (-).10. Replace the defective transistors. HOW TOREPLACE THE POWER TRANSISTOR.HOW TOREMOVE THE FRONT PANEL AND THE MOTOR.VR-4080-B/4090-B/4700/49006CIRCUIT DESCRIPTION0 : Pulldown,1:Pull upSET TYPETYPEBANDRECEIVING FREQUENCY

32、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.

33、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-160

34、2kHz9kHz+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.

35、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.

36、(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 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:TUNERVide

37、o Signal Input Selector:VIDEO1Remote Control Sensor:Data Front InSpeaker 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:Stereo

38、Room Size :MediumWall Type:MediumEffect Level:3Midnight Mode :OffDistance: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 freque

39、ncyLast 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 TunerVR-4080-B/4090-B/4700/49007CIRCUIT DESCRIPTION3. Test Mode3-1 Entering the Test ModeWhile pressing the “INPUT SELECTOR DOWN“ key, plug

40、 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

41、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

42、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,INPUTUP/DOWN KEY SP. RLYMUTINGSELECTOR ICX11, IC3X13, IC81X13, IC22X11, IC5X13, IC82X25, IC4X11, IC1X25, IC3VOL. ICX11IC301304X13, IC71X25,

43、IC1X25, ED1X08, IC40X13, IC1/5/7/8X05, IC2NJU71311SELECTOR ICNJU71312SELECTOR ICNJU71313SUB u-comuPD784036VIDEOPANEL DOORDESTINATIONSELECTOR ICBA7649LCD REMOTETRANSMIT ICuPD17215PLL for RemoconModelLV2105VTUNER UNITLC72131VOLUME ICTC9459F VOLUME ICTC9459F VOLUME ICTC9459F VOLUME ICTC9459FTONE CONTRO

44、L ICTC9184PROTECTIONPOWERRLYIR RECEIVERSL16 UARTIR/RF Front/RearswitchIR/RF Front/RearswitchROTARYENCODERRELAY CONTROLFAN4. Main Microprocessor : uPD784215-GF570 (X13, IC23)4-1 Main Microprocessor Periphery Block DiagramVR-4080-B/4090-B/4700/49008CIRCUIT DESCRIPTIONPin No. Pin Name I/O Description1-

45、8 REM_D0-D7 O LCD ROMOTE DATA OUT (0-7)9 VDD - +5V POWER SUPPLY10 VOL_DATA O VOLUME IC DATA OUT11 VOL_CLK O VOLUME IC CLOCK12 VOL_STB O VOLUME IC STROBE13 TONE_STB O TONE IC STROBE14 VOL/TONE/SEL_DATA O TONE/SELECTOR IC DATA OUT15 VOL/TONE/SEL_CLK O TONE/SELECTOR IC CLOCK16-18 SEL_STB1-3 O SELECTOR

46、IC STROBE1-319 MODEL1 I DISCRIMINATION SW1 FOR MODEL20 MODEL2 I DISCRIMINATION SW2 FOR MODEL21 RF_PLL_CE O PLL(V2105V)CE FOR RF REMOTE CONTROL22 VPP TEST - CONNECTED TO GND23 STEREO I PLL(LC72131) STEREO24 SD I PLL(LC72131) SD25 RF PLL_CLK O PLL(LC72131) CLOCK RF REMOTE CONTROL(V2105V) CLOCK26 RF PL

47、L_DATA O PLL(LC72131) DATA RF REMOTE CONTROL PLL(V2105V) DATA27 PLL_DO I PLL(LC72131) DO28 PLL_CE O PLL(LC72131) CE29 T_MUTE O TUNER MUTE30 RELAY_CONT O RELAY CONTROL OUTPUT(REFER TO 5. SW CONTROL)31-33 P_MACRO_A-C O PERFECT MACRO (A-C)34 TV_SENS I TV SIGNAL DETECTION35 ENC_A I VOLUME ENCODER INPUT A36 ENC_B I VOLUME ENCODER INPUT B37 VDD - +5V POWER SUPPLY38 X2 O 12.5MHz OSCILLATOR39 X1 I 12.5MHz OSCILLATOR40 VSS - GND41 XT2 - UNUSED42 XT1 - CONNECTED TO GND43 RESET I MAIN u-COM RESET44 CE I CHIP ENABLE45 DSW1 I TUNER DESTINATION SW146